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
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
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)
+{
+
+}
+
//==========================================================================
/*
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("EMS1\n");
MML_SetupEMS(mm); // allocate space
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);
+ //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*0x4000l;
+ mmi->EMSmem = (mm->EMSpagesmapped)*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");
+ //MML_SetupXMS(mm, mmi); // allocate as many UMBs as possible
}
//
void MM_ShowMemory(mminfo_t *mm)
{
mmblocktype huge *scan;
- unsigned color,temp;//, i;
+ unsigned color,temp;
long end,owner;
- char scratch[80],str[10];
+ char scratch[160],str[16];
//**** VW_SetDefaultColors();
//**** VW_SetLineWidth(40);
//CA_OpenDebug ();
- while (scan)
+ 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("\nMM_ShowMemory: Memory block order currupted!\n");
return;
}
end = scan->start+scan->length-1;
//++++ VW_Hlin(end+1,scan->next->start,0,0); // black = free
//****#if 0
-printf("Location:");
-printf("%x\t", scan->start);
-strcpy (scratch,"Size:");
+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:");
+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");
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;
printf("freeEMSpages=%u\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
+*/
projects / 16.git / blobdiff