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Fix stack on return from PXE NBP so that we can return properly.

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This commit is contained in:
Michael Brown
2007-06-28 23:37:49 +01:00
parent 045fb24557
commit d71b116f54
1 changed files with 2 additions and 1 deletions
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3
src/arch/i386/image/pxe_image.c
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@@ -63,7 +63,8 @@ static int pxe_exec ( struct image *image __unused ) {
__asm__ __volatile__ ( REAL_CODE ( "pushw %%cx\n\t" __asm__ __volatile__ ( REAL_CODE ( "pushw %%cx\n\t"
"pushw %%ax\n\t" "pushw %%ax\n\t"
"movw %%cx, %%es\n\t" "movw %%cx, %%es\n\t"
"lcall $0, $0x7c00\n\t" ) "lcall $0, $0x7c00\n\t"
"addw $4, %%sp\n\t" )
: "=a" ( rc ), "=b" ( discard_b ), : "=a" ( rc ), "=b" ( discard_b ),
"=c" ( discard_c ) "=c" ( discard_c )
: "a" ( & __from_text16 ( ppxe ) ), : "a" ( & __from_text16 ( ppxe ) ),