Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>

	* malloc/malloc.c (_malloc_internal): Performance fix.  Move
	if statement out of loop.

	* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite.  Much faster
	implementation using GMP functions.  Contributed by
	Torbjorn Granlund and Ulrich Drepper.

	* stdio/test_rdwr.c: Include <errno.h>.

	* sysdeps/i386/i586/Implies: New file.

	New highly optimized string functions for i[345]86.
	* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
        * sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
        * sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
        * sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
        * sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
        * sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
        * sysdeps/i386/i586/strlen.S: New file.
	* sysdeps/i386/memchr.c: Removed.  There is now an assembler version.

	* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
	not correspond to used values.

	* sysdeps/unix/sysv/linux/nfs/nfs.h: New file.  Simply a wrapper
        around a kernel header file.
	* sysdeps/unix/sysv/linux/Dist: Add it.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
	Likewise.

	* sysdeps/unix/sysv/linux/local_lim.h: Rewrite.  Instead of
        defining ourself we use a kernel header file.

	* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
        call handler for i586.

	* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
Sat Oct 14 02:52:36 1995  Ulrich Drepper  <drepper@ipd.info.uni-karlsruhe.de>

	* malloc/malloc.c (_malloc_internal): Performance fix.  Move
	if statement out of loop.

	* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite.  Much faster
	implementation using GMP functions.  Contributed by
	Torbjorn Granlund and Ulrich Drepper.

	* stdio/test_rdwr.c: Include <errno.h>.

	* sysdeps/i386/i586/Implies: New file.

	New highly optimized string functions for i[345]86.
	* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
        * sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
        * sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
        * sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
        * sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
        * sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
        * sysdeps/i386/i586/strlen.S: New file.
	* sysdeps/i386/memchr.c: Removed.  There is now an assembler version.

	* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
	not correspond to used values.

	* sysdeps/unix/sysv/linux/nfs/nfs.h: New file.  Simply a wrapper
        around a kernel header file.
	* sysdeps/unix/sysv/linux/Dist: Add it.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
	Likewise.

	* sysdeps/unix/sysv/linux/local_lim.h: Rewrite.  Instead of
        defining ourself we use a kernel header file.

	* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
        call handler for i586.

	* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.

4 files changed, 91 insertions, 0 deletions

diff --git a/sysdeps/i960/add_n.s b/sysdeps/i960/add_n.s
new file mode 100644
index 0000000..6031f6d
--- /dev/null
+++ b/sysdeps/i960/add_n.s
@@ -0,0 +1,21 @@
+.text
+	.align 4
+	.globl ___mpn_add_n
+___mpn_add_n:
+	mov	0,g6		# clear carry-save register
+	cmpo	1,0		# clear cy
+
+Loop:	subo	1,g3,g3		# update loop counter
+	ld	(g1),g5		# load from s1_ptr
+	addo	4,g1,g1		# s1_ptr++
+	ld	(g2),g4		# load from s2_ptr
+	addo	4,g2,g2		# s2_ptr++
+	cmpo	g6,1		# restore cy from g6, relies on cy being 0
+	addc	g4,g5,g4	# main add
+	subc	0,0,g6		# save cy in g6
+	st	g4,(g0)		# store result to res_ptr
+	addo	4,g0,g0		# res_ptr++
+	cmpobne	0,g3,Loop	# when branch is taken, clears C bit
+
+	mov	g6,g0
+	ret
diff --git a/sysdeps/i960/addmul_1.s b/sysdeps/i960/addmul_1.s
new file mode 100644
index 0000000..1a3de95
--- /dev/null
+++ b/sysdeps/i960/addmul_1.s
@@ -0,0 +1,26 @@
+.text
+	.align	4
+	.globl	___mpn_mul_1
+___mpn_mul_1:
+	subo	g2,0,g2
+	shlo	2,g2,g4
+	subo	g4,g1,g1
+	subo	g4,g0,g13
+	mov	0,g0
+
+	cmpo	1,0		# clear C bit on AC.cc
+
+Loop:	ld	(g1)[g2*4],g5
+	emul	g3,g5,g6
+	ld	(g13)[g2*4],g5
+
+	addc	g0,g6,g6	# relies on that C bit is clear
+	addc	0,g7,g7
+	addc	g5,g6,g6	# relies on that C bit is clear
+	st	g6,(g13)[g2*4]
+	addc	0,g7,g0
+
+	addo	g2,1,g2
+	cmpobne	0,g2,Loop	# when branch is taken, clears C bit
+
+	ret
diff --git a/sysdeps/i960/mul_1.s b/sysdeps/i960/mul_1.s
new file mode 100644
index 0000000..e75ea42
--- /dev/null
+++ b/sysdeps/i960/mul_1.s
@@ -0,0 +1,23 @@
+.text
+	.align	4
+	.globl	___mpn_mul_1
+___mpn_mul_1:
+	subo	g2,0,g2
+	shlo	2,g2,g4
+	subo	g4,g1,g1
+	subo	g4,g0,g13
+	mov	0,g0
+
+	cmpo	1,0		# clear C bit on AC.cc
+
+Loop:	ld	(g1)[g2*4],g5
+	emul	g3,g5,g6
+
+	addc	g0,g6,g6	# relies on that C bit is clear
+	st	g6,(g13)[g2*4]
+	addc	0,g7,g0
+
+	addo	g2,1,g2
+	cmpobne	0,g2,Loop	# when branch is taken, clears C bit
+
+	ret
diff --git a/sysdeps/i960/sub_n.s b/sysdeps/i960/sub_n.s
new file mode 100644
index 0000000..13ebbfa
--- /dev/null
+++ b/sysdeps/i960/sub_n.s
@@ -0,0 +1,21 @@
+.text
+	.align 4
+	.globl ___mpn_sub_n
+___mpn_sub_n:
+	mov	1,g6		# set carry-save register
+	cmpo	1,0		# clear cy
+
+Loop:	subo	1,g3,g3		# update loop counter
+	ld	(g1),g5		# load from s1_ptr
+	addo	4,g1,g1		# s1_ptr++
+	ld	(g2),g4		# load from s2_ptr
+	addo	4,g2,g2		# s2_ptr++
+	cmpo	g6,1		# restore cy from g6, relies on cy being 0
+	subc	g4,g5,g4	# main subtract
+	subc	0,0,g6		# save cy in g6
+	st	g4,(g0)		# store result to res_ptr
+	addo	4,g0,g0		# res_ptr++
+	cmpobne	0,g3,Loop	# when branch is taken, cy will be 0
+
+	mov	g6,g0
+	ret