allwinner_a64/android/art/runtime/interpreter/mterp/arm64/funopNarrower.S
2018-08-08 16:48:17 +08:00

16 lines
740 B
ArmAsm

%default {"srcreg":"s0", "tgtreg":"d0"}
/*
* Generic 64bit-to-32bit floating point unary operation. Provide an
* "instr" line that specifies an instruction that performs "$tgtreg = op $srcreg".
*
* For: int-to-double, float-to-double, float-to-long
*/
/* unop vA, vB */
lsr w3, wINST, #12 // w3<- B
ubfx w4, wINST, #8, #4 // w4<- A
GET_VREG_WIDE $srcreg, w3
FETCH_ADVANCE_INST 1 // advance rPC, load wINST
$instr // d0<- op
GET_INST_OPCODE ip // extract opcode from wINST
SET_VREG $tgtreg, w4 // vA<- d0
GOTO_OPCODE ip // jump to next instruction