Mercurial > repos > blastem
annotate zruntime.S @ 284:ed7098f717d7
Implement IN and OUT (untested)
author | Mike Pavone <pavone@retrodev.com> |
---|---|
date | Sat, 04 May 2013 15:58:15 -0700 |
parents | 44f0bbf57b4f |
children | 021aeb6df19b |
rev | line source |
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284
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
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1 z_inccycles_io: |
ed7098f717d7
Implement IN and OUT (untested)
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2 cmp %edi, %ebp |
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3 jnb do_limit |
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Implement IN and OUT (untested)
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4 no_sync_io: |
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Implement IN and OUT (untested)
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5 add $4, %ebp |
ed7098f717d7
Implement IN and OUT (untested)
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6 ret |
ed7098f717d7
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7 do_limit_io: |
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8 cmp 112(%rsi), %ebp |
ed7098f717d7
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9 jb no_sync_io |
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10 jmp sync_io |
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11 |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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parents:
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12 z_inccycles: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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13 cmp %edi, %ebp |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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14 jnb do_limit |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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parents:
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15 no_sync: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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16 add $3, %ebp |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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17 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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18 do_limit: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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parents:
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19 cmp 112(%rsi), %ebp |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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parents:
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20 jb no_sync |
284
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21 sync_io: |
249
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22 call z80_save_context_scratch |
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Forgot to commit zruntime a while back, adding it now.
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23 pop %rax /*return address in read/write func*/ |
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24 pop 104(%rsi) /*return address in native code*/ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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25 sub $5, %rax /* adjust return addres to point to the call instruction that got us here */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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26 mov %rax, (%rsi) |
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Forgot to commit zruntime a while back, adding it now.
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27 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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28 pop %r15 /* restore callee saved regsiters */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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29 pop %r14 |
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Forgot to commit zruntime a while back, adding it now.
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30 pop %r13 |
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Forgot to commit zruntime a while back, adding it now.
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31 pop %r12 |
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32 pop %rbp |
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Forgot to commit zruntime a while back, adding it now.
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33 pop %rbx |
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Forgot to commit zruntime a while back, adding it now.
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34 ret /* return to caller of z80_run */ |
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Forgot to commit zruntime a while back, adding it now.
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35 |
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Forgot to commit zruntime a while back, adding it now.
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36 .global z80_handle_cycle_limit_int |
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Forgot to commit zruntime a while back, adding it now.
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37 z80_handle_cycle_limit_int: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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38 cmp 116(%rsi), %ebp |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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39 jb zskip_int |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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40 mov 112(%rsi), %ebp /* set cycle limit to sync cycle */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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41 add $7, %ebp |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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42 sub $2, %r9w |
259
d9417261366f
Fix a remaining z80_write reg swap bug. Properly initialize the native map slots. Reset appropriate regs when z80_reset is called.
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43 mov %r9w, %r14w |
249
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44 call z_inccycles |
259
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45 push %r13 |
249
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46 call z80_write_byte_noinc |
259
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Fix a remaining z80_write reg swap bug. Properly initialize the native map slots. Reset appropriate regs when z80_reset is called.
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253
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47 pop %r13 |
d9417261366f
Fix a remaining z80_write reg swap bug. Properly initialize the native map slots. Reset appropriate regs when z80_reset is called.
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parents:
253
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48 mov %r9w, %r14w |
d9417261366f
Fix a remaining z80_write reg swap bug. Properly initialize the native map slots. Reset appropriate regs when z80_reset is called.
Mike Pavone <pavone@retrodev.com>
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253
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49 add $1, %r14w |
d9417261366f
Fix a remaining z80_write reg swap bug. Properly initialize the native map slots. Reset appropriate regs when z80_reset is called.
Mike Pavone <pavone@retrodev.com>
parents:
253
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50 shr $8, %r13w |
249
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51 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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52 call z80_write_byte_noinc |
276
eec7072189a1
Fix crash bug in Z80 interrupt support
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53 pop %r14 /*dispose of return address */ |
249
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54 /* TODO: Support interrupt mode 0 and 2 */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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55 mov $0x38, %r13w |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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56 call z80_native_addr |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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57 jmp *%r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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58 zskip_int: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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59 cmp 112(%rsi), %ebp |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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parents:
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60 jb zskip_sync |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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61 .global z80_do_sync |
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Forgot to commit zruntime a while back, adding it now.
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62 z80_do_sync: |
281
44f0bbf57b4f
Save context in z80_do_sync
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63 call z80_save_context |
249
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64 pop (%rsi) /*return address in native code*/ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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65 pop %r15 /* restore callee saved regsiters */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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66 pop %r14 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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67 pop %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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68 pop %r12 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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69 pop %rbp |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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70 pop %rbx |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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71 zskip_sync: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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72 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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73 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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74 .global z80_read_byte |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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75 z80_read_byte: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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76 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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77 z80_read_byte_noinc: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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78 cmp $0x4000, %r13w |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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79 jb z80_read_ram |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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80 cmp $0x8000, %r13w |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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81 jae z80_read_bank |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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82 /* TODO: Bank reg, YM-2612, PSG/VDP */ |
280 | 83 mov $0xFF, %r13b |
249
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Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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84 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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85 z80_read_ram: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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86 and $0x1FFF, %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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87 mov (%r11, %r13), %r13b |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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88 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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89 z80_read_bank: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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90 and $0x7FFF, %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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91 cmp $0, %r12 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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92 je slow_bank_read |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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93 /* 68K memory is byte swapped */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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94 xor $1, %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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95 mov (%r12, %r13), %r13b |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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96 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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97 slow_bank_read: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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98 /* TODO: Call into C to implement this */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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99 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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100 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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101 .global z80_write_byte |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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102 z80_write_byte: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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parents:
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103 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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104 z80_write_byte_noinc: |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
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105 cmp $0x4000, %r14w |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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106 jb z80_write_ram |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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107 cmp $0x8000, %r14w |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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108 jae z80_write_bank |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
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109 cmp $0x6000, %r14w |
249
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Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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110 je z80_write_bank_reg |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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111 /* TODO: YM-2612, PSG/VDP */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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112 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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113 z80_write_ram: |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
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114 and $0x1FFF, %r14 |
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
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|
115 mov %r13b, (%r11, %r14) |
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
116 mov %r14d, %r13d |
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
117 shr $7, %r13d |
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
118 bt %r13d, 152(%rsi) |
252
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
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|
119 jnc not_code |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
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|
120 call z80_save_context |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
121 mov %r14d, %edi |
252
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
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|
122 call z80_handle_code_write |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
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|
123 mov %rax, %rsi |
261
f0c53a4bbfa3
Implement LDIR and fix a bug in which context was not restored after a call to z80_handle_code_write
Mike Pavone <pavone@retrodev.com>
parents:
259
diff
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|
124 call z80_load_context |
252
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
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|
125 not_code: |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
126 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
127 z80_write_bank: |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
128 and $0x7FFF, %r14 |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
129 cmp $0, %r12 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
130 je slow_bank_write |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
131 /* 68K memory is byte swapped */ |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
132 xor $1, %r14 |
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
133 mov %r13b, (%r12, %r14) |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
134 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
135 slow_bank_write: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
136 /* TODO: Call into C to implement this */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
137 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
138 z80_write_bank_reg: |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
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252
diff
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|
139 and $1, %r13w |
280 | 140 shr %r15w |
141 shl $8, %r13w | |
142 xor %r12, %r12 | |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
143 or %r13w, %r15w |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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144 and $0x1FF, %r15w |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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145 cmp $0x80, %r15w |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
146 jb update_bank_ptr |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
147 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
148 update_bank_ptr: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
149 mov %r15w, %r12w |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
150 shl $15, %r12 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
151 add 80(%rsi), %r12 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
152 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
153 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
154 .global z80_read_word |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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155 z80_read_word: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
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|
156 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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157 push %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
158 call z80_read_byte_noinc |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
159 mov %r13b, %r14b |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
160 pop %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
161 inc %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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162 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
163 call z80_read_byte_noinc |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
164 shl $8, %r13w |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
165 mov %r14b, %r13b |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
166 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
167 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
168 .global z80_write_word_highfirst |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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169 z80_write_word_highfirst: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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170 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
171 push %r14 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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172 push %r13 |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
173 add $1, %r14w |
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
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|
174 shr $8, %r13w |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
175 call z80_write_byte_noinc |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
176 pop %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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177 pop %r14 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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178 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
179 call z80_write_byte_noinc |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
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|
180 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
181 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
182 .global z80_write_word_lowfirst |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
183 z80_write_word_lowfirst: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
184 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
185 push %r14 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
186 push %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
187 call z80_write_byte_noinc |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
188 pop %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
189 pop %r14 |
253
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
changeset
|
190 add $1, %r14w |
3b34deba4ca0
Squashing some bugs introduced when I switched the register assignments for z80_write_byte around.
Mike Pavone <pavone@retrodev.com>
parents:
252
diff
changeset
|
191 shr $8, %r13w |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
192 call z_inccycles |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
193 call z80_write_byte_noinc |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
194 ret |
284
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
195 |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
196 .global z80_io_read |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
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|
197 z80_io_read: |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
198 call z_inccycles_io |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
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|
199 /* genesis Z80 has no IO port hardware and always returns FF */ |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
200 mov $0xFF, %r13 |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
201 ret |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
202 |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
203 .global z80_io_write |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
204 z80_io_write: |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
205 call z_inccycles_io |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
206 /* genesis Z80 has no IO port hardware and writes have no effect */ |
ed7098f717d7
Implement IN and OUT (untested)
Mike Pavone <pavone@retrodev.com>
parents:
281
diff
changeset
|
207 ret |
252
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
208 |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
209 .global z80_retrans_stub |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
210 z80_retrans_stub: |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
211 call z80_save_context |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
212 mov %r13d, %edi |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
213 push %rsi |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
214 call z80_retranslate_inst |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
215 pop %rsi |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
216 mov %rax, %r13 |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
217 call z80_load_context |
63b9a500a00b
Implement retranslating code when written to. Possibly broken, need to fix some other bugs before a proper test.
Mike Pavone <pavone@retrodev.com>
parents:
249
diff
changeset
|
218 jmp *%r13 |
249
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
219 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
220 .global z80_native_addr |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
221 z80_native_addr: |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
222 call z80_save_context |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
223 push %rsi |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
224 mov %rsi, %rdi |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
225 movzx %r13w, %esi |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
226 call z80_get_native_address_trans |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
227 mov %rax, %r13 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
228 pop %rsi |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
229 call z80_load_context |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
230 ret |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
231 |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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232 z80_save_context_scratch: |
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233 mov %r13w, 98(%rsi) /* scratch1 */ |
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234 mov %r14w, 100(%rsi) /* scratch2 */ |
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235 |
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236 .global z80_save_context |
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237 z80_save_context: |
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238 mov %r9w, 8(%rsi) /* SP */ |
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239 mov %r15w, 16(%rsi) /* bank register */ |
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240 mov %bx, 18(%rsi) /* BC */ |
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241 mov %cx, 20(%rsi) /* DE */ |
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242 mov %ax, 22(%rsi) /* HL */ |
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243 mov %dx, 24(%rsi) /* IX */ |
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244 mov %r8w, 26(%rsi) /* IY */ |
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245 mov %r10b, 30(%rsi) /* A */ |
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246 mov %edi, 48(%rsi) /* target_cycle */ |
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247 mov %ebp, 52(%rsi) /* current_cycle */ |
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248 mov %r12, 72(%rsi) /* cartridge bank pointer */ |
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249 ret |
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250 |
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Forgot to commit zruntime a while back, adding it now.
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251 |
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252 z80_load_context_scratch: |
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253 mov 98(%rsi), %r13w /* scratch1 */ |
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254 mov 100(%rsi), %r14w /* scratch2 */ |
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255 |
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256 .global z80_load_context |
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257 z80_load_context: |
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258 mov 8(%rsi), %r9w /* SP */ |
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259 mov 16(%rsi), %r15w /* bank register */ |
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260 mov 18(%rsi), %bx /* BC */ |
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261 mov 20(%rsi), %cx /* DE */ |
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262 mov 22(%rsi), %ax /* HL */ |
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263 mov 24(%rsi), %dx /* IX */ |
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264 mov 26(%rsi), %r8w /* IY */ |
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265 mov 30(%rsi), %r10b /* A */ |
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Forgot to commit zruntime a while back, adding it now.
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266 mov 48(%rsi), %edi /* target_cycle */ |
d94e6cd5a8a5
Forgot to commit zruntime a while back, adding it now.
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267 mov 52(%rsi), %ebp /* current_cycle */ |
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Forgot to commit zruntime a while back, adding it now.
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268 mov 64(%rsi), %r11 /* z80 RAM */ |
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Forgot to commit zruntime a while back, adding it now.
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269 mov 72(%rsi), %r12 /* cartridge bank pointer */ |
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270 ret |
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271 |
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Forgot to commit zruntime a while back, adding it now.
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272 .global z80_run |
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273 z80_run: |
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274 push %rbx |
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275 push %rbp |
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276 push %r12 |
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277 push %r13 |
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278 push %r14 |
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279 push %r15 |
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280 mov %rdi, %rsi |
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281 call z80_load_context_scratch |
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282 cmpq $0, 104(%rsi) |
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283 je no_extra |
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284 push 104(%rsi) |
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285 movq $0, 104(%rsi) |
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286 no_extra: |
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287 jmp *(%rsi) |
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288 |