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From: | Martin Str|mberg <ams AT speedy DOT ludd DOT luth DOT se> |
Subject: | Re: djgpp, nasm and floats |
Newsgroups: | comp.os.msdos.djgpp |
References: | <4 DOT 3 DOT 2 DOT 7 DOT 2 DOT 20020422131623 DOT 00bd4110 AT mail DOT ciudad DOT com DOT ar> |
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Message-ID: | <1019493463.722131@queeg.ludd.luth.se> |
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Date: | 22 Apr 2002 16:37:43 GMT |
Lines: | 30 |
NNTP-Posting-Date: | 22 Apr 2002 16:37:43 GMT |
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To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
R. Grela <rgrela AT ciudad DOT com DOT ar> wrote: : 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? Yes. Floating point values are not returned in EAX I guess. Right, MartinS
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