121 lines
No EOL
2.7 KiB
C
121 lines
No EOL
2.7 KiB
C
// ID_MM.H
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#ifndef __ID_CA__
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#define __ID_CA__
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#define SAVENEARHEAP 0x400 // space to leave in data segment
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#define SAVEFARHEAP 0 // space to leave in far heap
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#define BUFFERSIZE 0x1000 // miscelanious, allways available buffer
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#define MAXBLOCKS 600
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//--------
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#define EMS_INT 0x67
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#define EMS_STATUS 0x40
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#define EMS_GETFRAME 0x41
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#define EMS_GETPAGES 0x42
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#define EMS_ALLOCPAGES 0x43
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#define EMS_MAPPAGE 0x44
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#define EMS_FREEPAGES 0x45
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#define EMS_VERSION 0x46
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//--------
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#define XMS_INT 0x2f
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#define XMS_CALL(v) _AH = (v);\
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asm call [DWORD PTR XMSDriver]
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#define XMS_VERSION 0x00
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#define XMS_ALLOCHMA 0x01
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#define XMS_FREEHMA 0x02
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#define XMS_GENABLEA20 0x03
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#define XMS_GDISABLEA20 0x04
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#define XMS_LENABLEA20 0x05
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#define XMS_LDISABLEA20 0x06
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#define XMS_QUERYA20 0x07
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#define XMS_QUERYFREE 0x08
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#define XMS_ALLOC 0x09
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#define XMS_FREE 0x0A
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#define XMS_MOVE 0x0B
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#define XMS_LOCK 0x0C
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#define XMS_UNLOCK 0x0D
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#define XMS_GETINFO 0x0E
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#define XMS_RESIZE 0x0F
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#define XMS_ALLOCUMB 0x10
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#define XMS_FREEUMB 0x11
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//==========================================================================
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typedef void _seg * memptr;
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typedef struct
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{
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long nearheap,farheap,EMSmem,XMSmem,mainmem;
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} mminfotype;
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//==========================================================================
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extern unsigned blockcount;
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extern mminfotype mminfo;
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extern memptr bufferseg;
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extern boolean mmerror;
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//unsigned __SEGS_AVAILABLE__;
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unsigned long __PUR_MEM_AVAIL__;
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unsigned long __FREE_MEM_AVAIL__;
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extern void (* beforesort) (void);
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extern void (* aftersort) (void);
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extern char far *gp_fartext;
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//==========================================================================
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void MM_Startup (void);
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void MM_Shutdown (void);
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void MM_MapEMS (void);
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void MM_GetPtr (memptr *baseptr,unsigned long size);
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void MM_FreePtr (memptr *baseptr);
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void MM_SetPurge (memptr *baseptr, int purge);
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void MM_SetLock (memptr *baseptr, boolean locked);
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void MM_SortMem (void);
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void MM_ShowMemory (void);
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long MM_UnusedMemory (void);
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long MM_TotalFree (void);
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long MM_LargestAvail (void);
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void MM_BombOnError (boolean bomb);
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void MML_UseSpace (unsigned segstart, unsigned seglength);
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#define LOCKBIT 0x80 // if set in attributes, block cannot be moved
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#if IN_DEVELOPMENT
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#define GETNEWBLOCK {if(!mmfree)MML_ClearBlock();mmnew=mmfree;mmfree=mmfree->next;blockcount++;}
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#else
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#define GETNEWBLOCK {if(!mmfree)MML_ClearBlock();mmnew=mmfree;mmfree=mmfree->next;}
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#endif
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typedef struct mmblockstruct
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{
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unsigned start,length;
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unsigned attributes;
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memptr *useptr; // pointer to the segment start
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struct mmblockstruct far *next;
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} mmblocktype;
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#endif |