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