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
=======================
*/
-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 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
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;
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<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);
- printf("%s\n",str);
+ //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;
+}
+
+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
+ //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
+ 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;
}
void MML_UseSpace(/*d*/word segstart, dword seglength, mminfo_t *mm)
{
mmblocktype huge *scan,huge *last;
+ word segm;
dword oldend;
- //----/*d*/word fat=0;
dword extra;
scan = last = mm->mmhead;
mm->mmrover = mm->mmhead; // reset rover to start of memory
- scan->segm=1;
- //----scan->segmlen=seglength;
//
// search for the block that contains the range of segments
scan = scan->next;
}
- //find out how many blocks it span!
- if(seglength>0xfffflu)
+ //find out how many blocks it spans!
+ if(seglength>0xffffu)
{
- scan->segm=seglength/0xfffflu;
+// segm=seglength/0x4000u;
+ segm=seglength/0xffffu;
}
+ else segm=1;
-//
-// take the given range out of the block
-//
- oldend = scan->start + scan->length;
- extra = oldend - (segstart+seglength);
//++++emsver stuff!
- if(extra>0xfffflu)
+ if(segm>1/*extra>0xfffflu*/)
{
/*__asm
{
inc ax
mov ds,ax
}*/
-printf("segm=%u ", scan->segm);
-printf("ex=%lu ", extra);
-printf("len=%u ", scan->length);
-printf("segsta=%u ", segstart);
-printf("seglen=%lu\n", seglength);
+
//MML_UseSpace(?segstart?, ?length?, mm);
//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);
+
+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);
void MM_Startup(mminfo_t *mm, mminfotype *mmi)
{
int i;
- dword length;//,farlen;
+ dword length;
void huge *start;
unsigned segstart,seglength,endfree;
MM_GetNewBlock(mm);
mm->mmhead = mm->mmnew; // this will allways be the first node
mm->mmnew->start = 0;
- mm->mmnew->length = 0xffff; //todo: mm make it fucking massive as fuck!~
+ mm->mmnew->length = 0xffff;
mm->mmnew->attributes = LOCKBIT;
mm->mmnew->next = NULL;
mm->mmrover = mm->mmhead;
_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();
- //length-=farlen;
- start = mm->farheap = halloc(length, sizeof(dword));
+ 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!
+ 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");
+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,(mm->EMSpagesmapped)*0x4000lu, mm);
-//printf("EMS3\n");
- MM_MapEMS(mm); // map in used pages
-//printf("EMS4\n");
- mmi->EMSmem = (mm->EMSpagesmapped)*0x4000lu;
+ MML_UseSpace(mm->EMSpageframe,(MAPPAGES)*0x4000lu, mm);
+printf("EMS4\n");
+ 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");
- MML_SetupXMS(mm, mmi); // allocate as many UMBs as possible
+ //MML_SetupXMS(mm, mmi); // allocate as many UMBs as possible
}
//
if(!scan)
{
- printf("MM_FreePtr: Block not found!");
+ printf("MM_FreePtr: 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[160],str[16];
+ word chx,chy;
+ byte scratch[160],str[16];
//**** VW_SetDefaultColors();
//**** VW_SetLineWidth(40);
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;
+ 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("\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);
//==========================================================================
+/*
+=====================
+=
+= 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;
+ }
+
+ 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(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