Merge from head@222434.

1 files changed, 27 insertions, 26 deletions

diff --git a/lib/libc/mips/string/bzero.S b/lib/libc/mips/string/bzero.S
index 9b34130..83e54ba 100644
--- a/lib/libc/mips/string/bzero.S
+++ b/lib/libc/mips/string/bzero.S
@@ -1,4 +1,4 @@
-/*	$NetBSD: bzero.S,v 1.8 2003/08/07 16:42:16 agc Exp $	*/
+/*	$NetBSD: bzero.S,v 1.10 2009/12/14 02:53:52 matt Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -36,10 +36,15 @@
 __FBSDID("$FreeBSD$");
 
 #if defined(LIBC_SCCS) && !defined(lint)
+#if 0
 	ASMSTR("from: @(#)bzero.s	8.1 (Berkeley) 6/4/93")
-	ASMSTR("$NetBSD: bzero.S,v 1.8 2003/08/07 16:42:16 agc Exp $")
+#else
+	ASMSTR("$NetBSD: bzero.S,v 1.10 2009/12/14 02:53:52 matt Exp $")
+#endif
 #endif /* LIBC_SCCS and not lint */
 
+#define _LOCORE		/* XXX not really, just assembly-code source */
+#include <machine/endian.h>
 
 #ifdef __ABICALLS__
 	.abicalls
@@ -49,34 +54,30 @@ __FBSDID("$FreeBSD$");
 
 LEAF(bzero)
 	.set	noreorder
-	blt	a1, 12, smallclr	# small amount to clear?
-	subu	a3, zero, a0		# compute # bytes to word align address
-	and	a3, a3, 3
-	beq	a3, zero, 1f		# skip if word aligned
-	subu	a1, a1, a3		# subtract from remaining count
-#ifdef __MIPSEB__
-	swl	zero, 0(a0)		# clear 1, 2, or 3 bytes to align
-#else
-	swr	zero, 0(a0)		# clear 1, 2, or 3 bytes to align
-#endif
-	addu	a0, a0, a3
+	blt		a1, 3*SZREG, smallclr # small amount to clear?
+	PTR_SUBU	a3, zero, a0	# compute # bytes to word align address
+	and		a3, a3, SZREG-1
+	beq		a3, zero, 1f	# skip if word aligned
+	PTR_SUBU	a1, a1, a3	# subtract from remaining count
+	REG_SHI		zero, 0(a0)	# clear 1, 2, or 3 bytes to align
+	PTR_ADDU	a0, a0, a3
 1:
-	and	v0, a1, 3		# compute number of words left
-	subu	a3, a1, v0
-	move	a1, v0
-	addu	a3, a3, a0		# compute ending address
+	and		v0, a1, SZREG-1	# compute number of words left
+	PTR_SUBU	a3, a1, v0
+	move		a1, v0
+	PTR_ADDU	a3, a3, a0	# compute ending address
 2:
-	addu	a0, a0, 4		# clear words
-	bne	a0, a3, 2b		#   unrolling loop doesnt help
-	sw	zero, -4(a0)		#   since we are limited by memory speed
+	PTR_ADDU	a0, a0, SZREG	# clear words
+	bne		a0, a3, 2b	#  unrolling loop doesnt help
+	REG_S		zero, -SZREG(a0) # since we are limited by memory speed
 smallclr:
-	ble	a1, zero, 2f
-	addu	a3, a1, a0		# compute ending address
+	ble		a1, zero, 2f
+	PTR_ADDU	a3, a1, a0	# compute ending address
 1:
-	addu	a0, a0, 1		# clear bytes
-	bne	a0, a3, 1b
-	sb	zero, -1(a0)
+	PTR_ADDU	a0, a0, 1	# clear bytes
+	bne		a0, a3, 1b
+	sb		zero, -1(a0)
 2:
-	j	ra
+	j		ra
 	nop
 END(bzero)