1 %default {"preinstr":""} 2 /* 3 * Generic 32-bit unary operation. Provide an "instr" line that 4 * specifies an instruction that performs "result = op r0". 5 * This could be an ARM 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 mov r3, rINST, lsr #12 @ r3<- B 12 mov r9, rINST, lsr #8 @ r9<- A+ 13 GET_VREG(r0, r3) @ r0<- vB 14 and r9, r9, #15 15 $preinstr @ optional op; may set condition codes 16 FETCH_ADVANCE_INST(1) @ advance rPC, load rINST 17 $instr @ r0<- op, r0-r3 changed 18 GET_INST_OPCODE(ip) @ extract opcode from rINST 19 SET_VREG(r0, r9) @ vAA<- r0 20 GOTO_OPCODE(ip) @ jump to next instruction 21 /* 9-10 instructions */ 22
