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-rw-r--r--arch/arm26/lib/memzero.S80
1 files changed, 0 insertions, 80 deletions
diff --git a/arch/arm26/lib/memzero.S b/arch/arm26/lib/memzero.S
deleted file mode 100644
index cc5bf686006..00000000000
--- a/arch/arm26/lib/memzero.S
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * linux/arch/arm26/lib/memzero.S
- *
- * Copyright (C) 1995-2000 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-
- .text
- .align 5
- .word 0
-/*
- * Align the pointer in r0. r3 contains the number of bytes that we are
- * mis-aligned by, and r1 is the number of bytes. If r1 < 4, then we
- * don't bother; we use byte stores instead.
- */
-1: subs r1, r1, #4 @ 1 do we have enough
- blt 5f @ 1 bytes to align with?
- cmp r3, #2 @ 1
- strltb r2, [r0], #1 @ 1
- strleb r2, [r0], #1 @ 1
- strb r2, [r0], #1 @ 1
- add r1, r1, r3 @ 1 (r1 = r1 - (4 - r3))
-/*
- * The pointer is now aligned and the length is adjusted. Try doing the
- * memzero again.
- */
-
-ENTRY(__memzero)
- mov r2, #0 @ 1
- ands r3, r0, #3 @ 1 unaligned?
- bne 1b @ 1
-/*
- * r3 = 0, and we know that the pointer in r0 is aligned to a word boundary.
- */
- cmp r1, #16 @ 1 we can skip this chunk if we
- blt 4f @ 1 have < 16 bytes
-/*
- * We need an extra register for this loop - save the return address and
- * use the LR
- */
- str lr, [sp, #-4]! @ 1
- mov ip, r2 @ 1
- mov lr, r2 @ 1
-
-3: subs r1, r1, #64 @ 1 write 32 bytes out per loop
- stmgeia r0!, {r2, r3, ip, lr} @ 4
- stmgeia r0!, {r2, r3, ip, lr} @ 4
- stmgeia r0!, {r2, r3, ip, lr} @ 4
- stmgeia r0!, {r2, r3, ip, lr} @ 4
- bgt 3b @ 1
- LOADREGS(eqfd, sp!, {pc}) @ 1/2 quick exit
-/*
- * No need to correct the count; we're only testing bits from now on
- */
- tst r1, #32 @ 1
- stmneia r0!, {r2, r3, ip, lr} @ 4
- stmneia r0!, {r2, r3, ip, lr} @ 4
- tst r1, #16 @ 1 16 bytes or more?
- stmneia r0!, {r2, r3, ip, lr} @ 4
- ldr lr, [sp], #4 @ 1
-
-4: tst r1, #8 @ 1 8 bytes or more?
- stmneia r0!, {r2, r3} @ 2
- tst r1, #4 @ 1 4 bytes or more?
- strne r2, [r0], #4 @ 1
-/*
- * When we get here, we've got less than 4 bytes to zero. We
- * may have an unaligned pointer as well.
- */
-5: tst r1, #2 @ 1 2 bytes or more?
- strneb r2, [r0], #1 @ 1
- strneb r2, [r0], #1 @ 1
- tst r1, #1 @ 1 a byte left over
- strneb r2, [r0], #1 @ 1
- RETINSTR(mov,pc,lr) @ 1