21 lines
975 B
ArmAsm
21 lines
975 B
ArmAsm
/*
|
|
* Generic 64-bit floating point "/2addr" binary operation. Provide
|
|
* an "instr" line that specifies an instruction that performs
|
|
* "d2 = d0 op d1".
|
|
*
|
|
* For: add-double/2addr, sub-double/2addr, mul-double/2addr,
|
|
* div-double/2addr
|
|
*/
|
|
/* binop/2addr vA, vB */
|
|
mov r3, rINST, lsr #12 @ r3<- B
|
|
ubfx r9, rINST, #8, #4 @ r9<- A
|
|
VREG_INDEX_TO_ADDR r3, r3 @ r3<- &vB
|
|
CLEAR_SHADOW_PAIR r9, ip, r0 @ Zero out shadow regs
|
|
fldd d1, [r3] @ d1<- vB
|
|
VREG_INDEX_TO_ADDR r9, r9 @ r9<- &vA
|
|
FETCH_ADVANCE_INST 1 @ advance rPC, load rINST
|
|
fldd d0, [r9] @ d0<- vA
|
|
$instr @ d2<- op
|
|
GET_INST_OPCODE ip @ extract opcode from rINST
|
|
fstd d2, [r9] @ vAA<- d2
|
|
GOTO_OPCODE ip @ jump to next instruction
|