pushfpop axor ax,0100h ;set bit 8push axpopf ;tracing mode is now enablednop ;int 1 will be called the first time after this instructionnopnop
pushfpop axand ax,0FEFFh ;reset bit 8push axpopf ;trace mode is now disabled
don't forget to change the int1's vector to your own int1 routine!
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