Strange behaviour

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muisei
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Strange behaviour

Post by muisei »

This is a code snipet from my keyboard ISR:

xor ah,ah
mov ah,[eax+1]
mov byte [gs:0x0a],ah

The following is the same code but without XOR
mov ah,[eax+1]
mov byte [gs:0x0a],ah

These two codes generate two different results.Could you tell me where is the difference.
By the way I'm working in PM.

10x in advance
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muisei
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Post by muisei »

Stupid me :oops:
I found the problem
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