From:	beppu AT rigel DOT oac DOT uci DOT edu (John Beppu)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: NASM
Date:	5 Jan 1997 09:33:39 GMT
Organization:	University of California, Irvine
Lines:	37
Message-ID:	<5anshj$ijc@news.service.uci.edu>
References:	<199701060350 DOT EAA06726 AT math DOT amu DOT edu DOT pl>
NNTP-Posting-Host:	rigel.oac.uci.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

>> Thanks, I already got NASM from one of SimTel mirrors. It seems like
>> a really good way to use old .asm code with djgpp, but I got a
>> problem: it doesn't seem to recognize "mov byte ptr". What am I
>> doing wrong? Oh, another thing, how do I define stack size in my asm



	This is something I like to do using CPP+NASM.

#define b	byte
#define w	word
#define d	dword


		mov	eax,d [edi+ecx*2+0x010]
		add	edx,b 30	

	/* if your constant is betweeen +127 and -128, then
	   be sure to let NASM know.  If the instruction
	   supports it, the byte-sized constant will be sign-
	   extended into a full 16bit or 32bit value. 

	This results in a size optimization.  The size of the
	instruction "add edx,30" was reduced by 3 bytes just
	by telling NASM that 30 is a valid signed char.

	Turbo Assembler would make this optimization without
	being asked.

	Be sure you run CPP with the -P option.  

		cpp -P <src> <dst>
		nasm -f coff <src>
	*/

-- 
  beppu AT uci DOT edu .............................................................

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