The Wolfenstein 3D source as originally released.

WOLFSRC/ID_MM.H

@@ -0,0 +1,96 @@
+// 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 void _seg * memptr;
+
+typedef struct
+{
+	long	nearheap,farheap,EMSmem,XMSmem,mainmem;
+} mminfotype;
+
+//==========================================================================
+
+extern	mminfotype	mminfo;
+extern	memptr		bufferseg;
+extern	boolean		mmerror;
+
+extern	void		(* beforesort) (void);
+extern	void		(* aftersort) (void);
+
+//==========================================================================
+
+void MM_Startup (void);
+void MM_Shutdown (void);
+void MM_MapEMS (void);
+
+void MM_GetPtr (memptr *baseptr,unsigned long size);
+void MM_FreePtr (memptr *baseptr);
+
+void MM_SetPurge (memptr *baseptr, int purge);
+void MM_SetLock (memptr *baseptr, boolean locked);
+void MM_SortMem (void);
+
+void MM_ShowMemory (void);
+
+long MM_UnusedMemory (void);
+long MM_TotalFree (void);
+
+void MM_BombOnError (boolean bomb);
+
+void MML_UseSpace (unsigned segstart, unsigned seglength);
+
+#endif