d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

>From Charles Hannum

Browse Source 
Change movl %es: -2(reg) to use a subl $2,reg when fixing up the IDT
entries for bdb.  This seems to be the best way to go.

Some day soon #ifdef BDB all of Bruces debugger code.
This commit is contained in:
rgrimes 1993-11-13 04:43:25 +00:00
parent aa3ae6ef2a
commit 93f6cc5abd
2 changed files with 10 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/i386/boot/biosboot/boot2.S
View File

@ -24,7 +24,7 @@
* the rights to redistribute these changes.
*
* from: Mach, Revision 2.2 92/04/04 11:35:26 rpd
* $Id$
* $Id: boot2.S,v 1.2 1993/10/16 19:11:33 rgrimes Exp $
*/
#include "asm.h"
@ -128,10 +128,12 @@ ENTRY(boot2)
mov %ax, %es
/* fix up IDT entries for bdb */
movl %es: -2(%ebx), %eax /* actually movw to %ax */
subl $2, %ebx
movl %es: (%ebx), %eax /* actually movw to %ax */
addr32
movl %eax, EXT(Idt)+8*DEBUG_VECTOR /* actually movw %ax */
movl %es: -2(%ecx), %eax /* actually movw to %ax */
subl $2, %ecx
movl %es: (%ecx), %eax /* actually movw to %ax */
addr32
movl %eax, EXT(Idt)+8*BREAKPOINT_VECTOR /* actually movw %ax */

8
sys/i386/boot/boot2.S
View File

@ -24,7 +24,7 @@
* the rights to redistribute these changes.
*
* from: Mach, Revision 2.2 92/04/04 11:35:26 rpd
* $Id$
* $Id: boot2.S,v 1.2 1993/10/16 19:11:33 rgrimes Exp $
*/
#include "asm.h"
@ -128,10 +128,12 @@ ENTRY(boot2)
mov %ax, %es
/* fix up IDT entries for bdb */
movl %es: -2(%ebx), %eax /* actually movw to %ax */
subl $2, %ebx
movl %es: (%ebx), %eax /* actually movw to %ax */
addr32
movl %eax, EXT(Idt)+8*DEBUG_VECTOR /* actually movw %ax */
movl %es: -2(%ecx), %eax /* actually movw to %ax */
subl $2, %ecx
movl %es: (%ecx), %eax /* actually movw to %ax */
addr32
movl %eax, EXT(Idt)+8*BREAKPOINT_VECTOR /* actually movw %ax */