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x86: Zero upper bits of ECX for LOOP instructions

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Sleigh-InSPECtor 2024-05-30 16:25:34 +09:30
parent 571480941b
commit 7d01e629db
1 changed files with 6 additions and 6 deletions
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12
Ghidra/Processors/x86/data/languages/ia.sinc
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@ -3004,20 +3004,20 @@ define pcodeop LocalDescriptorTableRegister;
:LODSQ^rep^reptail dseSI8 is $(LONGMODE_ON) & vexMode=0 & rep & reptail & opsize=2 & byte=0xAD & dseSI8 { build rep; build dseSI8; RAX=dseSI8; build reptail; }
@endif
:LOOP rel8 is vexMode=0 & addrsize=0 & byte=0xE2; rel8 { CX = CX -1; if (CX!=0) goto rel8; }
:LOOP rel8 is vexMode=0 & addrsize=1 & byte=0xE2; rel8 { ECX = ECX -1; if (ECX!=0) goto rel8; }
:LOOP rel8 is vexMode=0 & addrsize=0 & byte=0xE2; rel8 { CX = CX -1; if (CX!=0) goto rel8; }
:LOOP rel8 is vexMode=0 & addrsize=1 & byte=0xE2; rel8 & check_ECX_dest { ECX = ECX -1; build check_ECX_dest; if (ECX!=0) goto rel8; }
@ifdef IA64
:LOOP rel8 is $(LONGMODE_ON) & vexMode=0 & addrsize=2 & byte=0xE2; rel8 { RCX = RCX -1; if (RCX!=0) goto rel8; }
@endif
:LOOPZ rel8 is vexMode=0 & addrsize=0 & byte=0xE1; rel8 { CX = CX -1; if (CX!=0 && ZF!=0) goto rel8; }
:LOOPZ rel8 is vexMode=0 & addrsize=1 & byte=0xE1; rel8 { ECX = ECX -1; if (ECX!=0 && ZF!=0) goto rel8; }
:LOOPZ rel8 is vexMode=0 & addrsize=0 & byte=0xE1; rel8 { CX = CX -1; if (CX!=0 && ZF!=0) goto rel8; }
:LOOPZ rel8 is vexMode=0 & addrsize=1 & byte=0xE1; rel8 & check_ECX_dest { ECX = ECX -1; build check_ECX_dest; if (ECX!=0 && ZF!=0) goto rel8; }
@ifdef IA64
:LOOPZ rel8 is $(LONGMODE_ON) & vexMode=0 & addrsize=2 & byte=0xE1; rel8 { RCX = RCX -1; if (RCX!=0 && ZF!=0) goto rel8; }
@endif
:LOOPNZ rel8 is vexMode=0 & addrsize=0 & byte=0xE0; rel8 { CX = CX -1; if (CX!=0 && ZF==0) goto rel8; }
:LOOPNZ rel8 is vexMode=0 & addrsize=1 & byte=0xE0; rel8 { ECX = ECX -1; if (ECX!=0 && ZF==0) goto rel8; }
:LOOPNZ rel8 is vexMode=0 & addrsize=0 & byte=0xE0; rel8 { CX = CX -1; if (CX!=0 && ZF==0) goto rel8; }
:LOOPNZ rel8 is vexMode=0 & addrsize=1 & byte=0xE0; rel8 & check_ECX_dest { ECX = ECX -1; build check_ECX_dest; if (ECX!=0 && ZF==0) goto rel8; }
@ifdef IA64
:LOOPNZ rel8 is $(LONGMODE_ON) & vexMode=0 & addrsize=2 & byte=0xE0; rel8 { RCX = RCX -1; if (RCX!=0 && ZF==0) goto rel8; }
@endif