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arm/memcpy: optimize register usage #350

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Mar 11, 2024
Merged

arm/memcpy: optimize register usage #350

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6 changes: 3 additions & 3 deletions arch/arm/memcpy.S
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@

#define DST r0
#define SRC r1
#define LEN r12
#define LEN r5

.thumb
.syntax unified
Expand All @@ -42,7 +42,7 @@
.globl memcpy
.type memcpy, %function
memcpy:
str DST, [sp, #-8]!
push {r0, r5}
mov LEN, r2
cmp LEN, #64

Expand Down Expand Up @@ -76,7 +76,7 @@ memcpy:
bne 1b

.Lreturn:
ldr r0, [sp], #8
pop {r0, r5}
bx lr


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