From c24f72d433de2701a4b34d4b8e553febdc968ba5 Mon Sep 17 00:00:00 2001
From: Ben Gras <ben@minix3.org>
Date: Tue, 19 Jul 2005 16:00:25 +0000
Subject: [PATCH] Made phys_fill fill its 4-byte pattern any number of bytes
 (instead of rounded down to a 4-byte multiple)

Fixed dependency omission
---
 kernel/Makefile  |  4 +++-
 kernel/klib386.s | 18 ++++++++++++++++--
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/kernel/Makefile b/kernel/Makefile
index 20ccab4bf..dd6d21473 100755
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -35,8 +35,10 @@ clean:
 
 depend: 
 	cd system && $(MAKE) -$(MAKEFLAGS) $@
-	/usr/bin/mkdep "$(CC) -E $(CPPFLAGS)" *.c > .depend
+	/usr/bin/mkdep "$(CC) -E $(CPPFLAGS)" *.c *.s > .depend
 
 # Include generated dependencies.
+klib.o:	klib386.s klib88.s
+mpx.o:	mpx386.s mpx88.s
 include .depend
 
diff --git a/kernel/klib386.s b/kernel/klib386.s
index dd551575b..8439aff8e 100755
--- a/kernel/klib386.s
+++ b/kernel/klib386.s
@@ -442,8 +442,9 @@ pc_small:
 !*===========================================================================*
 !*				phys_fill				     *
 !*===========================================================================*
-! PUBLIC void phys_fill(phys_bytes source, phys_bytes bytecount, char char);
-! Zero a block of physical memory.
+! PUBLIC void phys_fill(phys_bytes source, phys_bytes bytecount,
+! 	unsigned long pattern);
+! Fill a block of physical memory with pattern.
 
 	.align	16
 
@@ -464,6 +465,19 @@ fill_start:
 	add	esi, 4
 	dec	eax
 	jnz	fill_start
+	! Any remaining bytes?
+	mov	eax, 12(ebp)
+	and	eax, 3
+remain_fill:
+	cmp	eax, 0
+	jz	fill_done
+	movb	bl, 16(ebp)
+   	movb    (esi), bl
+	add	esi, 1
+	inc	ebp
+	dec	eax
+	jmp	remain_fill
+fill_done:
 	pop	ds
 	pop	ebx
 	pop	esi