1 %default {"result":"%eax"} 2 /* 3 * Generic 32-bit "lit8" binary operation. Provide an "instr" line 4 * that specifies an instruction that performs "result = eax op ecx". 5 * This could be an x86 instruction or a function call. (If the result 6 * comes back in a register other than r0, you can override "result".) 7 * 8 * For: add-int/lit8, rsub-int/lit8 9 * and-int/lit8, or-int/lit8, xor-int/lit8, 10 * shl-int/lit8, shr-int/lit8, ushr-int/lit8 11 */ 12 /* binop/lit8 vAA, vBB, #+CC */ 13 movzbl 2(rPC),%eax # eax<- BB 14 movsbl 3(rPC),%ecx # ecx<- ssssssCC 15 GET_VREG_R %eax %eax # eax<- rBB 16 $instr # ex: addl %ecx,%eax 17 SET_VREG $result rINST 18 FETCH_INST_OPCODE 2 %ecx 19 ADVANCE_PC 2 20 GOTO_NEXT_R %ecx 21
