Mercurial > repos > blastem
view runtime_32.S @ 572:0f32f52fc98e
Make some small changes in trans so that it is more likely to produce the same output as mustrans when given misbehaving programs. Add lea to testcases.txt. Improve the output of comparetest.py so that known issues can easily be separated from new ones.
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 03 Mar 2014 21:08:43 -0800 |
parents | 96489fb27dbf |
children | 5a6ff0d76032 |
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invalid_msg: .asciz "Invalid instruction at %X\n" .global m68k_invalid m68k_invalid: push %ecx push invalid_msg xor %eax, %eax call printf push $1 call exit .global bcd_add bcd_add: xchg %eax, %edi mov %cl, %ch mov %al, %ah and $0xF, %ch and $0xF, %ah and $0xF0, %cl and $0xF0, %al add %ah, %ch cmp $10, %ch jb no_adjust add $6, %ch no_adjust: add %ch, %al add %al, %cl mov $0, %ch jc def_adjust cmp $0xA0, %cl jb no_adjust_h def_adjust: add $0x60, %cl mov $1, %ch no_adjust_h: mov %edi, %eax ret .global bcd_sub bcd_sub: xchg %eax, %edi mov %cl, %ch mov %al, %ah and $0xF, %ch and $0xF, %ah and $0xF0, %cl and $0xF0, %al sub %ah, %ch cmp $10, %ch jb no_adjusts sub $6, %ch no_adjusts: add %ch, %cl sub %al, %cl mov $0, %ch jc def_adjusts cmp $0xA0, %cl jb no_adjust_hs def_adjusts: sub $0x60, %cl mov $1, %ch no_adjust_hs: mov %edi, %eax ret