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Date:      Wed, 16 Jun 2010 12:55:14 +0000 (UTC)
From:      "Jayachandran C." <jchandra@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r209231 - in head/lib/libc/mips: . gen string sys
Message-ID:  <201006161255.o5GCtE83005999@svn.freebsd.org>

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Author: jchandra
Date: Wed Jun 16 12:55:14 2010
New Revision: 209231
URL: http://svn.freebsd.org/changeset/base/209231

Log:
  Merge jmallett@'s n64 work into HEAD - changeset 1.
  
  Update libc assembly code to use macros that work on both o32 and n64.
  Merge string functions from NetBSD.
  
  The changes are from http://svn.freebsd.org/base/user/jmallett/octeon
  
  Approved by:	rrs (mentor), jmallett

Modified:
  head/lib/libc/mips/SYS.h
  head/lib/libc/mips/gen/_setjmp.S
  head/lib/libc/mips/gen/setjmp.S
  head/lib/libc/mips/gen/sigsetjmp.S
  head/lib/libc/mips/string/bcmp.S
  head/lib/libc/mips/string/bcopy.S
  head/lib/libc/mips/string/bzero.S
  head/lib/libc/mips/string/ffs.S
  head/lib/libc/mips/string/index.S
  head/lib/libc/mips/string/rindex.S
  head/lib/libc/mips/string/strcmp.S
  head/lib/libc/mips/string/strlen.S
  head/lib/libc/mips/sys/Ovfork.S
  head/lib/libc/mips/sys/brk.S
  head/lib/libc/mips/sys/cerror.S
  head/lib/libc/mips/sys/exect.S
  head/lib/libc/mips/sys/fork.S
  head/lib/libc/mips/sys/pipe.S
  head/lib/libc/mips/sys/ptrace.S
  head/lib/libc/mips/sys/sbrk.S

Modified: head/lib/libc/mips/SYS.h
==============================================================================
--- head/lib/libc/mips/SYS.h	Wed Jun 16 12:42:20 2010	(r209230)
+++ head/lib/libc/mips/SYS.h	Wed Jun 16 12:55:14 2010	(r209231)
@@ -1,4 +1,4 @@
-/*	$NetBSD: SYS.h,v 1.18 2003/10/29 12:28:33 pooka Exp $ */
+/*	$NetBSD: SYS.h,v 1.19 2009/12/14 01:07:41 matt Exp $ */
 /* $FreeBSD$ */
 
 /*-
@@ -79,14 +79,22 @@
  */
 #ifdef __ABICALLS__
 	.abicalls
-# define PIC_PROLOGUE(x,sr)	.set noreorder; .cpload sr; .set reorder
-# define PIC_CALL(l,sr)		la sr, _C_LABEL(l); jr sr
+# if defined(__mips_o32) || defined(__mips_o64)
+#  define PIC_PROLOGUE(x)	SETUP_GP
+#  define PIC_TAILCALL(l)	PTR_LA t9, _C_LABEL(l); jr t9
+#  define PIC_RETURN()		j ra
+# else
+#  define PIC_PROLOGUE(x)	SETUP_GP64(t3, x)
+#  define PIC_TAILCALL(l)	PTR_LA t9, _C_LABEL(l); RESTORE_GP64; jr t9
+#  define PIC_RETURN()		RESTORE_GP64; j ra
+# endif
 #else
-# define PIC_PROLOGUE(x,sr)
-# define PIC_CALL(l,sr)		j  _C_LABEL(l)
-#endif
+# define PIC_PROLOGUE(x)
+# define PIC_TAILCALL(l)	j  _C_LABEL(l)
+# define PIC_RETURN()
+#endif /* __ABICALLS__ */
 
-# define SYSTRAP(x)	li v0, SYS_ ## x; syscall;
+# define SYSTRAP(x)	li v0,SYS_ ## x; syscall;
 
 /*
  * Do a syscall that cannot fail (sync, get{p,u,g,eu,eg)id)
@@ -106,7 +114,7 @@
  */
 #define PSEUDO_NOERROR(x)						\
 LEAF(__sys_ ## x);							\
-        .weak _C_LABEL(x);						\
+	.weak _C_LABEL(x);						\
 	_C_LABEL(x) = _C_LABEL(__CONCAT(__sys_,x));			\
 	.weak _C_LABEL(__CONCAT(_,x));					\
 	_C_LABEL(__CONCAT(_,x)) = _C_LABEL(__CONCAT(__sys_,x));		\
@@ -116,14 +124,14 @@ LEAF(__sys_ ## x);							\
 
 #define PSEUDO(x)							\
 LEAF(__sys_ ## x);							\
-        .weak _C_LABEL(x);						\
+	.weak _C_LABEL(x);						\
 	_C_LABEL(x) = _C_LABEL(__CONCAT(__sys_,x));			\
 	.weak _C_LABEL(__CONCAT(_,x));					\
 	_C_LABEL(__CONCAT(_,x)) = _C_LABEL(__CONCAT(__sys_,x));		\
-	PIC_PROLOGUE(x,t9);						\
+	PIC_PROLOGUE(__sys_ ## x);					\
 	SYSTRAP(x);							\
 	bne a3,zero,err;						\
-	j ra;								\
+	PIC_RETURN();							\
 err:									\
-	PIC_CALL(__cerror,t9);						\
-	END(__sys_ ## x)
+	PIC_TAILCALL(__cerror);						\
+END(__sys_ ## x)

Modified: head/lib/libc/mips/gen/_setjmp.S
==============================================================================
--- head/lib/libc/mips/gen/_setjmp.S	Wed Jun 16 12:42:20 2010	(r209230)
+++ head/lib/libc/mips/gen/_setjmp.S	Wed Jun 16 12:55:14 2010	(r209231)
@@ -1,4 +1,4 @@
-/*	$NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $	*/
+/*	$NetBSD: _setjmp.S,v 1.20.34.5 2010/02/03 23:46:47 matt Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -36,14 +36,15 @@
 __FBSDID("$FreeBSD$");
 #include <machine/regnum.h>
 
-#if defined(LIBC_SCCS) && !defined(lint)
-	ASMSTR("from: @(#)_setjmp.s	8.1 (Berkeley) 6/4/93")
-	ASMSTR("$NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $")
-#endif /* LIBC_SCCS and not lint */
+#include "SYS.h"
 
-#ifdef __ABICALLS__
-	.abicalls
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+	RCSID("from: @(#)_setjmp.s	8.1 (Berkeley) 6/4/93")
+#else
+	RCSID("$NetBSD: _setjmp.S,v 1.20.34.5 2010/02/03 23:46:47 matt Exp $")
 #endif
+#endif /* LIBC_SCCS and not lint */
 
 /*
  * C library -- _setjmp, _longjmp
@@ -56,62 +57,70 @@ __FBSDID("$FreeBSD$");
  * The previous signal state is NOT restored.
  */
 
+	.set	noreorder
 
 LEAF(_setjmp)
-#ifdef __ABICALLS__ 
-	.set	noreorder
-	.cpload t9
-	subu	sp, sp, CALLFRAME_SIZ	# allocate stack frame
-	.cprestore 16
+	REG_PROLOGUE
+	REG_LI	v0, _JB_MAGIC__SETJMP
+	REG_S	v0, (_JB_MAGIC  * SZREG)(a0)
+	REG_S	ra, (_JB_REG_RA * SZREG)(a0)
+	REG_S	s0, (_JB_REG_S0 * SZREG)(a0)
+	REG_S	s1, (_JB_REG_S1 * SZREG)(a0)
+	REG_S	s2, (_JB_REG_S2 * SZREG)(a0)
+	REG_S	s3, (_JB_REG_S3 * SZREG)(a0)
+	REG_S	s4, (_JB_REG_S4 * SZREG)(a0)
+	REG_S	s5, (_JB_REG_S5 * SZREG)(a0)
+	REG_S	s6, (_JB_REG_S6 * SZREG)(a0)
+	REG_S	s7, (_JB_REG_S7 * SZREG)(a0)
+	REG_S	s8, (_JB_REG_S8 * SZREG)(a0)
+#if defined(__mips_n32) || defined(__mips_n64)
+	REG_S	gp, (_JB_REG_GP * SZREG)(a0)	# newabi gp is callee-saved
 #endif
-	li	v0, _JB_MAGIC__SETJMP
-	sw	v0, (_JB_MAGIC  * SZREG)(a0)
-	sw	ra, (_JB_REG_RA * SZREG)(a0)
-	sw	s0, (_JB_REG_S0 * SZREG)(a0)
-	sw	s1, (_JB_REG_S1 * SZREG)(a0)
-	sw	s2, (_JB_REG_S2 * SZREG)(a0)
-	sw	s3, (_JB_REG_S3 * SZREG)(a0)
-	sw	s4, (_JB_REG_S4 * SZREG)(a0)
-	sw	s5, (_JB_REG_S5 * SZREG)(a0)
-	sw	s6, (_JB_REG_S6 * SZREG)(a0)
-	sw	s7, (_JB_REG_S7 * SZREG)(a0)
-	sw	s8, (_JB_REG_S8 * SZREG)(a0)
-#ifdef __ABICALLS__
-	addu	sp, sp, CALLFRAME_SIZ	# un-allocate the stack frame
-#endif	
-	sw	sp, (_JB_REG_SP * SZREG)(a0)
+	REG_S	sp, (_JB_REG_SP * SZREG)(a0)
+	REG_EPILOGUE
+
 	j	ra
 	move	v0, zero
 END(_setjmp)
 
 LEAF(_longjmp)
-#ifdef __ABICALLS__ 
-	.set	noreorder
-	.cpload t9
-	subu	sp, sp, CALLFRAME_SIZ	# allocate stack frame
-	.cprestore 16
-#endif  
-	lw	v0, (_JB_MAGIC  * SZREG)(a0)
-	lw	ra, (_JB_REG_RA * SZREG)(a0)
-	li	t0, _JB_MAGIC__SETJMP
-	bne	v0, t0, botch		# jump if error
-	lw	s0, (_JB_REG_S0 * SZREG)(a0)
-	lw	s1, (_JB_REG_S1 * SZREG)(a0)
-	lw	s2, (_JB_REG_S2 * SZREG)(a0)
-	lw	s3, (_JB_REG_S3 * SZREG)(a0)
-	lw	s4, (_JB_REG_S4 * SZREG)(a0)
-	lw	s5, (_JB_REG_S5 * SZREG)(a0)
-	lw	s6, (_JB_REG_S6 * SZREG)(a0)
-	lw	s7, (_JB_REG_S7 * SZREG)(a0)
-	lw	sp, (_JB_REG_SP * SZREG)(a0)
-	lw	s8, (_JB_REG_S8 * SZREG)(a0)
+	PIC_PROLOGUE(_longjmp)
+	PTR_SUBU	sp, sp, CALLFRAME_SIZ
+	SAVE_GP(CALLFRAME_GP)
+
+	REG_PROLOGUE
+	REG_L		v0, (_JB_MAGIC  * SZREG)(a0)	# get magic number
+	REG_L		ra, (_JB_REG_RA * SZREG)(a0)
+	REG_LI		t0, _JB_MAGIC__SETJMP
+	bne		v0, t0, botch		# jump if error
+	PTR_ADDU	sp, sp, CALLFRAME_SIZ	# does not matter, sanity
+	REG_L		s0, (_JB_REG_S0 * SZREG)(a0)
+	REG_L		s1, (_JB_REG_S1 * SZREG)(a0)
+	REG_L		s2, (_JB_REG_S2 * SZREG)(a0)
+	REG_L		s3, (_JB_REG_S3 * SZREG)(a0)
+	REG_L		s4, (_JB_REG_S4 * SZREG)(a0)
+	REG_L		s5, (_JB_REG_S5 * SZREG)(a0)
+	REG_L		s6, (_JB_REG_S6 * SZREG)(a0)
+	REG_L		s7, (_JB_REG_S7 * SZREG)(a0)
+#if defined(__mips_n32) || defined(__mips_n64)
+	REG_L		gp, (_JB_REG_GP * SZREG)(a0)
+#endif
+	REG_L		sp, (_JB_REG_SP * SZREG)(a0)
+	REG_L		s8, (_JB_REG_S8 * SZREG)(a0)
 
+	REG_EPILOGUE
+	move	v0, a1			# get return value in 1st arg
 	j	ra
-	move	v0, a1
+	nop
 
 botch:
-	jal	_C_LABEL(longjmperror)
-	nop
-	jal	_C_LABEL(abort)
+	/*
+	 * We know we aren't returning so we don't care about restoring
+	 * our caller's GP.
+	 */
+	PTR_LA	t9, _C_LABEL(longjmperror)
+	jalr	t9
 	nop
+
+	PIC_TAILCALL(abort)
 END(_longjmp)

Modified: head/lib/libc/mips/gen/setjmp.S
==============================================================================
--- head/lib/libc/mips/gen/setjmp.S	Wed Jun 16 12:42:20 2010	(r209230)
+++ head/lib/libc/mips/gen/setjmp.S	Wed Jun 16 12:55:14 2010	(r209231)
@@ -41,6 +41,8 @@ __FBSDID("$FreeBSD$");
 	ASMSTR("$NetBSD: setjmp.S,v 1.17 2005/09/17 11:49:39 tsutsui Exp $")
 #endif /* LIBC_SCCS and not lint */
 
+#include "SYS.h"
+
 #ifdef __ABICALLS__
 	.abicalls
 #endif
@@ -61,100 +63,102 @@ __FBSDID("$FreeBSD$");
 
 NESTED(setjmp, SETJMP_FRAME_SIZE, ra)
 	.mask	0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ)
-	.set	noreorder
-#ifdef __ABICALLS__
-	.cpload	t9
-#endif
-	subu	sp, sp, SETJMP_FRAME_SIZE	# allocate stack frame
-#ifdef __ABICALLS__
-	.cprestore 16
-#endif
-	sw	ra, CALLFRAME_RA(sp)		# save RA
-	sw	a0, CALLFRAME_SIZ(sp)		# store env
+	SETUP_GP
+	PTR_SUBU sp, sp, SETJMP_FRAME_SIZE	# allocate stack frame
+	SAVE_GP(CALLFRAME_GP)
+	SETUP_GP64(CALLFRAME_GP, setjmp)
+
+	REG_S	ra, CALLFRAME_RA(sp)		# save RA
+	REG_S	a0, CALLFRAME_SIZ(sp)		# store env
 
 	/* Get the signal mask. */
-	addu	a2, a0, _JB_SIGMASK * SZREG	# &oenv
+	PTR_ADDU a2, a0, _JB_SIGMASK * SZREG	# &oenv
 	li	a0, 1				# SIG_SETBLOCK
 	move	a1, zero			# &env == 0
-	la	t9, _C_LABEL(sigprocmask)	# get current signal mask
-	jal	t9
-	nop
+	PTR_LA	t9, _C_LABEL(sigprocmask)	# get current signal mask
+	jalr	t9
 
-	lw	a0, CALLFRAME_SIZ(sp)		# restore env pointer
-	lw	ra, CALLFRAME_RA(sp)		# restore RA
-	addu	sp, sp, SETJMP_FRAME_SIZE	# pop stack frame
-
-	li	v0, _JB_MAGIC_SETJMP
-	sw	v0, (_JB_MAGIC  * SZREG)(a0)
-	sw	ra, (_JB_REG_RA * SZREG)(a0)
-	sw	s0, (_JB_REG_S0 * SZREG)(a0)
-	sw	s1, (_JB_REG_S1 * SZREG)(a0)
-	sw	s2, (_JB_REG_S2 * SZREG)(a0)
-	sw	s3, (_JB_REG_S3 * SZREG)(a0)
-	sw	s4, (_JB_REG_S4 * SZREG)(a0)
-	sw	s5, (_JB_REG_S5 * SZREG)(a0)
-	sw	s6, (_JB_REG_S6 * SZREG)(a0)
-	sw	s7, (_JB_REG_S7 * SZREG)(a0)
-	sw	sp, (_JB_REG_SP * SZREG)(a0)
-	sw	s8, (_JB_REG_S8 * SZREG)(a0)
+	RESTORE_GP64
+	REG_L	a0, CALLFRAME_SIZ(sp)		# restore env pointer
+	REG_L	ra, CALLFRAME_RA(sp)		# restore RA
+	PTR_ADDU sp, sp, SETJMP_FRAME_SIZE	# pop stack frame
+
+	REG_LI	v0, _JB_MAGIC_SETJMP
+	REG_S	v0, (_JB_MAGIC  * SZREG)(a0)
+	REG_S	ra, (_JB_REG_RA * SZREG)(a0)
+	REG_S	s0, (_JB_REG_S0 * SZREG)(a0)
+	REG_S	s1, (_JB_REG_S1 * SZREG)(a0)
+	REG_S	s2, (_JB_REG_S2 * SZREG)(a0)
+	REG_S	s3, (_JB_REG_S3 * SZREG)(a0)
+	REG_S	s4, (_JB_REG_S4 * SZREG)(a0)
+	REG_S	s5, (_JB_REG_S5 * SZREG)(a0)
+	REG_S	s6, (_JB_REG_S6 * SZREG)(a0)
+	REG_S	s7, (_JB_REG_S7 * SZREG)(a0)
+	REG_S	sp, (_JB_REG_SP * SZREG)(a0)
+	REG_S	s8, (_JB_REG_S8 * SZREG)(a0)
+#if defined(__mips_n32) || defined(__mips_n64)
+	REG_S	gp, (_JB_REG_GP * SZREG)(a0)
+#endif
 
 	move	v0, zero
-	j	ra
+	jr	ra
 END(setjmp)
 
 #define LONGJMP_FRAME_SIZE	(CALLFRAME_SIZ + (SZREG * 2))
 
 NESTED(longjmp, LONGJMP_FRAME_SIZE, ra)
 	.mask	0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ)
-	.set	noreorder
-#ifdef __ABICALLS__
-	.cpload	t9
-#endif
-	subu	sp, sp, LONGJMP_FRAME_SIZE	# allocate stack frame
-#ifdef __ABICALLS__
-	.cprestore 16
-#endif
-	sw	ra, CALLFRAME_RA(sp)		# save RA
-	lw	v0, (_JB_MAGIC  * SZREG)(a0)
-	li	t0, _JB_MAGIC_SETJMP
+	PIC_PROLOGUE(longjmp)
+	PTR_SUBU sp, sp, LONGJMP_FRAME_SIZE	# allocate stack frame
+	SAVE_GP(CALLFRAME_GP)
+
+	REG_S	ra, CALLFRAME_RA(sp)		# save RA
+	REG_L	v0, (_JB_MAGIC  * SZREG)(a0)
+	REG_LI	t0, _JB_MAGIC_SETJMP
 	bne	v0, t0, botch		# jump if error
 	nop
 
-	sw	a0, CALLFRAME_SIZ(sp)		# save env
-	sw	a1, (CALLFRAME_SIZ + SZREG)(sp)	# save return value
+	REG_S	a0, CALLFRAME_SIZ(sp)		# save env
+	REG_S	a1, (CALLFRAME_SIZ + SZREG)(sp)	# save return value
 
 	# set sigmask
-	addu	a1, a0, _JB_SIGMASK * SZREG	# &set
+	PTR_ADDU a1, a0, _JB_SIGMASK * SZREG	# &set
 	move	a2, zero			# &oset == NULL
 	li	a0, 3				# SIG_SETMASK
-	la	t9,_C_LABEL(sigprocmask)	# set current signal mask
+	PTR_LA	t9,_C_LABEL(sigprocmask)	# set current signal mask
 	jal	t9
 	nop
 
-	lw	a0, CALLFRAME_SIZ(sp)		# restore env
-	lw	a1, (CALLFRAME_SIZ + SZREG)(sp)	# restore return value
+	REG_L	a0, CALLFRAME_SIZ(sp)		# restore env
+	REG_L	a1, (CALLFRAME_SIZ + SZREG)(sp)	# restore return value
+
+	REG_L	ra, (_JB_REG_RA * SZREG)(a0)
+	REG_L	s0, (_JB_REG_S0 * SZREG)(a0)
+	REG_L	s1, (_JB_REG_S1 * SZREG)(a0)
+	REG_L	s2, (_JB_REG_S2 * SZREG)(a0)
+	REG_L	s3, (_JB_REG_S3 * SZREG)(a0)
+	REG_L	s4, (_JB_REG_S4 * SZREG)(a0)
+	REG_L	s5, (_JB_REG_S5 * SZREG)(a0)
+	REG_L	s6, (_JB_REG_S6 * SZREG)(a0)
+	REG_L	s7, (_JB_REG_S7 * SZREG)(a0)
+	REG_L	sp, (_JB_REG_SP * SZREG)(a0)
+	REG_L	s8, (_JB_REG_S8 * SZREG)(a0)
+#if defined(__mips_n32) || defined(__mips_n64)
+	REG_L	gp, (_JB_REG_GP * SZREG)(a0)
+#endif
 
-	lw	ra, (_JB_REG_RA * SZREG)(a0)
-	lw	s0, (_JB_REG_S0 * SZREG)(a0)
-	lw	s1, (_JB_REG_S1 * SZREG)(a0)
-	lw	s2, (_JB_REG_S2 * SZREG)(a0)
-	lw	s3, (_JB_REG_S3 * SZREG)(a0)
-	lw	s4, (_JB_REG_S4 * SZREG)(a0)
-	lw	s5, (_JB_REG_S5 * SZREG)(a0)
-	lw	s6, (_JB_REG_S6 * SZREG)(a0)
-	lw	s7, (_JB_REG_S7 * SZREG)(a0)
-	lw	sp, (_JB_REG_SP * SZREG)(a0)
-	lw	s8, (_JB_REG_S8 * SZREG)(a0)
 	move	v0, a1
 	j	ra
 	nop
 
 botch:
-	la	t9, _C_LABEL(longjmperror)
-	jal	t9
+	/*
+	 * We know we aren't returning so we don't care about restoring
+	 * our caller's GP.
+	 */
+	PTR_LA	t9, _C_LABEL(longjmperror)
+	jalr	t9
 	nop
 
-	la	t9, _C_LABEL(abort)
-	jal	t9
-	nop
+	PIC_TAILCALL(abort)
 END(longjmp)

Modified: head/lib/libc/mips/gen/sigsetjmp.S
==============================================================================
--- head/lib/libc/mips/gen/sigsetjmp.S	Wed Jun 16 12:42:20 2010	(r209230)
+++ head/lib/libc/mips/gen/sigsetjmp.S	Wed Jun 16 12:55:14 2010	(r209231)
@@ -40,6 +40,8 @@ __FBSDID("$FreeBSD$");
 	ASMSTR("$NetBSD: sigsetjmp.S,v 1.8 2005/09/17 11:49:39 tsutsui Exp $")
 #endif /* LIBC_SCCS and not lint */
 
+#include "SYS.h"
+
 #ifdef __ABICALLS__
 	.abicalls
 #endif
@@ -57,30 +59,19 @@ __FBSDID("$FreeBSD$");
  */
 
 LEAF(sigsetjmp)
-#ifdef __ABICALLS__
-	.set	noreorder
-	.cpload	t9
-	.set	reorder
-#endif
+	PIC_PROLOGUE(sigsetjmp)
+
 	bne	a1, 0x0, 1f			# do saving of signal mask?
-	la	t9, _setjmp
-	jr t9
+	PIC_TAILCALL(_setjmp)
 
-1:	la	t9, setjmp
-	jr t9
+1:	PIC_TAILCALL(setjmp)
 END(sigsetjmp)
 
 LEAF(siglongjmp)
-#ifdef __ABICALLS__
-	.set	noreorder
-	.cpload	t9
-	.set	reorder
-#endif
-	lw	t0, (_JB_MAGIC  * SZREG)(a0)
-	li	t1, _JB_MAGIC__SETJMP
+	PIC_PROLOGUE(siglongjmp)
+	REG_L	t0, (_JB_MAGIC  * SZREG)(a0)
+	REG_LI	t1, _JB_MAGIC__SETJMP
 	bne	t0, t1, 1f			# setjmp or _setjmp magic?
-	la	t9, _longjmp
-	jr	t9
-1:	la	t9, longjmp
-	jr	t9
+	PIC_TAILCALL(_longjmp)
+1:	PIC_TAILCALL(longjmp)
 END(siglongjmp)

Modified: head/lib/libc/mips/string/bcmp.S
==============================================================================
--- head/lib/libc/mips/string/bcmp.S	Wed Jun 16 12:42:20 2010	(r209230)
+++ head/lib/libc/mips/string/bcmp.S	Wed Jun 16 12:55:14 2010	(r209231)
@@ -1,4 +1,4 @@
-/*	$NetBSD: bcmp.S,v 1.8 2003/08/07 16:42:16 agc Exp $	*/
+/*	$NetBSD: bcmp.S,v 1.9 2009/12/14 01:07:42 matt Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -35,9 +35,15 @@
 #include <machine/asm.h>
 __FBSDID("$FreeBSD$");
 
+#define _LOCORE		/* XXX not really, just assembly-code source */
+#include <machine/endian.h>	/* LWLO/LWHI, SWLO/SWHI */
+
 #if defined(LIBC_SCCS) && !defined(lint)
+#if 0
 	ASMSTR("from: @(#)bcmp.s	8.1 (Berkeley) 6/4/93")
-	ASMSTR("$NetBSD: bcmp.S,v 1.8 2003/08/07 16:42:16 agc Exp $")
+#else
+	ASMSTR("$NetBSD: bcmp.S,v 1.9 2009/12/14 01:07:42 matt Exp $")
+#endif
 #endif /* LIBC_SCCS and not lint */
 
 #ifdef __ABICALLS__
@@ -49,86 +55,76 @@ __FBSDID("$FreeBSD$");
 
 LEAF(bcmp)
 	.set	noreorder
-	blt	a2, 16, small		# is it worth any trouble?
-	xor	v0, a0, a1		# compare low two bits of addresses
-	and	v0, v0, 3
-	subu	a3, zero, a1		# compute # bytes to word align address
-	bne	v0, zero, unaligned	# not possible to align addresses
-	and	a3, a3, 3
-
-	beq	a3, zero, 1f
-	subu	a2, a2, a3		# subtract from remaining count
-	move	v0, v1			# init v0,v1 so unmodified bytes match
-#ifdef __MIPSEB__
-	lwl	v0, 0(a0)		# read 1, 2, or 3 bytes
-	lwl	v1, 0(a1)
-#else
-	lwr	v0, 0(a0)		# read 1, 2, or 3 bytes
-	lwr	v1, 0(a1)
-#endif
-	addu	a1, a1, a3
-	bne	v0, v1, nomatch
-	addu	a0, a0, a3
+	blt		a2, 16, small	# is it worth any trouble?
+	xor		v0, a0, a1	# compare low two bits of addresses
+	and		v0, v0, 3
+	PTR_SUBU	a3, zero, a1	# compute # bytes to word align address
+	bne		v0, zero, unaligned # not possible to align addresses
+	and		a3, a3, 3
+
+	beq		a3, zero, 1f
+	PTR_SUBU	a2, a2, a3	# subtract from remaining count
+	move		v0, v1		# init v0,v1 so unmodified bytes match
+	LWHI		v0, 0(a0)	# read 1, 2, or 3 bytes
+	LWHI		v1, 0(a1)
+	PTR_ADDU	a1, a1, a3
+	bne		v0, v1, nomatch
+	PTR_ADDU	a0, a0, a3
 1:
-	and	a3, a2, ~3		# compute number of whole words left
-	subu	a2, a2, a3		#   which has to be >= (16-3) & ~3
-	addu	a3, a3, a0		# compute ending address
+	and		a3, a2, ~3	# compute number of whole words left
+	PTR_SUBU	a2, a2, a3	#   which has to be >= (16-3) & ~3
+	PTR_ADDU	a3, a3, a0	# compute ending address
 2:
-	lw	v0, 0(a0)		# compare words
-	lw	v1, 0(a1)
-	addu	a0, a0, 4
-	bne	v0, v1, nomatch
-	addu	a1, a1, 4
-	bne	a0, a3, 2b
+	lw		v0, 0(a0)	# compare words
+	lw		v1, 0(a1)
+	PTR_ADDU	a0, a0, 4
+	bne		v0, v1, nomatch
+	PTR_ADDU	a1, a1, 4
+	bne		a0, a3, 2b
 	nop
-	b	small			# finish remainder
+	b		small		# finish remainder
 	nop
 unaligned:
-	beq	a3, zero, 2f
-	subu	a2, a2, a3		# subtract from remaining count
-	addu	a3, a3, a0		# compute ending address
+	beq		a3, zero, 2f
+	PTR_SUBU	a2, a2, a3	# subtract from remaining count
+	PTR_ADDU	a3, a3, a0	# compute ending address
 1:
-	lbu	v0, 0(a0)		# compare bytes until a1 word aligned
-	lbu	v1, 0(a1)
-	addu	a0, a0, 1
-	bne	v0, v1, nomatch
-	addu	a1, a1, 1
-	bne	a0, a3, 1b
+	lbu		v0, 0(a0)	# compare bytes until a1 word aligned
+	lbu		v1, 0(a1)
+	PTR_ADDU	a0, a0, 1
+	bne		v0, v1, nomatch
+	PTR_ADDU	a1, a1, 1
+	bne		a0, a3, 1b
 	nop
 2:
-	and	a3, a2, ~3		# compute number of whole words left
-	subu	a2, a2, a3		#   which has to be >= (16-3) & ~3
-	addu	a3, a3, a0		# compute ending address
+	and		a3, a2, ~3	# compute number of whole words left
+	PTR_SUBU	a2, a2, a3	#   which has to be >= (16-3) & ~3
+	PTR_ADDU	a3, a3, a0	# compute ending address
 3:
-#ifdef __MIPSEB__
-	lwl	v0, 0(a0)		# compare words a0 unaligned, a1 aligned
-	lwr	v0, 3(a0)
-#else
-	lwr	v0, 0(a0)		# compare words a0 unaligned, a1 aligned
-	lwl	v0, 3(a0)
-#endif
-	lw	v1, 0(a1)
-	addu	a0, a0, 4
-	bne	v0, v1, nomatch
-	addu	a1, a1, 4
-	bne	a0, a3, 3b
+	LWHI		v0, 0(a0)	# compare words a0 unaligned, a1 aligned
+	LWLO		v0, 3(a0)
+	lw		v1, 0(a1)
+	PTR_ADDU	a0, a0, 4
+	bne		v0, v1, nomatch
+	PTR_ADDU	a1, a1, 4
+	bne		a0, a3, 3b
 	nop
 small:
-	ble	a2, zero, match
-	addu	a3, a2, a0		# compute ending address
+	ble		a2, zero, match
+	PTR_ADDU	a3, a2, a0		# compute ending address
 1:
-	lbu	v0, 0(a0)
-	lbu	v1, 0(a1)
-	addu	a0, a0, 1
-	bne	v0, v1, nomatch
-	addu	a1, a1, 1
-	bne	a0, a3, 1b
+	lbu		v0, 0(a0)
+	lbu		v1, 0(a1)
+	PTR_ADDU	a0, a0, 1
+	bne		v0, v1, nomatch
+	PTR_ADDU	a1, a1, 1
+	bne		a0, a3, 1b
 	nop
 match:
-	j	ra
-	move	v0, zero
+	j		ra
+	move		v0, zero
 nomatch:
-	j	ra
-	li	v0, 1
+	j		ra
+	li		v0, 1
 	.set	reorder
 END(bcmp)

Modified: head/lib/libc/mips/string/bcopy.S
==============================================================================
--- head/lib/libc/mips/string/bcopy.S	Wed Jun 16 12:42:20 2010	(r209230)
+++ head/lib/libc/mips/string/bcopy.S	Wed Jun 16 12:55:14 2010	(r209231)
@@ -1,4 +1,4 @@
-/*	$NetBSD: bcopy.S,v 1.2 2005/12/27 11:23:53 tsutsui Exp $	*/
+/*	$NetBSD: bcopy.S,v 1.3 2009/12/14 00:39:00 matt Exp $	*/
 
 /*
  * Mach Operating System
@@ -38,9 +38,15 @@
 #include <machine/asm.h>
 __FBSDID("$FreeBSD$");
 
+#define _LOCORE		/* XXX not really, just assembly-code source */
+#include <machine/endian.h>
+
 #if defined(LIBC_SCCS) && !defined(lint)
+#if 0
 	ASMSTR("from: @(#)mips_bcopy.s	2.2 CMU 18/06/93")
-	ASMSTR("$NetBSD: bcopy.S,v 1.2 2005/12/27 11:23:53 tsutsui Exp $")
+#else
+	ASMSTR("$NetBSD: bcopy.S,v 1.3 2009/12/14 00:39:00 matt Exp $")
+#endif
 #endif /* LIBC_SCCS and not lint */
 
 #ifdef __ABICALLS__
@@ -99,71 +105,72 @@ LEAF(FUNCTION)
 	 *	copy is alignable.  eg if src and dest are both
 	 *	on a halfword boundary.
 	 */
-	andi	t1,DSTREG,3		# get last 3 bits of dest
-	bne	t1,zero,3f
-	andi	t0,SRCREG,3		# get last 3 bits of src
-	bne	t0,zero,5f
+	andi		t1,DSTREG,(SZREG-1)	# get last bits of dest
+	bne		t1,zero,3f		# dest unaligned
+	andi		t0,SRCREG,(SZREG-1)	# get last bits of src
+	bne		t0,zero,5f
 
 	/*
-	 *	Forward aligned->aligned copy, 8*4 bytes at a time.
+	 *	Forward aligned->aligned copy, 8 words at a time.
 	 */
-	li	AT,-32
-	and	t0,SIZEREG,AT		# count truncated to multiple of 32 */
-	addu	a3,SRCREG,t0		# run fast loop up to this address
-	sltu	AT,SRCREG,a3		# any work to do?
-	beq	AT,zero,2f
-	subu	SIZEREG,t0
+98:
+	li		AT,-(SZREG*8)
+	and		t0,SIZEREG,AT		# count truncated to multiples
+	PTR_ADDU	a3,SRCREG,t0		# run fast loop up to this addr
+	sltu		AT,SRCREG,a3		# any work to do?
+	beq		AT,zero,2f
+	PTR_SUBU	SIZEREG,t0
 
 	/*
 	 *	loop body
 	 */
 1:	# cp
-	lw	t3,0(SRCREG)
-	lw	v1,4(SRCREG)
-	lw	t0,8(SRCREG)
-	lw	t1,12(SRCREG)
-	addu	SRCREG,32
-	sw	t3,0(DSTREG)
-	sw	v1,4(DSTREG)
-	sw	t0,8(DSTREG)
-	sw	t1,12(DSTREG)
-	lw	t1,-4(SRCREG)
-	lw	t0,-8(SRCREG)
-	lw	v1,-12(SRCREG)
-	lw	t3,-16(SRCREG)
-	addu	DSTREG,32
-	sw	t1,-4(DSTREG)
-	sw	t0,-8(DSTREG)
-	sw	v1,-12(DSTREG)
-	bne	SRCREG,a3,1b
-	sw	t3,-16(DSTREG)
+	REG_L		t3,(0*SZREG)(SRCREG)
+	REG_L		v1,(1*SZREG)(SRCREG)
+	REG_L		t0,(2*SZREG)(SRCREG)
+	REG_L		t1,(3*SZREG)(SRCREG)
+	PTR_ADDU	SRCREG,SZREG*8
+	REG_S		t3,(0*SZREG)(DSTREG)
+	REG_S		v1,(1*SZREG)(DSTREG)
+	REG_S		t0,(2*SZREG)(DSTREG)
+	REG_S		t1,(3*SZREG)(DSTREG)
+	REG_L		t1,(-1*SZREG)(SRCREG)
+	REG_L		t0,(-2*SZREG)(SRCREG)
+	REG_L		v1,(-3*SZREG)(SRCREG)
+	REG_L		t3,(-4*SZREG)(SRCREG)
+	PTR_ADDU	DSTREG,SZREG*8
+	REG_S		t1,(-1*SZREG)(DSTREG)
+	REG_S		t0,(-2*SZREG)(DSTREG)
+	REG_S		v1,(-3*SZREG)(DSTREG)
+	bne		SRCREG,a3,1b
+	REG_S		t3,(-4*SZREG)(DSTREG)
 
 	/*
 	 *	Copy a word at a time, no loop unrolling.
 	 */
 2:	# wordcopy
-	andi	t2,SIZEREG,3		# get byte count / 4
-	subu	t2,SIZEREG,t2		# t2 = number of words to copy * 4
-	beq	t2,zero,3f
-	addu	t0,SRCREG,t2		# stop at t0
-	subu	SIZEREG,SIZEREG,t2
+	andi		t2,SIZEREG,(SZREG-1)	# get byte count / SZREG
+	PTR_SUBU	t2,SIZEREG,t2		# t2 = words to copy * SZREG
+	beq		t2,zero,3f
+	PTR_ADDU	t0,SRCREG,t2		# stop at t0
+	PTR_SUBU	SIZEREG,SIZEREG,t2
 1:
-	lw	t3,0(SRCREG)
-	addu	SRCREG,4
-	sw	t3,0(DSTREG)
-	bne	SRCREG,t0,1b
-	addu	DSTREG,4
+	REG_L		t3,0(SRCREG)
+	PTR_ADDU	SRCREG,SZREG
+	REG_S		t3,0(DSTREG)
+	bne		SRCREG,t0,1b
+	PTR_ADDU	DSTREG,SZREG
 
 3:	# bytecopy
-	beq	SIZEREG,zero,4f	# nothing left to do?
+	beq		SIZEREG,zero,4f		# nothing left to do?
 	nop
 1:
-	lb	t3,0(SRCREG)
-	addu	SRCREG,1
-	sb	t3,0(DSTREG)
-	subu	SIZEREG,1
-	bgtz	SIZEREG,1b
-	addu	DSTREG,1
+	lb		t3,0(SRCREG)
+	PTR_ADDU	SRCREG,1
+	sb		t3,0(DSTREG)
+	PTR_SUBU	SIZEREG,1
+	bgtz		SIZEREG,1b
+	PTR_ADDU	DSTREG,1
 
 4:	# copydone
 	j	ra
@@ -173,96 +180,91 @@ LEAF(FUNCTION)
 	 *	Copy from unaligned source to aligned dest.
 	 */
 5:	# destaligned
-	andi	t0,SIZEREG,3		# t0 = bytecount mod 4
-	subu	a3,SIZEREG,t0		# number of words to transfer
-	beq	a3,zero,3b
+	andi		t0,SIZEREG,(SZREG-1)	# t0 = bytecount mod SZREG
+	PTR_SUBU	a3,SIZEREG,t0		# number of words to transfer
+	beq		a3,zero,3b
 	nop
-	move	SIZEREG,t0		# this many to do after we are done
-	addu	a3,SRCREG,a3		# stop point
+	move		SIZEREG,t0		# this many to do after we are done
+	PTR_ADDU	a3,SRCREG,a3		# stop point
 
 1:
-#ifdef __MIPSEB__
-	lwl	t3,0(SRCREG)
-	lwr	t3,3(SRCREG)
-#else
-	lwr	t3,0(SRCREG)
-	lwl	t3,3(SRCREG)
-#endif
-	addi	SRCREG,4
-	sw	t3,0(DSTREG)
-	bne	SRCREG,a3,1b
-	addi	DSTREG,4
+	REG_LHI		t3,0(SRCREG)
+	REG_LLO		t3,SZREG-1(SRCREG)
+	PTR_ADDI	SRCREG,SZREG
+	REG_S		t3,0(DSTREG)
+	bne		SRCREG,a3,1b
+	PTR_ADDI	DSTREG,SZREG
 
-	j	3b
+	b		3b
 	nop
 
 6:	# backcopy -- based on above
-	addu	SRCREG,SIZEREG
-	addu	DSTREG,SIZEREG
-	andi	t1,DSTREG,3		# get last 3 bits of dest
-	bne	t1,zero,3f
-	andi	t0,SRCREG,3		# get last 3 bits of src
-	bne	t0,zero,5f
+	PTR_ADDU	SRCREG,SIZEREG
+	PTR_ADDU	DSTREG,SIZEREG
+	andi		t1,DSTREG,SZREG-1	# get last 3 bits of dest
+	bne		t1,zero,3f
+	andi		t0,SRCREG,SZREG-1	# get last 3 bits of src
+	bne		t0,zero,5f
 
 	/*
 	 *	Forward aligned->aligned copy, 8*4 bytes at a time.
 	 */
-	li	AT,-32
-	and	t0,SIZEREG,AT		# count truncated to multiple of 32
-	beq	t0,zero,2f		# any work to do?
-	subu	SIZEREG,t0
-	subu	a3,SRCREG,t0
+	li		AT,(-8*SZREG)
+	and		t0,SIZEREG,AT		# count truncated to multiple of 32
+	beq		t0,zero,2f		# any work to do?
+	PTR_SUBU	SIZEREG,t0
+	PTR_SUBU	a3,SRCREG,t0
 
 	/*
 	 *	loop body
 	 */
 1:	# cp
-	lw	t3,-16(SRCREG)
-	lw	v1,-12(SRCREG)
-	lw	t0,-8(SRCREG)
-	lw	t1,-4(SRCREG)
-	subu	SRCREG,32
-	sw	t3,-16(DSTREG)
-	sw	v1,-12(DSTREG)
-	sw	t0,-8(DSTREG)
-	sw	t1,-4(DSTREG)
-	lw	t1,12(SRCREG)
-	lw	t0,8(SRCREG)
-	lw	v1,4(SRCREG)
-	lw	t3,0(SRCREG)
-	subu	DSTREG,32
-	sw	t1,12(DSTREG)
-	sw	t0,8(DSTREG)
-	sw	v1,4(DSTREG)
-	bne	SRCREG,a3,1b
-	sw	t3,0(DSTREG)
+	REG_L		t3,(-4*SZREG)(SRCREG)
+	REG_L		v1,(-3*SZREG)(SRCREG)
+	REG_L		t0,(-2*SZREG)(SRCREG)
+	REG_L		t1,(-1*SZREG)(SRCREG)
+	PTR_SUBU	SRCREG,8*SZREG
+	REG_S		t3,(-4*SZREG)(DSTREG)
+	REG_S		v1,(-3*SZREG)(DSTREG)
+	REG_S		t0,(-2*SZREG)(DSTREG)
+	REG_S		t1,(-1*SZREG)(DSTREG)
+	REG_L		t1,(3*SZREG)(SRCREG)
+	REG_L		t0,(2*SZREG)(SRCREG)
+	REG_L		v1,(1*SZREG)(SRCREG)
+	REG_L		t3,(0*SZREG)(SRCREG)
+	PTR_SUBU	DSTREG,8*SZREG
+	REG_S		t1,(3*SZREG)(DSTREG)
+	REG_S		t0,(2*SZREG)(DSTREG)
+	REG_S		v1,(1*SZREG)(DSTREG)
+	bne		SRCREG,a3,1b
+	REG_S		t3,(0*SZREG)(DSTREG)
 
 	/*
 	 *	Copy a word at a time, no loop unrolling.
 	 */
 2:	# wordcopy
-	andi	t2,SIZEREG,3		# get byte count / 4
-	subu	t2,SIZEREG,t2		# t2 = number of words to copy * 4
-	beq	t2,zero,3f
-	subu	t0,SRCREG,t2		# stop at t0
-	subu	SIZEREG,SIZEREG,t2
+	andi		t2,SIZEREG,SZREG-1	# get byte count / 4
+	PTR_SUBU	t2,SIZEREG,t2		# t2 = number of words to copy
+	beq		t2,zero,3f
+	PTR_SUBU	t0,SRCREG,t2		# stop at t0
+	PTR_SUBU	SIZEREG,SIZEREG,t2
 1:
-	lw	t3,-4(SRCREG)
-	subu	SRCREG,4
-	sw	t3,-4(DSTREG)
-	bne	SRCREG,t0,1b
-	subu	DSTREG,4
+	REG_L		t3,-SZREG(SRCREG)
+	PTR_SUBU	SRCREG,SZREG
+	REG_S		t3,-SZREG(DSTREG)
+	bne		SRCREG,t0,1b
+	PTR_SUBU	DSTREG,SZREG
 
 3:	# bytecopy
-	beq	SIZEREG,zero,4f		# nothing left to do?
+	beq		SIZEREG,zero,4f		# nothing left to do?
 	nop
 1:
-	lb	t3,-1(SRCREG)
-	subu	SRCREG,1
-	sb	t3,-1(DSTREG)
-	subu	SIZEREG,1
-	bgtz	SIZEREG,1b
-	subu	DSTREG,1
+	lb		t3,-1(SRCREG)
+	PTR_SUBU	SRCREG,1
+	sb		t3,-1(DSTREG)
+	PTR_SUBU	SIZEREG,1
+	bgtz		SIZEREG,1b
+	PTR_SUBU	DSTREG,1
 
 4:	# copydone
 	j	ra
@@ -272,27 +274,22 @@ LEAF(FUNCTION)
 	 *	Copy from unaligned source to aligned dest.
 	 */
 5:	# destaligned
-	andi	t0,SIZEREG,3		# t0 = bytecount mod 4
-	subu	a3,SIZEREG,t0		# number of words to transfer
-	beq	a3,zero,3b
+	andi		t0,SIZEREG,SZREG-1	# t0 = bytecount mod 4
+	PTR_SUBU	a3,SIZEREG,t0		# number of words to transfer
+	beq		a3,zero,3b
 	nop
-	move	SIZEREG,t0		# this many to do after we are done
-	subu	a3,SRCREG,a3		# stop point
+	move		SIZEREG,t0		# this many to do after we are done
+	PTR_SUBU	a3,SRCREG,a3		# stop point
 
 1:
-#ifdef __MIPSEB__
-	lwl	t3,-4(SRCREG)
-	lwr	t3,-1(SRCREG)
-#else
-	lwr	t3,-4(SRCREG)
-	lwl	t3,-1(SRCREG)
-#endif
-	subu	SRCREG,4
-	sw	t3,-4(DSTREG)
-	bne	SRCREG,a3,1b
-	subu	DSTREG,4
+	REG_LHI		t3,-SZREG(SRCREG)
+	REG_LLO		t3,-1(SRCREG)
+	PTR_SUBU	SRCREG,SZREG
+	REG_S		t3,-SZREG(DSTREG)
+	bne		SRCREG,a3,1b
+	PTR_SUBU	DSTREG,SZREG
 
-	j	3b
+	b		3b
 	nop
 
 	.set	reorder

Modified: head/lib/libc/mips/string/bzero.S
==============================================================================
--- head/lib/libc/mips/string/bzero.S	Wed Jun 16 12:42:20 2010	(r209230)
+++ head/lib/libc/mips/string/bzero.S	Wed Jun 16 12:55:14 2010	(r209231)
@@ -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 +54,48 @@ __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
+	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
+#if SZREG == 4
+	PTR_SUBU	a1, a1, a3	# subtract from remaining count
+	SWHI		zero, 0(a0)	# clear 1, 2, or 3 bytes to align
+	PTR_ADDU	a0, a0, a3
+#endif
+#if SZREG == 8
+	PTR_SUBU	a1, a1, a3	# subtract from remaining count

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***



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