1 %default {"preinstr":""} 2 /* 3 * Generic 64-bit unary operation. Provide an "instr" line that 4 * specifies an instruction that performs "result = op r0/r1". 5 * This could be an ARM instruction or a function call. 6 * 7 * For: neg-long, not-long, neg-double, long-to-double, double-to-long 8 */ 9 /* unop vA, vB */ 10 mov r3, rINST, lsr #12 @ r3<- B 11 ubfx rINST, rINST, #8, #4 @ rINST<- A 12 VREG_INDEX_TO_ADDR r3, r3 @ r3<- &fp[B] 13 VREG_INDEX_TO_ADDR r9, rINST @ r9<- &fp[A] 14 ldmia r3, {r0-r1} @ r0/r1<- vAA 15 CLEAR_SHADOW_PAIR rINST, ip, lr @ Zero shadow regs 16 FETCH_ADVANCE_INST 1 @ advance rPC, load rINST 17 $preinstr @ optional op; may set condition codes 18 $instr @ r0/r1<- op, r2-r3 changed 19 GET_INST_OPCODE ip @ extract opcode from rINST 20 stmia r9, {r0-r1} @ vAA<- r0/r1 21 GOTO_OPCODE ip @ jump to next instruction 22 /* 10-11 instructions */ 23
