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Revert "Move stack to below 0x7c00; leaving it at the default location" 

This reverts commit 03ca71c38d.
This commit is contained in:
Michael Brown 2007-06-28 21:50:36 +01:00
parent c73bff7ae5
commit 00473f0952
1 changed files with 3 additions and 5 deletions
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8
src/arch/i386/prefix/dskprefix.S
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@ -31,10 +31,6 @@
jmp $BOOTSEG, $go /* reload cs:ip to match relocation addr */
go:
xorw %ax,%ax /* put stack at 0000:7c00 */
movw %ax,%ss
movw $0x7c00,%sp
movw $0x2000-12, %di /* 0x2000 is arbitrary value >= length */
/* of bootsect + room for stack + 12 for */
/* saved disk parm block */
@ -42,6 +38,8 @@ go:
movw $BOOTSEG, %ax
movw %ax,%ds
movw %ax,%es
movw %ax,%ss /* put stack at BOOTSEG:0x4000-12. */
movw %di,%sp
/* Many BIOS's default disk parameter tables will not recognize multi-sector
* reads beyond the maximum sector number specified in the default diskette
@ -52,7 +50,7 @@ go:
* will set the maximum sector count to 36 - the most we will encounter on an
* ED 2.88. High doesn't hurt. Low does.
*
* Segments are as follows: ds=es=cs - BOOTSEG
* Segments are as follows: ds=es=ss=cs - BOOTSEG
*/
xorw %cx,%cx