1 %default {"preinstr":""} 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: int-to-float, float-to-int 8 */ 9 /* unop vA, vB */ 10 GET_OPB(a3) # a3 <- B 11 GET_OPA4(rOBJ) # t0 <- A+ 12 #ifdef SOFT_FLOAT 13 GET_VREG(a0, a3) # a0 <- vB 14 #else 15 GET_VREG_F(fa0, a3) 16 #endif 17 $preinstr # optional op 18 FETCH_ADVANCE_INST(1) # advance rPC, load rINST 19 #ifdef SOFT_FLOAT 20 $instr # a0 <- op, a0-a3 changed 21 22 .L${opcode}_set_vreg: 23 SET_VREG(v0, rOBJ) # vAA <- result0 24 #else 25 $instr_f 26 27 .L${opcode}_set_vreg_f: 28 SET_VREG_F(fv0, rOBJ) 29 #endif 30 GET_INST_OPCODE(t1) # extract opcode from rINST 31 GOTO_OPCODE(t1) # jump to next instruction 32 /* 9-10 instructions */ 33
