4 replies to this topic

[gujjar]

Hi All!!
i have to write an assembly prog ,to check a number positive or negatie.can any one help me???

[Warrior]

Negative numbers have their most significant bit set.So you only need to check that if the highest bit is 1,if it is then its negative else it's positive.

mov  al,-1        ;11111111
test  al,0x80 
jz     positive    ;if its zero positve
jmp  negative

Warrior

[gujjar]

thankss dear

[zarazhi]

Thanks also, I also had the same question! :)
http://www.business567.com

[gujjar]

hi zarazhi!!
have you completed that program?