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69 lines
1.3 KiB
69 lines
1.3 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* linux/arch/arm/lib/memcpy.S |
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* |
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* Author: Nicolas Pitre |
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* Created: Sep 28, 2005 |
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* Copyright: MontaVista Software, Inc. |
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*/ |
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#include <linux/linkage.h> |
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#include <asm/assembler.h> |
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#include <asm/unwind.h> |
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#define LDR1W_SHIFT 0 |
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#define STR1W_SHIFT 0 |
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.macro ldr1w ptr reg abort |
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W(ldr) \reg, [\ptr], #4 |
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.endm |
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.macro ldr4w ptr reg1 reg2 reg3 reg4 abort |
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ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} |
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.endm |
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.macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort |
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ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} |
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.endm |
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.macro ldr1b ptr reg cond=al abort |
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ldrb\cond \reg, [\ptr], #1 |
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.endm |
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.macro str1w ptr reg abort |
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W(str) \reg, [\ptr], #4 |
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.endm |
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.macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort |
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stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} |
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.endm |
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.macro str1b ptr reg cond=al abort |
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strb\cond \reg, [\ptr], #1 |
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.endm |
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.macro enter reg1 reg2 |
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stmdb sp!, {r0, \reg1, \reg2} |
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.endm |
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.macro usave reg1 reg2 |
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UNWIND( .save {r0, \reg1, \reg2} ) |
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.endm |
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.macro exit reg1 reg2 |
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ldmfd sp!, {r0, \reg1, \reg2} |
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.endm |
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.text |
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/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ |
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ENTRY(__memcpy) |
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ENTRY(mmiocpy) |
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WEAK(memcpy) |
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#include "copy_template.S" |
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ENDPROC(memcpy) |
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ENDPROC(mmiocpy) |
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ENDPROC(__memcpy)
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