1 /* Catacomb Apocalypse Source Code
2 * Copyright (C) 1993-2014 Flat Rock Software
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 #include "src/lib/16_head.h"
27 #include "src/lib/16_hc.h"
28 //#include "src/lib/modex16.h"
29 //#include "src/lib/16_ca.h"
30 //++++mh #include "src/lib/16_in.h"
32 #ifdef __DEBUG__ // 1 == Debug/Dev ; 0 == Production/final
33 #define OUT_OF_MEM_MSG "MM_GetPtr: Out of memory!\nYou were short :%lu bytes\n"
35 #define OUT_OF_MEM_MSG "\npee\n"
38 //#define GETNEWBLOCK {if(!(mmnew=mmfree))Quit("MM_GETNEWBLOCK: No free blocks!") ;mmfree=mmfree->next;}
39 #define GETNEWBLOCK {if(!mm->mmfree)MML_ClearBlock(mm);mm->mmnew=mm->mmfree;mm->mmfree=mm->mmfree->next;mm->endid++;}
41 #define FREEBLOCK(x) {*x->useptr=NULL;x->next=mm->mmfree;mm->mmfree=x;mm->endid--;}
43 #define AAMAGENTA "\x1b[35;35m"
44 #define AABLUE "\x1b[34;34m"
45 #define AARED "\x1b[31;31m"
46 #define AABLACK "\x1b[40;40m"
47 #define AAWHITE "\x1b[37;37m"
48 #define AARESET "\x1b[0m"
50 #define SAVENEARHEAP 0x200 // space to leave in data segment
51 #define SAVEFARHEAP 0//x400 // space to leave in far heap
53 #define BUFFERSIZE 0x1000 // miscelanious, allways available buffer
55 #define MAXBLOCKS 1024
63 #define EMS_STATUS 0x40
64 #define EMS_GETFRAME 0x41
65 #define EMS_GETPAGES 0x42
66 #define EMS_ALLOCPAGES 0x43
67 #define EMS_MAPPAGE 0x44
68 #define EMS_MAPXPAGE 0x50
69 #define EMS_FREEPAGES 0x45
70 #define EMS_VERSION 0x46
74 #define XMS_VERSION 0x00
76 #define XMS_ALLOCHMA 0x01
77 #define XMS_FREEHMA 0x02
79 #define XMS_GENABLEA20 0x03
80 #define XMS_GDISABLEA20 0x04
81 #define XMS_LENABLEA20 0x05
82 #define XMS_LDISABLEA20 0x06
83 #define XMS_QUERYA20 0x07
85 #define XMS_QUERYREE 0x08
86 #define XMS_ALLOC 0x09
90 #define XMS_UNLOCK 0x0D
91 #define XMS_GETINFO 0x0E
92 #define XMS_RESIZE 0x0F
94 #define XMS_ALLOCUMB 0x10
95 #define XMS_FREEUMB 0x11
97 //==========================================================================
101 dword nearheap,farheap,EMSmem,XMSmem,mainmem;
104 //==========================================================================
106 extern void (* beforesort) (void);
107 extern void (* aftersort) (void);
108 extern void (* XMSaddr) (void); // far pointer to XMS driver
110 //==========================================================================
113 =============================================================================
117 =============================================================================
120 #define LOCKBIT 0x80 // if set in attributes, block cannot be moved
121 #define PURGEBITS 3 // 0-3 level, 0= unpurgable, 3= purge first
122 #define PURGEMASK 0xfffc
123 #define BASEATTRIBUTES 0 // unlocked, non purgable
126 #define MAPPAGES 4//mm->EMSpagesmapped
128 typedef struct mmblockstruct
131 word start; dword length;
133 memptr *useptr; // pointer to the segment start
134 struct mmblockstruct huge *next;
141 boolean mmstarted, bombonerror, mmerror;
147 void __near *nearheap;
150 unsigned totalEMSpages,freeEMSpages,EMSpageframe,EMSpagesmapped,EMShandle;
152 word numUMBs,UMBbase[MAXUMBS];
153 word endid; //end of list
154 //dword numUMBs,UMBbase[MAXUMBS];
155 mmblocktype huge mmblocks[MAXBLOCKS],huge *mmhead,huge *mmfree,huge *mmrover,huge *mmnew;
159 =============================================================================
163 =============================================================================
168 =============================================================================
172 =============================================================================
175 //==========================================================================
177 boolean MML_CheckForEMS(void);
178 byte MML_SetupEMS(mminfo_t *mm);
179 void MML_ShutdownEMS(mminfo_t *mm);
180 byte MM_MapEMS(mminfo_t *mm, mminfotype *mmi);
181 byte MM_MapXEMS(mminfo_t *mm, mminfotype *mmi);
182 boolean MML_CheckForXMS(mminfo_t *mm);
183 void MML_SetupXMS(mminfo_t *mm, mminfotype *mmi);
184 void MML_ShutdownXMS(mminfo_t *mm);
185 void MML_UseSpace(/*d*/word segstart, dword seglength, mminfo_t *mm);
186 void MML_ClearBlock(mminfo_t *mm);
188 void MM_Startup(mminfo_t *mm, mminfotype *mmi);
189 void MM_Shutdown(mminfo_t *mm);
191 void MM_GetPtr(memptr *baseptr,dword size, mminfo_t *mm, mminfotype *mmi);
192 void MM_FreePtr(memptr *baseptr, mminfo_t *mm);
193 void MM_SetPurge(memptr *baseptr, int purge, mminfo_t *mm);
194 void MM_SetLock(memptr *baseptr, boolean locked, mminfo_t *mm);
195 void MM_SortMem(mminfo_t *mm);
196 void MM_ShowMemory(global_game_variables_t *gvar,/*page_t *page, */mminfo_t *mm);
197 void MM_DumpData(mminfo_t *mm);
198 dword MM_UnusedMemory(mminfo_t *mm);
199 dword MM_TotalFree(mminfo_t *mm);
200 void MM_Report(/*page_t *page, */mminfo_t *mm, mminfotype *mmi);
201 static void MM_EMSerr(byte *stri, byte err);
202 void MM_BombOnError(boolean bomb, mminfo_t *mm);
203 //void MM_GetNewBlock(mminfo_t *mm);
204 //void MM_FreeBlock(mmblocktype *x, mminfo_t *mm);
206 //==========================================================================