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Fix for MS's idiocy on a Win98 boot disk I have.

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Apparently they use ESP without initializing anything more than SP.

svn path=/trunk/; revision=3677
This commit is contained in:
Brian Palmer 2002-10-30 23:05:17 +00:00
parent 8cfdeb8c6b
commit 39204fdedc
1 changed files with 9 additions and 0 deletions
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9
freeldr/freeldr/arch/i386/arch.S
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@ -155,6 +155,15 @@ inrmode:
movw %ax,%fs
movw %ax,%gs
movw %ax,%ss
/* Clear out the high 16-bits of ESP */
/* This is needed because I have a stupid */
/* MS-Win98 boot disk that hangs if there is */
/* anything other than 0x0000 in the high */
/* 16-bits of ESP. Even though real-mode */
/* code should only use SP and not ESP. */
xorl %esp,%esp
movw stack16,%sp
/* Put the return address back onto the stack */