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Fix Resize memory. (handle information didn't have the resized size.) Fix error codes of move_memory. Implement 8f. This fixes E.EXE (an editor).

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2622
This commit is contained in:
Peter Veenstra 2006-05-07 20:00:05 +00:00
parent 458d7e5dee
commit 42c95e065b
1 changed files with 9 additions and 5 deletions
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14
src/ints/xms.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: xms.cpp,v 1.41 2006-04-22 15:25:45 c2woody Exp $ */
/* $Id: xms.cpp,v 1.42 2006-05-07 20:00:05 qbix79 Exp $ */
#include <stdlib.h>
#include <string.h>
@ -55,6 +55,7 @@
#define XMS_QUERY_ANY_FREE_MEMORY 0x88
#define XMS_ALLOCATE_ANY_MEMORY 0x89
#define XMS_GET_EMB_HANDLE_INFORMATION_EXT 0x8e
#define XMS_RESIZE_ANY_EXTENDED_MEMORY_BLOCK 0x8f
#define XMS_FUNCTION_NOT_IMPLEMENTED 0x80
#define HIGH_MEMORY_NOT_EXIST 0x90
@ -151,8 +152,7 @@ Bitu XMS_FreeMemory(Bitu handle)
return 0;
};
Bitu XMS_MoveMemory(PhysPt bpt)
{
Bitu XMS_MoveMemory(PhysPt bpt) {
/* Read the block with mem_read's */
Bitu length=mem_readd(bpt+offsetof(XMS_MemMove,length));
Bitu src_handle=mem_readw(bpt+offsetof(XMS_MemMove,src_handle));
@ -180,10 +180,10 @@ Bitu XMS_MoveMemory(PhysPt bpt)
}
if (dest_handle) {
if (InvalidHandle(dest_handle)) {
return 0xa3; /* Dest Handle invalid */
return 0xa5; /* Dest Handle invalid */
}
if (dest.offset>=(xms_handles[dest_handle].size*1024U)) {
return 0xa4; /* Dest Offset invalid */
return 0xa6; /* Dest Offset invalid */
}
if (length>xms_handles[dest_handle].size*1024U-dest.offset) {
return 0xa7; /* Length invalid */
@ -235,6 +235,7 @@ Bitu XMS_ResizeMemory(Bitu handle, Bitu newSize)
if (xms_handles[handle].locked>0) return XMS_BLOCK_LOCKED;
Bitu pages=newSize/4 + ((newSize & 3) ? 1 : 0);
if (MEM_ReAllocatePages(xms_handles[handle].mem,pages,true)) {
xms_handles[handle].size = newSize;
return 0;
} else return XMS_OUT_OF_SPACE;
}
@ -323,6 +324,9 @@ Bitu XMS_Handler(void) {
case XMS_GET_EMB_HANDLE_INFORMATION: /* 0e */
SET_RESULT(XMS_GetHandleInformation(reg_dx,reg_bh,reg_bl,reg_dx));
break;
case XMS_RESIZE_ANY_EXTENDED_MEMORY_BLOCK: /* 0x8f */
if(reg_ebx > reg_bx) LOG_MSG("64MB memory limit!");
//fall through
case XMS_RESIZE_EXTENDED_MEMORY_BLOCK: /* 0f */
SET_RESULT(XMS_ResizeMemory(reg_dx, reg_bx));
break;