Mercurial > repos > blastem
annotate z80_to_x86.h @ 922:913a6336ce20
Shift slot number to slot behavior mapping by six slots in H40 mode. This makes the line change slot align with the point at which the display turns on and off at the end of the active display area. Also fixed a regression in which an external slot got accidentally changed into a sprite draw slot
author | Michael Pavone <pavone@retrodev.com> |
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date | Thu, 28 Jan 2016 09:10:14 -0800 |
parents | 252dfd29831d |
children | 1eb616b8cbe9 |
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1 /* |
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2 Copyright 2013 Michael Pavone |
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3 This file is part of BlastEm. |
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. |
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5 */ |
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6 #ifndef Z80_TO_X86_H_ |
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7 #define Z80_TO_X86_H_ |
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8 #include "z80inst.h" |
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9 #include "backend.h" |
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10 |
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11 #define ZNUM_MEM_AREAS 4 |
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12 #ifdef Z80_LOG_ADDRESS |
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13 #define ZMAX_NATIVE_SIZE 255 |
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14 #else |
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15 #define ZMAX_NATIVE_SIZE 128 |
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16 #endif |
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17 |
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18 enum { |
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19 ZF_C = 0, |
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20 ZF_N, |
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21 ZF_PV, |
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22 ZF_H, |
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23 ZF_Z, |
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24 ZF_S, |
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25 ZF_NUM |
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26 }; |
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27 |
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28 typedef void (*z80_run_fun)(void * context); |
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29 |
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30 typedef struct { |
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31 cpu_options gen; |
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32 code_ptr save_context_scratch; |
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33 code_ptr load_context_scratch; |
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34 code_ptr native_addr; |
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35 code_ptr retrans_stub; |
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36 code_ptr do_sync; |
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37 code_ptr read_8; |
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38 code_ptr write_8; |
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39 code_ptr read_8_noinc; |
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40 code_ptr write_8_noinc; |
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41 code_ptr read_16; |
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42 code_ptr write_16_highfirst; |
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43 code_ptr write_16_lowfirst; |
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44 code_ptr read_io; |
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45 code_ptr write_io; |
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46 |
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47 uint32_t flags; |
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48 int8_t regs[Z80_UNUSED]; |
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49 z80_run_fun run; |
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50 } z80_options; |
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51 |
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52 typedef struct { |
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53 void * native_pc; |
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54 uint16_t sp; |
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55 uint8_t flags[ZF_NUM]; |
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56 uint16_t bank_reg; |
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57 uint8_t regs[Z80_A+1]; |
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58 uint8_t im; |
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59 uint8_t alt_regs[Z80_A+1]; |
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60 uint32_t target_cycle; |
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61 uint32_t current_cycle; |
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62 uint8_t alt_flags[ZF_NUM]; |
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63 uint8_t * mem_pointers[ZNUM_MEM_AREAS]; |
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64 uint8_t iff1; |
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65 uint8_t iff2; |
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66 uint16_t scratch1; |
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67 uint16_t scratch2; |
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68 void * extra_pc; |
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69 uint32_t sync_cycle; |
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70 uint32_t int_cycle; |
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71 native_map_slot * static_code_map; |
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72 native_map_slot * banked_code_map; |
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73 z80_options * options; |
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74 void * system; |
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75 uint8_t ram_code_flags[(8 * 1024)/128/8]; |
335 | 76 uint32_t int_enable_cycle; |
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77 uint16_t pc; |
628 | 78 uint32_t int_pulse_start; |
79 uint32_t int_pulse_end; | |
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80 uint8_t breakpoint_flags[(16 * 1024)/sizeof(uint8_t)]; |
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81 uint8_t * bp_handler; |
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82 uint8_t * bp_stub; |
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83 uint8_t * interp_code[256]; |
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84 uint8_t reset; |
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85 uint8_t busreq; |
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86 uint8_t busack; |
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87 } z80_context; |
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88 |
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89 void translate_z80_stream(z80_context * context, uint32_t address); |
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90 void init_z80_opts(z80_options * options, memmap_chunk const * chunks, uint32_t num_chunks, memmap_chunk const * io_chunks, uint32_t num_io_chunks, uint32_t clock_divider); |
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91 void z80_options_free(z80_options *opts); |
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92 void init_z80_context(z80_context * context, z80_options * options); |
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93 code_ptr z80_get_native_address(z80_context * context, uint32_t address); |
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94 code_ptr z80_get_native_address_trans(z80_context * context, uint32_t address); |
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95 z80_context * z80_handle_code_write(uint32_t address, z80_context * context); |
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96 void z80_reset(z80_context * context); |
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97 void zinsert_breakpoint(z80_context * context, uint16_t address, uint8_t * bp_handler); |
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98 void zremove_breakpoint(z80_context * context, uint16_t address); |
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99 void z80_run(z80_context * context, uint32_t target_cycle); |
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100 void z80_assert_reset(z80_context * context, uint32_t cycle); |
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101 void z80_clear_reset(z80_context * context, uint32_t cycle); |
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102 void z80_assert_busreq(z80_context * context, uint32_t cycle); |
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103 void z80_clear_busreq(z80_context * context, uint32_t cycle); |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
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104 uint8_t z80_get_busack(z80_context * context, uint32_t cycle); |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
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105 void z80_adjust_cycles(z80_context * context, uint32_t deduction); |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
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106 //to be provided by system code |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
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107 void z80_next_int_pulse(z80_context * z_context); |
213
4d4559b04c59
Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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108 |
4d4559b04c59
Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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109 #endif //Z80_TO_X86_H_ |
4d4559b04c59
Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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110 |