mini/utils_asm.S

.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