valter/dosbox-staging
1
0
Fork 0
Code Releases Activity

Start stuff with an REFT instead of IRET. Fixes CyberRace.(Beta 2)

Browse source 
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3260
This commit is contained in:
Peter Veenstra 2009-01-14 22:16:00 +00:00
parent 4e8f79fd9e
commit f47d48ba07
4 changed files with 33 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/dos/dos.cpp
View file

@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos.cpp,v 1.114 2008-12-11 09:16:31 qbix79 Exp $ */
/* $Id: dos.cpp,v 1.115 2009-01-14 22:16:00 qbix79 Exp $ */
#include <stdlib.h>
#include <string.h>
@ -1041,7 +1041,7 @@ static Bitu DOS_21Handler(void) {
break;
};
return CBRET_NONE;
};
}
static Bitu DOS_20Handler(void) {
@ -1091,8 +1091,13 @@ public:
callback[0].Install(DOS_20Handler,CB_IRET,"DOS Int 20");
callback[0].Set_RealVec(0x20);
callback[1].Install(DOS_21Handler,CB_IRET_STI,"DOS Int 21");
callback[1].Install(DOS_21Handler,CB_INT21,"DOS Int 21");
callback[1].Set_RealVec(0x21);
//Pseudo code for int 21
// sti
// callback
// iret
// retf <- int 21 4c jumps here to mimic a retf Cyber
callback[2].Install(DOS_25Handler,CB_RETF,"DOS Int 25");
callback[2].Set_RealVec(0x25);