Date: Wed, 20 Dec 2000 14:55:54 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: Yoram Hofman <yoram AT htsol DOT com>
cc: djgpp AT delorie DOT com
Subject: Re: BorlandC to GCC translation
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On Wed, 20 Dec 2000, Yoram Hofman wrote:

> Can anybody help to translate this code to GCC:
> {
> union REGS r;
> struct SREGS sr;
> unsigned char *buff;
> 
> buff = farmalloc(0x05);
> 
> r.x.ax = 0xEEEE;
> r.x.bx=0xABCD;
> int86(0x15,&r,&r);
> 
> sr.es  = FP_SEG(buff);
> r.x.bx = FP_OFF(buff);
> r.x.ax = 0xEEEE;
> r.x.di = 0x4444;
> r.x.si = 0xAAAA;
> r.x.cx = 0x05;
> int86x(0x15, &r,&r, &sr);
> }
> (NOTE: values don't matter)
> I read DLGPP help about int86, but in my case I don't know which define 
> I have to choose (NAIVE_DOS_REGS or _BORLANDC_DOS_REGS)  with purpose to 
> transfer to registers my buffer address rightly .

You have read the wrong section in the FAQ.  The one which speaks 
directly about this matter is section 18.2; it also includes an example 
of working code which does something similar.

Section 18.4 explains a bit more how to move data between the transfer 
buffer and your program.

(Be sure to read the latest version of the FAQ, v2/faq230b.zip.)