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/* This is file GDT.H */
/*
** Copyright (C) 1993 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.
*/
/* Modified for VCPI Implement by Y.Shibata Aug 5th 1991 */
/* History:28,1 */
#include "gotypes.h"
typedef struct GDT_S {
word16 lim0;
word16 base0;
word8 base1;
word8 stype; /* type, DT, DPL, present */
word8 lim1; /* limit, granularity */
word8 base2;
} GDT_S;
#define g_zero 0
#define g_gdt 1
#define g_idt 2
#define g_rcode 3
#define g_rdata 4
#define g_pcode 5
#define g_pdata 6
#define g_core 7
/* CB change: this is needed to map the BIOS data seg at 0x400 to selector 0x40 */
/* this makes several VESA BIOS paging functions work in protected mode */
/* OLD:
* #define g_acode 8
*/
#define g_BIOSdata 8
/* end CB change */
#define g_adata 9
#define g_ctss 10
#define g_atss 11 /* set according to tss_ptr in go32() */
#define g_ptss 12
#define g_itss 13
#define g_rc32 14 /* for NPX utils */
#define g_grdr 15
#define g_vcpicode 16 /* for VCPI Call Selector in Protect Mode */
#define g_vcpireserve0 17
#define g_vcpireserve1 18
#define g_v74 19
#define g_v78 20
#define g_v79 21
#define g_altc 22
#define g_edcs 23 /* external debugger */
#define g_edds 24
#define g_edtss 25
#define g_rtss 26
/* CB change: relocated arena code and VESA paging func selector */
/* OLD:
* #define g_num 27
*/
#define g_acode 27
#define g_VESAfunc 28
#define g_num 29
/* end CB change */
extern GDT_S gdt[g_num];
extern word32 ARENA;
extern word16 core_selector;
extern word16 arena_cs;
extern word16 arena_ds;
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.