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Very basic REP+MOVS support #104

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Very basic REP+MOVS support #104

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72 changes: 72 additions & 0 deletions build/zinstructions.go
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35 changes: 35 additions & 0 deletions internal/data/x86_64.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -11298,6 +11298,41 @@
<Opcode byte="90"/>
</Encoding>
</InstructionForm>
</Instruction>
<Instruction name="REP" summary="Repeat">
<InstructionForm gas-name="rep" go-name="REP" nacl-version="33">
<Encoding>
<Opcode byte="F3"/>
</Encoding>
</InstructionForm>
</Instruction>
<Instruction name="REPE" summary="Repeat">
<InstructionForm gas-name="repe" go-name="REPE" nacl-version="33">
<Encoding>
<Opcode byte="F3"/>
</Encoding>
</InstructionForm>
</Instruction>
<Instruction name="REPNE" summary="Repeat">
<InstructionForm gas-name="repne" go-name="REPNE" nacl-version="33">
<Encoding>
<Opcode byte="F2"/>
</Encoding>
</InstructionForm>
</Instruction>
<Instruction name="MOVSB" summary="Move byte at address at SI to DI">
<InstructionForm gas-name="movsb" go-name="MOVSB" nacl-version="33">
<Encoding>
<Opcode byte="A4"/>
</Encoding>
</InstructionForm>
</Instruction>
<Instruction name="MOVSW" summary="Move word at address at SI to DI">
<InstructionForm gas-name="movsw" go-name="MOVSW" nacl-version="33">
<Encoding>
<Opcode byte="A5"/>
</Encoding>
</InstructionForm>
</Instruction>
<Instruction name="NOT" summary="One's Complement Negation">
<InstructionForm gas-name="notb" go-name="NOTB" nacl-version="33">
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45 changes: 45 additions & 0 deletions internal/inst/ztable.go
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2 changes: 1 addition & 1 deletion internal/inst/ztable_test.go
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15 changes: 15 additions & 0 deletions operand/checks.go
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Original file line number Diff line number Diff line change
Expand Up @@ -82,6 +82,21 @@ func IsRAX(op Op) bool {
return op == reg.RAX
}

// IsRCX returns true if op is the 64-bit RCX register.
func IsRCX(op Op) bool {
return op == reg.RCX
}

// IsRSI returns true if op is the 64-bit RSI register.
func IsRSI(op Op) bool {
return op == reg.RSI
}

// IsRDI returns true if op is the 64-bit RDI register.
func IsRDI(op Op) bool {
return op == reg.RDI
}

// IsR8 returns true if op is an 8-bit general-purpose register.
func IsR8(op Op) bool {
return IsGP(op, 1)
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81 changes: 81 additions & 0 deletions x86/zctors.go
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