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changeset 90:8dc062c6359b

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target-utils/libc: memcpy16 and memcpy32 optimized variants implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 28 Oct 2016 23:02:44 +0000
parents f4619719834f
children 659fa1a26269
files target-utils/libc/Makefile target-utils/libc/memcpy16.S target-utils/libc/memcpy32.S
diffstat 3 files changed, 20 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/target-utils/libc/Makefile	Fri Oct 28 22:55:51 2016 +0000
+++ b/target-utils/libc/Makefile	Fri Oct 28 23:02:44 2016 +0000
@@ -4,8 +4,8 @@
 AR=	arm-elf-ar
 RANLIB=	arm-elf-ranlib
 
-OBJS=	atoi.o bzero.o ctype_.o index.o memcpy.o rindex.o strcasecmp.o strcat.o\
-	strcmp.o strcpy.o strncat.o strncmp.o strncpy.o
+OBJS=	atoi.o bzero.o ctype_.o index.o memcpy.o memcpy16.o memcpy32.o rindex.o\
+	strcasecmp.o strcat.o strcmp.o strcpy.o strncat.o strncmp.o strncpy.o
 
 all:	libc.a
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/libc/memcpy16.S	Fri Oct 28 23:02:44 2016 +0000
@@ -0,0 +1,9 @@
+	.text
+	.code	32
+	.globl	memcpy16
+memcpy16:
+1:	subs	r2, r2, #2
+	ldrcsh	r3, [r1], #2
+	strcsh	r3, [r0], #2
+	bhi	1b
+	bx	lr
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/libc/memcpy32.S	Fri Oct 28 23:02:44 2016 +0000
@@ -0,0 +1,9 @@
+	.text
+	.code	32
+	.globl	memcpy32
+memcpy32:
+1:	subs	r2, r2, #4
+	ldrcs	r3, [r1], #4
+	strcs	r3, [r0], #4
+	bhi	1b
+	bx	lr