1 %default {"preinstr":""} 2 /* 3 * Generic 32-bit unary operation. Provide an "instr" line that 4 * specifies an instruction that performs "a0 = op a0". 5 * 6 * for: int-to-byte, int-to-char, int-to-short, 7 * not-int, neg-int 8 */ 9 /* unop vA, vB */ 10 ext a3, rINST, 12, 4 # a3 <- B 11 GET_VREG a0, a3 # a0 <- vB 12 ext a2, rINST, 8, 4 # a2 <- A 13 $preinstr # optional op 14 FETCH_ADVANCE_INST 1 # advance rPC, load rINST 15 $instr # a0 <- op, a0-a3 changed 16 GET_INST_OPCODE v0 # extract opcode from rINST 17 SET_VREG a0, a2 # vA <- a0 18 GOTO_OPCODE v0 # jump to next instruction 19
