ADLO: no serial output after sti in loader.s
Simon Xin Cheng
scheng at msica.com
Fri Jul 23 18:57:00 CEST 2004
I am working on booting Linux from hard disk with VGA support on an EPIA
board. I am using ADLO to load video bios and bochs bios.
I found an interesting thing. The last two instructions in the loader.s
of ADLO is :
I turned DEBUG_SERIAL on in rombios.c. But I can not see any debugging
information through serial port after the jumping.
However, if I commented out the sti, I can see all debugging
information. So what is the problem with the sti? Are there any
LinuxBIOS interrupt service routines that never return back?
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