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[prefix] Report both %esi and %ecx when opening payload fails

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2014-08-26 14:53:46 +01:00
parent 9d21e13522
commit 8b64cc7fba
2 changed files with 6 additions and 1 deletions
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4
src/arch/i386/prefix/mromprefix.S
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@@ -99,6 +99,7 @@ find_mem_bar:
jle 1f
stc
movl $0xbabababa, %esi /* Report "No suitable BAR" */
movl rom_bar_size, %ecx
jmp 99f
1: movw $4, %bp
@@ -157,7 +158,8 @@ find_mem_bar:
call pci_write_config_dword
/* Locate our ROM image */
1: addr32 es cmpw $0xaa55, (%eax)
1: movl $0xaa55, %ecx /* 55aa signature */
addr32 es cmpw %cx, (%eax)
je 2f
stc
movl %eax, %esi /* Report failure address */