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- #include <features.h>
- #include <bits/arm_asm.h>
- .text
- .global memcmp
- .type memcmp,%function
- .align 4
- #if defined(THUMB1_ONLY)
- .thumb_func
- memcmp:
- cmp r2, #0
- bne 1f
- mov r0, #0
- bx lr
- 1:
- push {r4}
- add r4, r0, r2
- 2:
- ldrb r2, [r0]
- add r0, r0, #1
- ldrb r3, [r1]
- add r1, r1, #1
- cmp r4, r0
- beq 3f
- cmp r2, r3
- beq 2b
- 3:
- sub r0, r2, r3
- pop {r4}
- bx lr
- #else
- memcmp:
-
- subs r2, r2, #1
- IT(tt, mi)
- movmi r0, #0
- #if defined(__USE_BX__)
- bxmi lr
- #else
- movmi pc, lr
- #endif
-
- add ip, r0, r2
- 1:
- ldrb r2, [r0], #1
- ldrb r3, [r1], #1
- cmp ip, r0
- IT(t, cs)
- cmpcs r2, r3
- beq 1b
- sub r0, r2, r3
- #if defined(__USE_BX__)
- bx lr
- #else
- mov pc, lr
- #endif
- #endif
- .size memcmp,.-memcmp
- libc_hidden_def(memcmp)
- #ifdef __UCLIBC_SUSV3_LEGACY__
- strong_alias(memcmp,bcmp)
- #endif
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