-/* Catacomb Apocalypse Source Code\r
- * Copyright (C) 1993-2014 Flat Rock Software\r
+/* Project 16 Source Code~\r
+ * Copyright (C) 2012-2017 sparky4 & pngwen & andrius4669 & joncampbell123 & yakui-lover\r
*\r
- * This program is free software; you can redistribute it and/or modify\r
+ * This file is part of Project 16.\r
+ *\r
+ * Project 16 is free software; you can redistribute it and/or modify\r
* it under the terms of the GNU General Public License as published by\r
- * the Free Software Foundation; either version 2 of the License, or\r
+ * the Free Software Foundation; either version 3 of the License, or\r
* (at your option) any later version.\r
*\r
- * This program is distributed in the hope that it will be useful,\r
+ * Project 16 is distributed in the hope that it will be useful,\r
* but WITHOUT ANY WARRANTY; without even the implied warranty of\r
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
* GNU General Public License for more details.\r
*\r
- * You should have received a copy of the GNU General Public License along\r
- * with this program; if not, write to the Free Software Foundation, Inc.,\r
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with this program. If not, see <http://www.gnu.org/licenses/>, or\r
+ * write to the Free Software Foundation, Inc., 51 Franklin Street,\r
+ * Fifth Floor, Boston, MA 02110-1301 USA.\r
+ *\r
*/\r
\r
// NEWMM.C\r
#pragma warn -pro\r
#pragma warn -use\r
\r
+\r
+/*\r
+=============================================================================\r
+\r
+ LOCAL INFO\r
+\r
+=============================================================================\r
+*/\r
+\r
+//#define LOCKBIT 0x80 // if set in attributes, block cannot be moved\r
+//#define PURGEBITS 3 // 0-3 level, 0= unpurgable, 3= purge first\r
+//#define PURGEMASK 0xfffc\r
+//#define BASEATTRIBUTES 0 // unlocked, non purgable\r
+\r
+//#define MAXUMBS 10\r
+\r
+/*typedef struct mmblockstruct\r
+{\r
+ unsigned start,length;\r
+ unsigned attributes;\r
+ memptr *useptr; // pointer to the segment start\r
+ struct mmblockstruct far *next;\r
+} mmblocktype;*/\r
+\r
+\r
+//#define GETNEWBLOCK {if(!(mmnew=mmfree))Quit("MM_GETNEWBLOCK: No free blocks!") ;mmfree=mmfree->next;}\r
+//\r
+\r
+//#define GETNEWBLOCK {if(!gvar->mm.mmfree)MML_ClearBlock(gvar);gvar->mm.mmnew=gvar->mm.mmfree;gvar->mm.mmfree=gvar->mm.mmfree->next;}\r
+\r
+//#define FREEBLOCK(x) {*x->useptr=NULL;x->next=gvar->mm.mmfree;gvar->mm.mmfree=x;}\r
+\r
/*\r
=============================================================================\r
\r
=============================================================================\r
*/\r
\r
+/*mminfotype mminfo;\r
+memptr bufferseg;\r
+boolean mmerror;*/\r
+\r
void (* beforesort) (void);\r
void (* aftersort) (void);\r
-void (* XMSaddr) (void); // far pointer to XMS driver\r
\r
/*\r
=============================================================================\r
\r
=============================================================================\r
*/\r
+\r
+/*boolean mmstarted;\r
+\r
+void far *farheap;\r
+void *nearheap;\r
+\r
+mmblocktype far mmblocks[MAXBLOCKS]\r
+ ,far *mmhead,far *mmfree,far *mmrover,far *mmnew;\r
+\r
+boolean bombonerror;*/\r
+\r
+//unsigned totalEMSpages,freeEMSpages,EMSpageframe,EMSpagesmapped,EMShandle;\r
+\r
+void (* XMSaddr) (void); // far pointer to XMS driver\r
+\r
+/*unsigned numUMBs,UMBbase[MAXUMBS];*/\r
+\r
+//==========================================================================\r
+\r
+//\r
+// local prototypes\r
+//\r
+\r
+boolean MML_CheckForEMS (void);\r
+void MML_ShutdownEMS (void);\r
+void MM_MapEMS (void);\r
+boolean MML_CheckForXMS (void);\r
+void MML_ShutdownXMS (void);\r
+//void MML_UseSpace (unsigned segstart, unsigned seglength);\r
+//void MML_ClearBlock (void);\r
+\r
+//==========================================================================\r
#ifndef __16_PM__\r
#if 0\r
static char *ParmStringsexmm[] = {"noems","noxms",""};\r
}\r
#endif\r
// printf("base=%u ", base); printf("size=%u\n", size);\r
- MML_UseSpace(base,size, gvar);\r
+ MML_UseSpace (base,size, gvar);\r
gvar->mmi.XMSmem += size*16;\r
gvar->mm.UMBbase[gvar->mm.numUMBs] = base;\r
gvar->mm.numUMBs++;\r
{\r
scan->blob=segm;\r
\r
- //MML_UseSpace(segstart, seglength, gvar);\r
+ //MML_UseSpace (segstart, seglength, gvar);\r
\r
printf("MML_UseSpace: Segment spans two blocks!\n");\r
//}\r
}\r
//++++todo: linked list of segment!\r
*/\r
-void MML_UseSpace(word segstart, dword seglength, global_game_variables_t *gvar)\r
+void MML_UseSpace (word segstart, word seglength, global_game_variables_t *gvar)\r
{\r
mmblocktype far *scan,far *last;\r
word oldend;\r
// take the given range out of the block\r
//\r
oldend = scan->start + scan->length;\r
- extra = oldend - (segstart+((unsigned)seglength));\r
+ extra = oldend - (segstart+seglength);\r
if (extra < 0)\r
+#ifdef __DEBUG_MM__\r
{\r
printf("========================================\n");\r
printf("start=%x ", scan->start);\r
printf("========================================\n");\r
//return;\r
}\r
+#else\r
+ Quit ("MML_UseSpace: Segment spans two blocks!");\r
+#endif\r
\r
if (segstart == scan->start)\r
{\r
====================\r
*/\r
\r
-void MML_ClearBlock(global_game_variables_t *gvar)\r
+void MML_ClearBlock (global_game_variables_t *gvar)\r
{\r
mmblocktype far *scan;//,far *last;\r
\r
scan = scan->next;\r
}\r
\r
- printf("MM_ClearBlock: No purgable blocks!\n");\r
+ Quit (gvar, "MM_ClearBlock: No purgable blocks!\n");\r
}\r
\r
\r
===================\r
*/\r
\r
-void MM_Startup(global_game_variables_t *gvar)\r
+void MM_Startup (global_game_variables_t *gvar)\r
{\r
int i;\r
- //dword length,seglength;\r
- dword length; word seglength;\r
+ dword length;\r
void far *start;\r
- word segstart;//,endfree;\r
+ word segstart,seglength;//,endfree;\r
\r
if(gvar->mm.mmstarted)\r
- MM_Shutdown(gvar);\r
+ MM_Shutdown (gvar);\r
\r
gvar->mm.mmstarted = true;\r
gvar->mm.bombonerror = true;\r
//\r
gvar->mm.mmhead = NULL;\r
gvar->mm.mmfree = &(gvar->mm.mmblocks[0]);\r
- for(i=0;i<MAXBLOCKS-1;i++)\r
+ for (i=0;i<MAXBLOCKS-1;i++)\r
gvar->mm.mmblocks[i].next = &(gvar->mm.mmblocks[i+1]);\r
gvar->mm.mmblocks[i].next = NULL;\r
\r
gvar->mm.mmnew->next = NULL;\r
gvar->mm.mmrover = gvar->mm.mmhead;\r
\r
+\r
//\r
// get all available near conventional memory segments\r
//\r
length -= SAVENEARHEAP;\r
seglength = length / 16; // now in paragraphs\r
segstart = FP_SEG(start)+(FP_OFF(start)+15)/16;\r
- MML_UseSpace(segstart,seglength, gvar);\r
+ MML_UseSpace (segstart,seglength, gvar);\r
gvar->mmi.nearheap = length;\r
//0000printf("near: start=%Fp segstart=%x seglen=%lu len=%lu\n", start, segstart, (dword)seglength, length);\r
\r
length -= SAVEFARHEAP;\r
seglength = length / 16; // now in paragraphs\r
segstart = FP_SEG(start)+(FP_OFF(start)+15)/16;\r
- MML_UseSpace(segstart,seglength, gvar);\r
+ MML_UseSpace (segstart,seglength, gvar);\r
gvar->mmi.farheap = length;\r
//0000printf("far: start=%Fp segstart=%x seglen=%lu len=%lu\n", start, segstart, (dword)seglength, length);\r
\r
{\r
MML_SetupEMS(gvar); // allocate space\r
//16_PM: EMS4! AND EMS 3.2 MASSIVE DATA HANDLMENT!\r
- MML_UseSpace(gvar->mm.EMSPageFrame,(MAPPAGES)*0x4000lu, gvar);\r
+ MML_UseSpace (gvar->mm.EMSPageFrame,(MAPPAGES)*0x4000lu, gvar);\r
//if(gvar->pm.emm.EMSVer<0x40)\r
MM_MapEMS(gvar); // map in used pages\r
//else\r
//\r
gvar->mm.mmrover = gvar->mm.mmhead; // start looking for space after low block\r
\r
- MM_GetPtr(&(gvar->mm.bufferseg),BUFFERSIZE, gvar);\r
+ MM_GetPtr (&(gvar->mm.bufferseg),BUFFERSIZE, gvar);\r
}\r
\r
//==========================================================================\r
====================\r
*/\r
\r
-void MM_Shutdown(global_game_variables_t *gvar)\r
+void MM_Shutdown (global_game_variables_t *gvar)\r
{\r
if(!(gvar->mm.mmstarted))\r
return;\r
====================\r
*/\r
\r
-void MM_GetPtr (memptr *baseptr, dword size, global_game_variables_t *gvar)\r
+void MM_GetPtr (memptr *baseptr,dword size, global_game_variables_t *gvar)\r
{\r
mmblocktype far *scan,far *lastscan,far *endscan\r
- ,far *purge,far *next;\r
+ ,far *purge,far *next;\r
int search;\r
unsigned needed,startseg;\r
\r
GETNEWBLOCK; // fill in start and next after a spot is found\r
gvar->mm.mmnew->length = needed;\r
gvar->mm.mmnew->useptr = baseptr;\r
+ gvar->mm.mmnew->attributes = BASEATTRIBUTES;\r
//if(gvar->mm.mmnew->useptr==NULL){\r
#ifdef __DEBUG_MM__\r
printf("MM_GetPtr\n");\r
printf(" size is %lu\n", size);\r
#endif\r
//Quit(gvar, "gvar->mm.mmnew->useptr==NULL"); }\r
- gvar->mm.mmnew->attributes = BASEATTRIBUTES;\r
\r
//tryagain:\r
for (search = 0; search<3; search++)\r