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fix dos exec "load but don't run" subfunction (japheth)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3020
This commit is contained in:
Sebastian Strohhäcker 2007-10-19 19:39:27 +00:00
parent 391377b585
commit a7e852daac
1 changed files with 6 additions and 2 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 1.61 2007-08-09 19:52:33 c2woody Exp $ */
/* $Id: dos_execute.cpp,v 1.62 2007-10-19 19:39:27 c2woody Exp $ */
#include <string.h>
#include <ctype.h>
@ -412,14 +412,18 @@ bool DOS_Execute(char * name,PhysPt block_pt,Bit8u flags) {
}
if (flags==LOAD) {
SaveRegisters();
DOS_PSP callpsp(dos.psp());
/* Save the SS:SP on the PSP of calling program */
callpsp.SetStack(RealMakeSeg(ss,reg_sp));
reg_sp+=18;
/* Switch the psp's */
dos.psp(pspseg);
DOS_PSP newpsp(dos.psp());
dos.dta(RealMake(newpsp.GetSegment(),0x80));
block.exec.initsssp = sssp;
/* First word on the stack is the value ax should contain on startup */
real_writew(RealSeg(sssp-2),RealOff(sssp-2),0xffff);
block.exec.initsssp = sssp-2;
block.exec.initcsip = csip;
block.SaveData();
return true;