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/16_lib.h"
29 //#include "src/lib/modex16.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(!gvar->mm.mmfree)MML_ClearBlock(gvar);gvar->mm.mmnew=gvar->mm.mmfree;gvar->mm.mmfree=gvar->mm.mmfree->next;}
41 #define FREEBLOCK(x) {*x->useptr=NULL;x->next=gvar->mm.mmfree;gvar->mm.mmfree=x;}
43 #define SAVENEARHEAP 0x200 // space to leave in data segment
44 #define SAVEFARHEAP 0//x400 // space to leave in far heap
46 #define BUFFERSIZE 0x1000 // miscelanious, allways available buffer
49 //#define MAXBLOCKS 1024
57 #define EMS_STATUS 0x40
58 #define EMS_GETFRAME 0x41
59 #define EMS_GETPAGES 0x42
60 #define EMS_ALLOCPAGES 0x43
61 #define EMS_MAPPAGE 0x44
62 #define EMS_MAPXPAGE 0x50
63 #define EMS_FREEPAGES 0x45
64 #define EMS_VERSION 0x46
69 #define XMSD dword XMSDriver=gvar->pm.xmm.XMSDriver;
70 inline void XMS_CALL(byte v, global_game_variables_t *gvar)
73 XMSDriver=gvar->pm.xmm.XMSDriver;
76 call [WORD PTR XMSDriver]
80 #define XMS_VERSION 0x00
82 #define XMS_ALLOCHMA 0x01
83 #define XMS_FREEHMA 0x02
85 #define XMS_GENABLEA20 0x03
86 #define XMS_GDISABLEA20 0x04
87 #define XMS_LENABLEA20 0x05
88 #define XMS_LDISABLEA20 0x06
89 #define XMS_QUERYA20 0x07
91 #define XMS_QUERYFREE 0x08
92 #define XMS_ALLOC 0x09
96 #define XMS_UNLOCK 0x0D
97 #define XMS_GETINFO 0x0E
98 #define XMS_RESIZE 0x0F
100 #define XMS_ALLOCUMB 0x10
101 #define XMS_FREEUMB 0x11
103 //==========================================================================
108 dword nearheap,farheap,EMSmem,XMSmem,mainmem;
111 //==========================================================================
113 extern void (* beforesort) (void);
114 extern void (* aftersort) (void);
115 extern void (* XMSaddr) (void); // far pointer to XMS driver
117 //==========================================================================
120 =============================================================================
124 =============================================================================
127 #define LOCKBIT 0x80 // if set in attributes, block cannot be moved
128 #define PURGEBITS 3 // 0-3 level, 0= unpurgable, 3= purge first
129 #define PURGEMASK 0xfffc
130 #define BASEATTRIBUTES 0 // unlocked, non purgable
134 #define MAPPAGES 4//gvar->mm.EMSpagesmapped
137 /*typedef struct mmblockstruct
140 //word start; dword length;
141 word blob; //for data larger than 64k
143 memptr *useptr; // pointer to the segment start
144 //huge struct mmblockstruct huge *next;
145 struct mmblockstruct far *next;
152 boolean mmstarted, bombonerror, mmerror;
153 //huge void huge *farheap;
159 void __near *nearheap;
162 unsigned totalEMSpages,freeEMSpages,EMSpageframe,EMSpagesmapped,EMShandle;
164 word numUMBs,UMBbase[MAXUMBS];
165 //dword numUMBs,UMBbase[MAXUMBS];
166 //huge mmblocktype huge mmblocks[MAXBLOCKS],huge *mmhead,huge *mmfree,huge *mmrover,huge *mmnew;
167 mmblocktype far mmblocks[MAXBLOCKS],far *mmhead,far *mmfree,far *mmrover,far *mmnew;
171 =============================================================================
175 =============================================================================
180 =============================================================================
184 =============================================================================
187 //==========================================================================
189 boolean MML_CheckForEMS(void);
190 //byte MML_SetupEMS(mminfo_t *mm);
191 //void MML_ShutdownEMS(mminfo_t *mm);
192 byte MM_MapEMS(global_game_variables_t *gvar);
193 byte MM_MapXEMS(global_game_variables_t *gvar);
194 //boolean MML_CheckForXMS(mminfo_t *mm);
195 //void MML_SetupXMS(mminfo_t *mm, mminfotype *mmi);
196 //void MML_ShutdownXMS(mminfo_t *mm);
197 void MML_UseSpace(word segstart, dword seglength, global_game_variables_t *gvar);
198 void MML_ClearBlock(global_game_variables_t *gvar);
200 void MM_Startup(global_game_variables_t *gvar);
201 void MM_Shutdown(global_game_variables_t *gvar);
203 void MM_GetPtr(memptr *baseptr,dword size, global_game_variables_t *gvar);
204 void MM_FreePtr(memptr *baseptr, global_game_variables_t *gvar);
205 void MM_SetPurge(memptr *baseptr, int purge, global_game_variables_t *gvar);
206 void MM_SetLock(memptr *baseptr, boolean locked, global_game_variables_t *gvar);
207 void MM_SortMem(global_game_variables_t *gvar);
208 void MM_ShowMemory(global_game_variables_t *gvar);//,/*page_t *page, */mminfo_t *mm);
209 void MM_DumpData(global_game_variables_t *gvar);
210 dword MM_UnusedMemory(global_game_variables_t *gvar);
211 dword MM_TotalFree(global_game_variables_t *gvar);
212 void MM_Report_(global_game_variables_t *gvar);
213 static void MM_EMSerr(byte *stri, byte err);
214 void MM_BombOnError(boolean bomb, global_game_variables_t *gvar);
215 //void MM_GetNewBlock(mminfo_t *mm);
216 //void MM_FreeBlock(mmblocktype *x, mminfo_t *mm);
218 //==========================================================================