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Magnum One
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Magnum One (Mid-American Digital) (Disc Manufacturing).iso
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c_lib.arc
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FLRETDTA.C
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1990-08-09
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/**
*
* Name flretdta -- Return the Disk Transfer Area (DTA) location
*
* Synopsis ercode = flretdta(pdta_ads);
* int ercode DOS function return code
* ADS *pdta_ads Segment, offset address for the DTA
*
* Description This function returns the segment offset address of the
* current DTA. See FLSETDTA.
*
* Returns ercode DOS function return code (always 0).
* pdta_ads Current segment and offset of the DTA
*
* Version 1.1 (C)Copyright Blaise Computing Inc. 1983, 1984
*
**/
struct segads /* Segment,offset address type */
{
unsigned r;
unsigned s;
};
#define ADS struct segads /* Abbreviation */
struct dreg
{
unsigned ax,bx,cx,dx,si,di,ds,es;
};
#define DOSREG struct dreg
int flretdta(pdta_ads)
ADS *pdta_ads;
{
DOSREG dos_reg;
int ercode,utinit(),dos();
utinit(&dos_reg); /* Initialize registers */
dos_reg.ax = 0x2f00; /* DOS function 2F */
ercode = dos(&dos_reg);
pdta_ads->s = dos_reg.es;
pdta_ads->r = dos_reg.bx;
return(ercode);
}