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set registers on executable startup

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2315
This commit is contained in:
Sebastian Strohhäcker 2005-09-19 08:25:38 +00:00
parent b5336f32d1
commit 3932cb886b
1 changed files with 5 additions and 3 deletions
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8
src/dos/dos_execute.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos_execute.cpp,v 1.48 2005-07-22 10:03:20 c2woody Exp $ */
/* $Id: dos_execute.cpp,v 1.49 2005-09-19 08:25:38 c2woody Exp $ */
#include <string.h>
#include <ctype.h>
@ -395,8 +395,10 @@ bool DOS_Execute(char * name,PhysPt block_pt,Bit8u flags) {
should not modify the flags (e.g. IOPL in v86 mode) */
mem_writew(SegPhys(ss)+reg_sp+4,reg_flags&(~FLAG_CF));
/* Setup the rest of the registers */
reg_ax=0;reg_si=0x100;
reg_cx=reg_dx=reg_bx=reg_di=0;
reg_ax=reg_bx=0;reg_cx=0xff;
reg_dx=pspseg;
reg_si=RealOff(csip);
reg_di=RealOff(sssp);
reg_bp=0x91c; /* DOS internal stack begin relict */
SegSet16(ds,pspseg);SegSet16(es,pspseg);
#if C_DEBUG