63 lines
1.7 KiB
PHP
63 lines
1.7 KiB
PHP
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include 'p5.inc'
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iterate <instr,opcode>, sysenter,<0Fh,34h>, sysexit,<0Fh,35h>
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calminstruction instr?
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asm db opcode
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end calminstruction
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end iterate
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iterate <cond,code>, o,0, no,1, c,2, b,2, nae,2, nc,3, nb,3, ae,3, z,4, e,4, nz,5, ne,5, na,6, be,6, a,7, nbe,7, \
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s,8, ns,9, p,0Ah, pe,0Ah, np,0Bh, po,0Bh, l,0Ch, nge,0Ch, nl,0Dh, ge,0Dh, ng,0Eh, le,0Eh, g,0Fh, nle,0Fh
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calminstruction cmov#cond? dest*,src*
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call x86.parse_operand@dest, dest
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call x86.parse_operand@src, src
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check @dest.type = 'reg' & (@src.type = 'mem' | @src.type = 'reg')
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jyes cmov_rm_reg
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err 'invalid combination of operands'
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exit
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cmov_rm_reg:
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check @src.size and not @dest.size
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jno cmov_rm_reg_ok
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err 'operand sizes do not match'
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cmov_rm_reg_ok:
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call x86.select_operand_prefix@src, @dest.size
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xcall x86.store_instruction@src, <0Fh,40h+code>,@dest.rm
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end calminstruction
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end iterate
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iterate <instr,opcode>, fcmovb,<0DAh,0C0h>, fcmove,<0DAh,0C8h>, fcmovbe,<0DAh,0D0h>, fcmovu,<0DAh,0D8h>, \
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fcmovnb,<0DBh,0C0h>, fcmovne,<0DBh,0C8h>, fcmovnbe,<0DBh,0D0h>, fcmovnu,<0DBh,0D8h>
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calminstruction instr? dest*,src*
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call x87.parse_operand@dest, dest
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call x87.parse_operand@src, src
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check @dest.type = 'streg' & @dest.rm = 0 & @src.type = 'streg'
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jyes ok
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err 'invalid operand'
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exit
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ok:
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asm db opcode + @src.rm
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end calminstruction
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end iterate
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iterate <instr,opcode,postbyte>, fucomi,0DBh,5, fucomip,0DFh,5, fcomi,0DBh,6, fcomip,0DFh,6
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calminstruction instr? src:st1
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call x87.parse_operand@src, src
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check @src.type = 'streg'
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jyes ok
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err 'invalid operand'
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exit
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ok:
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emit 1, opcode
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emit 1, 11b shl 6 + postbyte shl 3 + @src.rm
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end calminstruction
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end iterate
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