From:	Nate Eldredge <neldredge AT hmc DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Asm -> .cc ?
Date:	26 May 2001 15:38:01 -0700
Organization:	MindSpring Enterprises
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"Rafal Maj" <maj_rafal AT poczta DOT onet DOT pl> writes:

> Hi,
> where can I find some FAQ or DOCs to learn how to translate typical asm code
> to asm syntax that I can use in .cc file for DJGPP ?
> And can someone be so nice to spend some time and write lilte .cc file that
> will use folowing code :
> ======[snip]=======
> WaitVRT         proc near
> 
>                 push    ax
>                 push    dx
>                 mov     dx,3DAh
> WaitVRT1:       in      al,dx
>                 test    al,8
>                 jz      WaitVRT1
> WaitVRT2:       in      al,dx
>                 test    al,8
>                 jnz     WaitVRT2
>                 pop     dx
>                 pop     ax
>                 ret
> 
> WaitVRT         endp

You don't need assembly for this.  All you are doing is reading from a
port, waiting until a certain bit becomes set and then until it
becomes clear.

#include <pc.h>

void waitvrt(void)
{
        while (!(inportb(0x3da) & 8)) ;
        while (inportb(0x3da) & 8) ;
}

-- 

Nate Eldredge
neldredge AT hmc DOT edu

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