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memcpy-lasx.S
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/*
============================================================================
Name : memcpy-lasx.S
Author : hev <[email protected]>
Copyright : Copyright (c) 2023 hev
Description : Memcpy LASX
============================================================================
*/
#include "regdef.h"
#include "lasx.h"
.text
.align 5
.global __memcpy_small
__memcpy_small:
pcaddi t0, 8
slli.d a2, a2, 5
add.d t0, t0, a2
jr t0
.align 5
0: jr ra
.align 5
1: ld.b t0, a1, 0
st.b t0, a0, 0
jr ra
.align 5
2: ld.h t0, a1, 0
st.h t0, a0, 0
jr ra
.align 5
3: ld.h t0, a1, 0
ld.b t1, a1, 2
st.h t0, a0, 0
st.b t1, a0, 2
jr ra
.align 5
4: ld.w t0, a1, 0
st.w t0, a0, 0
jr ra
.align 5
5: ld.w t0, a1, 0
ld.b t1, a1, 4
st.w t0, a0, 0
st.b t1, a0, 4
jr ra
.align 5
6: ld.w t0, a1, 0
ld.h t1, a1, 4
st.w t0, a0, 0
st.h t1, a0, 4
jr ra
.align 5
7: ld.w t0, a1, 0
ld.w t1, a1, 3
st.w t0, a0, 0
st.w t1, a0, 3
jr ra
.align 5
8: ld.d t0, a1, 0
st.d t0, a0, 0
jr ra
.align 5
9: ld.d t0, a1, 0
ld.b t1, a1, 8
st.d t0, a0, 0
st.b t1, a0, 8
jr ra
.align 5
10: ld.d t0, a1, 0
ld.h t1, a1, 8
st.d t0, a0, 0
st.h t1, a0, 8
jr ra
.align 5
11: ld.d t0, a1, 0
ld.w t1, a1, 7
st.d t0, a0, 0
st.w t1, a0, 7
jr ra
.align 5
12: ld.d t0, a1, 0
ld.w t1, a1, 8
st.d t0, a0, 0
st.w t1, a0, 8
jr ra
.align 5
13: ld.d t0, a1, 0
ld.d t1, a1, 5
st.d t0, a0, 0
st.d t1, a0, 5
jr ra
.align 5
14: ld.d t0, a1, 0
ld.d t1, a1, 6
st.d t0, a0, 0
st.d t1, a0, 6
jr ra
.align 5
15: ld.d t0, a1, 0
ld.d t1, a1, 7
st.d t0, a0, 0
st.d t1, a0, 7
jr ra
.align 5
16: vld vr0, a1, 0
vst vr0, a0, 0
jr ra
.align 5
17: vld vr0, a1, 0
ld.b t0, a1, 16
vst vr0, a0, 0
st.b t0, a0, 16
jr ra
.align 5
18: vld vr0, a1, 0
ld.h t0, a1, 16
vst vr0, a0, 0
st.h t0, a0, 16
jr ra
.align 5
19: vld vr0, a1, 0
ld.w t0, a1, 15
vst vr0, a0, 0
st.w t0, a0, 15
jr ra
.align 5
20: vld vr0, a1, 0
ld.w t0, a1, 16
vst vr0, a0, 0
st.w t0, a0, 16
jr ra
.align 5
21: vld vr0, a1, 0
ld.d t0, a1, 13
vst vr0, a0, 0
st.d t0, a0, 13
jr ra
.align 5
22: vld vr0, a1, 0
ld.d t0, a1, 14
vst vr0, a0, 0
st.d t0, a0, 14
jr ra
.align 5
23: vld vr0, a1, 0
ld.d t0, a1, 15
vst vr0, a0, 0
st.d t0, a0, 15
jr ra
.align 5
24: vld vr0, a1, 0
ld.d t0, a1, 16
vst vr0, a0, 0
st.d t0, a0, 16
jr ra
.align 5
25: vld vr0, a1, 0
vld vr1, a1, 9
vst vr0, a0, 0
vst vr1, a0, 9
jr ra
.align 5
26: vld vr0, a1, 0
vld vr1, a1, 10
vst vr0, a0, 0
vst vr1, a0, 10
jr ra
.align 5
27: vld vr0, a1, 0
vld vr1, a1, 11
vst vr0, a0, 0
vst vr1, a0, 11
jr ra
.align 5
28: vld vr0, a1, 0
vld vr1, a1, 12
vst vr0, a0, 0
vst vr1, a0, 12
jr ra
.align 5
29: vld vr0, a1, 0
vld vr1, a1, 13
vst vr0, a0, 0
vst vr1, a0, 13
jr ra
.align 5
30: vld vr0, a1, 0
vld vr1, a1, 14
vst vr0, a0, 0
vst vr1, a0, 14
jr ra
.align 5
31: vld vr0, a1, 0
vld vr1, a1, 15
vst vr0, a0, 0
vst vr1, a0, 15
jr ra
.align 5
32: xvld xr0, a1, 0
xvst xr0, a0, 0
jr ra
.align 5
33: xvld xr0, a1, 0
ld.b t0, a1, 32
xvst xr0, a0, 0
st.b t0, a0, 32
jr ra
.align 5
34: xvld xr0, a1, 0
ld.h t0, a1, 32
xvst xr0, a0, 0
st.h t0, a0, 32
jr ra
.align 5
35: xvld xr0, a1, 0
ld.w t0, a1, 31
xvst xr0, a0, 0
st.w t0, a0, 31
jr ra
.align 5
36: xvld xr0, a1, 0
ld.w t0, a1, 32
xvst xr0, a0, 0
st.w t0, a0, 32
jr ra
.align 5
37: xvld xr0, a1, 0
ld.d t0, a1, 29
xvst xr0, a0, 0
st.d t0, a0, 29
jr ra
.align 5
38: xvld xr0, a1, 0
ld.d t0, a1, 30
xvst xr0, a0, 0
st.d t0, a0, 30
jr ra
.align 5
39: xvld xr0, a1, 0
ld.d t0, a1, 31
xvst xr0, a0, 0
st.d t0, a0, 31
jr ra
.align 5
40: xvld xr0, a1, 0
ld.d t0, a1, 32
xvst xr0, a0, 0
st.d t0, a0, 32
jr ra
.align 5
41: xvld xr0, a1, 0
vld vr1, a1, 25
xvst xr0, a0, 0
vst vr1, a0, 25
jr ra
.align 5
42: xvld xr0, a1, 0
vld vr1, a1, 26
xvst xr0, a0, 0
vst vr1, a0, 26
jr ra
.align 5
43: xvld xr0, a1, 0
vld vr1, a1, 27
xvst xr0, a0, 0
vst vr1, a0, 27
jr ra
.align 5
44: xvld xr0, a1, 0
vld vr1, a1, 28
xvst xr0, a0, 0
vst vr1, a0, 28
jr ra
.align 5
45: xvld xr0, a1, 0
vld vr1, a1, 29
xvst xr0, a0, 0
vst vr1, a0, 29
jr ra
.align 5
46: xvld xr0, a1, 0
vld vr1, a1, 30
xvst xr0, a0, 0
vst vr1, a0, 30
jr ra
.align 5
47: xvld xr0, a1, 0
vld vr1, a1, 31
xvst xr0, a0, 0
vst vr1, a0, 31
jr ra
.align 5
48: xvld xr0, a1, 0
vld vr1, a1, 32
xvst xr0, a0, 0
vst vr1, a0, 32
jr ra
.align 5
49: xvld xr0, a1, 0
xvld xr1, a1, 17
xvst xr0, a0, 0
xvst xr1, a0, 17
jr ra
.align 5
50: xvld xr0, a1, 0
xvld xr1, a1, 18
xvst xr0, a0, 0
xvst xr1, a0, 18
jr ra
.align 5
51: xvld xr0, a1, 0
xvld xr1, a1, 19
xvst xr0, a0, 0
xvst xr1, a0, 19
jr ra
.align 5
52: xvld xr0, a1, 0
xvld xr1, a1, 20
xvst xr0, a0, 0
xvst xr1, a0, 20
jr ra
.align 5
53: xvld xr0, a1, 0
xvld xr1, a1, 21
xvst xr0, a0, 0
xvst xr1, a0, 21
jr ra
.align 5
54: xvld xr0, a1, 0
xvld xr1, a1, 22
xvst xr0, a0, 0
xvst xr1, a0, 22
jr ra
.align 5
55: xvld xr0, a1, 0
xvld xr1, a1, 23
xvst xr0, a0, 0
xvst xr1, a0, 23
jr ra
.align 5
56: xvld xr0, a1, 0
xvld xr1, a1, 24
xvst xr0, a0, 0
xvst xr1, a0, 24
jr ra
.align 5
57: xvld xr0, a1, 0
xvld xr1, a1, 25
xvst xr0, a0, 0
xvst xr1, a0, 25
jr ra
.align 5
58: xvld xr0, a1, 0
xvld xr1, a1, 26
xvst xr0, a0, 0
xvst xr1, a0, 26
jr ra
.align 5
59: xvld xr0, a1, 0
xvld xr1, a1, 27
xvst xr0, a0, 0
xvst xr1, a0, 27
jr ra
.align 5
60: xvld xr0, a1, 0
xvld xr1, a1, 28
xvst xr0, a0, 0
xvst xr1, a0, 28
jr ra
.align 5
61: xvld xr0, a1, 0
xvld xr1, a1, 29
xvst xr0, a0, 0
xvst xr1, a0, 29
jr ra
.align 5
62: xvld xr0, a1, 0
xvld xr1, a1, 30
xvst xr0, a0, 0
xvst xr1, a0, 30
jr ra
.align 5
63: xvld xr0, a1, 0
xvld xr1, a1, 31
xvst xr0, a0, 0
xvst xr1, a0, 31
jr ra
.align 5
64: xvld xr0, a1, 0
xvld xr1, a1, 32
xvst xr0, a0, 0
xvst xr1, a0, 32
jr ra
/*
* void *memcpy(void *dst, const void *src, size_t n)
*
* a0: dst
* a1: src
* a2: n
*/
.align 6
.global memcpy
memcpy:
sltui t0, a2, 65
bnez t0, __memcpy_small
add.d a3, a1, a2
add.d a2, a0, a2
xvld xr8, a1, 0
xvld xr9, a3, -32
/* align up destination address */
andi t1, a0, 31
sub.d t0, zero, t1
addi.d t0, t0, 32
add.d a1, a1, t0
add.d a5, a0, t0
addi.d a4, a3, -256
bgeu a1, a4, .Llt256
/* copy 256 bytes at a time */
.Lloop256:
xvld xr0, a1, 0
xvld xr1, a1, 32
xvld xr2, a1, 64
xvld xr3, a1, 96
xvld xr4, a1, 128
xvld xr5, a1, 160
xvld xr6, a1, 192
xvld xr7, a1, 224
addi.d a1, a1, 256
xvst xr0, a5, 0
xvst xr1, a5, 32
xvst xr2, a5, 64
xvst xr3, a5, 96
xvst xr4, a5, 128
xvst xr5, a5, 160
xvst xr6, a5, 192
xvst xr7, a5, 224
addi.d a5, a5, 256
bltu a1, a4, .Lloop256
/* copy the remaining bytes */
.Llt256:
addi.d a4, a3, -128
bgeu a1, a4, .Llt128
xvld xr0, a1, 0
xvld xr1, a1, 32
xvld xr2, a1, 64
xvld xr3, a1, 96
addi.d a1, a1, 128
xvst xr0, a5, 0
xvst xr1, a5, 32
xvst xr2, a5, 64
xvst xr3, a5, 96
addi.d a5, a5, 128
.Llt128:
addi.d a4, a3, -64
bgeu a1, a4, .Llt64
xvld xr0, a1, 0
xvld xr1, a1, 32
addi.d a1, a1, 64
xvst xr0, a5, 0
xvst xr1, a5, 32
addi.d a5, a5, 64
.Llt64:
addi.d a4, a3, -32
bgeu a1, a4, .Llt32
xvld xr0, a1, 0
xvst xr0, a5, 0
.Llt32:
xvst xr8, a0, 0
xvst xr9, a2, -32
/* return */
jr ra