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

17 lines
778 B
ArmAsm

/*
* Generic 32-bit unary floating-point operation. Provide an "instr"
* line that specifies an instruction that performs "s1 = op s0".
*
* for: int-to-float, float-to-int
*/
/* unop vA, vB */
mov r3, rINST, lsr #12 @ r3<- B
VREG_INDEX_TO_ADDR r3, r3 @ r3<- &vB
flds s0, [r3] @ s0<- vB
ubfx r9, rINST, #8, #4 @ r9<- A
FETCH_ADVANCE_INST 1 @ advance rPC, load rINST
$instr @ s1<- op
GET_INST_OPCODE ip @ extract opcode from rINST
VREG_INDEX_TO_ADDR r9, r9 @ r9<- &vA
fsts s1, [r9] @ vA<- s1
GOTO_OPCODE ip @ jump to next instruction