1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
.include "global.inc"
.include "asm/macros.inc"
.text
arm_func_start __msl_generic_count_bits64
__msl_generic_count_bits64: ; 0x020E998C
mov r3, r0, lsr #0x1
ldr r2, _020E9A14 ; =0x55555555
orr r3, r3, r1, lsl #0x1f
and r3, r3, r2
subs r12, r0, r3
and r2, r2, r1, lsr #0x1
ldr r0, _020E9A18 ; =0x33333333
sbc r3, r1, r2
mov r1, r12, lsr #0x2
orr r1, r1, r3, lsl #0x1e
and r2, r12, r0
and r1, r1, r0
adds r2, r2, r1
and r1, r3, r0
and r0, r0, r3, lsr #0x2
adc r1, r1, r0
mov r0, r2, lsr #0x4
orr r0, r0, r1, lsl #0x1c
adds r2, r2, r0
ldr r0, _020E9A1C ; =0x0F0F0F0F
adc r1, r1, r1, lsr #0x4
and r3, r2, r0
and r2, r1, r0
mov r0, r3, lsr #0x8
orr r0, r0, r2, lsl #0x18
adds r1, r3, r0
adc r2, r2, r2, lsr #0x8
mov r0, r1, lsr #0x10
orr r0, r0, r2, lsl #0x10
adds r1, r1, r0
adc r0, r2, r2, lsr #0x10
adds r0, r1, r0
and r0, r0, #0xff
bx lr
.balign 4
_020E9A14: .word 0x55555555
_020E9A18: .word 0x33333333
_020E9A1C: .word 0x0F0F0F0F
arm_func_end __msl_generic_count_bits64
arm_func_start __signbitf
__signbitf:
stmdb sp!, {r0-r3}
ldr r0, [sp, #0x4]
and r0, r0, #0x80000000
add sp, sp, #0x10
bx lr
arm_func_end __signbitf
arm_func_start __fpclassifyf
__fpclassifyf: ; 0x020E9A34
stmdb sp!, {r0-r3}
ldr r2, [sp, #0x4]
ldr r0, _020E9A9C ; =0x7FF00000
ands r1, r2, r0
beq _020E9A70
cmp r1, r0
bne _020E9A90
ldr r0, _020E9AA0 ; =0x000FFFFF
tst r2, r0
ldreq r0, [sp, #0x0]
add sp, sp, #0x10
cmpeq r0, #0x0
movne r0, #0x1
moveq r0, #0x2
bx lr
_020E9A70:
ldr r0, _020E9AA0 ; =0x000FFFFF
tst r2, r0
ldreq r0, [sp, #0x0]
add sp, sp, #0x10
cmpeq r0, #0x0
movne r0, #0x5
moveq r0, #0x3
bx lr
_020E9A90:
mov r0, #0x4
add sp, sp, #0x10
bx lr
.balign 4
_020E9A9C: .word 0x7FF00000
_020E9AA0: .word 0x000FFFFF
arm_func_end __fpclassifyf
arm_func_start scalbn
scalbn: ; 0x020E9AA4
stmdb sp!, {r3-r4,lr}
sub sp, sp, #0x4
mov r4, r2
add r2, sp, #0x0
bl frexp
ldr r2, [sp, #0x0]
add r2, r2, r4
str r2, [sp, #0x0]
bl ldexp
add sp, sp, #0x4
ldmia sp!, {r3-r4,pc}
arm_func_end scalbn
exception scalbn, 45, 0x00200100
|
