18 lines
795 B
ArmAsm
18 lines
795 B
ArmAsm
%default {"result":"%eax"}
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/*
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* Generic 32-bit "lit8" binary operation. Provide an "instr" line
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* that specifies an instruction that performs "result = eax op ecx".
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* This could be an x86 instruction or a function call. (If the result
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* comes back in a register other than r0, you can override "result".)
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*
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* For: add-int/lit8, rsub-int/lit8
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* and-int/lit8, or-int/lit8, xor-int/lit8,
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* shl-int/lit8, shr-int/lit8, ushr-int/lit8
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*/
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/* binop/lit8 vAA, vBB, #+CC */
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movzbq 2(rPC), %rax # rax <- BB
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movsbl 3(rPC), %ecx # rcx <- ssssssCC
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GET_VREG %eax, %rax # eax <- rBB
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$instr # ex: addl %ecx,%eax
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SET_VREG $result, rINSTq
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ADVANCE_PC_FETCH_AND_GOTO_NEXT 2
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