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Length: 2225 (0x8b1)
Types: TextFile
Notes: UNIX file
Names: »tss.h«
└─⟦a6ab2eb36⟧ Bits:30004042/kconfig3.imd SW95705I 386/ix Multi-user Release 1.2
└─⟦a6ab2eb36⟧ UNIX Filesystem
└─⟦this⟧ »kc/new/usr/include/sys/tss.h«
/* Copyright (c) 1987 AT&T */
/* All Rights Reserved */
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
/* The copyright notice above does not evidence any */
/* actual or intended publication of such source code. */
#ident "@(#)tss.h 1.6 - 88/04/29"
/* Flags Register */
typedef struct flags {
uint fl_cf : 1, /* carry/borrow */
: 1, /* reserved */
fl_pf : 1, /* parity */
: 1, /* reserved */
fl_af : 1, /* carry/borrow */
: 1, /* reserved */
fl_zf : 1, /* zero */
fl_sf : 1, /* sign */
fl_tf : 1, /* trace */
fl_if : 1, /* interrupt enable */
fl_df : 1, /* direction */
fl_of : 1, /* overflow */
fl_iopl : 2, /* I/O privilege level */
fl_nt : 1, /* nested task */
: 1, /* reserved */
fl_rf : 1, /* reset */
fl_vm : 1, /* virtual 86 mode */
fl_res : 14; /* reserved */
} flags_t;
#define PS_C 0x0001 /* carry bit */
#define PS_P 0x0004 /* parity bit */
#define PS_AC 0x0010 /* auxiliary carry bit */
#define PS_Z 0x0040 /* zero bit */
#define PS_N 0x0080 /* negative bit */
#define PS_T 0x0100 /* trace enable bit */
#define PS_IE 0x0200 /* interrupt enable bit */
#define PS_D 0x0400 /* direction bit */
#define PS_V 0x0800 /* overflow bit */
#define PS_IOPL 0x3000 /* I/O privilege level */
#define PS_NT 0x4000 /* nested task flag */
#define PS_RF 0x10000 /* Reset flag */
#define PS_VM 0x20000 /* Virtual 86 mode flag */
/*
* Maximum I/O address that will be in TSS bitmap
*/
#define MAXTSSIOADDR 0x3ff
/*
* 386 TSS definition
*/
struct tss386 {
unsigned long t_link;
unsigned long t_esp0;
unsigned long t_ss0;
unsigned long t_esp1;
unsigned long t_ss1;
unsigned long t_esp2;
unsigned long t_ss2;
paddr_t t_cr3;
unsigned long t_eip;
unsigned long t_eflags;
unsigned long t_eax;
unsigned long t_ecx;
unsigned long t_edx;
unsigned long t_ebx;
unsigned long t_esp;
unsigned long t_ebp;
unsigned long t_esi;
unsigned long t_edi;
unsigned long t_es;
unsigned long t_cs;
unsigned long t_ss;
unsigned long t_ds;
unsigned long t_fs;
unsigned long t_gs;
unsigned long t_ldt;
unsigned long t_bitmapbase;
};
#define PS_USER 3
#define PS_KERNEL 0