275 lines
7.1 KiB
C
275 lines
7.1 KiB
C
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/*
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* i86.h Defines the structs and unions used to handle the input and
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* output registers for the Intel x86 and 386 interrupt interface
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* routines.
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*
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* =========================================================================
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*
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* Open Watcom Project
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*
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* Copyright (c) 2002-2010 Open Watcom Contributors. All Rights Reserved.
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* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*
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* This file is automatically generated. Do not edit directly.
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*
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* =========================================================================
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*/
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#ifndef _I86_H_INCLUDED
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#define _I86_H_INCLUDED
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#ifndef _ENABLE_AUTODEPEND
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#pragma read_only_file;
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#endif
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#if !defined(_M_IX86)
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#error i86.h is for use with Intel platforms
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#endif
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#ifndef _COMDEF_H_INCLUDED
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#include <_comdef.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef _M_IX86
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#pragma pack( __push, 1 )
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#else
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#pragma pack( __push, 8 )
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#endif
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#undef __FILLER
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#if defined(_M_I86) || defined(__WINDOWS_386__)
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#define __FILLER(a)
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#else
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#define __FILLER(a) unsigned short a;
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#endif
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#if !defined(_M_I86) && !defined(__WINDOWS_386__)
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/* dword registers */
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struct DWORDREGS {
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unsigned int eax;
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unsigned int ebx;
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unsigned int ecx;
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unsigned int edx;
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unsigned int esi;
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unsigned int edi;
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unsigned int cflag;
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};
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#endif
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/* word registers */
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struct WORDREGS {
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unsigned short ax; __FILLER(_1)
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unsigned short bx; __FILLER(_2)
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unsigned short cx; __FILLER(_3)
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unsigned short dx; __FILLER(_4)
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unsigned short si; __FILLER(_5)
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unsigned short di; __FILLER(_6)
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#if defined(__WINDOWS_386__)
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unsigned short cflag;
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#else
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unsigned int cflag;
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#endif
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};
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/* byte registers */
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struct BYTEREGS {
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unsigned char al, ah; __FILLER(_1)
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unsigned char bl, bh; __FILLER(_2)
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unsigned char cl, ch; __FILLER(_3)
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unsigned char dl, dh; __FILLER(_4)
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};
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/* general purpose registers union - overlays the corresponding dword,
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* word, and byte registers.
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*/
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union REGS {
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#if defined(_M_I86) || defined(__WINDOWS_386__)
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struct WORDREGS x;
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#else
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struct DWORDREGS x;
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#endif
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struct WORDREGS w;
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struct BYTEREGS h;
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};
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#define _REGS REGS
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/* segment registers */
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struct SREGS {
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unsigned short es, cs, ss, ds;
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#if !defined(_M_I86)
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unsigned short fs, gs;
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#endif
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};
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#define _SREGS SREGS
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/* intr structs */
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struct REGPACKB {
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unsigned char al, ah; __FILLER(_1)
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unsigned char bl, bh; __FILLER(_2)
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unsigned char cl, ch; __FILLER(_3)
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unsigned char dl, dh; __FILLER(_4)
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};
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struct REGPACKW {
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unsigned short ax; __FILLER(_1)
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unsigned short bx; __FILLER(_2)
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unsigned short cx; __FILLER(_3)
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unsigned short dx; __FILLER(_4)
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unsigned short bp; __FILLER(_5)
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unsigned short si; __FILLER(_6)
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unsigned short di; __FILLER(_7)
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unsigned short ds;
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unsigned short es;
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#if !defined(_M_I86) && !defined(__WINDOWS_386__)
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unsigned short fs;
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unsigned short gs;
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#endif
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#if defined(__WINDOWS_386__)
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unsigned short flags;
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#else
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unsigned int flags;
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#endif
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};
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struct REGPACKX {
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unsigned int eax, ebx, ecx, edx, ebp, esi, edi;
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unsigned short ds, es, fs, gs;
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unsigned int flags;
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};
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union REGPACK {
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struct REGPACKB h;
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struct REGPACKW w;
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#if defined(_M_I86) || defined(__WINDOWS_386__)
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struct REGPACKW x;
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#else
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struct REGPACKX x;
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#endif
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};
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/* input parm to an 'interrupt' function is union INTPACK */
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/* e.g. interrupt int10( union INTPACK r ) {} */
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struct INTPACKX {
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unsigned gs,fs,es,ds,edi,esi,ebp,esp,ebx,edx,ecx,eax,eip,cs,flags;
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};
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/*
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NOTE: The gs and fs fields will not be correct unless the compiler
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is invoked with at least the /3 switch.
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*/
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struct INTPACKW {
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unsigned short gs; __FILLER(_1)
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unsigned short fs; __FILLER(_2)
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unsigned short es; __FILLER(_3)
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unsigned short ds; __FILLER(_4)
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unsigned short di; __FILLER(_5)
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unsigned short si; __FILLER(_6)
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unsigned short bp; __FILLER(_7)
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unsigned short sp; __FILLER(_8)
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unsigned short bx; __FILLER(_9)
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unsigned short dx; __FILLER(_a)
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unsigned short cx; __FILLER(_b)
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unsigned short ax; __FILLER(_c)
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unsigned short ip; __FILLER(_d)
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unsigned short cs; __FILLER(_e)
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unsigned flags;
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};
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struct INTPACKB {
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#if defined(_M_I86)
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unsigned /*gs*/:16,/*fs*/:16,
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/*es*/:16,/*ds*/:16,
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/*di*/:16,/*si*/:16,
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/*bp*/:16,/*sp*/:16;
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#else
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unsigned /*gs*/ :32,/*fs*/ :32,
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/*es*/ :32,/*ds*/ :32,
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/*edi*/:32,/*esi*/:32,
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/*ebp*/:32,/*esp*/:32;
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#endif
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unsigned char bl, bh; __FILLER(_1)
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unsigned char dl, dh; __FILLER(_2)
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unsigned char cl, ch; __FILLER(_3)
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unsigned char al, ah; __FILLER(_4)
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};
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union INTPACK {
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struct INTPACKB h;
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struct INTPACKW w;
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#if defined(_M_I86)
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struct INTPACKW x;
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#else
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struct INTPACKX x;
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#endif
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};
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/* bits defined for flags field defined in REGPACKW and INTPACKW */
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enum {
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INTR_CF = 0x0001, /* carry */
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INTR_PF = 0x0004, /* parity */
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INTR_AF = 0x0010, /* auxiliary carry */
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INTR_ZF = 0x0040, /* zero */
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INTR_SF = 0x0080, /* sign */
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INTR_TF = 0x0100, /* trace */
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INTR_IF = 0x0200, /* interrupt */
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INTR_DF = 0x0400, /* direction */
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INTR_OF = 0x0800 /* overflow */
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};
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_WCIRTLINK extern void _disable( void );
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_WCIRTLINK extern void _enable( void );
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#ifdef __INLINE_FUNCTIONS__
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#pragma intrinsic(_disable,_enable)
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#endif
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_WCRTLINK extern void delay(unsigned int __milliseconds);
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#if defined(_M_I86) || defined(__WINDOWS_386__)
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_WCRTLINK extern int int86( int, union REGS *, union REGS * );
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_WCRTLINK extern int int86x( int, union REGS *, union REGS *,
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struct SREGS * );
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#else
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_WCRTLINK extern int int386( int, union REGS *, union REGS * );
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_WCRTLINK extern int int386x( int, union REGS *, union REGS *,
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struct SREGS * );
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#endif
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_WCRTLINK extern void intr( int, union REGPACK * );
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_WCRTLINK extern void nosound( void );
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_WCRTLINK extern void segread( struct SREGS * );
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_WCRTLINK extern void sound( unsigned __frequency );
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/* macros to break 'far' pointers into segment and offset components */
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#define FP_OFF(__p) ((unsigned)(__p))
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#define _FP_OFF(__p) ((unsigned)(__p))
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#if defined(_M_I86)
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#define FP_SEG(__p) ((unsigned)((unsigned long)(void __far*)(__p) >> 16))
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#else
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unsigned short FP_SEG( const volatile void __far * );
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#pragma aux FP_SEG = __parm __caller [eax dx] __value [dx];
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#endif
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#define _FP_SEG FP_SEG
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/* make a far pointer from segment and offset */
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#define MK_FP(__s,__o) (((unsigned short)(__s)):>((void __near *)(__o)))
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#pragma pack( __pop )
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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