1 %default {"preinstr":"", "result0":"a0"} 2 /* 3 * Generic 32-bit unary operation. Provide an "instr" line that 4 * specifies an instruction that performs "result = op a0". 5 * This could be a MIPS instruction or a function call. 6 * 7 * for: neg-int, not-int, neg-float, int-to-float, float-to-int, 8 * int-to-byte, int-to-char, int-to-short 9 */ 10 /* unop vA, vB */ 11 GET_OPB(a3) # a3 <- B 12 GET_OPA4(t0) # t0 <- A+ 13 GET_VREG(a0, a3) # a0 <- vB 14 FETCH_ADVANCE_INST(1) # advance rPC, load rINST 15 $preinstr # optional op 16 $instr # a0 <- op, a0-a3 changed 17 GET_INST_OPCODE(t1) # extract opcode from rINST 18 SET_VREG_GOTO($result0, t0, t1) # vAA <- result0 19 /* 9-10 instructions */ 20
