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xms Works but it is quick and dirty and reliese on older C code with _REG defs and...
[proj16/16.git] / src / lib / 16_mm.c
old mode 100644 (file)
new mode 100755 (executable)
index 24f78c5..51b4925
@@ -47,6 +47,11 @@ Open Watcom port by sparky4
 
 */
 #include "src/lib/16_mm.h"
+#include "src/lib/16_ca.h"
+#pragma hdrstop
+
+#pragma warn -pro
+#pragma warn -use
 
 /*
 =============================================================================
@@ -84,9 +89,7 @@ boolean MML_CheckForEMS(void)
 {
        boolean emmcfems;
        static char     emmname[] = "EMMXXXX0"; //fix by andrius4669
-//             mov     dx,OFFSET emmname
        __asm {
-               //LEA   DX, emmname     //fix by andrius4669
                mov     dx,OFFSET emmname       //fix by andrius4669
                mov     ax,0x3d00
                int     0x21            // try to open EMMXXXX0 device
@@ -116,17 +119,28 @@ boolean MML_CheckForEMS(void)
                //
                mov     emmcfems,1
                jmp End
+#ifdef __BORLANDC__
+       }
+#endif
                error:
+#ifdef __BORLANDC__
+       __asm {
+#endif
                //
                // EMS is bad
                //
                mov     emmcfems,0
+#ifdef __BORLANDC__
+       }
+#endif
                End:
+#ifdef __WATCOMC__
        }
+#endif
        return(emmcfems);
 }
 
-
+#ifndef __16_PM__
 /*
 ======================
 =
@@ -135,20 +149,18 @@ boolean MML_CheckForEMS(void)
 =======================
 */
 
-byte MML_SetupEMS(mminfo_t *mm)
+byte MML_SetupEMS(global_game_variables_t *gvar)
 {
-       char    str[80];//,str2[10];
+       byte    str[160];
        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;
+       unsigned        totalEMSpages,freeEMSpages,EMSPageFrame,EMSpagesmapped,EMSHandle;
+       totalEMSpages = freeEMSpages = EMSPageFrame = EMSpagesmapped = 0;
 
-       __asm
-               {
+       __asm {
                mov     ah,EMS_STATUS
                int     EMS_INT                                         // make sure EMS hardware is present
                or      ah,ah
@@ -167,7 +179,7 @@ byte MML_SetupEMS(mminfo_t *mm)
                int     EMS_INT                                         // find the page frame address
                or      ah,ah
                jnz     error
-               mov     [EMSpageframe],bx
+               mov     [EMSPageFrame],bx
 
                mov     ah,EMS_GETPAGES
                int     EMS_INT                                         // find out how much EMS is there
@@ -184,43 +196,61 @@ byte MML_SetupEMS(mminfo_t *mm)
                jle     getpages
                mov     bx,[freeEMSpages]
                jmp     getpages
-
-low:
+#ifdef __BORLANDC__
+       }
+#endif
+       low:
+#ifdef __BORLANDC__
+       __asm {
+#endif
                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
-
-getpages:
+#ifdef __BORLANDC__
+       }
+#endif
+       getpages:
+#ifdef __BORLANDC__
+       __asm {
+#endif
                mov     [EMSpagesmapped],bx
                mov     ah,EMS_ALLOCPAGES                       // allocate up to 64k of EMS
                int     EMS_INT
                or      ah,ah
                jnz     error
-               mov     [EMShandle],dx
+               mov     [EMSHandle],dx
                jmp End
-error:
+#ifdef __BORLANDC__
+       }
+#endif
+       error:
+#ifdef __BORLANDC__
+       __asm {
+#endif
                mov     err,ah
                mov     errorflag,1
                jmp End
+#ifdef __BORLANDC__
+       }
+#endif
 noEMS:
 End:
+#ifdef __WATCOMC__
        }
+#endif
        if(errorflag==true)
        {
-               //err = CPURegs.h.ah;
-               strcpy(str,"MML_SetupEMS: EMS error 0x");
-               //itoa(err,str2,16);
-               //strcat(str,&err);
-               //printf("%s\n",str);
-               printf("%s%x\n",str,err);
+               strcpy(str,"MM_SetupEMS: EMS error ");
+               MM_EMSerr(str, err);
+               printf("%s\n",str);
                return err;
        }
-       mm->totalEMSpages=totalEMSpages;
-       mm->freeEMSpages=freeEMSpages;
-       mm->EMSpageframe=EMSpageframe;
-       mm->EMSpagesmapped=EMSpagesmapped;
-       mm->EMShandle=EMShandle;
-       mm->EMSVer=EMSVer;
+       gvar->mm.totalEMSpages=totalEMSpages;
+       gvar->mm.freeEMSpages=freeEMSpages;
+       gvar->mm.EMSPageFrame=EMSPageFrame;
+       gvar->mm.EMSpagesmapped=EMSpagesmapped;
+       gvar->mm.EMSHandle=EMSHandle;
+       gvar->mm.EMSVer=EMSVer;
        return 0;
 }
 
@@ -233,24 +263,29 @@ End:
 =======================
 */
 
-void MML_ShutdownEMS(mminfo_t *mm)
+void MML_ShutdownEMS(global_game_variables_t *gvar)
 {
        boolean errorflag=false;
-       unsigned EMShandle=mm->EMShandle;
+       unsigned EMSHandle=gvar->mm.EMSHandle;
 
-       if(!EMShandle)
+       if(!EMSHandle)
                return;
-       __asm
-       {
+       __asm {
                mov     ah,EMS_FREEPAGES
-               mov     dx,[EMShandle]
+               mov     dx,[EMSHandle]
                int     EMS_INT
                or      ah,ah
                jz      ok
                mov     errorflag,1
+#ifdef __BORLANDC__
+       }
+#endif
                ok:
+#ifdef __WATCOMC__
        }
-       if(errorflag==true) printf("MML_ShutdownEMS: Error freeing EMS!");      //++++ add something
+#endif
+       if(errorflag==true)
+               Quit("MML_ShutdownEMS: Error freeing EMS!\n");  //++++ add something
 }
 
 /*
@@ -265,115 +300,131 @@ void MML_ShutdownEMS(mminfo_t *mm)
 ====================
 */
 
-byte MM_MapEMS(mminfo_t *mm)
+byte MM_MapEMS(global_game_variables_t *gvar)
 {
-       char    str[80];//,str2[10];
-       unsigned        /*err, */EMShandle;
+       byte    str[160];
+       unsigned        EMSHandle;
        byte err;
        boolean errorflag=false;
        int     i;
-       union REGS CPURegs;
-       EMShandle=mm->EMShandle;
+       EMSHandle=gvar->mm.EMSHandle;
 
-       for (i=0;i<MAPPAGES;i++)
+       for (i=0;i<4/*MAPPAGES*/;i++)
        {
-               __asm
-               {
+               __asm {
                        mov     ah,EMS_MAPPAGE
                        mov     bx,[i]                  // logical page
                        mov     al,bl                   // physical page
-                       mov     dx,[EMShandle]  // handle
+                       mov     dx,[EMSHandle]  // handle
                        int     EMS_INT
                        or      ah,ah
                        jnz     error
                        jmp End
+#ifdef __BORLANDC__
+               }
+#endif
                        error:
+#ifdef __BORLANDC__
+               __asm {
+#endif
                        mov     err,ah
                        mov     errorflag,1
+#ifdef __BORLANDC__
+               }
+#endif
                        End:
+#ifdef __WATCOMC__
                }
+#endif
                if(errorflag==true)
                {
-                       //err = CPURegs.h.ah;
-                       strcpy(str,"MM_MapEMS: 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);
+                       strcpy(str,"MM_MapEMS: EMS error ");
+                       MM_EMSerr(str, err);
+                       printf("%s\n",str);
                        return err;
                }
        }
+       gvar->mmi.EMSmem = (i)*0x4000lu;
        return 0;
 }
 
-byte MM_MapXEMS(mminfo_t *mm)
+byte MM_MapXEMS(global_game_variables_t *gvar)
 {
+//SUB EMS.MapXPages (PhysicalStart, LogicalStart, NumPages, Handle)
+
+       //Maps up to 4 logical EMS pages to physical pages in the page frame, where:
+       //PhysicalStart = Physical page first logical page is mapped to
+       //LogicalStart  = First logical page to map
+       //NumPages      = Number of pages to map (1 to 4)
+       //Handle        = EMS handle logical pages are allocated to
+
+  /*//Create a buffer containing the page information
+//  FOR x = 0 TO NumPages - 1
+//    MapInfo$ = MapInfo$ + MKI$(LogicalStart + x) + MKI$(PhysicalStart + x)
+//  NEXT*/
+
+//  Regs.ax = 0x5000                           //Map the pages in the buffer
+//  Regs.cx = NumPages                         //to the pageframe
+//  Regs.dx = Handle
+//  Regs.ds = VARSEG(MapInfo$)
+//  Regs.si = SADD(MapInfo$)
+//  InterruptX 0x67, Regs, Regs
+//     EMS.Error = (Regs.ax AND 0xFF00&) \ 0x100  //Store the status code
 
-//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];//,str2[10];
-       unsigned        EMShandle;
+       byte    str[160];
        byte err;
+       word    EMSHandle;
        boolean errorflag=false;
        int     i;
-       union REGS CPURegs;
-       EMShandle=mm->EMShandle;
+       EMSHandle=gvar->mm.EMSHandle;
+
+       if(gvar->mm.EMSVer<0x40)
+               return 5;
 
        for (i=0;i<MAPPAGES;i++)
        {
-               __asm
-               {
-                       mov     ah,EMS_MAPPAGE
-                       mov     bx,[i]                  // logical page
+               __asm {
+                       mov     ah,EMS_MAPXPAGE
+                       mov     cx,[i]                  // logical page
                        mov     al,bl                   // physical page
-                       mov     dx,[EMShandle]  // handle
+                       mov     dx,[EMSHandle]  // handle
                        int     EMS_INT
                        or      ah,ah
                        jnz     error
                        jmp End
+#ifdef __BORLANDC__
+               }
+#endif
                        error:
+#ifdef __BORLANDC__
+               __asm {
+#endif
                        mov     err,ah
                        mov     errorflag,1
+#ifdef __BORLANDC__
+               }
+#endif
                        End:
+#ifdef __WATCOMC__
                }
+#endif
                if(errorflag==true)
                {
-                       //err = CPURegs.h.ah;
-                       strcpy(str,"MM_MapEMS: EMS error 0x");
+                       //strcpy(str,"MM_MapXEMS: EMS error 0x");
+                       strcpy(str,"MM_MapXEMS: EMS error ");
                        //itoa(err,str2,16);
-                       //strcat(str,&err);
-                       //printf("%s\n",str);
-                       printf("%s%x\n",str, err);
+                       MM_EMSerr(str, err);
+                       printf("%s\n",str);
+                       //printf("%s%x\n",str, err);
                        //printf("FACK! %x\n", err);
                        return err;
                }
        }
+       gvar->mmi.EMSmem = (i)*0x4000lu;
        return 0;
-*/
 }
-
+#endif
 //==========================================================================
 
 /*
@@ -386,25 +437,28 @@ char      str[80];//,str2[10];
 =======================
 */
 
-boolean MML_CheckForXMS(mminfo_t *mm)
+boolean MML_CheckForXMS(void)
 {
        boolean errorflag=false;
-       mm->numUMBs = 0;
 
-       __asm
-       {
+       __asm {
                mov     ax,0x4300
                int     0x2f                            // query status of installed diver
                cmp     al,0x80
                je      good
                mov     errorflag,1
+#ifdef __BORLANDC__
+       }
+#endif
                good:
+#ifdef __WATCOMC__
        }
+#endif
        if(errorflag==true) return false;
        else return true;
 }
 
-
+#ifndef __16_PM__
 /*
 ======================
 =
@@ -415,18 +469,19 @@ boolean MML_CheckForXMS(mminfo_t *mm)
 =======================
 */
 
-void MML_SetupXMS(mminfo_t *mm, mminfotype *mmi)
+void MML_SetupXMS(global_game_variables_t *gvar)
 {
-       unsigned        base,size;
+       word    base,size;
 
-getmemory:
-       __asm
-       {
+
+       __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.
@@ -441,18 +496,28 @@ getmemory:
                call    [DWORD PTR XMSaddr]             // DX holds largest available UMB
                or      ax,ax
                jz      done                                            // another error...
-
-gotone:
+#ifdef __BORLANDC__
+       }
+#endif
+               gotone:
+#ifdef __BORLANDC__
+       __asm {
+#endif
                mov     [base],bx
                mov     [size],dx
-done:
+#ifdef __BORLANDC__
+       }
+#endif
+               done:
+#ifdef __WATCOMC__
        }
-       printf("base=%u ", base); printf("size=%u\n", size);
-       MML_UseSpace(base,size, mm);
-       mmi->XMSmem += size*16;
-       mm->UMBbase[mm->numUMBs] = base;
-       mm->numUMBs++;
-       if(mm->numUMBs < MAXUMBS)
+#endif
+//     printf("base=%u ", base); printf("size=%u\n", size);
+       MML_UseSpace(base,size, gvar);
+       gvar->mmi.XMSmem += size*16;
+       gvar->mm.UMBbase[gvar->mm.numUMBs] = base;
+       gvar->mm.numUMBs++;
+       if(gvar->mm.numUMBs < MAXUMBS)
                goto getmemory;
 }
 
@@ -465,23 +530,22 @@ done:
 ======================
 */
 
-void MML_ShutdownXMS(mminfo_t *mm)
+void MML_ShutdownXMS(global_game_variables_t *gvar)
 {
        int     i;
        unsigned        base;
 
-       for (i=0;i<mm->numUMBs;i++)
+       for (i=0;i<gvar->mm.numUMBs;i++)
        {
-               base = mm->UMBbase[i];
-               __asm
-               {
+               base = gvar->mm.UMBbase[i];
+               __asm {
                        mov     ah,XMS_FREEUMB
                        mov     dx,[base]
                        call    [DWORD PTR XMSaddr]
                }
        }
 }
-
+#endif
 //==========================================================================
 
 /*
@@ -496,15 +560,16 @@ void MML_ShutdownXMS(mminfo_t *mm)
 ======================
 */
 
-void MML_UseSpace(/*d*/word segstart, dword seglength, mminfo_t *mm)
+/*void MML_UseSpace(word segstart, dword seglength, global_game_variables_t *gvar)
 {
-       mmblocktype huge *scan,huge *last;
-       word            segm;
-       dword   oldend;
+       //huge mmblocktype huge *scan,huge *last;
+       word            segm=1;
+       word    oldend;
+       dword           segmlen;
        dword           extra;
 
-       scan = last = mm->mmhead;
-       mm->mmrover = mm->mmhead;               // reset rover to start of memory
+       scan = last = gvar->mm.mmhead;
+       gvar->mm.mmrover = gvar->mm.mmhead;             // reset rover to start of memory
 
 //
 // search for the block that contains the range of segments
@@ -515,71 +580,124 @@ void MML_UseSpace(/*d*/word segstart, dword seglength, mminfo_t *mm)
                scan = scan->next;
        }
 
-       //find out how many blocks it spans!
-       if(seglength>0xffffu)
+//
+// take the given range out of the block
+//
+       oldend = scan->start + scan->length;
+       extra = oldend - (segstart+seglength);
+
+       segmlen=extra;
+
+       //++++emsver stuff!
+       if(segm>1)/// || extra>=0x10000lu)
+       //if(extra>0xfffflu)
+       {
+               scan->blob=segm;
+
+               //MML_UseSpace(segstart, seglength, gvar);
+
+               printf("MML_UseSpace: Segment spans two blocks!\n");
+       //}
+       printf("segm=%u         ", segm);
+       printf("ex=%lu  ", extra);
+       printf("old=%u  ", oldend);
+       printf("start+seglen=%lu\n", segstart+seglength);
+       printf("segsta=%x       ", segstart);
+       printf("len=%lu ", scan->length);
+       printf("seglen=%lu      ", seglength);
+       printf("segmlen=%lu\n", segmlen);
+       }
+//++++todo: linked list of segment!
+       if(segstart == scan->start)
        {
-//             segm=seglength/0x4000u;
-               segm=seglength/0xffffu;
+               last->next = scan->next;                        // unlink block
+               FREEBLOCK(scan);
+               scan = last;
        }
-       else segm=1;
+       else
+               scan->length = segstart-scan->start;    // shorten block
 
-       //++++emsver stuff!
-       if(segm>1/*extra>0xfffflu*/)
+       if(extra > 0)
        {
-               /*__asm
-               {
-                       push    ds
-                       mov     ax,ds
-                       inc             ax
-                       mov     ds,ax
-               }*/
+               GETNEWBLOCK;
+               gvar->mm.mmnew->useptr = NULL;
+
+               gvar->mm.mmnew->next = scan->next;
+               scan->next = gvar->mm.mmnew;
+               gvar->mm.mmnew->start = segstart+seglength;
+               gvar->mm.mmnew->length = extra;
+               gvar->mm.mmnew->attributes = LOCKBIT;
+       }//else if(segm>0) goto segu;
 
+}*/
+void MML_UseSpace(word segstart, dword seglength, global_game_variables_t *gvar)
+{
+       mmblocktype far *scan,far *last;
+       word    oldend;
+       sdword          extra;
+       //word segm=1;
 
-//MML_UseSpace(?segstart?, ?length?, mm);
+       scan = last = gvar->mm.mmhead;
+       gvar->mm.mmrover = gvar->mm.mmhead;             // reset rover to start of memory
 
-               /*__asm
-               {
-                       pop ds
-               }*/
-               //printf("MML_UseSpace: Segment spans two blocks!\n");
+//
+// search for the block that contains the range of segments
+//
+       while (scan->start+scan->length < segstart)
+       {
+               last = scan;
+               scan = scan->next;
        }
 
 //
+// find out how many blocks it spans!
+//
+       /*for(;seglength>=0x10000;seglength-=0xFFFF)
+       {
+               //printf("      seglen=%lu\n", segmlen);
+               segm++;
+       }*/
+
+//
 // 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);
+       extra = oldend - (segstart+((unsigned)seglength));
+       if (extra < 0)
+       {
+               printf("========================================\n");
+               printf("start=%x        ", scan->start);
+               printf("old=%u  ", oldend);
+               printf("start+seglen=%lu\n", segstart+seglength);
+               printf("segsta=%x       ", segstart);
+               printf("len=%lu ", scan->length);
+               printf("seglen=%lu      ", seglength);
+               printf("\n");
+               printf("MML_UseSpace: Segment spans two blocks! %d\n", extra);
+               printf("========================================\n");
+               //return;
+       }
 
-//segu:
-//++++todo: linked list of segment!
-//printf("segm=%lu\n", segm);
-       if(segstart == scan->start)
+       if (segstart == scan->start)
        {
                last->next = scan->next;                        // unlink block
-               MM_FreeBlock(scan, mm);
+               FREEBLOCK(scan);
                scan = last;
        }
        else
                scan->length = segstart-scan->start;    // shorten block
 
-//     segm--;
-
-       if(extra > 0)
+       if (extra > 0)
        {
-               MM_GetNewBlock(mm);
-               mm->mmnew->next = scan->next;
-               scan->next = mm->mmnew;
-               mm->mmnew->start = segstart+seglength;
-               mm->mmnew->length = extra;
-               mm->mmnew->attributes = LOCKBIT;
-       }//else if(segm>0) goto segu;
+               GETNEWBLOCK;
+               gvar->mm.mmnew->useptr = NULL;
+
+               gvar->mm.mmnew->next = scan->next;
+               scan->next = gvar->mm.mmnew;
+               gvar->mm.mmnew->start = segstart+seglength;
+               gvar->mm.mmnew->length = extra;
+               gvar->mm.mmnew->attributes = LOCKBIT;
+       }
 
 }
 
@@ -595,17 +713,18 @@ printf("seglen=%lu\n", seglength);
 ====================
 */
 
-void MML_ClearBlock(mminfo_t *mm)
+void MML_ClearBlock(global_game_variables_t *gvar)
 {
-       mmblocktype huge *scan,huge *last;
+       //huge mmblocktype huge *scan,huge *last;
+       mmblocktype far *scan,far *last;
 
-       scan = mm->mmhead->next;
+       scan = gvar->mm.mmhead->next;
 
        while(scan)
        {
                if(!(scan->attributes&LOCKBIT) && (scan->attributes&PURGEBITS))
                {
-                       MM_FreePtr(scan->useptr, mm);
+                       MM_FreePtr(scan->useptr, gvar);
                        return;
                }
                scan = scan->next;
@@ -628,124 +747,170 @@ void MML_ClearBlock(mminfo_t *mm)
 ===================
 */
 
-void MM_Startup(mminfo_t *mm, mminfotype *mmi)
+void MM_Startup(global_game_variables_t *gvar)
 {
        int i;
-       dword length;
-       void huge       *start;
-       unsigned        segstart,seglength,endfree;
+       //dword length,seglength;
+       dword length; word seglength;
+       //huge void huge        *start;
+       void far        *start;
+       word    segstart;//,endfree;
+       //memptr *peeonself;
 
-       if(mm->mmstarted)
-               MM_Shutdown(mm);
+       if(gvar->mm.mmstarted)
+               MM_Shutdown(gvar);
+
+       gvar->mm.mmstarted = true;
+       gvar->mm.bombonerror = true;
 
-       mm->mmstarted = true;
-       mm->bombonerror = true;
 //
 // set up the linked list (everything in the free list;
 //
-       mm->mmhead = NULL;
-       mm->mmfree = &(mm->mmblocks[0]);
+       gvar->mm.mmhead = NULL;
+       gvar->mm.mmfree = &(gvar->mm.mmblocks[0]);
        for(i=0;i<MAXBLOCKS-1;i++)
        {
-               mm->mmblocks[i].next = &(mm->mmblocks[i+1]);
+               gvar->mm.mmblocks[i].next = &(gvar->mm.mmblocks[i+1]);
        }
-       mm->mmblocks[i].next = NULL;
+       gvar->mm.mmblocks[i].next = NULL;
 
 //
 // locked block of all memory until we punch out free space
 //
-       MM_GetNewBlock(mm);
-       mm->mmhead = mm->mmnew;                         // this will allways be the first node
-       mm->mmnew->start = 0;
-       mm->mmnew->length = 0xffff;
-       mm->mmnew->attributes = LOCKBIT;
-       mm->mmnew->next = NULL;
-       mm->mmrover = mm->mmhead;
-
-//     farlen=_bios_memsize()*1024;
-
+       GETNEWBLOCK;
+       gvar->mm.mmhead = gvar->mm.mmnew;                               // this will allways be the first node
+       gvar->mm.mmnew->start = 0;
+       gvar->mm.mmnew->length = 0xffff;
+       gvar->mm.mmnew->attributes = LOCKBIT;
+       gvar->mm.mmnew->next = NULL;
+       //gvar->mm.mmnew->useptr = peeonself;
+       gvar->mm.mmrover = gvar->mm.mmhead;
+
+       //printf("              %x\n", peeonself);
+       //printf("              %x\n", *peeonself);
 //
 // get all available near conventional memory segments
 //
-//---- length=coreleft();
+#ifdef __WATCOMC__
        _nheapgrow();
-       length=_memavl();
-       start = (void huge *)(mm->nearheap = malloc(length));
+       length=(dword)_memavl();//(dword)GetFreeSize();
+       //huge start = (void huge *)(gvar->mm.nearheap = _nmalloc(length));
+       start = (void far *)(gvar->mm.nearheap = _nmalloc(length));
+#endif
+#ifdef __BORLANDC__
+       length=coreleft();
+       //huge start = (void huge *)(gvar->mm.nearheap = malloc(length));
+       start = (void far *)(gvar->mm.nearheap = malloc(length));
+#endif
        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");
+       MML_UseSpace(segstart,seglength, gvar);
+       gvar->mmi.nearheap = length;
+       //printf("start=%Fp     segstart=%x     seglen=%lu      len=%lu\n", start, segstart, seglength, length);
 
 //
 // get all available far conventional memory segments
 //
-//---- length=farcoreleft();
+       //printf("_FARCORELEFT                          %lu\n", _FCORELEFT);
+#ifdef __WATCOMC__
        _fheapgrow();
-       length=_memavl();
-       start = mm->farheap = halloc(length, sizeof(byte));
-       //start = mm->farheap = _fmalloc(length);
+       length=_FCORELEFT;//_fcoreleft();//(dword)GetFarFreeSize();//0xffffUL*4UL;
+#endif
+#ifdef __BORLANDC__
+       printf("farcoreleft()                           %lu\n", farcoreleft());
+       printf("(farcoreleft()+32)-_FCORELEFT   %d\n", (sword)((farcoreleft()+32)-_FCORELEFT));
+       length=farcoreleft();//_fcoreleft();//(dword)GetFarFreeSize();//0xffffUL*4UL;
+#endif
+       start = gvar->mm.farheap = _fmalloc(length);
+       //start = gvar->mm.farheap = halloc(length, 1);
        length -= 16-(FP_OFF(start)&15);
        length -= SAVEFARHEAP;
        seglength = length / 16;                        // now in paragraphs
        segstart = FP_SEG(start)+(FP_OFF(start)+15)/16;
-       MML_UseSpace(segstart,seglength, mm);
-       mmi->farheap = length;
-       mmi->mainmem = mmi->nearheap + mmi->farheap;
-       //printf("far heap ok!\n");
+       MML_UseSpace(segstart,seglength, gvar);
+       gvar->mmi.farheap = length;
+       //printf("start=%Fp     segstart=%x     seglen=%lu      len=%lu\n", start, segstart, seglength, length);
 
+       gvar->mmi.mainmem = gvar->mmi.nearheap + gvar->mmi.farheap;
 
+#ifndef __16_PM__
+       if(!dbg_debugpm) {
 //
 // 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++)
+       gvar->mmi.EMSmem = 0;
+//goto emsskip;        //0000
+       for(i = 1;i <
+#ifdef __WATCOMC__
+       __argc
+#endif
+#ifdef __BORLANDC__
+       _argc
+#endif
+       ;i++)
        {
-               if(US_CheckParm(__argv[i],ParmStringsexmm) == 0)
+               if(US_CheckParm(
+#ifdef __WATCOMC__
+       __argv[i]
+#endif
+#ifdef __BORLANDC__
+       _argv[i]
+#endif
+                       ,ParmStringsexmm) == 0)
                        goto emsskip;                           // param NOEMS
        }
-       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");
-               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;
+               MML_SetupEMS(gvar);                                     // allocate space
+               //16_PM: EMS4! AND EMS 3.2 MASSIVE DATA HANDLMENT!
+               MML_UseSpace(gvar->mm.EMSPageFrame,(MAPPAGES)*0x4000lu, gvar);
+               //if(gvar->pm.emm.EMSVer<0x40)
+                       MM_MapEMS(gvar);                                        // map in used pages
+               //else
+                       //MM_MapXEMS(gvar);                                     // map in used pages
        }
 
 //
 // detect XMS and get upper memory blocks
 //
 emsskip:
-       mmi->XMSmem = 0;
-       for(i = 1;i < __argc;i++)
+       gvar->mmi.XMSmem = 0;
+goto xmsskip;//0000
+       for(i = 1;i <
+#ifdef __WATCOMC__
+       __argc
+#endif
+#ifdef __BORLANDC__
+       _argc
+#endif
+       ;i++)
        {
-               if(US_CheckParm(__argv[i],ParmStringsexmm) == 0)
+               if(US_CheckParm(
+#ifdef __WATCOMC__
+       __argv[i]
+#endif
+#ifdef __BORLANDC__
+       _argv[i]
+#endif
+                       ,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!
-       if(MML_CheckForXMS(mm))
+       if(MML_CheckForXMS())
        {
-               printf("XMS!\n");
-               //MML_SetupXMS(mm, mmi);                                        // allocate as many UMBs as possible
+               MML_SetupXMS(gvar);                                     // allocate as many UMBs as possible
        }
 
+       }
+#endif
 //
 // allocate the misc buffer
 //
 xmsskip:
-       mm->mmrover = mm->mmhead;               // start looking for space after low block
+       gvar->mm.mmrover = gvar->mm.mmhead;             // start looking for space after low block
 
-       MM_GetPtr(&(mm->bufferseg),BUFFERSIZE, mm, mmi);
+       MM_GetPtr(&(gvar->mm.bufferseg),BUFFERSIZE, gvar);
 }
 
 //==========================================================================
@@ -760,19 +925,26 @@ xmsskip:
 ====================
 */
 
-void MM_Shutdown(mminfo_t *mm)
+void MM_Shutdown(global_game_variables_t *gvar)
 {
-       if(!(mm->mmstarted))
+       if(!(gvar->mm.mmstarted))
                return;
 
-       _ffree(mm->farheap);
-       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"); }
+       _ffree(gvar->mm.farheap);//     printf("                far freed\n");
+#ifdef __WATCOMC__
+       _nfree(gvar->mm.nearheap);//    printf("                near freed\n");
+#endif
+#ifdef __BORLANDC__
+       free(gvar->mm.nearheap);//      printf("                near freed\n");
+#endif
+#ifdef __DEBUG__
+       if(!dbg_debugpm) {
+#endif
+       if(MML_CheckForEMS()){ MML_ShutdownEMS(gvar); }//printf("               EMS freed\n"); }
+       if(MML_CheckForXMS()){ MML_ShutdownXMS(gvar); }//printf("               XMS freed\n"); }
+#ifdef __DEBUG__
+       }
+#endif
 }
 
 //==========================================================================
@@ -787,53 +959,64 @@ void MM_Shutdown(mminfo_t *mm)
 ====================
 */
 
-void MM_GetPtr(memptr *baseptr,dword size, mminfo_t *mm, mminfotype *mmi)
+void MM_GetPtr (memptr *baseptr, dword size, global_game_variables_t *gvar)
 {
-       mmblocktype huge *scan,huge *lastscan,huge *endscan,huge *purge,huge *next;
+       //huge mmblocktype huge *scan,huge *lastscan,huge *endscan,huge *purge,huge *next;
+       mmblocktype far *scan,far *lastscan,far *endscan,far *purge,far *next;
        int                     search;
        unsigned        needed,startseg;
 
        needed = (size+15)/16;          // convert size from bytes to paragraphs
 
-       MM_GetNewBlock(mm);                             // fill in start and next after a spot is found
-       mm->mmnew->length = needed;
-       mm->mmnew->useptr = baseptr;
-       mm->mmnew->attributes = BASEATTRIBUTES;
-
-       for(search = 0; search<3; search++)
+       GETNEWBLOCK;                            // fill in start and next after a spot is found
+       gvar->mm.mmnew->length = needed;
+       gvar->mm.mmnew->useptr = baseptr;
+       //if(gvar->mm.mmnew->useptr==NULL){
+#ifdef __DEBUG_MM__
+               printf("MM_GetPtr\n");
+               //%04x
+               printf("        baseptr=%Fp     ", baseptr); printf("useptr=%Fp\n", gvar->mm.mmnew->useptr);
+               printf("        *baseptr=%Fp    ", *baseptr); printf("*useptr=%Fp\n", *(gvar->mm.mmnew->useptr));
+               printf("        &baseptr=%Fp    ", &baseptr); printf("&useptr=%Fp\n", &(gvar->mm.mmnew->useptr));
+#endif
+       //exit(-5); }
+       gvar->mm.mmnew->attributes = BASEATTRIBUTES;
+
+//tryagain:
+       for (search = 0; search<3; search++)
        {
        //
        // first search:        try to allocate right after the rover, then on up
        // second search:       search from the head pointer up to the rover
        // third search:        compress memory, then scan from start
-               if(search == 1 && mm->mmrover == mm->mmhead)
+               if (search == 1 && gvar->mm.mmrover == gvar->mm.mmhead)
                        search++;
 
-               switch(search)
+               switch (search)
                {
                case 0:
-                       lastscan = mm->mmrover;
-                       scan = mm->mmrover->next;
+                       lastscan = gvar->mm.mmrover;
+                       scan = gvar->mm.mmrover->next;
                        endscan = NULL;
                        break;
                case 1:
-                       lastscan = mm->mmhead;
-                       scan = mm->mmhead->next;
-                       endscan = mm->mmrover;
+                       lastscan = gvar->mm.mmhead;
+                       scan = gvar->mm.mmhead->next;
+                       endscan = gvar->mm.mmrover;
                        break;
                case 2:
-                       MM_SortMem(mm);
-                       lastscan = mm->mmhead;
-                       scan = mm->mmhead->next;
+                       MM_SortMem (gvar);
+                       lastscan = gvar->mm.mmhead;
+                       scan = gvar->mm.mmhead->next;
                        endscan = NULL;
                        break;
                }
 
                startseg = lastscan->start + lastscan->length;
 
-               while(scan != endscan)
+               while (scan != endscan)
                {
-                       if(scan->start - startseg >= needed)
+                       if (scan->start - startseg >= needed)
                        {
                        //
                        // got enough space between the end of lastscan and
@@ -841,23 +1024,23 @@ void MM_GetPtr(memptr *baseptr,dword size, mminfo_t *mm, mminfotype *mmi)
                        // and allocate the new block
                        //
                                purge = lastscan->next;
-                               lastscan->next = mm->mmnew;
-                               mm->mmnew->start = *(unsigned *)baseptr = startseg;
-                               mm->mmnew->next = scan;
-                               while(purge != scan)
+                               lastscan->next = gvar->mm.mmnew;
+                               gvar->mm.mmnew->start = *(unsigned *)baseptr = startseg;
+                               gvar->mm.mmnew->next = scan;
+                               while ( purge != scan)
                                {       // free the purgable block
                                        next = purge->next;
-                                       MM_FreeBlock(purge, mm);
+                                       FREEBLOCK(purge);
                                        purge = next;           // purge another if not at scan
                                }
-                               mm->mmrover = mm->mmnew;
+                               gvar->mm.mmrover = gvar->mm.mmnew;
                                return; // good allocation!
                        }
 
                        //
                        // if this block is purge level zero or locked, skip past it
                        //
-                       if((scan->attributes & LOCKBIT)
+                       if ( (scan->attributes & LOCKBIT)
                                || !(scan->attributes & PURGEBITS) )
                        {
                                lastscan = scan;
@@ -869,10 +1052,18 @@ void MM_GetPtr(memptr *baseptr,dword size, mminfo_t *mm, mminfotype *mmi)
                }
        }
 
-       if (mm->bombonerror)
-               printf(OUT_OF_MEM_MSG,(size-mmi->nearheap));
+       if (gvar->mm.bombonerror)
+       {
+#ifdef __WATCOMC__
+               //heapdump();
+#endif
+               printf(OUT_OF_MEM_MSG,(size-gvar->mmi.nearheap));
+               printf("for stability reasons the program will shut down! wwww\n");
+               MM_Shutdown(gvar);
+               exit(-1);
+       }
        else
-               mm->mmerror = true;
+               gvar->mm.mmerror = true;
 }
 
 //==========================================================================
@@ -887,15 +1078,16 @@ void MM_GetPtr(memptr *baseptr,dword size, mminfo_t *mm, mminfotype *mmi)
 ====================
 */
 
-void MM_FreePtr(memptr *baseptr, mminfo_t *mm)
+void MM_FreePtr(memptr *baseptr, global_game_variables_t *gvar)
 {
-       mmblocktype huge *scan,huge *last;
+       //huge mmblocktype huge *scan,huge *last;
+       mmblocktype far *scan,far *last;
 
-       last = mm->mmhead;
+       last = gvar->mm.mmhead;
        scan = last->next;
 
-       if(baseptr == mm->mmrover->useptr)      // removed the last allocated block
-               mm->mmrover = mm->mmhead;
+       if(baseptr == gvar->mm.mmrover->useptr) // removed the last allocated block
+               gvar->mm.mmrover = gvar->mm.mmhead;
 
        while(scan->useptr != baseptr && scan)
        {
@@ -911,7 +1103,7 @@ void MM_FreePtr(memptr *baseptr, mminfo_t *mm)
 
        last->next = scan->next;
 
-       MM_FreeBlock(scan, mm);
+       FREEBLOCK(scan);
 }
 //==========================================================================
 
@@ -925,31 +1117,33 @@ void MM_FreePtr(memptr *baseptr, mminfo_t *mm)
 =====================
 */
 
-void MM_SetPurge(memptr *baseptr, int purge, mminfo_t *mm)
+
+void MM_SetPurge(memptr *baseptr, int purge, global_game_variables_t *gvar)
 {
-       mmblocktype huge *start;
+       //huge mmblocktype huge *start;
+       mmblocktype far *start;
 
-       start = mm->mmrover;
+       start = gvar->mm.mmrover;
 
        do
        {
-               if(mm->mmrover->useptr == baseptr)
+               if(gvar->mm.mmrover->useptr == baseptr)
                        break;
 
-               mm->mmrover = mm->mmrover->next;
+               gvar->mm.mmrover = gvar->mm.mmrover->next;
 
-               if(!mm->mmrover)
-                       mm->mmrover = mm->mmhead;
-               else if(mm->mmrover == start)
+               if(!gvar->mm.mmrover)
+                       gvar->mm.mmrover = gvar->mm.mmhead;
+               else if(gvar->mm.mmrover == start)
                {
-                       printf("MM_SetPurge: Block not found!");
-                       return;
+                       Quit("MM_SetPurge: Block not found!");
+                       //return;
                }
 
        } while(1);
 
-       mm->mmrover->attributes &= ~PURGEBITS;
-       mm->mmrover->attributes |= purge;
+       gvar->mm.mmrover->attributes &= ~PURGEBITS;
+       gvar->mm.mmrover->attributes |= purge;
 }
 
 //==========================================================================
@@ -964,31 +1158,32 @@ void MM_SetPurge(memptr *baseptr, int purge, mminfo_t *mm)
 =====================
 */
 
-void MM_SetLock(memptr *baseptr, boolean locked, mminfo_t *mm)
+void MM_SetLock(memptr *baseptr, boolean locked, global_game_variables_t *gvar)
 {
-       mmblocktype huge *start;
+       //huge mmblocktype huge *start;
+       mmblocktype far *start;
 
-       start = mm->mmrover;
+       start = gvar->mm.mmrover;
 
        do
        {
-               if(mm->mmrover->useptr == baseptr)
+               if(gvar->mm.mmrover->useptr == baseptr)
                        break;
 
-               mm->mmrover = mm->mmrover->next;
+               gvar->mm.mmrover = gvar->mm.mmrover->next;
 
-               if(!mm->mmrover)
-                       mm->mmrover = mm->mmhead;
-               else if(mm->mmrover == start)
+               if(!gvar->mm.mmrover)
+                       gvar->mm.mmrover = gvar->mm.mmhead;
+               else if(gvar->mm.mmrover == start)
                {
-                       printf("MM_SetLock: Block not found!");
-                       return;
+                       Quit("MM_SetLock: Block not found!");
+                       //return;
                }
 
        } while(1);
 
-       mm->mmrover->attributes &= ~LOCKBIT;
-       mm->mmrover->attributes |= locked*LOCKBIT;
+       gvar->mm.mmrover->attributes &= ~LOCKBIT;
+       gvar->mm.mmrover->attributes |= locked*LOCKBIT;
 }
 
 //==========================================================================
@@ -1003,9 +1198,10 @@ void MM_SetLock(memptr *baseptr, boolean locked, mminfo_t *mm)
 =====================
 */
 
-void MM_SortMem(mminfo_t *mm)
+void MM_SortMem(global_game_variables_t *gvar)
 {
-       mmblocktype huge *scan,huge *last,huge *next;
+       //huge mmblocktype huge *scan,huge *last,huge *next;
+       mmblocktype far *scan,far *last,far *next;
        unsigned        start,length,source,dest,oldborder;
        int                     playing;
 
@@ -1035,7 +1231,7 @@ void MM_SortMem(mminfo_t *mm)
        if(beforesort)
                beforesort();
 
-       scan = mm->mmhead;
+       scan = gvar->mm.mmhead;
 
        last = NULL;            // shut up compiler warning
 
@@ -1056,7 +1252,8 @@ void MM_SortMem(mminfo_t *mm)
                        // throw out the purgable block
                        //
                                next = scan->next;
-                               MM_FreeBlock(scan, mm);
+                               FREEBLOCK(scan);
+                               //MM_FreeBlock(scan, gvar);
                                last->next = next;
                                scan = next;
                                continue;
@@ -1091,7 +1288,7 @@ void MM_SortMem(mminfo_t *mm)
                scan = scan->next;              // go to next block
        }
 
-       mm->mmrover = mm->mmhead;
+       gvar->mm.mmrover = gvar->mm.mmhead;
 
        if(aftersort)
                aftersort();
@@ -1102,10 +1299,8 @@ void MM_SortMem(mminfo_t *mm)
                MM_SetLock(&(memptr)audiosegs[playing],false);*/
 }
 
-
 //==========================================================================
 
-//****#if 0
 /*
 =====================
 =
@@ -1114,105 +1309,158 @@ void MM_SortMem(mminfo_t *mm)
 =====================
 */
 
-void MM_ShowMemory(page_t *page, mminfo_t *mm)
+void MM_ShowMemory(global_game_variables_t *gvar)
 {
-       mmblocktype huge *scan;
-       word color,temp;
-       long    end,owner;
-       word chx,chy;
-       byte    scratch[160],str[16];
-
+       //huge mmblocktype huge *scan;
+       mmblocktype far *scan;
+       word temp;
+       sdword  end,owner;
+       //word chx,chy;
+       word w;
+       //dword wwww;
+       byte    scratch[160],scratch0[4096],scratch1[160],str[16];
+       //byte d = '#';
 //**** VW_SetDefaultColors();
 //**** VW_SetLineWidth(40);
 //++++mh       temp = bufferofs;
 //++++mh       bufferofs = 0;
 //**** VW_SetScreen (0,0);
-
-       scan = mm->mmhead;
-
+       scan = gvar->mm.mmhead;
        end = -1;
 
-CA_OpenDebug ();
-
-       chx=0;
-       chy=0;
-
+       CA_OpenDebug (gvar);
+       w=0;
        while(scan)
        {
+               strcpy(scratch, AARESET);
                if(scan->attributes & PURGEBITS)
-                       color = 5;              // dark purple = purgable
+                       strcpy(scratch0, AAMAGENTA);            // dark purple = purgable
                else
-                       color = 9;              // medium blue = non purgable
+                       strcpy(scratch0, AABLUE);               // medium blue = non purgable
                if(scan->attributes & LOCKBIT)
-                       color = 12;             // red = locked
+                       strcpy(scratch0, AARED);                // red = locked
                if(scan->start<=end)
                {
-                       //printf(");
-                       write(debughandle,"\nMM_ShowMemory: Memory block order currupted!\n",strlen("\nMM_ShowMemory: Memory block order currupted!\n"));
+                       printf("\nend==%d\n\n", end);
+                       strcat(scratch, "MM_ShowMemory: Memory block order currupted!\n");
+                       strcat(scratch, "End's Size: ");
+                       ultoa (end,str,10);
+                       strcat (scratch,str);
+                       strcat(scratch, "\nscan->start's Size: ");
+                       ultoa (scan->start,str,10);
+                       strcat (scratch,str);
+                       write(gvar->handle.debughandle,scratch,strlen(scratch));
                        //modexprint(&page, chx, chy, 1, 0, 24, "\nMM_ShowMemory: Memory block order currupted!\n");
-                       return;
+                       break;
                }
-               end = scan->start+scan->length-1;
-               chy = scan->start/320;
-               chx = scan->start%320;
+               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);
+//++++                                 modexClearRegion(page, chx, chy, 4, 4, color);
                                //}
-
 //++++         VW_Hlin(scan->start,(unsigned)end,0,color);
-
+               for(w=(scan->start)/80;w<=end/80;w++)
+               {
+                       //printf("+     %u      %lu\n", w, scan->length);
+                       strcat(scratch0, "+");
+               }
+               //++==++==optional strcat(scratch0, AARESET); strcat(scratch0, AAGREY); strcat(scratch0,"_");
 //++++         VW_Plot(scan->start,0,15);
-                               modexClearRegion(page, chx, chy, 4, 4, 15);
-               if(scan->next->start > end+1)
+//++++                         modexClearRegion(page, chx, chy, 4, 4, 15);
 //++++                 VW_Hlin(end+1,scan->next->start,0,0);   // black = free
+
+               //wwww=(dword)(scan->next->start)-(dword)scan->start;
+               //wwww=(dword)scan->start+(dword)(scan->next->start);
+               if (scan->next && scan->next->start >= end+1)
+               {
+                       strcat(scratch0, AARESET);
+                       //++==++==optional strcat(scratch0, "\n");
+                       strcat(scratch0,AAGREEN);
+                       for(w=(end+1)/80;w<=((scan->next->start-scan->start)/80);w++)
+                       //for(w=(wwww)/80;w<=((end+1)/80);w++)
+                       //for(w=(end+1)/80;w<=((wwww)/80);w++)
+                       {
+                               //printf("0     %x      %u      %lu\n", scan->next->start, w, scan->length);
+                               strcat(scratch0,"0");
+                       }
+                       //printf("==================\n");
+                       //printf("w=%u  wwww=%lu        start=%04x      next=%04x       end=%lu\n", w/80, wwww/80, scan->start, (scan->next->start), end+1);
+                       //printf("==================\n");
+                       strcat(scratch0, "\n");
+                       //getch();
+               }/*else {//if(scan->next->start <= scan->start){
+                       scan->next->start=scan->start+0x1000;
+                       wwww=(dword)(scan->next->start)-(dword)scan->start;
+                       strcat(scratch0, AARESET);
+                       strcat(scratch0, "\n");
+                       strcat(scratch0,AAGREEN);
+                       for(w=(end+1);w<=(0x1000/80);w++)
+                       {
+                               //printf("0     %x      %x      %u\n", scan->start, w);
+                               strcat(scratch0,"0");
+                       }
+                       printf("================\n");
+                       printf("w=%x    start=%x        next=%x end=%u  %lu\n", w, scan->start, (scan->next->start), end+1, wwww);
+                       printf("================\n");
+                       getch();
+               }*/
+               strcat(scratch0, AARESET);
+               //strcat(scratch0,"\n");
                        //for(chx=scan->next->start;chx+4>=(word)end+1;chx+=4)
                        //{
-                               chx+=scan->next->start;
-                               modexClearRegion(page, chx, chy, 4, 4, 2);
+//                             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;
+/*             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,"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));
+               VW_Plot(x,y,15);*/
+//++++                 VW_Hlin(x+end+1,x+(scan->next->start-scan->start),y,0); // black = free
+               strcat(scratch,"Seg:");
+               ultoa (scan->start,str,16);
+               strcat (scratch,str);
+               strcat (scratch,"\tSize:");
+               ultoa ((unsigned)scan->length,str,10);
+               strcat (scratch,str);
+               strcat (scratch,"\tOwner:0x");
+               owner = (unsigned)scan->useptr;
+               ultoa (owner,str,16);
+               strcat (scratch,str);
+               strcat (scratch,"\n");
+               write(gvar->handle.debughandle,scratch,strlen(scratch));
+               write(gvar->handle.debughandle,scratch0,strlen(scratch0));
 //modexprint(page, chx, chy, 1, 0, 24, &scratch);
-chy+=4;
+//++++chy+=4;
 //fprintf(stdout, "%s", scratch);
-//****#endif
 
                scan = scan->next;
        }
-
-CA_CloseDebug ();
+       /*strcpy(scratch1, AARESET);
+       strcat(scratch1, "========================================\n");
+       strcat(scratch1, "near=  ");
+       ultoa (*(gvar->mm.nearheap),str,10);
+       strcat (scratch1,str);
+       strcat(scratch1, "      far= ");
+       ultoa (*(gvar->mm.farheap),str,10);
+       strcat (scratch1,str);
+       strcat(scratch1, "\n");
+       //strcat(scratch1, "&near=      %Fp ", &(gvar->mm.nearheap));
+       //strcat(scratch1, "&far=       %Fp", &(gvar->mm.farheap));
+       //strcat(scratch1, "\n");
+       strcat(scratch1, "========================================\n");
+       write(gvar->handle.debughandle,scratch1,strlen(scratch1));*/
+
+
+       CA_CloseDebug (gvar);
 
 //++++mh       IN_Ack();
 //**** VW_SetLineWidth(64);
 //++++mh       bufferofs = temp;
 }
-//****#endif
 
 //==========================================================================
 
@@ -1224,19 +1472,24 @@ CA_CloseDebug ();
 =====================
 */
 
-void MM_DumpData(mminfo_t *mm)
+void MM_DumpData(global_game_variables_t *gvar)
 {
+       //huge mmblocktype huge *scan,huge *best;
        mmblocktype far *scan,far *best;
        long    lowest,oldlowest;
        word    owner;
        byte    lock,purge;
        FILE    *dumpfile;
 
-
-       free (mm->nearheap);
-       dumpfile = fopen ("mmdump.txt","w");
+       free(gvar->mm.nearheap);
+#ifdef __BORLANDC__
+               dumpfile = fopen ("mmdump.16b","w");
+#endif
+#ifdef __WATCOMC__
+               dumpfile = fopen ("mmdump.16w","w");
+#endif
        if (!dumpfile){
-               printf("MM_DumpData: Couldn't open MMDUMP.TXT!\n");
+               printf("MM_DumpData: Couldn't open MMDUMP.16!\n");
                return;
        }
 
@@ -1246,10 +1499,10 @@ void MM_DumpData(mminfo_t *mm)
                oldlowest = lowest;
                lowest = 0xffff;
 
-               scan = mm->mmhead;
+               scan = gvar->mm.mmhead;
                while (scan)
                {
-                       owner = (word)scan->useptr;
+                       owner = (unsigned)scan->useptr;
 
                        if (owner && owner<lowest && owner > oldlowest)
                        {
@@ -1271,13 +1524,13 @@ void MM_DumpData(mminfo_t *mm)
                        else
                                lock = '-';
                        fprintf (dumpfile,"0x%p (%c%c) = %u\n"
-                       ,(word)lowest,lock,purge,best->length);
+                       ,(unsigned)lowest,lock,purge,best->length);
                }
 
        } while (lowest != 0xffff);
 
-       fclose (dumpfile);
-       printf("MMDUMP.TXT created.\n");
+       fclose(dumpfile);
+       printf("MMDUMP.16 created.\n");
 }
 
 //==========================================================================
@@ -1293,13 +1546,14 @@ void MM_DumpData(mminfo_t *mm)
 ======================
 */
 
-dword MM_UnusedMemory(mminfo_t *mm)
+dword MM_UnusedMemory(global_game_variables_t *gvar)
 {
        dword free;
-       mmblocktype huge *scan;
+       //huge mmblocktype huge *scan;
+       mmblocktype far *scan;
 
        free = 0;
-       scan = mm->mmhead;
+       scan = gvar->mm.mmhead;
 
        while(scan->next)
        {
@@ -1307,7 +1561,7 @@ dword MM_UnusedMemory(mminfo_t *mm)
                scan = scan->next;
        }
 
-       return free*16l;
+       return free*16lu;
 //     return free;
 }
 
@@ -1324,13 +1578,14 @@ dword MM_UnusedMemory(mminfo_t *mm)
 ======================
 */
 
-dword MM_TotalFree(mminfo_t *mm)
+dword MM_TotalFree(global_game_variables_t *gvar)
 {
        dword free;
-       mmblocktype huge *scan;
+       //huge mmblocktype huge *scan;
+       mmblocktype far *scan;
 
        free = 0;
-       scan = mm->mmhead;
+       scan = gvar->mm.mmhead;
 
        while(scan->next)
        {
@@ -1340,7 +1595,7 @@ dword MM_TotalFree(mminfo_t *mm)
                scan = scan->next;
        }
 
-       return free*16l;
+       return free*16lu;
 //     return free;
 }
 
@@ -1354,26 +1609,32 @@ dword MM_TotalFree(mminfo_t *mm)
 =====================
 */
 
-void MM_Report(page_t *page, mminfo_t *mm, mminfotype *mmi)
+void MM_Report_(global_game_variables_t *gvar)
 {
+       printf("========================================\n");
+       printf("                MM_Report_\n");
+       printf("========================================\n");
        if(MML_CheckForEMS())
        {
-               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);
+               printf("        LIMEMS\n");
+               printf("                EMM v%x.%x available\n", gvar->pm.emm.EMSVer>>4,gvar->pm.emm.EMSVer&0x0F);
+               printf("                totalEMSpages:  %u      ", gvar->pm.emm.totalEMSpages); printf("freeEMSpages:   %u\n", gvar->pm.emm.freeEMSpages);
+               printf("                EMSPageFrame:   %04x\n", gvar->pm.emm.EMSPageFrame);
+       }
+       if(MML_CheckForXMS())
+       {
+               printf("        XMS\n");
+//++++         printf("                XMS v%x.%x available\n", gvar->pm.xmm.XMSVer>>4,gvar->pm.xmm.XMSVer&0x0F);
+               printf("                XMSDriver:      %Fp\n", XMSDriver);
+               printf("                XMSHandle:      %04x\n", gvar->pm.xmm.XMSHandle);
        }
-       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);
-       printf("XMSmem=%lu\n", mmi->XMSmem);
-       printf("mainmem=%lu\n", mmi->mainmem);
-       printf("UnusedMemory=%lu\n", MM_UnusedMemory(mm));
-       printf("TotalFree=%lu\n", MM_TotalFree(mm));
-//     printf("\n");
-//     printf("UnusedMemory=%lu kb\n", MM_UnusedMemory()/10248);
-//     printf("TotalFree=%lu kb\n", MM_TotalFree()/10248);
+       printf("nearheap:       %lu             ", gvar->mmi.nearheap); printf("farheap:        %lu\n", gvar->mmi.farheap);
+       if(MML_CheckForEMS()) printf("EMSmem:           %lu     ", gvar->mmi.EMSmem); if(MML_CheckForXMS()) printf("XMSmem:             %lu", gvar->mmi.XMSmem); printf("\n");
+       printf("convmem:\n"); DebugMemory_(gvar, 0);
+       //printf("mainmem:      %lu\n", gvar->mmi.mainmem);
+       //printf("Total convmem:        %lu     ", gvar->mmi.mainmem); printf("TotalFree:       %lu     ", MM_TotalFree(gvar)+gvar->mmi.EMSmem+gvar->mmi.XMSmem+gvar->mmi.XMSmem); printf("TotalUsed:   %lu\n", gvar->mmi.mainmem);
+       //printf("                      UnusedMemory:   %lu\n", MM_UnusedMemory(gvar));
+
 }
 
 //==========================================================================
@@ -1381,22 +1642,131 @@ void MM_Report(page_t *page, mminfo_t *mm, mminfotype *mmi)
 /*
 =====================
 =
-= MM_EMSVer
+= MM_EMSerr
 =
 =====================
+*/
 
-
-int MM_EMSVer(void)
+void MM_EMSerr(byte *stri, byte err)
 {
-       int EMSver;
-       __asm
+       //Returns a text string describing the error code in EMS.Error.
+       switch(err)
        {
-               mov             ah,EMS_VERSION
-               int             EMS_INT
-               mov             EMSver,ax
+               case 0x0:
+                       strcat(stri, "successful");
+               break;
+               case 0x80:
+                       strcat(stri, "internal error");
+               break;
+               case 0x81:
+                       strcat(stri, "hardware malfunction");
+               break;
+               case 0x82:
+                       strcat(stri, "busy .. retry later");
+               break;
+               case 0x83:
+                       strcat(stri, "invalid handle");
+               break;
+               case 0x84:
+                       strcat(stri, "undefined function requested by application");
+               break;
+               case 0x85:
+                       strcat(stri, "no more handles available");
+               break;
+               case 0x86:
+                       strcat(stri, "error in save or restore of mapping context");
+               break;
+               case 0x87:
+                       strcat(stri, "insufficient memory pages in system");
+               break;
+               case 0x88:
+                       strcat(stri, "insufficient memory pages available");
+               break;
+               case 0x89:
+                       strcat(stri, "zero pages requested");
+               break;
+               case 0x8A:
+                       strcat(stri, "invalid logical page number encountered");
+               break;
+               case 0x8B:
+                       strcat(stri, "invalid physical page number encountered");
+               break;
+               case 0x8C:
+                       strcat(stri, "page-mapping hardware state save area is full");
+               break;
+               case 0x8D:
+                       strcat(stri, "save of mapping context failed");
+               break;
+               case 0x8E:
+                       strcat(stri, "restore of mapping context failed");
+               break;
+               case 0x8F:
+                       strcat(stri, "undefined subfunction");
+               break;
+               case 0x90:
+                       strcat(stri, "undefined attribute type");
+               break;
+               case 0x91:
+                       strcat(stri, "feature not supported");
+               break;
+               case 0x92:
+                       strcat(stri, "successful, but a portion of the source region has been overwritten");
+               break;
+               case 0x93:
+                       strcat(stri, "length of source or destination region exceeds length of region allocated to either source or destination handle");
+               break;
+               case 0x94:
+                       strcat(stri, "conventional and expanded memory regions overlap");
+               break;
+               case 0x95:
+                       strcat(stri, "offset within logical page exceeds size of logical page");
+               break;
+               case 0x96:
+                       strcat(stri, "region length exceeds 1 MB");
+               break;
+               case 0x97:
+                       strcat(stri, "source and destination EMS regions have same handle and overlap");
+               break;
+               case 0x98:
+                       strcat(stri, "memory source or destination type undefined");
+               break;
+               case 0x9A:
+                       strcat(stri, "specified alternate map register or DMA register set not supported");
+               break;
+               case 0x9B:
+                       strcat(stri, "all alternate map register or DMA register sets currently allocated");
+               break;
+               case 0x9C:
+                       strcat(stri, "alternate map register or DMA register sets not supported");
+               break;
+               case 0x9D:
+                       strcat(stri, "undefined or unallocated alternate map register or DMA register set");
+               break;
+               case 0x9E:
+                       strcat(stri, "dedicated DMA channels not supported");
+               break;
+               case 0x9F:
+                       strcat(stri, "specified dedicated DMA channel not supported");
+               break;
+               case 0xA0:
+                       strcat(stri, "no such handle name");
+               break;
+               case 0xA1:
+                       strcat(stri, "a handle found had no name, or duplicate handle name");
+               break;
+               case 0xA2:
+                       strcat(stri, "attempted to wrap around 1M conventional address space");
+               break;
+               case 0xA3:
+                       strcat(stri, "source array corrupted");
+               break;
+               case 0xA4:
+                       strcat(stri, "operating system denied access");
+               break;
+               default:
+                       strcat(stri, "undefined error");
        }
-       return(EMSver);
-}*/
+}
 
 //==========================================================================
 
@@ -1408,36 +1778,44 @@ int MM_EMSVer(void)
 =====================
 */
 
-void MM_BombOnError(boolean bomb, mminfo_t *mm)
+void MM_BombOnError(boolean bomb, global_game_variables_t *gvar)
 {
-       mm->bombonerror = bomb;
+       gvar->mm.bombonerror = bomb;
 }
 
-void MM_GetNewBlock(mminfo_t *mm)
+/*void MM_GetNewBlock(global_game_variables_t *gvar)
 {
-       if(!mm->mmfree)
-               MML_ClearBlock(mm);
-       mm->mmnew=mm->mmfree;
-       mm->mmfree=mm->mmfree->next;
-       /*if(!(mm->mmnew=mm->mmfree))
+       if(!gvar->mm.mmfree)
+               MML_ClearBlock(gvar);
+       gvar->mm.mmnew=gvar->mm.mmfree;
+       gvar->mm.mmfree=gvar->mm.mmfree->next;
+       if(!(gvar->mm.mmnew=gvar->mm.mmfree))
        {
-               printf("MM_GETNEWBLOCK: No free blocks!");
+               printf("MM_GETNEWBLOCK: No free blocks!\n");
                return;
        }
-       mm->mmfree=mm->mmfree->next;*/
+       gvar->mm.mmfree=gvar->mm.mmfree->next;
 }
 
-void MM_FreeBlock(mmblocktype *x, mminfo_t *mm)
+void MM_FreeBlock(mmblocktype *x, global_game_variables_t *gvar)
 {
        x->useptr=NULL;
-       x->next=mm->mmfree;
-       mm->mmfree=x;
+       x->next=gvar->mm.mmfree;
+       gvar->mm.mmfree=x;
+}*/
+
+void xms_call(byte v, global_game_variables_t *gvar)
+{
+       dword XMSDriver = gvar->pm.xmm.XMSDriver;
+       __asm {
+               mov     ah,[v]
+               call [DWORD PTR XMSDriver]
+       }
 }
 
-void MM_seguin(void)
+/*void MM_seguin(void)
 {
-       __asm
-       {
+       __asm {
                push    ds
                mov     ax,ds
                inc             ax
@@ -1447,11 +1825,10 @@ void MM_seguin(void)
 
 void MM_segude(void)
 {
-       __asm
-       {
+       __asm {
                pop ds
        }
-}
+}*/
 
 /*
 pull data from far and put it into ds var