H. Peter Anvin 71351b98b9 [x86 setup] Make sure AH=00h when setting a video mode ...

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>

2007-08-23 13:03:25 -07:00

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