boolean MML_CheckForEMS(void)
{
boolean emmcfems;
- char emmname[] = "EMMXXXX0";
+ static char emmname[] = "EMMXXXX0"; //fix by andrius4669
// mov dx,OFFSET emmname
__asm {
- LEA DX, emmname //fix by andrius4669
+ //LEA DX, emmname //fix by andrius4669
+ mov dx,OFFSET emmname //fix by andrius4669
mov ax,0x3d00
int 0x21 // try to open EMMXXXX0 device
jc error
union REGS CPURegs;
unsigned int EMSVer = 0;
+ byte EMSstatus;
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
jnz error
mov ah,EMS_VERSION
mov [freeEMSpages],bx
or bx,bx
jz noEMS // no EMS at all to allocate
-
+ //EXPAND DONG!!!!
+ cmp [EMSVer],0x40
+ jb low
+ cmp bx,[freeEMSpages]
+ jle getpages
+ mov bx,[freeEMSpages]
+ jmp getpages
+
+low:
cmp bx,4
jle getpages // there is only 1,2,3,or 4 pages
mov bx,4 // we can't use more than 4 pages
mm->EMSpagesmapped=EMSpagesmapped;
mm->EMShandle=EMShandle;
mm->EMSVer=EMSVer;
+ //mm->EMSstatus=EMSstatus;
return 0;
}
union REGS CPURegs;
EMShandle=mm->EMShandle;
- for (i=0;i<mm->EMSpagesmapped;i++)
+ for (i=0;i<4/*mm->EMSpagesmapped*/;i++)
{
__asm
{
strcpy(str,"MM_MapEMS: EMS error 0x");
itoa(err,str2,16);
strcpy(str,str2);
- printf("%s\n",str);
+ //printf("%s\n",str);
+ printf("FACK! %u\n", err);
return err;
}
}
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)
+{
+
+}
+
//==========================================================================
/*
{
unsigned base,size;
+getmemory:
__asm
{
mov ax,0x4310
int 0x2f
mov [WORD PTR XMSaddr],bx
mov [WORD PTR XMSaddr+2],es // function pointer to XMS driver
- }
-getmemory:
- __asm
- {
+
mov ah,XMS_ALLOCUMB
mov dx,0xffff // try for largest block possible
+ //mov ax,dx // Set available Kbytes.
call [DWORD PTR XMSaddr]
or ax,ax
jnz gotone
mov [size],dx
done:
}
+ printf("base=%u ", base); printf("size=%u\n", size);
MML_UseSpace(base,size, mm);
mmi->XMSmem += size*16;
mm->UMBbase[mm->numUMBs] = base;
======================
*/
-void MML_UseSpace(unsigned segstart, unsigned seglength, mminfo_t *mm)
+void MML_UseSpace(/*d*/word segstart, dword seglength, mminfo_t *mm)
{
mmblocktype huge *scan,huge *last;
- unsigned oldend;
- //++++if(mm->EMSVer)
- long extra;
+ word segm;
+ dword oldend;
+ dword extra;
scan = last = mm->mmhead;
mm->mmrover = mm->mmhead; // reset rover to start of memory
scan = scan->next;
}
+ //find out how many blocks it spans!
+ if(seglength>0xffffu)
+ {
+// segm=seglength/0x4000u;
+ segm=seglength/0xffffu;
+ }
+ else segm=1;
+
+ //++++emsver stuff!
+ if(segm>1/*extra>0xfffflu*/)
+ {
+ /*__asm
+ {
+ push ds
+ mov ax,ds
+ inc ax
+ mov ds,ax
+ }*/
+
+
+//MML_UseSpace(?segstart?, ?length?, mm);
+
+ /*__asm
+ {
+ pop ds
+ }*/
+ //printf("MML_UseSpace: Segment spans two blocks!\n");
+ }
+
//
// take the given range out of the block
//
oldend = scan->start + scan->length;
extra = oldend - (segstart+seglength);
- //++++emsver stuff!
- if(extra < 0)
- {
- printf("MML_UseSpace: Segment spans two blocks!");
- return;
- }
+printf("segm=%u ", segm);
+printf("ex=%lu ", extra);
+printf("start+seglen=%lu ", segstart+seglength);
+printf("len=%u ", scan->length);
+printf("segsta=%x ", segstart);
+printf("seglen=%lu\n", seglength);
+//segu:
+//++++todo: linked list of segment!
+//printf("segm=%lu\n", segm);
if(segstart == scan->start)
{
last->next = scan->next; // unlink block
else
scan->length = segstart-scan->start; // shorten block
+// segm--;
+
if(extra > 0)
{
MM_GetNewBlock(mm);
mm->mmnew->start = segstart+seglength;
mm->mmnew->length = extra;
mm->mmnew->attributes = LOCKBIT;
- }
+ }//else if(segm>0) goto segu;
}
scan = scan->next;
}
- printf("MM_ClearBlock: No purgable blocks!");
+ printf("MM_ClearBlock: No purgable blocks!\n");
}
mm->mmnew->next = NULL;
mm->mmrover = mm->mmhead;
+// farlen=_bios_memsize()*1024;
//
// get all available near conventional memory segments
_nheapgrow();
length=_memavl();
start = (void huge *)(mm->nearheap = malloc(length));
-
length -= 16-(FP_OFF(start)&15);
length -= SAVENEARHEAP;
seglength = length / 16; // now in paragraphs
segstart = FP_SEG(start)+(FP_OFF(start)+15)/16;
MML_UseSpace(segstart,seglength, mm);
mmi->nearheap = length;
+ //printf("near heap ok!\n");
//
// get all available far conventional memory segments
//---- length=farcoreleft();
_fheapgrow();
length=_memavl();
- start = mm->farheap = halloc(length, 1);
+ start = mm->farheap = halloc(length, sizeof(byte));
//start = mm->farheap = _fmalloc(length);
length -= 16-(FP_OFF(start)&15);
length -= SAVEFARHEAP;
MML_UseSpace(segstart,seglength, mm);
mmi->farheap = length;
mmi->mainmem = mmi->nearheap + mmi->farheap;
+ //printf("far heap ok!\n");
//
// 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!
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");
+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!
- MML_UseSpace(mm->EMSpageframe,mm->EMSpagesmapped*0x400, mm);
-//printf("EMS3\n");
+ //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 = mm->EMSpagesmapped*0x4000l;
+printf("EMS4\n");
+ mmi->EMSmem = (MAPPAGES)*0x4000lu;
}
//
if(US_CheckParm(__argv[i],ParmStringsexmm) == 0)
goto xmsskip; // param NOXMS
}
-// 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!
+ 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_CheckForXMS(mm))
{
-//printf("XMS!\n");
- MML_SetupXMS(mm, mmi); // allocate as many UMBs as possible
+ 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"); }
}
if(!scan)
{
- printf("MM_FreePtr: Block not found!");
+ printf("MM_FreePtr: Block not found!\n");
return;
}
mm->mmrover = mm->mmhead;
else if(mm->mmrover == start)
{
- printf("MM_SetPurge: Block not found!");
+ printf("MM_SetPurge: Block not found!\n");
return;
}
=====================
*/
-void MM_ShowMemory(mminfo_t *mm)
+void MM_ShowMemory(page_t *page, mminfo_t *mm)
{
mmblocktype huge *scan;
- unsigned color,temp;//, i;
+ word color,temp;
long end,owner;
- char scratch[80],str[10];
+ word chx,chy;
+ byte scratch[160],str[16];
//**** VW_SetDefaultColors();
//**** VW_SetLineWidth(40);
end = -1;
-//CA_OpenDebug ();
+CA_OpenDebug ();
- while (scan)
+ chx=0;
+ chy=0;
+
+ while(scan)
{
if(scan->attributes & PURGEBITS)
color = 5; // dark purple = purgable
color = 12; // red = locked
if(scan->start<=end)
{
- printf("MM_ShowMemory: Memory block order currupted!");
+ //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;
+ chy = scan->start/320;
+ chx = scan->start%320;
+ //modexhlin(page, scan->start, (unsigned)end, chy, color);
+ //for(chx=scan->start;chx+4>=(word)end;chx+=4)
+ //{
+ modexClearRegion(page, chx, chy, 4, 4, color);
+ //}
+
//++++ VW_Hlin(scan->start,(unsigned)end,0,color);
+
//++++ VW_Plot(scan->start,0,15);
+ modexClearRegion(page, chx, chy, 4, 4, 15);
if(scan->next->start > end+1)
//++++ VW_Hlin(end+1,scan->next->start,0,0); // black = free
+ //for(chx=scan->next->start;chx+4>=(word)end+1;chx+=4)
+ //{
+ chx+=scan->next->start;
+ modexClearRegion(page, chx, chy, 4, 4, 2);
+ //}
+ //modexhlin(page, end+1,scan->next->start, chy, 0);
+
+/*
+ end = scan->length-1;
+ y = scan->start/320;
+ x = scan->start%320;
+ VW_Hlin(x,x+end,y,color);
+ 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
-printf("Location:");
-printf("%x\t", scan->start);
-strcpy (scratch,"Size:");
-ltoa ((long)scan->length*16,str,10);
+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,"Seg:");
+ultoa (scan->start,str,16);
+strcat (scratch,str);
+strcat (scratch,"\tSize:");
+ltoa ((dword)scan->length*16,str,10);
strcat (scratch,str);
strcat (scratch,"\tOwner:0x");
owner = (unsigned)scan->useptr;
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
+ 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!");
+ 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
+}
+
//==========================================================================
dword MM_UnusedMemory(mminfo_t *mm)
{
- unsigned free;
+ dword free;
mmblocktype huge *scan;
free = 0;
dword MM_TotalFree(mminfo_t *mm)
{
- unsigned free;
+ dword free;
mmblocktype huge *scan;
free = 0;
=====================
*/
-void MM_Report(mminfo_t *mm, mminfotype *mmi)
+void MM_Report(page_t *page, mminfo_t *mm, mminfotype *mmi)
{
+ printf("\n");
if(MML_CheckForEMS())
{
- printf("EMM %x available\n", mm->EMSVer);
+ printf("Expanded memory manager present. 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("Page frame @0x%04x\n", mm->freeEMSpages);
printf("EMSpageframe=%x\n", mm->EMSpageframe);
}
- if(MML_CheckForXMS(mm)) printf("XMSaddr=%x\n", *XMSaddr);
+ if(MML_CheckForXMS(mm)) printf("XMSaddr=%Fp\n", *XMSaddr);
printf("near=%lu\n", mmi->nearheap);
printf("far=%lu\n", mmi->farheap);
printf("EMSmem=%lu\n", mmi->EMSmem);
x->next=mm->mmfree;
mm->mmfree=x;
}
+
+void MM_seguin(void)
+{
+ __asm
+ {
+ push ds
+ mov ax,ds
+ inc ax
+ mov ds,ax
+ }
+}
+
+void MM_segude(void)
+{
+ __asm
+ {
+ pop ds
+ }
+}
+
+/*
+pull data from far and put it into ds var
+mov ax,es:si
+mov x,ax
+*/
+/*
+ss stack segment
+sp top of stack
+bp bottem of stack
+*/