If I do fcom qword does it set the flag in ZF or do you use je,jne, etc...
Also, any time I try using ZF, CF, or any of those I get an undefined symbol error.
Also, any time I try using ZF, CF, or any of those I get an undefined symbol error.
fcom [whatever you want]
fnstsw ax
sahf
Now you are ready for Jcc.
To learn about what flags are set, see Intel manual vol.2.