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m1n1/src/utils_asm.S

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/* SPDX-License-Identifier: MIT */
.text
.globl memcpy64
.type memcpy64, @function
memcpy64:
ands x2, x2, #~7
beq 2f
1: ldr x3, [x1], #8
str x3, [x0], #8
subs x2, x2, #8
bne 1b
2:
ret
.globl memset64
.type memset64, @function
memset64:
ands x2, x2, #~7
beq 2f
1: str x1, [x0], #8
subs x2, x2, #8
bne 1b
2:
ret
.globl memcpy32
.type memcpy32, @function
memcpy32:
ands x2, x2, #~3
beq 2f
1: ldr w3, [x1], #4
str w3, [x0], #4
subs x2, x2, #4
bne 1b
2:
ret
.globl memset32
.type memset32, @function
memset32:
ands x2, x2, #~3
beq 2f
1: str w1, [x0], #4
subs x2, x2, #4
bne 1b
2:
ret
.globl memcpy16
.type memcpy16, @function
memcpy16:
ands x2, x2, #~1
beq 2f
1: ldrh w3, [x1], #2
strh w3, [x0], #2
subs x2, x2, #2
bne 1b
2:
ret
.globl memset16
.type memset16, @function
memset16:
ands x2, x2, #~1
beq 2f
1: strh w1, [x0], #2
subs x2, x2, #2
bne 1b
2:
ret
.globl memcpy8
.type memcpy8, @function
memcpy8:
cmp x2, #0
beq 2f
1: ldrb w3, [x1], #1
strb w3, [x0], #1
subs x2, x2, #1
bne 1b
2:
ret
.globl memset8
.type memset8, @function
memset8:
cmp x2, #0
beq 2f
1: strb w1, [x0], #1
subs x2, x2, #1
bne 1b
2:
ret