1 /* Project 16 Source Code~
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2 * Copyright (C) 2012-2017 sparky4 & pngwen & andrius4669 & joncampbell123 & yakui-lover
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4 * This file is part of Project 16.
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6 * Project 16 is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 3 of the License, or
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9 * (at your option) any later version.
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11 * Project 16 is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>, or
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18 * write to the Free Software Foundation, Inc., 51 Franklin Street,
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19 * Fifth Floor, Boston, MA 02110-1301 USA.
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29 #include "src/lib/16_head.h"
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30 #include "src/lib/16_hc.h"
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31 #include "src/lib/16_tail.h"
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33 #ifdef __DEBUG__ // 1 == Debug/Dev ; 0 == Production/final
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34 #define OUT_OF_MEM_MSG "MM_GetPtr: Out of memory!\nYou were short :%lu bytes\n"
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36 #define OUT_OF_MEM_MSG "\n"
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39 //#define GETNEWBLOCK {if(!(mmnew=mmfree))Quit("MM_GETNEWBLOCK: No free blocks!") ;mmfree=mmfree->next;}
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40 #define GETNEWBLOCK {if(!gvar->mm.mmfree)MML_ClearBlock(gvar);gvar->mm.mmnew=gvar->mm.mmfree;gvar->mm.mmfree=gvar->mm.mmfree->next;}
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42 #define FREEBLOCK(x) {*x->useptr=NULL;x->next=gvar->mm.mmfree;gvar->mm.mmfree=x;}
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44 #define SAVENEARHEAP 0x400 // space to leave in data segment
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45 #define SAVEFARHEAP 0 // space to leave in far heap
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47 #define BUFFERSIZE 0x1000 // miscelanious, allways available buffer
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49 //moved to 16_tdef.h
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50 //#define MAXBLOCKS 1024
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55 #define EMS_INT 0x67
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56 #define EMM_INT 0x21
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58 #define EMS_STATUS 0x40
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59 #define EMS_GETFRAME 0x41
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60 #define EMS_GETPAGES 0x42
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61 #define EMS_ALLOCPAGES 0x43
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62 #define EMS_MAPPAGE 0x44
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63 #define EMS_MAPXPAGE 0x50
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64 #define EMS_FREEPAGES 0x45
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65 #define EMS_VERSION 0x46
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69 #define XMS_INT 0x2f
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70 #define XMS_CALL(v) _AH = (v);\
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71 __asm call [DWORD PTR XMSDriver]
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72 /*__asm { mov ah,[v]\*///}
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74 #define XMS_VERSION 0x00
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76 #define XMS_ALLOCHMA 0x01
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77 #define XMS_FREEHMA 0x02
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79 #define XMS_GENABLEA20 0x03
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80 #define XMS_GDISABLEA20 0x04
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81 #define XMS_LENABLEA20 0x05
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82 #define XMS_LDISABLEA20 0x06
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83 #define XMS_QUERYA20 0x07
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85 #define XMS_QUERYFREE 0x08
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86 #define XMS_ALLOC 0x09
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87 #define XMS_FREE 0x0A
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88 #define XMS_MOVE 0x0B
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89 #define XMS_LOCK 0x0C
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90 #define XMS_UNLOCK 0x0D
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91 #define XMS_GETINFO 0x0E
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92 #define XMS_RESIZE 0x0F
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94 #define XMS_ALLOCUMB 0x10
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95 #define XMS_FREEUMB 0x11
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97 //==========================================================================
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99 //typedef void _seg * memptr; //moved to 16_t.h
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103 dword nearheap,farheap,EMSmem,XMSmem,mainmem;
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104 } mminfotype;*/ //moved to 16_tdef.h
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106 //==========================================================================
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108 extern void (* beforesort) (void);
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109 extern void (* aftersort) (void);
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110 //extern void (* XMSaddr) (void); // far pointer to XMS driver
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111 extern dword XMSDriver;
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112 extern word XMSVer;
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114 //==========================================================================
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117 =============================================================================
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121 =============================================================================
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124 #define LOCKBIT 0x80 // if set in attributes, block cannot be moved
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125 #define PURGEBITS 3 // 0-3 level, 0= unpurgable, 3= purge first
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126 #define PURGEMASK 0xfffc
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127 #define BASEATTRIBUTES 0 // unlocked, non purgable
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129 //moved to typedefst
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130 //#define MAXUMBS 12
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131 #define MAPPAGES 4//gvar->mm.EMSpagesmapped
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133 //moved to typdefst
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134 /*typedef struct mmblockstruct
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137 //word start; dword length;
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138 word blob; //for data larger than 64k
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139 unsigned attributes;
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140 memptr *useptr; // pointer to the segment start
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141 struct mmblockstruct far *next;
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148 boolean mmstarted, bombonerror, mmerror;
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150 #ifdef __BORLANDC__
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154 void __near *nearheap;
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157 unsigned totalEMSpages,freeEMSpages,EMSpageframe,EMSpagesmapped,EMShandle;
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158 unsigned int EMSVer;
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159 word numUMBs,UMBbase[MAXUMBS];
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160 //dword numUMBs,UMBbase[MAXUMBS];
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161 mmblocktype far mmblocks[MAXBLOCKS],far *mmhead,far *mmfree,far *mmrover,far *mmnew;
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165 =============================================================================
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169 =============================================================================
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174 =============================================================================
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178 =============================================================================
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181 //==========================================================================
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183 boolean MML_CheckForEMS (void);
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184 //byte MML_SetupEMS(mminfo_t *mm);
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185 //void MML_ShutdownEMS(mminfo_t *mm);
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186 //byte MM_MapEMS(global_game_variables_t *gvar);
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187 //byte MM_MapXEMS(global_game_variables_t *gvar);
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188 boolean MML_CheckForXMS (void);
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189 //void MML_SetupXMS(mminfo_t *mm, mminfotype *mmi);
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190 //void MML_ShutdownXMS(mminfo_t *mm);
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191 void MML_UseSpace (unsigned segstart, unsigned seglength, global_game_variables_t *gvar);
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192 void MML_ClearBlock (global_game_variables_t *gvar);
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194 void MM_Reset (global_game_variables_t *gvar);
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195 void MM_Startup (global_game_variables_t *gvar);
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196 void MM_Shutdown (global_game_variables_t *gvar);
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198 void MM_GetPtr (memptr *baseptr,dword size, global_game_variables_t *gvar);
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199 void MM_FreePtr (memptr *baseptr, global_game_variables_t *gvar);
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200 void MM_SetPurge (memptr *baseptr, int purge, global_game_variables_t *gvar);
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201 void MM_SetLock (memptr *baseptr, boolean locked, global_game_variables_t *gvar);
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202 void MM_SortMem (global_game_variables_t *gvar);
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203 void MM_ShowMemory (global_game_variables_t *gvar);
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204 //void MM_ShowMemoryDetail (unsigned x, unsigned y, unsigned w, unsigned q, sdword end, mmshowmemoryinfo_t *scaninfo, global_game_variables_t *gvar);
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205 void MM_DumpData (global_game_variables_t *gvar);
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206 dword MM_UnusedMemory (global_game_variables_t *gvar);
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207 dword MM_TotalFree (global_game_variables_t *gvar);
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208 void MM_Report_ (global_game_variables_t *gvar);
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209 /*static */void MM_EMSerr (byte *stri, byte err);
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210 void MM_BombOnError (boolean bomb, global_game_variables_t *gvar);
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211 //void MM_GetNewBlock(mminfo_t *mm);
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212 //void MM_FreeBlock(mmblocktype *x, mminfo_t *mm);
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213 void xms_call (byte v, global_game_variables_t *gvar);
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215 //==========================================================================
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