Category : Linux Files
Archive   : UPC12BS1.ZIP
Filename : GETDTA.C

 
Output of file : GETDTA.C contained in archive : UPC12BS1.ZIP
/*--------------------------------------------------------------------*/
/* g e t d t a . c */
/* */
/* Get and set disk transfer address in MS C 6.0 */
/* */
/* Changes and compilation copyright (c) 1989-1993, */
/* Andrew H. Derbyshire */
/* */
/* Barry Schwartz rewrote the */
/* getdta function into something that works. 3/7/92 */
/*--------------------------------------------------------------------*/

/*--------------------------------------------------------------------*/
/* C run-time library include files */
/*--------------------------------------------------------------------*/

#include
#include

/*--------------------------------------------------------------------*/
/* UUPC/extended include files */
/*--------------------------------------------------------------------*/

#include "lib.h"
#include "getdta.h"

/*--------------------------------------------------------------------*/
/* s e t d t a */
/* */
/* Set disk transfer address. */
/*--------------------------------------------------------------------*/

void setdta( char far *dtaptr )
{
union REGS inregs, outregs;
struct SREGS segregs;

/* set DTA address to our buffer */
inregs.h.ah = 0x1a;
segregs.ds = FP_SEG(dtaptr);
inregs.x.dx = FP_OFF(dtaptr);
intdosx(&inregs, &outregs, &segregs);
} /* setdta */

/*--------------------------------------------------------------------*/
/* g e t d t a */
/* */
/* Get disk transfer address. */
/*--------------------------------------------------------------------*/

char far *getdta( void )
{
/* In Quick C 2.0, a function written entirely in assembly
* language can freely alter AX, BX, CX, DX, ES, and flags.
* The return value should be put in DS:AX. */

_asm \
{
/* Execute a "Get DTA" service. */
mov ah,2FH
int 21H

/* Move the result from (ES:BX) to (DX:AX) so it will act
* as the return value for the function. */
mov ax,es
mov dx,ax
mov ax,bx
}
} /* getdta */


  3 Responses to “Category : Linux Files
Archive   : UPC12BS1.ZIP
Filename : GETDTA.C
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/