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[src/trunk]: src/sys/arch/i386/stand/lib/crt/bootsect - Use the proper multip...



details:   https://anonhg.NetBSD.org/src/rev/7ee18849a072
branches:  trunk
changeset: 472491:7ee18849a072
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Apr 30 15:31:17 1999 +0000

description:
- Use the proper multiply instructions so that we don't get truncated.

diffstat:

 sys/arch/i386/stand/lib/crt/bootsect/start_bootsect.S |  7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diffs (22 lines):

diff -r 8154a5a9f39f -r 7ee18849a072 sys/arch/i386/stand/lib/crt/bootsect/start_bootsect.S
--- a/sys/arch/i386/stand/lib/crt/bootsect/start_bootsect.S     Fri Apr 30 15:29:44 1999 +0000
+++ b/sys/arch/i386/stand/lib/crt/bootsect/start_bootsect.S     Fri Apr 30 15:31:17 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: start_bootsect.S,v 1.13 1999/04/28 23:24:42 fvdl Exp $ */
+/*     $NetBSD: start_bootsect.S,v 1.14 1999/04/30 15:31:18 christos Exp $     */
        
 /*
  * BIOS bootsector startup
@@ -222,10 +222,9 @@
        orl     %ebx,%ecx
        incl    %ecx            /* cx has #cylinders */
 
-       mul     %edx            /* h * s (will fit in 16 bits) */
+       mull    %edx            /* h * s (will fit in 16 bits) */
        data32
-       mul     %ecx            /* eax = c * h * s */
-       data32
+       mull    %ecx            /* eax = c * h * s */
 
        data32
        addr32



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