[x86 setup] Make sure AH=00h when setting a video mode

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Passing a u8 into a register doesn't mean gcc will zero-extend it.
Also, don't depend on thhe register not to change.

Per bug report from Saul Tamari.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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H. Peter Anvin 2007-08-23 09:28:42 -07:00

parent b015124e56

commit 71351b98b9

1 changed files with 3 additions and 2 deletions

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arch/i386/boot/video-vga.c

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