shithub: wl3d

ref: a0c3c62fcd25dd62d5c69353a604d3f6afbaa75b
dir: /mm.h/

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// ID_MM.H

#ifndef __ID_CA__

#define __ID_CA__

#define SAVENEARHEAP	0x400		// space to leave in data segment
#define SAVEFARHEAP		0			// space to leave in far heap

#define	BUFFERSIZE		0x1000		// miscelanious, allways available buffer

#define MAXBLOCKS		700


//--------

#define	EMS_INT			0x67

#define	EMS_STATUS		0x40
#define	EMS_GETFRAME	0x41
#define	EMS_GETPAGES	0x42
#define	EMS_ALLOCPAGES	0x43
#define	EMS_MAPPAGE		0x44
#define	EMS_FREEPAGES	0x45
#define	EMS_VERSION		0x46

//--------

#define	XMS_INT			0x2f
#define	XMS_CALL(v)		_AH = (v);\
						asm call [DWORD PTR XMSDriver]

#define	XMS_VERSION		0x00

#define	XMS_ALLOCHMA	0x01
#define	XMS_FREEHMA		0x02

#define	XMS_GENABLEA20	0x03
#define	XMS_GDISABLEA20	0x04
#define	XMS_LENABLEA20	0x05
#define	XMS_LDISABLEA20	0x06
#define	XMS_QUERYA20	0x07

#define	XMS_QUERYFREE	0x08
#define	XMS_ALLOC		0x09
#define	XMS_FREE		0x0A
#define	XMS_MOVE		0x0B
#define	XMS_LOCK		0x0C
#define	XMS_UNLOCK		0x0D
#define	XMS_GETINFO		0x0E
#define	XMS_RESIZE		0x0F

#define	XMS_ALLOCUMB	0x10
#define	XMS_FREEUMB		0x11

//==========================================================================

typedef struct
{
	s32int	nearheap,farheap,EMSmem,XMSmem,mainmem;
} mminfotype;

//==========================================================================

extern	mminfotype	mminfo;
extern	uchar *bufferseg;
extern	int		mmerror;

extern	void		(* beforesort) (void);
extern	void		(* aftersort) (void);

//==========================================================================

void MM_Startup (void);
void MM_Shutdown (void);
void MM_MapEMS (void);

void MM_GetPtr (uchar **baseptr,u32int size);
void MM_FreePtr (uchar **baseptr);

void MM_SetPurge (uchar **baseptr, s16int purge);
void MM_SetLock (uchar **baseptr, int locked);
void MM_SortMem (void);

void MM_ShowMemory (void);

s32int MM_UnusedMemory (void);
s32int MM_TotalFree (void);

void MM_BombOnError (int bomb);

void MML_UseSpace (u16int segstart, u16int seglength);

#endif