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Support HMA functions by giving correct errors codes.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@906
This commit is contained in:
Sjoerd van der Berg 2003-04-13 18:23:00 +00:00
parent ae0b157a7b
commit 72e09d2827
1 changed files with 11 additions and 3 deletions
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14
src/ints/xms.cpp
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@ -50,7 +50,8 @@
#define XMS_ALLOCATE_UMB 0x10
#define XMS_DEALLOCATE_UMB 0x11
#define HIGH_MEMORY_IN_USE 0x92
#define HIGH_MEMORY_NOT_EXIST 0x90
#define HIGH_MEMORY_IN_USE 0x91
#define HIGH_MEMORY_NOT_ALLOCATED 0x93
#define XMS_OUT_OF_SPACE 0xa0
#define XMS_OUT_OF_HANDLES 0xa1
@ -368,6 +369,15 @@ Bitu XMS_Handler(void) {
reg_bx=XMS_DRIVER_VERSION;
reg_dx=0; /* No we don't have HMA */
break;
case XMS_ALLOCATE_HIGH_MEMORY: /* 01 */
reg_ax=0;
reg_bl=HIGH_MEMORY_NOT_EXIST;
break;
case XMS_FREE_HIGH_MEMORY: /* 02 */
reg_ax=0;
reg_bl=HIGH_MEMORY_NOT_EXIST;
break;
case XMS_GLOBAL_ENABLE_A20: /* 03 */
case XMS_LOCAL_ENABLE_A20: /* 05 */
reg_bl = XMS_EnableA20(true);
@ -423,8 +433,6 @@ Bitu XMS_Handler(void) {
reg_bl=0xb1; //No UMB Available
reg_dx=0;
break;
case XMS_ALLOCATE_HIGH_MEMORY: /* 01 */
case XMS_FREE_HIGH_MEMORY: /* 02 */
case XMS_DEALLOCATE_UMB: /* 11 */
LOG(LOG_ERROR|LOG_MISC,"XMS:Unhandled call %2X",reg_ah);
break;