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.include "asm/macros.inc"
.include "global.inc"
.text
arm_func_start _dsqrt
_dsqrt: ; 0x020EA418
stmdb sp!, {r4-r6,lr}
ldr r2, _020EA5A8 ; =0x7FF00000
cmp r1, r2
bhs _020EA564
movs r12, r1, lsr #0x14
beq _020EA510
bic r1, r1, r2
orr r1, r1, #0x100000
_020EA438:
movs r12, r12, asr #0x1
bhs _020EA44C
sub r12, r12, #0x1
movs r0, r0, lsl #0x1
adc r1, r1, r1
_020EA44C:
movs r3, r0, lsl #0x1
adc r1, r1, r1
mov r2, #0x0
mov r4, #0x0
mov lr, #0x200000
_020EA460:
add r6, r4, lr
cmp r6, r1
addle r4, r6, lr
suble r1, r1, r6
addle r2, r2, lr
movs r3, r3, lsl #0x1
adc r1, r1, r1
movs lr, lr, lsr #0x1
bne _020EA460
mov r0, #0x0
mov r5, #0x0
cmp r1, r4
cmpeq r3, #0x80000000
blo _020EA4A8
subs r3, r3, #0x80000000
sbc r1, r1, r4
add r4, r4, #0x1
mov r0, #0x80000000
_020EA4A8:
movs r3, r3, lsl #0x1
adc r1, r1, r1
mov lr, #0x40000000
_020EA4B4:
add r6, r5, lr
cmp r4, r1
cmpeq r6, r3
bhi _020EA4D4
add r5, r6, lr
subs r3, r3, r6
sbc r1, r1, r4
add r0, r0, lr
_020EA4D4:
movs r3, r3, lsl #0x1
adc r1, r1, r1
movs lr, lr, lsr #0x1
bne _020EA4B4
orrs r1, r1, r3
biceq r0, r0, #0x1
movs r1, r2, lsr #0x1
movs r0, r0, rrx
adcs r0, r0, #0x0
adc r1, r1, #0x0
add r1, r1, #0x20000000
sub r1, r1, #0x100000
add r1, r1, r12, lsl #0x14
ldmia sp!, {r4-r6,lr}
bx lr
_020EA510:
cmp r1, #0x0
bne _020EA540
cmp r0, #0x0
ldmeqia sp!, {r4-r6,lr}
bxeq lr
mvn r12, #0x13
clz r5, r0
movs r0, r0, lsl r5
sub r12, r12, r5
mov r1, r0, lsr #0xb
mov r0, r0, lsl #0x15
b _020EA438
_020EA540:
clz r2, r1
movs r1, r1, lsl r2
rsb r2, r2, #0x2b
mov r1, r1, lsr #0xb
orr r1, r1, r0, lsr r2
rsb r2, r2, #0x20
mov r0, r0, lsl r2
rsb r12, r2, #0x1
b _020EA438
_020EA564:
tst r1, #0x80000000
beq _020EA580
bics r3, r1, #0x80000000
cmpeq r0, #0x0
ldmeqia sp!, {r4-r6,lr}
bxeq lr
b _020EA58C
_020EA580:
orrs r2, r0, r1, lsl #0xc
ldmeqia sp!, {r4-r6,lr}
bxeq lr
_020EA58C:
ldr r2, _020EA5AC ; =0x7FF80000
orr r1, r1, r2
ldr r3, _020EA5B0 ; =errno
mov r4, #0x21
str r4, [r3, #0x0]
ldmia sp!, {r4-r6,lr}
bx lr
.balign 4
_020EA5A8: .word 0x7FF00000
_020EA5AC: .word 0x7FF80000
_020EA5B0: .word errno
arm_func_end _dsqrt
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