1*0a6a1f1dSLionel Sambuc /* $NetBSD: bioscall.h,v 1.11 2008/04/28 20:23:24 martin Exp $ */ 2*0a6a1f1dSLionel Sambuc 3*0a6a1f1dSLionel Sambuc /*- 4*0a6a1f1dSLionel Sambuc * Copyright (c) 1997, 2000 The NetBSD Foundation, Inc. 5*0a6a1f1dSLionel Sambuc * All rights reserved. 6*0a6a1f1dSLionel Sambuc * 7*0a6a1f1dSLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation 8*0a6a1f1dSLionel Sambuc * by John Kohl and Jason R. Thorpe. 9*0a6a1f1dSLionel Sambuc * 10*0a6a1f1dSLionel Sambuc * Redistribution and use in source and binary forms, with or without 11*0a6a1f1dSLionel Sambuc * modification, are permitted provided that the following conditions 12*0a6a1f1dSLionel Sambuc * are met: 13*0a6a1f1dSLionel Sambuc * 1. Redistributions of source code must retain the above copyright 14*0a6a1f1dSLionel Sambuc * notice, this list of conditions and the following disclaimer. 15*0a6a1f1dSLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright 16*0a6a1f1dSLionel Sambuc * notice, this list of conditions and the following disclaimer in the 17*0a6a1f1dSLionel Sambuc * documentation and/or other materials provided with the distribution. 18*0a6a1f1dSLionel Sambuc * 19*0a6a1f1dSLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*0a6a1f1dSLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*0a6a1f1dSLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*0a6a1f1dSLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*0a6a1f1dSLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*0a6a1f1dSLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*0a6a1f1dSLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*0a6a1f1dSLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*0a6a1f1dSLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*0a6a1f1dSLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*0a6a1f1dSLionel Sambuc * POSSIBILITY OF SUCH DAMAGE. 30*0a6a1f1dSLionel Sambuc */ 31*0a6a1f1dSLionel Sambuc 32*0a6a1f1dSLionel Sambuc #ifndef __I386_BIOSCALL_H__ 33*0a6a1f1dSLionel Sambuc #define __I386_BIOSCALL_H__ 34*0a6a1f1dSLionel Sambuc 35*0a6a1f1dSLionel Sambuc /* 36*0a6a1f1dSLionel Sambuc * virtual & physical address of the trampoline 37*0a6a1f1dSLionel Sambuc * that we use: page 1. 38*0a6a1f1dSLionel Sambuc */ 39*0a6a1f1dSLionel Sambuc #define BIOSTRAMP_BASE PAGE_SIZE 40*0a6a1f1dSLionel Sambuc 41*0a6a1f1dSLionel Sambuc #ifndef _LOCORE 42*0a6a1f1dSLionel Sambuc #define BIOSREG_LO 0 43*0a6a1f1dSLionel Sambuc #define BIOSREG_HI 1 44*0a6a1f1dSLionel Sambuc 45*0a6a1f1dSLionel Sambuc typedef union { 46*0a6a1f1dSLionel Sambuc u_char biosreg_quarter[4]; 47*0a6a1f1dSLionel Sambuc u_short biosreg_half[2]; 48*0a6a1f1dSLionel Sambuc u_int biosreg_long; 49*0a6a1f1dSLionel Sambuc } bios_reg; 50*0a6a1f1dSLionel Sambuc 51*0a6a1f1dSLionel Sambuc struct bioscallregs { 52*0a6a1f1dSLionel Sambuc bios_reg r_ax; 53*0a6a1f1dSLionel Sambuc bios_reg r_bx; 54*0a6a1f1dSLionel Sambuc bios_reg r_cx; 55*0a6a1f1dSLionel Sambuc bios_reg r_dx; 56*0a6a1f1dSLionel Sambuc bios_reg r_si; 57*0a6a1f1dSLionel Sambuc bios_reg r_di; 58*0a6a1f1dSLionel Sambuc bios_reg r_flags; 59*0a6a1f1dSLionel Sambuc bios_reg r_es; 60*0a6a1f1dSLionel Sambuc }; 61*0a6a1f1dSLionel Sambuc 62*0a6a1f1dSLionel Sambuc #define AL r_ax.biosreg_quarter[BIOSREG_LO] 63*0a6a1f1dSLionel Sambuc #define AH r_ax.biosreg_quarter[BIOSREG_HI] 64*0a6a1f1dSLionel Sambuc #define AX r_ax.biosreg_half[BIOSREG_LO] 65*0a6a1f1dSLionel Sambuc #define AX_HI r_ax.biosreg_half[BIOSREG_HI] 66*0a6a1f1dSLionel Sambuc #define EAX r_ax.biosreg_long 67*0a6a1f1dSLionel Sambuc 68*0a6a1f1dSLionel Sambuc #define BL r_bx.biosreg_quarter[BIOSREG_LO] 69*0a6a1f1dSLionel Sambuc #define BH r_bx.biosreg_quarter[BIOSREG_HI] 70*0a6a1f1dSLionel Sambuc #define BX r_bx.biosreg_half[BIOSREG_LO] 71*0a6a1f1dSLionel Sambuc #define BX_HI r_bx.biosreg_half[BIOSREG_HI] 72*0a6a1f1dSLionel Sambuc #define EBX r_bx.biosreg_long 73*0a6a1f1dSLionel Sambuc 74*0a6a1f1dSLionel Sambuc #define CL r_cx.biosreg_quarter[BIOSREG_LO] 75*0a6a1f1dSLionel Sambuc #define CH r_cx.biosreg_quarter[BIOSREG_HI] 76*0a6a1f1dSLionel Sambuc #define CX r_cx.biosreg_half[BIOSREG_LO] 77*0a6a1f1dSLionel Sambuc #define CX_HI r_cx.biosreg_half[BIOSREG_HI] 78*0a6a1f1dSLionel Sambuc #define ECX r_cx.biosreg_long 79*0a6a1f1dSLionel Sambuc 80*0a6a1f1dSLionel Sambuc #define DL r_dx.biosreg_quarter[BIOSREG_LO] 81*0a6a1f1dSLionel Sambuc #define DH r_dx.biosreg_quarter[BIOSREG_HI] 82*0a6a1f1dSLionel Sambuc #define DX r_dx.biosreg_half[BIOSREG_LO] 83*0a6a1f1dSLionel Sambuc #define DX_HI r_dx.biosreg_half[BIOSREG_HI] 84*0a6a1f1dSLionel Sambuc #define EDX r_dx.biosreg_long 85*0a6a1f1dSLionel Sambuc 86*0a6a1f1dSLionel Sambuc #define SI r_si.biosreg_half[BIOSREG_LO] 87*0a6a1f1dSLionel Sambuc #define SI_HI r_si.biosreg_half[BIOSREG_HI] 88*0a6a1f1dSLionel Sambuc #define ESI r_si.biosreg_long 89*0a6a1f1dSLionel Sambuc 90*0a6a1f1dSLionel Sambuc #define DI r_di.biosreg_half[BIOSREG_LO] 91*0a6a1f1dSLionel Sambuc #define DI_HI r_di.biosreg_half[BIOSREG_HI] 92*0a6a1f1dSLionel Sambuc #define EDI r_di.biosreg_long 93*0a6a1f1dSLionel Sambuc 94*0a6a1f1dSLionel Sambuc #define FLAGS r_flags.biosreg_half[BIOSREG_LO] 95*0a6a1f1dSLionel Sambuc #define FLAGS_HI r_flags.biosreg_half[BIOSREG_HI] 96*0a6a1f1dSLionel Sambuc #define EFLAGS r_flags.biosreg_long 97*0a6a1f1dSLionel Sambuc 98*0a6a1f1dSLionel Sambuc #define ES r_es.biosreg_half[BIOSREG_LO] 99*0a6a1f1dSLionel Sambuc 100*0a6a1f1dSLionel Sambuc void bioscall(int /* function*/ , struct bioscallregs * /* regs */); 101*0a6a1f1dSLionel Sambuc #endif 102*0a6a1f1dSLionel Sambuc #endif /* __I386_BIOSCALL_H__ */ 103