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limit VCPI support to JEMM games

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2539
This commit is contained in:
Sebastian Strohhäcker 2006-03-12 20:31:49 +00:00
parent 763aef7778
commit 2a9ea0299f
1 changed files with 8 additions and 3 deletions
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11
src/ints/ems.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: ems.cpp,v 1.46 2006-02-18 14:45:12 qbix79 Exp $ */
/* $Id: ems.cpp,v 1.47 2006-03-12 20:31:49 c2woody Exp $ */
#include <string.h>
#include <stdlib.h>
@ -608,8 +608,13 @@ static Bitu INT67_Handler(void) {
} else {
switch (reg_al) {
case 0x00: /* VCPI Installation Check */
reg_ah=EMM_NO_ERROR;
reg_bx=0x100;
if (((reg_cx==0) && (reg_di=0x0012)) || (cpu.pmode && (reg_flags & FLAG_VM))) {
/* JEMM detected or already in v86 mode */
reg_ah=EMM_NO_ERROR;
reg_bx=0x100;
} else {
reg_ah=EMM_FUNC_NOSUP;
}
break;
case 0x01: { /* VCPI Get Protected Mode Interface */
Bit16u ct;