fcomp error using 80bit numbers 
Author Message
 fcomp error using 80bit numbers

when doing FCOMP TBYTE PTR [BX] i am getting the following error: Argument
to operation or instruction has illegal size

if i am using FCOMP QWORD PTR [BX] for 64bit everything is ok but i want to
compare 2 80bit num.

what shouldi change in my code?

TIA



Thu, 31 Oct 2002 03:00:00 GMT  
 fcomp error using 80bit numbers

Quote:

>when doing FCOMP TBYTE PTR [BX] i am getting the following error: Argument
>to operation or instruction has illegal size

You can't use FCOMP with 80-bit numbers held in memory (only 32-bit or
64-bit).

Quote:
>if i am using FCOMP QWORD PTR [BX] for 64bit everything is ok but i want to
>compare 2 80bit num.

In that case you need to have both of the numbers in FPU registers.

S.



Fri, 01 Nov 2002 03:00:00 GMT  
 
 [ 2 post ] 

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