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Mail Archives: djgpp/2002/04/22/12:30:01

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Message-Id: <4.3.2.7.2.20020422131623.00bd4110@mail.ciudad.com.ar>
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Date: Mon, 22 Apr 2002 13:20:43 -0300
To: djgpp AT delorie DOT com
From: "R. Grela" <rgrela AT ciudad DOT com DOT ar>
Subject: djgpp, nasm and floats
Mime-Version: 1.0
Reply-To: djgpp AT delorie DOT com

Hello everybody!

I'm trying to do some calculations in assembly and return the results to 
djgpp application..
I've no trouble returning integers (32 bits) in eax, but with floating I 
get -NaN (not a number)

global _atest

section .data
    p dd 0.2

section .text
_atest:
     mov eax, [p]
     ret

and receiving as float (I've tryed with double too)
extern "C" float atest();
void main() { float f = atest();  cout << f << endl; }

and I get -NaN

Any idea?

Thanks in advance!

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