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cpu updates (privileged instructions, trapflag handling)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2275
This commit is contained in:
Sebastian Strohhäcker 2005-08-15 13:43:44 +00:00
parent 85850ccc22
commit b48eceebe7
12 changed files with 1352 additions and 109 deletions
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14
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 1.41 2005-07-07 19:53:02 qbix79 Exp $ */
/* $Id: ems.cpp,v 1.42 2005-08-15 13:43:44 c2woody Exp $ */
#include <string.h>
#include <stdlib.h>
@ -729,8 +729,8 @@ static Bitu INT67_Handler(void) {
/* Load tables and initialize segment registers */
CPU_LGDT(new_gdt_limit, new_gdt_base);
CPU_LIDT(new_idt_limit, new_idt_base);
CPU_LLDT(new_ldt);
CPU_LTR(new_tr);
if (CPU_LLDT(new_ldt)) LOG_MSG("VCPI:Could not load LDT with %x",new_ldt);
if (CPU_LTR(new_tr)) LOG_MSG("VCPI:Could not load TR with %x",new_tr);
CPU_SetSegGeneral(ds,0);
CPU_SetSegGeneral(es,0);
@ -796,8 +796,8 @@ static Bitu VCPI_PM_Handler() {
/* Load descriptor table registers */
CPU_LGDT(0xff, vcpi.private_area+0x0000);
CPU_LIDT(0x7ff, vcpi.private_area+0x2000);
CPU_LLDT(0x08);
CPU_LTR(0x10);
if (CPU_LLDT(0x08)) LOG_MSG("VCPI:Could not load LDT");
if (CPU_LTR(0x10)) LOG_MSG("VCPI:Could not load TR");
reg_flags&=(~FLAG_NT);
reg_esp+=8; // skip interrupt return information
@ -1107,8 +1107,8 @@ public:
CPU_SET_CRX(0, 1);
CPU_LGDT(0xff, vcpi.private_area+0x0000);
CPU_LIDT(0x7ff, vcpi.private_area+0x2000);
CPU_LLDT(0x08);
CPU_LTR(0x10);
if (CPU_LLDT(0x08)) LOG_MSG("VCPI:Could not load LDT");
if (CPU_LTR(0x10)) LOG_MSG("VCPI:Could not load TR");
CPU_Push32(SegValue(gs));
CPU_Push32(SegValue(fs));