union REGS CPURegs;
unsigned int EMSVer = 0;
+ 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 [EMS_status],ah
jnz error
mov ah,EMS_VERSION
return 0;
}
+/*
+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
+\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
+\r
+END SUB
+*/
+void MM_MapXEMS(mminfo_t *mm)
+{
+
+}
+
//==========================================================================
/*
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");
+printf("EMS1\n");
MML_SetupEMS(mm); // allocate space
+printf("EMS2\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,(mm->EMSpagesmapped)*0x4000lu, mm);
-//printf("EMS3\n");
+ MML_UseSpace(mm->EMSpageframe,(MAPPAGES)*0x4000lu, mm);
+printf("EMS3\n");
MM_MapEMS(mm); // map in used pages
-//printf("EMS4\n");
- mmi->EMSmem = (mm->EMSpagesmapped)*0x4000lu;
+printf("EMS4\n");
+ mmi->EMSmem = (MAPPAGES)*0x4000lu;
}
//
=====================
*/
-void MM_ShowMemory(mminfo_t *mm)
+void MM_ShowMemory(page_t *page, mminfo_t *mm)
{
mmblocktype huge *scan;
unsigned color,temp;
long end,owner;
+ word chx,chy;
char scratch[160],str[16];
//**** VW_SetDefaultColors();
end = -1;
-//CA_OpenDebug ();
+CA_OpenDebug ();
+
+ chx=0;
+ chy=0;
while(scan)
{
color = 12; // red = locked
if(scan->start<=end)
{
- printf("\nMM_ShowMemory: Memory block order currupted!\n");
+ //printf(");
+ write(debughandle,"\nMM_ShowMemory: Memory block order currupted!\n",strlen("\nMM_ShowMemory: Memory block order currupted!\n"));
+ //modexprint(&page, chx, chy, 1, 0, 24, "\nMM_ShowMemory: Memory block order currupted!\n");
return;
}
end = scan->start+scan->length-1;
+ modexhlin(page, scan->start, (unsigned)end, chy, color);
//++++ VW_Hlin(scan->start,(unsigned)end,0,color);
+
//++++ VW_Plot(scan->start,0,15);
+ modexClearRegion(page, scan->start, chy, 4, 4, 15);
if(scan->next->start > end+1)
//++++ VW_Hlin(end+1,scan->next->start,0,0); // black = free
+ modexhlin(page, end+1,scan->next->start, chy, 9);
//****#if 0
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!
-strcpy(scratch,"Location:");
+strcpy(scratch,"Seg:");
ultoa (scan->start,str,16);
strcat (scratch,str);
strcat (scratch,"\tSize:");
ultoa (owner,str,16);
strcat (scratch,str);
strcat (scratch,"\n");
-//++++write (debughandle,scratch,strlen(scratch));
-fprintf(stdout, "%s", scratch);
+write(debughandle,scratch,strlen(scratch));
+//modexprint(page, chx, chy, 1, 0, 24, &scratch);
+chy+=4;
+//fprintf(stdout, "%s", scratch);
//****#endif
scan = scan->next;
}
-//CA_CloseDebug ();
+CA_CloseDebug ();
//++++mh IN_Ack();
//**** VW_SetLineWidth(64);
}
//****#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
+ unsigned owner;\r
+ char 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!");
+ 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 = (unsigned)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
+ ,(unsigned)lowest,lock,purge,best->length);\r
+ }\r
+\r
+ } while (lowest != 0xffff);\r
+\r
+ fclose (dumpfile);\r
+ printf("MMDUMP.TXT created.");\r
+}
+
//==========================================================================
=====================
*/
-void MM_Report(mminfo_t *mm, mminfotype *mmi)
+void MM_Report(page_t *page, mminfo_t *mm, mminfotype *mmi)
{
if(MML_CheckForEMS())
{
- printf("EMM %x available\n", mm->EMSVer);
+ printf("EMM v%x.%x available\n", mm->EMSVer>>4,mm->EMSVer&0x0F);
printf("totalEMSpages=%u\n", mm->totalEMSpages);
printf("freeEMSpages=%u\n", mm->freeEMSpages);
printf("EMSpageframe=%x\n", mm->EMSpageframe);
projects / 16.git / blobdiff