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PAGING.H
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C/C++ Source or Header
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1992-04-13
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/* This is file PAGING.H */
/*
** Copyright (C) 1991 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
**
** This file is distributed under the terms listed in the document
** "copying.dj", available from DJ Delorie at the address above.
** A copy of "copying.dj" should accompany this file; if not, a copy
** should be available from where this file was obtained. This file
** may not be distributed without a verbatim copy of "copying.dj".
**
** This file is distributed WITHOUT ANY WARRANTY; without even the implied
** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef _PAGING_H_
#define _PAGING_H_
/* active if set */
#define PT_P 0x001 /* present (else not) */
#define PT_W 0x002 /* writable (else read-only) */
#define PT_U 0x004 /* user mode (else kernel mode) */
#define PT_A 0x020 /* accessed (else not) */
#define PT_D 0x040 /* dirty (else clean) */
#define PT_I 0x200 /* Initialized (else not read from a.out file yet) */
#define PT_S 0x400 /* Swappable (else not) */
#define PT_C 0x800 /* Candidate for swapping */
#define EMU_TEXT 0xb0000000
/* If not present and initialized, page is in swap file.
** If not present and not initialized, page is in a.out file.
*/
word32 paging_brk(word32 b);
word32 paging_sbrk(int32 b);
int emu_install(char *filename); /* returns 1 if installed, 0 if not */
#endif