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First CVS upload.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@80
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Sjoerd van der Berg 2002-07-27 13:08:48 +00:00
parent 7d1ca9bdd4
commit 42e5d0b779
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include/regs.h Normal file
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/*
* Copyright (C) 2002 The DOSBox Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if !defined __REGS_H
#define __REGS_H
#include <mem.h>
struct Flag_Info {
union {
Bit8u b;
Bit16u w;
Bit32u d;
} var1,var2,result;
Bitu type;
Bitu prev_type;
bool cf,sf,pf,af,zf,of,df,tf,intf;
bool nt;
Bit8u io;
bool oldcf;
};
struct Segment {
Bit16u value;
bool special; /* Signal for pointing to special memory */
HostPt host; /* The address of start in host memory */
PhysPt phys; /* The phyiscal address start in emulated machine */
};
enum { cs=0,ds,es,fs,gs,ss};
extern Segment Segs[6];
extern Flag_Info flags;
//extern Regs regs;
void SetSegment_16(Bit32u seg,Bit16u val);
struct CPU_Regs {
union {
Bit32u d;
Bit16u w;
struct {
Bit8u l,h;
}b;
} ax,bx,cx,dx,si,di,sp,bp,ip;
};
extern CPU_Regs cpu_regs;
#define reg_al cpu_regs.ax.b.l
//extern Bit8u & reg_al=cpu_regs.ax.b.l;
#define reg_ah cpu_regs.ax.b.h
#define reg_ax cpu_regs.ax.w
#define reg_eax cpu_regs.ax.d
#define reg_bl cpu_regs.bx.b.l
#define reg_bh cpu_regs.bx.b.h
#define reg_bx cpu_regs.bx.w
#define reg_ebx cpu_regs.bx.d
#define reg_cl cpu_regs.cx.b.l
#define reg_ch cpu_regs.cx.b.h
#define reg_cx cpu_regs.cx.w
#define reg_ecx cpu_regs.cx.d
#define reg_dl cpu_regs.dx.b.l
#define reg_dh cpu_regs.dx.b.h
#define reg_dx cpu_regs.dx.w
#define reg_edx cpu_regs.dx.d
#define reg_si cpu_regs.si.w
#define reg_esi cpu_regs.si.d
#define reg_di cpu_regs.di.w
#define reg_edi cpu_regs.di.d
#define reg_sp cpu_regs.sp.w
#define reg_esp cpu_regs.sp.d
#define reg_bp cpu_regs.bp.w
#define reg_ebp cpu_regs.bp.d
#define reg_ip cpu_regs.ip.w
#define reg_eip cpu_regs.ip.d
#endif