mirror of
https://github.com/fail0verflow/mini.git
synced 2024-11-05 19:25:12 +01:00
63 lines
658 B
ArmAsm
63 lines
658 B
ArmAsm
.arm
|
|
|
|
.globl memcpy32
|
|
.globl memcpy16
|
|
.globl memcpy8
|
|
.globl memset32
|
|
.globl memset16
|
|
.globl memset8
|
|
|
|
.text
|
|
|
|
memcpy32:
|
|
bics r2, #3
|
|
bxeq lr
|
|
1: ldr r3, [r1],#4
|
|
str r3, [r0],#4
|
|
subs r2, #4
|
|
bne 1b
|
|
bx lr
|
|
|
|
memset32:
|
|
bics r2, #3
|
|
bxeq lr
|
|
1: str r1, [r0],#4
|
|
subs r2, #4
|
|
bne 1b
|
|
bx lr
|
|
|
|
memcpy16:
|
|
bics r2, #1
|
|
bxeq lr
|
|
1: ldr r3, [r1],#2
|
|
str r3, [r0],#2
|
|
subs r2, #2
|
|
bne 1b
|
|
bx lr
|
|
|
|
memset16:
|
|
bics r2, #1
|
|
bxeq lr
|
|
1: str r1, [r0],#2
|
|
subs r2, #2
|
|
bne 1b
|
|
bx lr
|
|
|
|
memcpy8:
|
|
cmp r2, #0
|
|
bxeq lr
|
|
1: ldr r3, [r1],#1
|
|
str r3, [r0],#1
|
|
subs r2, #1
|
|
bne 1b
|
|
bx lr
|
|
|
|
memset8:
|
|
cmp r2, #0
|
|
bxeq lr
|
|
1: str r1, [r0],#1
|
|
subs r2, #1
|
|
bne 1b
|
|
bx lr
|
|
|