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annotate z80inst.c @ 203:0ae589d4c3f9

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Add support for 2-byte IX instructions to decoder
author Mike Pavone <pavone@retrodev.com>
date Tue, 22 Jan 2013 20:21:05 -0800
parents 693ad04b965e
children 02dfa5962522
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
1 #include "z80inst.h"
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2 #include <string.h>
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3 #include <stdio.h>
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4
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
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diff changeset
5 #define NOP {Z80_NOP, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 1}
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6 #define NOP2 {Z80_NOP, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 2}
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
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7
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
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8 z80inst z80_tbl_a[256] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
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9 //0
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
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diff changeset
10 NOP,
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
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11 {Z80_LD, Z80_BC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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12 {Z80_LD, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
13 {Z80_INC, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
14 {Z80_INC, Z80_B, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
15 {Z80_DEC, Z80_B, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
16 {Z80_LD, Z80_B, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
17 {Z80_RLC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
18 {Z80_EX, Z80_AF, Z80_REG, Z80_AF, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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19 {Z80_ADD, Z80_HL, Z80_REG, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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20 {Z80_LD, Z80_A, Z80_REG_INDIRECT, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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21 {Z80_DEC, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
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22 {Z80_INC, Z80_C, Z80_UNUSED, Z80_UNUSED, 0},
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23 {Z80_DEC, Z80_C, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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24 {Z80_LD, Z80_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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25 {Z80_RRC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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26 //1
69585e7d474f Add initial stab at Z80 decoder and disassembler
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27 {Z80_DJNZ, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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28 {Z80_LD, Z80_DE, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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29 {Z80_LD, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_DE, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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30 {Z80_INC, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
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31 {Z80_INC, Z80_D, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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32 {Z80_DEC, Z80_D, Z80_UNUSED, Z80_UNUSED, 0},
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33 {Z80_LD, Z80_D, Z80_IMMED, Z80_UNUSED, 0},
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34 {Z80_RL, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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35 {Z80_JR, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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36 {Z80_ADD, Z80_HL, Z80_REG, Z80_DE, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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37 {Z80_LD, Z80_A, Z80_REG_INDIRECT, Z80_DE, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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38 {Z80_DEC, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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39 {Z80_INC, Z80_E, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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40 {Z80_DEC, Z80_E, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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41 {Z80_LD, Z80_E, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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42 {Z80_RR, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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43 //2
69585e7d474f Add initial stab at Z80 decoder and disassembler
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44 {Z80_JRCC, Z80_CC_NZ, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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45 {Z80_LD, Z80_HL, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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46 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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47 {Z80_INC, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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48 {Z80_INC, Z80_H, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
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49 {Z80_DEC, Z80_H, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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50 {Z80_LD, Z80_H, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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51 {Z80_DAA, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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52 {Z80_JRCC, Z80_CC_Z, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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53 {Z80_ADD, Z80_HL, Z80_REG, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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54 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT, Z80_IMMED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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55 {Z80_DEC, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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56 {Z80_INC, Z80_L, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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57 {Z80_DEC, Z80_L, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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58 {Z80_LD, Z80_L, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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59 {Z80_CPL, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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60 //3
69585e7d474f Add initial stab at Z80 decoder and disassembler
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61 {Z80_JRCC, Z80_CC_NC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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62 {Z80_LD, Z80_SP, Z80_IMMED, Z80_UNUSED, 0},
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63 {Z80_LD, Z80_A, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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64 {Z80_INC, Z80_SP, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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65 {Z80_INC, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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66 {Z80_DEC, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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67 {Z80_LD, Z80_USE_IMMED, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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68 {Z80_SCF, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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69 {Z80_JRCC, Z80_CC_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
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70 {Z80_ADD, Z80_HL, Z80_REG, Z80_SP, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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71 {Z80_LD, Z80_A, Z80_IMMED_INDIRECT, Z80_IMMED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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72 {Z80_DEC, Z80_SP, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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73 {Z80_INC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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74 {Z80_DEC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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75 {Z80_LD, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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76 {Z80_CCF, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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77 //4
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78 {Z80_LD, Z80_B, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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79 {Z80_LD, Z80_B, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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80 {Z80_LD, Z80_B, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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81 {Z80_LD, Z80_B, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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82 {Z80_LD, Z80_B, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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83 {Z80_LD, Z80_B, Z80_REG, Z80_L, 0},
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84 {Z80_LD, Z80_B, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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85 {Z80_LD, Z80_B, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
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86 {Z80_LD, Z80_C, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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87 {Z80_LD, Z80_C, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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88 {Z80_LD, Z80_C, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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89 {Z80_LD, Z80_C, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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90 {Z80_LD, Z80_C, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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91 {Z80_LD, Z80_C, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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92 {Z80_LD, Z80_C, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
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93 {Z80_LD, Z80_C, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
94 //5
69585e7d474f Add initial stab at Z80 decoder and disassembler
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95 {Z80_LD, Z80_D, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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96 {Z80_LD, Z80_D, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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97 {Z80_LD, Z80_D, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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98 {Z80_LD, Z80_D, Z80_REG, Z80_E, 0},
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99 {Z80_LD, Z80_D, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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100 {Z80_LD, Z80_D, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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101 {Z80_LD, Z80_D, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
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102 {Z80_LD, Z80_D, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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103 {Z80_LD, Z80_E, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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104 {Z80_LD, Z80_E, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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105 {Z80_LD, Z80_E, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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106 {Z80_LD, Z80_E, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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107 {Z80_LD, Z80_E, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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108 {Z80_LD, Z80_E, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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109 {Z80_LD, Z80_E, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
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110 {Z80_LD, Z80_E, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
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111 //6
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parents:
diff changeset
112 {Z80_LD, Z80_H, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
113 {Z80_LD, Z80_H, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
114 {Z80_LD, Z80_H, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
115 {Z80_LD, Z80_H, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
116 {Z80_LD, Z80_H, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
117 {Z80_LD, Z80_H, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
118 {Z80_LD, Z80_H, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
119 {Z80_LD, Z80_H, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
120 {Z80_LD, Z80_L, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
121 {Z80_LD, Z80_L, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
122 {Z80_LD, Z80_L, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
123 {Z80_LD, Z80_L, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
124 {Z80_LD, Z80_L, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
125 {Z80_LD, Z80_L, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
126 {Z80_LD, Z80_L, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
127 {Z80_LD, Z80_L, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
128 //7
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
129 {Z80_LD, Z80_B, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
130 {Z80_LD, Z80_C, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
131 {Z80_LD, Z80_D, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
132 {Z80_LD, Z80_E, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
133 {Z80_LD, Z80_H, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
134 {Z80_LD, Z80_L, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
135 {Z80_HALT, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
136 {Z80_LD, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
137 {Z80_LD, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
138 {Z80_LD, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
139 {Z80_LD, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
140 {Z80_LD, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
141 {Z80_LD, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
142 {Z80_LD, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
143 {Z80_LD, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
144 {Z80_LD, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
145 //8
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
146 {Z80_ADD, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
147 {Z80_ADD, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
148 {Z80_ADD, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
149 {Z80_ADD, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
150 {Z80_ADD, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
151 {Z80_ADD, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
152 {Z80_ADD, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
153 {Z80_ADD, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
154 {Z80_ADC, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
155 {Z80_ADC, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
156 {Z80_ADC, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
157 {Z80_ADC, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
158 {Z80_ADC, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
159 {Z80_ADC, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
160 {Z80_ADC, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
161 {Z80_ADC, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
162 //9
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
163 {Z80_SUB, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
164 {Z80_SUB, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
165 {Z80_SUB, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
166 {Z80_SUB, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
167 {Z80_SUB, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
168 {Z80_SUB, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
169 {Z80_SUB, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
170 {Z80_SUB, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
171 {Z80_SBC, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
172 {Z80_SBC, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
173 {Z80_SBC, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
174 {Z80_SBC, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
175 {Z80_SBC, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
176 {Z80_SBC, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
177 {Z80_SBC, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
178 {Z80_SBC, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
179 //A
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
180 {Z80_AND, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
181 {Z80_AND, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
182 {Z80_AND, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
183 {Z80_AND, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
184 {Z80_AND, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
185 {Z80_AND, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
186 {Z80_AND, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
187 {Z80_AND, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
188 {Z80_XOR, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
189 {Z80_XOR, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
190 {Z80_XOR, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
191 {Z80_XOR, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
192 {Z80_XOR, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
193 {Z80_XOR, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
194 {Z80_XOR, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
195 {Z80_XOR, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
196 //B
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
197 {Z80_OR, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
198 {Z80_OR, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
199 {Z80_OR, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
200 {Z80_OR, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
201 {Z80_OR, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
202 {Z80_OR, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
203 {Z80_OR, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
204 {Z80_OR, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
205 {Z80_OR, Z80_CP, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
206 {Z80_OR, Z80_CP, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
207 {Z80_OR, Z80_CP, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
208 {Z80_OR, Z80_CP, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
209 {Z80_OR, Z80_CP, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
210 {Z80_OR, Z80_CP, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
211 {Z80_OR, Z80_CP, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
212 {Z80_OR, Z80_CP, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
213 //C
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
214 {Z80_RETCC, Z80_CC_NZ, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
215 {Z80_POP, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
216 {Z80_JPCC, Z80_CC_NZ, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
217 {Z80_JP, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
218 {Z80_CALLCC, Z80_CC_NZ, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
219 {Z80_PUSH, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
220 {Z80_ADD, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
221 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
222 {Z80_RETCC, Z80_CC_Z, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
223 {Z80_RET, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
224 {Z80_JPCC, Z80_CC_Z, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
225 {0, 0, 0, 0, 0},//BITS Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
226 {Z80_CALLCC, Z80_CC_Z, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
227 {Z80_CALL, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
228 {Z80_ADC, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
229 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x8},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
230 //D
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
231 {Z80_RETCC, Z80_CC_NC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
232 {Z80_POP, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
233 {Z80_JPCC, Z80_CC_NC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
234 {Z80_OUT, Z80_A, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
235 {Z80_CALLCC, Z80_CC_NC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
236 {Z80_PUSH, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
237 {Z80_SUB, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
238 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x10},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
239 {Z80_RETCC, Z80_CC_C, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
240 {Z80_EXX, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
241 {Z80_JPCC, Z80_CC_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
242 {Z80_IN, Z80_A, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
243 {Z80_CALLCC, Z80_CC_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
244 {0, 0, 0, 0, 0},//IX Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
245 {Z80_SBC, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
246 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x18},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
247 //E
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
248 {Z80_RETCC, Z80_CC_PO, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
249 {Z80_POP, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
250 {Z80_JPCC, Z80_CC_PO, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
251 {Z80_EX, Z80_HL, Z80_REG_INDIRECT | Z80_DIR, Z80_SP, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
252 {Z80_CALLCC, Z80_CC_PO, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
253 {Z80_PUSH, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
254 {Z80_AND, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
255 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x20},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
256 {Z80_RETCC, Z80_CC_PE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
257 {Z80_JP, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
258 {Z80_JPCC, Z80_CC_PE, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
259 {Z80_EX, Z80_DE, Z80_REG, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
260 {Z80_CALLCC, Z80_CC_PE, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
261 {0, 0, 0, 0, 0},//EXTD Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
262 {Z80_XOR, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
263 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x28},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
264 //F
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
265 {Z80_RETCC, Z80_CC_P, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
266 {Z80_POP, Z80_AF, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
267 {Z80_JPCC, Z80_CC_P, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
268 {Z80_DI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
269 {Z80_CALLCC, Z80_CC_P, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
270 {Z80_PUSH, Z80_AF, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
271 {Z80_OR, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
272 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x30},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
273 {Z80_RETCC, Z80_CC_M, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
274 {Z80_LD, Z80_SP, Z80_REG, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
275 {Z80_JPCC, Z80_CC_M, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
276 {Z80_EI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
277 {Z80_CALLCC, Z80_CC_M, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
278 {0, 0, 0, 0, 0},//IY Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
279 {Z80_CP, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
280 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x38}
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
281 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
282
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
283 z80inst z80_tbl_extd[0xC0-0x40] = {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
284 //4
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
285 {Z80_IN, Z80_B, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
286 {Z80_OUT, Z80_B, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
287 {Z80_SBC, Z80_HL, Z80_REG, Z80_BC, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
288 {Z80_LD, Z80_BC, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
289 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
290 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
291 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
292 {Z80_LD, Z80_I, Z80_REG, Z80_A, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
293 {Z80_IN, Z80_C, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
294 {Z80_OUT, Z80_C, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
295 {Z80_ADC, Z80_HL, Z80_REG, Z80_BC, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
296 {Z80_LD, Z80_BC, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
297 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
298 {Z80_RETI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
299 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 3},//Set undocumented mode 0/1
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
300 {Z80_LD, Z80_R, Z80_REG, Z80_A, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
301 //5
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
302 {Z80_IN, Z80_D, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
303 {Z80_OUT, Z80_D, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
304 {Z80_SBC, Z80_HL, Z80_REG, Z80_DE, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
305 {Z80_LD, Z80_DE, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
306 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
307 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
308 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 1},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
309 {Z80_LD, Z80_A, Z80_REG, Z80_I, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
310 {Z80_IN, Z80_E, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
311 {Z80_OUT, Z80_E, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
312 {Z80_ADC, Z80_HL, Z80_REG, Z80_DE, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
313 {Z80_LD, Z80_DE, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
314 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
315 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
316 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 2},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
317 {Z80_LD, Z80_A, Z80_REG, Z80_R, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
318 //6
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
319 {Z80_IN, Z80_H, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
320 {Z80_OUT, Z80_H, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
321 {Z80_SBC, Z80_HL, Z80_REG, Z80_HL, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
322 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
323 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
324 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
325 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
326 {Z80_RRD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
327 {Z80_IN, Z80_L, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
328 {Z80_OUT, Z80_L, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
329 {Z80_ADC, Z80_HL, Z80_REG, Z80_HL, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
330 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
331 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
332 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
333 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 3},//Set undocumented mode 0/1
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
334 {Z80_RLD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
335 //7
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
336 {Z80_IN, Z80_UNUSED, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
337 {Z80_OUT, Z80_USE_IMMED, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
338 {Z80_SBC, Z80_HL, Z80_REG, Z80_SP, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
339 {Z80_LD, Z80_SP, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
340 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
341 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
342 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 1},
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
343 NOP2,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
344 {Z80_IN, Z80_A, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
345 {Z80_OUT, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
346 {Z80_ADC, Z80_HL, Z80_REG, Z80_SP, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
347 {Z80_LD, Z80_SP, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
348 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
349 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
350 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 2},
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
351 NOP2,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
352 //8
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
353 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
354 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
355 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
356 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
357 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
358 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
359 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
360 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
361 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
362 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
363 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
364 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
365 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
366 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
367 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
368 NOP2,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
369 //9
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
370 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
371 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
372 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
373 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
374 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
375 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
376 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
377 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
378 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
379 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
380 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
381 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
382 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
383 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
384 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
385 NOP2,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
386 //A
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
387 {Z80_LDI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
388 {Z80_CPI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
389 {Z80_INI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
390 {Z80_OUTI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
391 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
392 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
393 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
394 NOP2,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
395 {Z80_LDD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
396 {Z80_CPD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
397 {Z80_IND, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
398 {Z80_OUTD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
399 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
400 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
401 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
402 NOP2,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
403 //B
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
404 {Z80_LDIR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
405 {Z80_CPIR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
406 {Z80_INIR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
407 {Z80_OTIR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
408 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
409 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
410 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
411 NOP2,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
412 {Z80_LDDR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
413 {Z80_CPDR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
414 {Z80_INDR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
415 {Z80_OTDR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
416 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
417 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
418 NOP2,
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
419 NOP2
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
420 };
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
421
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
422 #define SHIFT_BLOCK(op) \
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
423 {op, Z80_B, Z80_UNUSED, Z80_UNUSED, 0},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
424 {op, Z80_C, Z80_UNUSED, Z80_UNUSED, 0},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
425 {op, Z80_D, Z80_UNUSED, Z80_UNUSED, 0},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
426 {op, Z80_E, Z80_UNUSED, Z80_UNUSED, 0},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
427 {op, Z80_H, Z80_UNUSED, Z80_UNUSED, 0},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
428 {op, Z80_L, Z80_UNUSED, Z80_UNUSED, 0},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
429 {op, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
430 {op, Z80_A, Z80_UNUSED, Z80_UNUSED, 0}
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
431
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
432 #define BIT_BLOCK(op, bit) \
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
433 {op, Z80_USE_IMMED, Z80_REG, Z80_B, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
434 {op, Z80_USE_IMMED, Z80_REG, Z80_C, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
435 {op, Z80_USE_IMMED, Z80_REG, Z80_D, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
436 {op, Z80_USE_IMMED, Z80_REG, Z80_E, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
437 {op, Z80_USE_IMMED, Z80_REG, Z80_H, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
438 {op, Z80_USE_IMMED, Z80_REG, Z80_L, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
439 {op, Z80_USE_IMMED, Z80_REG_INDIRECT, Z80_HL, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
440 {op, Z80_USE_IMMED, Z80_REG, Z80_A, bit}
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
441
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
442 z80inst z80_tbl_bit[256] = {
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
443 //0
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
444 SHIFT_BLOCK(Z80_RLC),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
445 SHIFT_BLOCK(Z80_RRC),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
446 //1
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
447 SHIFT_BLOCK(Z80_RL),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
448 SHIFT_BLOCK(Z80_RR),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
449 //2
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
450 SHIFT_BLOCK(Z80_SLA),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
451 SHIFT_BLOCK(Z80_SRA),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
452 //3
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
453 SHIFT_BLOCK(Z80_SLL),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
454 SHIFT_BLOCK(Z80_SRL),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
455 //4
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
456 BIT_BLOCK(Z80_BIT, 0),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
457 BIT_BLOCK(Z80_BIT, 1),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
458 //5
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
459 BIT_BLOCK(Z80_BIT, 2),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
460 BIT_BLOCK(Z80_BIT, 3),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
461 //6
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
462 BIT_BLOCK(Z80_BIT, 4),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
463 BIT_BLOCK(Z80_BIT, 5),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
464 //7
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
465 BIT_BLOCK(Z80_BIT, 6),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
466 BIT_BLOCK(Z80_BIT, 7),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
467 //8
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
468 BIT_BLOCK(Z80_RES, 0),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
469 BIT_BLOCK(Z80_RES, 1),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
470 //9
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
471 BIT_BLOCK(Z80_RES, 2),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
472 BIT_BLOCK(Z80_RES, 3),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
473 //A
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
474 BIT_BLOCK(Z80_RES, 4),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
475 BIT_BLOCK(Z80_RES, 5),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
476 //B
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
477 BIT_BLOCK(Z80_RES, 6),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
478 BIT_BLOCK(Z80_RES, 7),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
479 //C
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
480 BIT_BLOCK(Z80_SET, 0),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
481 BIT_BLOCK(Z80_SET, 1),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
482 //D
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
483 BIT_BLOCK(Z80_SET, 2),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
484 BIT_BLOCK(Z80_SET, 3),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
485 //E
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
486 BIT_BLOCK(Z80_SET, 4),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
487 BIT_BLOCK(Z80_SET, 5),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
488 //F
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
489 BIT_BLOCK(Z80_SET, 6),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
490 BIT_BLOCK(Z80_SET, 7)
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
491 };
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
492
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
493 z80inst z80_tbl_ix[256] = {
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
494 //0
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
495 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
496 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
497 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
498 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
499 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
500 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
501 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
502 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
503 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
504 {Z80_ADD, Z80_IX, Z80_REG, Z80_BC, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
505 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
506 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
507 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
508 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
509 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
510 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
511 //1
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
512 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
513 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
514 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
515 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
516 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
517 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
518 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
519 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
520 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
521 {Z80_ADD, Z80_IX, Z80_REG, Z80_DE, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
522 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
523 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
524 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
525 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
526 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
527 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
528 //2
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
529 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
530 {Z80_LD, Z80_IX, Z80_IMMED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
531 {Z80_LD, Z80_IX, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
532 {Z80_INC, Z80_IX, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
533 {Z80_INC, Z80_IXH, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
534 {Z80_DEC, Z80_IXH, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
535 {Z80_LD, Z80_IXH, Z80_IMMED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
536 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
537 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
538 {Z80_ADD, Z80_IX, Z80_REG, Z80_IX, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
539 {Z80_LD, Z80_IX, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
540 {Z80_DEC, Z80_IX, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
541 {Z80_INC, Z80_IXL, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
542 {Z80_DEC, Z80_IXL, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
543 {Z80_LD, Z80_IXL, Z80_IMMED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
544 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
545 //3
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
546 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
547 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
548 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
549 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
550 {Z80_INC, Z80_UNUSED, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
551 {Z80_DEC, Z80_UNUSED, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
552 {Z80_LD, Z80_USE_IMMED, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
553 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
554 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
555 {Z80_ADD, Z80_IX, Z80_REG, Z80_SP, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
556 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
557 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
558 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
559 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
560 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
561 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
562 //4
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
563 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
564 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
565 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
566 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
567 {Z80_LD, Z80_B, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
568 {Z80_LD, Z80_B, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
569 {Z80_LD, Z80_B, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
570 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
571 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
572 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
573 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
574 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
575 {Z80_LD, Z80_C, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
576 {Z80_LD, Z80_C, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
577 {Z80_LD, Z80_C, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
578 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
579 //5
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
580 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
581 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
582 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
583 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
584 {Z80_LD, Z80_D, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
585 {Z80_LD, Z80_D, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
586 {Z80_LD, Z80_D, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
587 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
588 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
589 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
590 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
591 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
592 {Z80_LD, Z80_E, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
593 {Z80_LD, Z80_E, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
594 {Z80_LD, Z80_E, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
595 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
596 //6
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
597 {Z80_LD, Z80_IXH, Z80_REG, Z80_B, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
598 {Z80_LD, Z80_IXH, Z80_REG, Z80_C, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
599 {Z80_LD, Z80_IXH, Z80_REG, Z80_D, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
600 {Z80_LD, Z80_IXH, Z80_REG, Z80_E, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
601 {Z80_LD, Z80_IXH, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
602 {Z80_LD, Z80_IXH, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
603 {Z80_LD, Z80_H, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
604 {Z80_LD, Z80_IXH, Z80_REG, Z80_A, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
605 {Z80_LD, Z80_IXL, Z80_REG, Z80_B, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
606 {Z80_LD, Z80_IXL, Z80_REG, Z80_C, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
607 {Z80_LD, Z80_IXL, Z80_REG, Z80_D, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
608 {Z80_LD, Z80_IXL, Z80_REG, Z80_E, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
609 {Z80_LD, Z80_IXL, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
610 {Z80_LD, Z80_IXL, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
611 {Z80_LD, Z80_L, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
612 {Z80_LD, Z80_IXL, Z80_REG, Z80_A, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
613 //7
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
614 {Z80_LD, Z80_B, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
615 {Z80_LD, Z80_C, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
616 {Z80_LD, Z80_D, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
617 {Z80_LD, Z80_E, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
618 {Z80_LD, Z80_H, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
619 {Z80_LD, Z80_L, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
620 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
621 {Z80_LD, Z80_A, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
622 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
623 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
624 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
625 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
626 {Z80_LD, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
627 {Z80_LD, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
628 {Z80_LD, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
629 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
630 //8
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
631 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
632 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
633 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
634 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
635 {Z80_ADD, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
636 {Z80_ADD, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
637 {Z80_ADD, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
638 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
639 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
640 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
641 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
642 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
643 {Z80_ADC, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
644 {Z80_ADC, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
645 {Z80_ADC, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
646 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
647 //9
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
648 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
649 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
650 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
651 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
652 {Z80_SUB, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
653 {Z80_SUB, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
654 {Z80_SUB, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
655 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
656 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
657 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
658 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
659 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
660 {Z80_SBC, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
661 {Z80_SBC, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
662 {Z80_SBC, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
663 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
664 //A
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
665 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
666 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
667 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
668 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
669 {Z80_AND, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
670 {Z80_AND, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
671 {Z80_AND, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
672 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
673 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
674 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
675 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
676 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
677 {Z80_XOR, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
678 {Z80_XOR, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
679 {Z80_XOR, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
680 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
681 //B
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
682 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
683 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
684 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
685 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
686 {Z80_OR, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
687 {Z80_OR, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
688 {Z80_OR, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
689 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
690 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
691 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
692 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
693 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
694 {Z80_CP, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
695 {Z80_CP, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
696 {Z80_CP, Z80_A, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
697 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
698 //C
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
699 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
700 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
701 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
702 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
703 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
704 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
705 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
706 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
707 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
708 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
709 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
710 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
711 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
712 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
713 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
714 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
715 //D
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
716 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
717 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
718 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
719 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
720 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
721 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
722 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
723 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
724 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
725 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
726 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
727 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
728 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
729 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
730 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
731 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
732 //E
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
733 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
734 {Z80_POP, Z80_IX, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
735 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
736 {Z80_EX, Z80_IX, Z80_REG_INDIRECT | Z80_DIR, Z80_SP, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
737 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
738 {Z80_PUSH, Z80_IX, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
739 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
740 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
741 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
742 {Z80_JP, Z80_UNUSED, Z80_REG_INDIRECT, Z80_IX, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
743 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
744 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
745 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
746 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
747 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
748 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
749 //F
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
750 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
751 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
752 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
753 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
754 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
755 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
756 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
757 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
758 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
759 {Z80_LD, Z80_SP, Z80_REG, Z80_IX, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
760 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
761 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
762 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
763 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
764 NOP2,
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
765 NOP2
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
766 };
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
767
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
768 uint8_t * z80_decode(uint8_t * istream, z80inst * decoded)
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
769 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
770 if (*istream == 0xCB) {
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
771 istream++;
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
772 memcpy(decoded, z80_tbl_bit + *istream, sizeof(z80inst));
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
773 } else if (*istream == 0xDD) {
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
774 istream++;
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
775 if (*istream == 0xCB) {
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
776 } else {
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
777 memcpy(decoded, z80_tbl_ix + *istream, sizeof(z80inst));
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
778 }
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
779 } else if (*istream == 0xED) {
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
780 istream++;
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
781 if (*istream < 0x40 || *istream >= 0xC0) {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
782 memcpy(decoded, z80_tbl_extd + 0xBF, sizeof(z80inst));
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
783 } else {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
784 memcpy(decoded, z80_tbl_extd + *istream-0x40, sizeof(z80inst));
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
785 }
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
786 } else if (*istream == 0xFD) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
787 } else {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
788 memcpy(decoded, z80_tbl_a + *istream, sizeof(z80inst));
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
789
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
790 }
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
791 if ((decoded->addr_mode & 0x1F) == Z80_IX_DISPLACE || (decoded->addr_mode & 0x1F) == Z80_IY_DISPLACE) {
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
792 decoded->ea_reg = *(++istream);
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
793 } else if ((decoded->addr_mode & 0x1F) == Z80_IMMED && decoded->op != Z80_RST && decoded->op != Z80_IM) {
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
794 decoded->immed = *(++istream);
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
795 if (decoded->reg >= Z80_BC && decoded->reg < Z80_USE_IMMED) {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
796 decoded->immed |= *(++istream) << 8;
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
797 } else if (decoded->immed & 0x80) {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
798 decoded->immed |= 0xFF00;
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
799 }
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
800 } else if ((decoded->addr_mode & 0x1F) == Z80_IMMED_INDIRECT) {
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
801 decoded->immed = *(++istream);
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
802 if (decoded->op != Z80_OUT && decoded->op != Z80_IN) {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
803 decoded->immed |= *(++istream) << 8;
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
804 }
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
805 }
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
806 if (decoded->reg == Z80_USE_IMMED && decoded->op != Z80_BIT && decoded->op != Z80_RES && decoded->op != Z80_SET) {
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
807 decoded->immed = *(++istream);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
808 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
809 return istream+1;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
810 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
811
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
812 char *z80_mnemonics[Z80_OTDR+1] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
813 "ld",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
814 "push",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
815 "pop",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
816 "ex",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
817 "exx",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
818 "ldi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
819 "ldir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
820 "ldd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
821 "lddr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
822 "cpi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
823 "cpir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
824 "cpd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
825 "cpdr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
826 "add",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
827 "adc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
828 "sub",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
829 "sbc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
830 "and",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
831 "or",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
832 "xor",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
833 "cp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
834 "inc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
835 "dec",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
836 "daa",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
837 "cpl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
838 "neg",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
839 "ccf",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
840 "scf",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
841 "nop",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
842 "halt",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
843 "di",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
844 "ei",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
845 "im",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
846 "rlc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
847 "rl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
848 "rrc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
849 "rr",
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
850 "sla",
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
851 "sra",
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
852 "sll",
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
853 "srl",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
854 "rld",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
855 "rrd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
856 "bit",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
857 "set",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
858 "res",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
859 "jp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
860 "jp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
861 "jr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
862 "jr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
863 "djnz",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
864 "call",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
865 "call",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
866 "ret",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
867 "ret",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
868 "reti",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
869 "retn",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
870 "rst",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
871 "in",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
872 "ini",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
873 "inir",
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
874 "ind",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
875 "indr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
876 "out",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
877 "outi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
878 "otir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
879 "outd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
880 "otdr"
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
881 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
882
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
883 char * z80_regs[Z80_USE_IMMED] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
884 "b",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
885 "c",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
886 "d",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
887 "e",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
888 "h",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
889 "l",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
890 "",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
891 "a",
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
892 "ixh",
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
893 "ixl",
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
894 "i",
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
895 "r",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
896 "bc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
897 "de",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
898 "hl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
899 "sp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
900 "af",
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
901 "ix",
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
902 "iy",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
903 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
904
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
905 char * z80_conditions[Z80_CC_M+1] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
906 "nz",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
907 "z",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
908 "nc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
909 "c",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
910 "po",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
911 "pe",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
912 "p",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
913 "m"
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
914 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
915
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
916 int z80_disasm(z80inst * decoded, char * dst)
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
917 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
918 int len = sprintf(dst, "%s", z80_mnemonics[decoded->op]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
919 if (decoded->addr_mode & Z80_DIR) {
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
920 switch (decoded->addr_mode & 0x1F)
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
921 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
922 case Z80_REG:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
923 len += sprintf(dst+len, " %s", z80_regs[decoded->ea_reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
924 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
925 case Z80_REG_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
926 len += sprintf(dst+len, " (%s)", z80_regs[decoded->ea_reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
927 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
928 case Z80_IMMED:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
929 len += sprintf(dst+len, " %d", decoded->immed);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
930 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
931 case Z80_IMMED_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
932 len += sprintf(dst+len, " (%d)", decoded->immed);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
933 break;
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
934 case Z80_IX_DISPLACE:
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
935 len += sprintf(dst+len, " (ix+%d)", decoded->ea_reg);
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
936 break;
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
937 case Z80_IY_DISPLACE:
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
938 len += sprintf(dst+len, " (iy+%d)", decoded->ea_reg);
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
939 break;
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
940 }
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
941 if (decoded->reg == Z80_USE_IMMED) {
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
942 len += sprintf(dst+len, " %d", decoded->immed);
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
943 } else if (decoded->reg != Z80_UNUSED) {
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
944 if (decoded->op == Z80_JRCC || decoded->op == Z80_JPCC || decoded->op == Z80_CALLCC || decoded->op == Z80_RETCC) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
945 len += sprintf(dst+len, "%s %s", decoded->reg == Z80_UNUSED ? "" : "," , z80_conditions[decoded->reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
946 } else {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
947 len += sprintf(dst+len, "%s %s", decoded->reg == Z80_UNUSED ? "" : "," , z80_regs[decoded->reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
948 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
949 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
950 } else {
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
951 if (decoded->reg == Z80_USE_IMMED) {
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
952 len += sprintf(dst+len, " %d", decoded->immed);
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
953 } else if (decoded->reg != Z80_UNUSED) {
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
954 if (decoded->op == Z80_JRCC || decoded->op == Z80_JPCC || decoded->op == Z80_CALLCC || decoded->op == Z80_RETCC) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
955 len += sprintf(dst+len, " %s", z80_conditions[decoded->reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
956 } else {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
957 len += sprintf(dst+len, " %s", z80_regs[decoded->reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
958 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
959 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
960 switch (decoded->addr_mode)
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
961 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
962 case Z80_REG:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
963 len += sprintf(dst+len, "%s %s", decoded->reg == Z80_UNUSED ? "" : "," , z80_regs[decoded->ea_reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
964 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
965 case Z80_REG_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
966 len += sprintf(dst+len, "%s (%s)", decoded->reg == Z80_UNUSED ? "" : "," , z80_regs[decoded->ea_reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
967 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
968 case Z80_IMMED:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
969 len += sprintf(dst+len, "%s %d", decoded->reg == Z80_UNUSED ? "" : "," , decoded->immed);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
970 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
971 case Z80_IMMED_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
972 len += sprintf(dst+len, "%s (%d)", decoded->reg == Z80_UNUSED ? "" : "," , decoded->immed);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
973 break;
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
974 case Z80_IX_DISPLACE:
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
975 len += sprintf(dst+len, "%s (ix+%d)", decoded->reg == Z80_UNUSED ? "" : "," , decoded->ea_reg);
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
976 break;
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
977 case Z80_IY_DISPLACE:
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
978 len += sprintf(dst+len, "%s (iy+%d)", decoded->reg == Z80_UNUSED ? "" : "," , decoded->ea_reg);
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
979 break;
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
980 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
981 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
982 return len;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
983 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
984