=======================
*/
-unsigned MML_SetupEMS(mminfo_t *mm)
+byte MML_SetupEMS(mminfo_t *mm)
{
- char str[80],str2[10];
- unsigned err;
+ char str[80];//,str2[10];
+ byte err;
boolean errorflag=false;
- union REGS CPURegs;
unsigned int EMSVer = 0;
- byte EMSstatus;
+ //byte EMS_status;
unsigned totalEMSpages,freeEMSpages,EMSpageframe,EMSpagesmapped,EMShandle;
totalEMSpages = freeEMSpages = EMSpageframe = EMSpagesmapped = 0;
mov ah,EMS_STATUS
int EMS_INT // make sure EMS hardware is present
or ah,ah
- //mov [EMSstatus],ah
+ //mov [EMS_status],ah
jnz error
mov ah,EMS_VERSION
mov [EMShandle],dx
jmp End
error:
+ mov err,ah
mov errorflag,1
jmp End
noEMS:
}
if(errorflag==true)
{
- err = CPURegs.h.ah;
+ //err = CPURegs.h.ah;
strcpy(str,"MML_SetupEMS: EMS error 0x");
- itoa(err,str2,16);
- strcpy(str,str2);
- printf("%s\n",str);
+ //itoa(err,str2,16);
+ //strcat(str,&err);
+ //printf("%s\n",str);
+ printf("%s%x\n",str,err);
return err;
}
mm->totalEMSpages=totalEMSpages;
mm->EMSpagesmapped=EMSpagesmapped;
mm->EMShandle=EMShandle;
mm->EMSVer=EMSVer;
- //mm->EMSstatus=EMSstatus;
return 0;
}
mov errorflag,1
ok:
}
- if(errorflag==true) printf("MML_ShutdownEMS: Error freeing EMS!"); //++++ add something
+ if(errorflag==true) printf("MML_ShutdownEMS: Error freeing EMS!\n"); //++++ add something
}
/*
====================
*/
-unsigned MM_MapEMS(mminfo_t *mm)
+byte MM_MapEMS(mminfo_t *mm, mminfotype *mmi)
{
- char str[80],str2[10];
- unsigned err, EMShandle;
+ char str[80];
+ unsigned EMShandle;
+ byte err;
boolean errorflag=false;
int i;
- union REGS CPURegs;
EMShandle=mm->EMShandle;
- for (i=0;i<4/*mm->EMSpagesmapped*/;i++)
+ for (i=0;i<4/*MAPPAGES*/;i++)
{
__asm
{
jnz error
jmp End
error:
+ mov err,ah
mov errorflag,1
End:
}
if(errorflag==true)
{
- err = CPURegs.h.ah;
+ //err = CPURegs.h.ah;
strcpy(str,"MM_MapEMS: EMS error 0x");
- itoa(err,str2,16);
- strcpy(str,str2);
+ //itoa(err,str2,16);
+ //strcat(str,&err);
//printf("%s\n",str);
- printf("FACK! %u\n", err);
+ printf("%s%x\n",str, err);
+ //printf("FACK! %x\n", err);
return err;
}
}
+ mmi->EMSmem = (i)*0x4000lu;
return 0;
}
-/*
-SUB EMS.MapXPages (PhysicalStart, LogicalStart, NumPages, Handle)\r
+byte MM_MapXEMS(mminfo_t *mm, mminfotype *mmi)
+{
+
+//SUB EMS.MapXPages (PhysicalStart, LogicalStart, NumPages, Handle)\r
\r
- 'Maps up to 4 logical EMS pages to physical pages in the page frame, where:\r
- '\r
- 'PhysicalStart = Physical page first logical page is mapped to\r
- 'LogicalStart = First logical page to map\r
- 'NumPages = Number of pages to map (1 to 4)\r
- 'Handle = EMS handle logical pages are allocated to\r
+ //Maps up to 4 logical EMS pages to physical pages in the page frame, where:\r
+ //PhysicalStart = Physical page first logical page is mapped to\r
+ //LogicalStart = First logical page to map\r
+ //NumPages = Number of pages to map (1 to 4)\r
+ //Handle = EMS handle logical pages are allocated to\r
\r
- 'Create a buffer containing the page information\r
- FOR x = 0 TO NumPages - 1\r
- MapInfo$ = MapInfo$ + MKI$(LogicalStart + x) + MKI$(PhysicalStart + x)\r
- NEXT\r
+ /*//Create a buffer containing the page information\r
+// FOR x = 0 TO NumPages - 1\r
+// MapInfo$ = MapInfo$ + MKI$(LogicalStart + x) + MKI$(PhysicalStart + x)\r
+// NEXT*/\r
\r
- Regs.ax = &H5000 'Map the pages in the buffer\r
- Regs.cx = NumPages 'to the pageframe\r
- Regs.dx = Handle\r
- Regs.ds = VARSEG(MapInfo$)\r
- Regs.si = SADD(MapInfo$)\r
- InterruptX &H67, Regs, Regs\r
- EMS.Error = (Regs.ax AND &HFF00&) \ &H100 'Store the status code\r
+// Regs.ax = &H5000 //Map the pages in the buffer\r
+// Regs.cx = NumPages //to the pageframe\r
+// Regs.dx = Handle\r
+// Regs.ds = VARSEG(MapInfo$)\r
+// Regs.si = SADD(MapInfo$)\r
+// InterruptX &H67, Regs, Regs\r
+// EMS.Error = (Regs.ax AND &HFF00&) \ &H100 //Store the status code\r
\r
-END SUB
-*/
-void MM_MapXEMS(mminfo_t *mm)
-{
+//END SUB
+ char str[80];
+ byte err;
+ word EMShandle;
+ boolean errorflag=false;
+ int i;
+ EMShandle=mm->EMShandle;
+ if(mm->EMSVer<0x40)
+ return 5;
+
+ for (i=0;i<MAPPAGES;i++)
+ {
+ __asm
+ {
+ mov ax,EMS_MAPXPAGE
+ mov cx,[i] // logical page
+ mov al,bl // physical page
+ mov dx,[EMShandle] // handle
+ int EMS_INT
+ or ah,ah
+ jnz error
+ jmp End
+ error:
+ mov err,ah
+ mov errorflag,1
+ End:
+ }
+ if(errorflag==true)
+ {
+ //err = CPURegs.h.ah;
+ strcpy(str,"MM_MapXEMS: EMS error 0x");
+ //itoa(err,str2,16);
+ //strcat(str,&err);
+ //printf("%s\n",str);
+ printf("%s%x\n",str, err);
+ //printf("FACK! %x\n", err);
+ return err;
+ }
+ }
+ mmi->EMSmem = (i)*0x4000lu;
+ return 0;
}
//==========================================================================
//
// detect EMS and allocate up to 64K at page frame
//
- printf("EMS!\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
+ printf("EMS1\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
mmi->EMSmem = 0;
for(i = 1;i < __argc;i++)
{
printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
if(MML_CheckForEMS())
{
-printf("EMS1\n");
- MML_SetupEMS(mm); // allocate space
printf("EMS2\n");
+ MML_SetupEMS(mm); // allocate space
+printf("EMS3\n");
printf("\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); //bug!
//TODO: EMS4! AND EMS 3.2 MASSIVE DATA HANDLMENT!
MML_UseSpace(mm->EMSpageframe,(MAPPAGES)*0x4000lu, mm);
-printf("EMS3\n");
- MM_MapEMS(mm); // map in used pages
printf("EMS4\n");
- mmi->EMSmem = (MAPPAGES)*0x4000lu;
+ if(mm->EMSVer<0x40)
+ MM_MapEMS(mm, mmi); // map in used pages
+ else
+ MM_MapXEMS(mm, mmi); // map in used pages
}
//
if(MML_CheckForXMS(mm))
{
printf("XMS!\n");
- //====needs work!
//MML_SetupXMS(mm, mmi); // allocate as many UMBs as possible
}
printf("far freed\n");
free(mm->nearheap);
printf("near freed\n");
+ //hfree(mm->hugeheap);
+ //printf("huge freed\n");
if(MML_CheckForEMS()){ MML_ShutdownEMS(mm); printf("EMS freed\n"); }
if(MML_CheckForXMS(mm)){ MML_ShutdownXMS(mm); printf("XMS freed\n"); }
}
mm->mmrover = mm->mmhead;
else if(mm->mmrover == start)
{
- printf("MM_SetPurge: Block not found!\n");
+ printf("MM_SetPurge: Block not found!");
return;
}
VW_Plot(x,y,15);
if (scan->next && scan->next->start > end+1)
VW_Hlin(x+end+1,x+(scan->next->start-scan->start),y,0); // black = free
-
*/
//****#if 0
}
//****#endif
-//==========================================================================\r
-\r
-/*\r
-=====================\r
-=\r
-= MM_DumpData\r
-=\r
-=====================\r
-*/\r
-\r
-void MM_DumpData(mminfo_t *mm)\r
-{\r
- mmblocktype far *scan,far *best;\r
- long lowest,oldlowest;\r
- word owner;\r
- byte lock,purge;\r
- FILE *dumpfile;\r
-\r
-\r
- free (mm->nearheap);\r
- dumpfile = fopen ("mmdump.txt","w");\r
- if (!dumpfile){\r
- printf("MM_DumpData: Couldn't open MMDUMP.TXT!");
+//==========================================================================
+
+/*
+=====================
+=
+= MM_DumpData
+=
+=====================
+*/
+
+void MM_DumpData(mminfo_t *mm)
+{
+ mmblocktype far *scan,far *best;
+ long lowest,oldlowest;
+ word owner;
+ byte lock,purge;
+ FILE *dumpfile;
+
+
+ free (mm->nearheap);
+ dumpfile = fopen ("mmdump.txt","w");
+ if (!dumpfile){
+ printf("MM_DumpData: Couldn't open MMDUMP.TXT!\n");
return;
- }\r
-\r
- lowest = -1;\r
- do\r
- {\r
- oldlowest = lowest;\r
- lowest = 0xffff;\r
-\r
- scan = mm->mmhead;\r
- while (scan)\r
- {\r
- owner = (word)scan->useptr;\r
-\r
- if (owner && owner<lowest && owner > oldlowest)\r
- {\r
- best = scan;\r
- lowest = owner;\r
- }\r
-\r
- scan = scan->next;\r
- }\r
-\r
- if (lowest != 0xffff)\r
- {\r
- if (best->attributes & PURGEBITS)\r
- purge = 'P';\r
- else\r
- purge = '-';\r
- if (best->attributes & LOCKBIT)\r
- lock = 'L';\r
- else\r
- lock = '-';\r
- fprintf (dumpfile,"0x%p (%c%c) = %u\n"\r
- ,(word)lowest,lock,purge,best->length);\r
- }\r
-\r
- } while (lowest != 0xffff);\r
-\r
- fclose (dumpfile);\r
- printf("MMDUMP.TXT created.");\r
+ }
+
+ lowest = -1;
+ do
+ {
+ oldlowest = lowest;
+ lowest = 0xffff;
+
+ scan = mm->mmhead;
+ while (scan)
+ {
+ owner = (word)scan->useptr;
+
+ if (owner && owner<lowest && owner > oldlowest)
+ {
+ best = scan;
+ lowest = owner;
+ }
+
+ scan = scan->next;
+ }
+
+ if (lowest != 0xffff)
+ {
+ if (best->attributes & PURGEBITS)
+ purge = 'P';
+ else
+ purge = '-';
+ if (best->attributes & LOCKBIT)
+ lock = 'L';
+ else
+ lock = '-';
+ fprintf (dumpfile,"0x%p (%c%c) = %u\n"
+ ,(word)lowest,lock,purge,best->length);
+ }
+
+ } while (lowest != 0xffff);
+
+ fclose (dumpfile);
+ printf("MMDUMP.TXT created.\n");
}
//==========================================================================
void MM_Report(page_t *page, mminfo_t *mm, mminfotype *mmi)
{
- printf("\n");
if(MML_CheckForEMS())
{
- printf("Expanded memory manager present. EMM v%x.%x available\n", mm->EMSVer>>4,mm->EMSVer&0x0F);
+ printf("EMM v%x.%x available\n", mm->EMSVer>>4,mm->EMSVer&0x0F);
printf("totalEMSpages=%u\n", mm->totalEMSpages);
- printf("Page frame @0x%04x\n", mm->freeEMSpages);
+ printf("freeEMSpages=%u\n", mm->freeEMSpages);
printf("EMSpageframe=%x\n", mm->EMSpageframe);
}
if(MML_CheckForXMS(mm)) printf("XMSaddr=%Fp\n", *XMSaddr);
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