forked from KolibriOS/kolibrios
78 lines
3.3 KiB
C
78 lines
3.3 KiB
C
|
/*
|
||
|
|
* DrZ80 Version 1.0
|
||
|
|
* Z80 Emulator by Reesy
|
||
|
|
* Copyright 2005 Reesy
|
||
|
|
*
|
||
|
|
* This file is part of DrZ80.
|
||
|
|
*
|
||
|
|
* DrZ80 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.
|
||
|
|
*
|
||
|
|
* DrZ80 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 General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with DrZ80; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef DRZ80_H
|
||
|
|
#define DRZ80_H
|
||
|
|
|
||
|
|
extern int DrZ80Ver; /* Version number of library */
|
||
|
|
|
||
|
|
struct DrZ80
|
||
|
|
{
|
||
|
|
unsigned int Z80PC; /*0x00 - PC Program Counter (Memory Base + PC) */
|
||
|
|
unsigned int Z80A; /*0x04 - A Register: 0xAA------ */
|
||
|
|
unsigned int Z80F; /*0x08 - F Register: 0x------FF */
|
||
|
|
unsigned int Z80BC; /*0x0C - BC Registers: 0xBBCC---- */
|
||
|
|
unsigned int Z80DE; /*0x10 - DE Registers: 0xDDEE---- */
|
||
|
|
unsigned int Z80HL; /*0x14 - HL Registers: 0xHHLL---- */
|
||
|
|
unsigned int Z80SP; /*0x18 - SP Stack Pointer (Memory Base + PC) */
|
||
|
|
unsigned int Z80PC_BASE; /*0x1C - PC Program Counter (Memory Base) */
|
||
|
|
unsigned int Z80SP_BASE; /*0x20 - SP Stack Pointer (Memory Base) */
|
||
|
|
unsigned int Z80IX; /*0x24 - IX Index Register 0xIXIX---- */
|
||
|
|
unsigned int Z80IY; /*0x28 - IY Index Register 0xIYIY---- */
|
||
|
|
unsigned int Z80I; /*0x2C - I Interrupt Register */
|
||
|
|
unsigned int Z80A2; /*0x30 - A' Register: 0xAA------ */
|
||
|
|
unsigned int Z80F2; /*0x34 - F' Register: 0xFF------ */
|
||
|
|
unsigned int Z80BC2; /*0x38 - B'C' Registers: 0xBBCC---- */
|
||
|
|
unsigned int Z80DE2; /*0x3C - D'E' Registers: 0xDDEE---- */
|
||
|
|
unsigned int Z80HL2; /*0x40 - H'L' Registers: 0xHHLL---- */
|
||
|
|
int cycles; /*0x44 - Cycles pending to be executed yet */
|
||
|
|
int previouspc; /*0x48 - Previous PC */
|
||
|
|
unsigned char Z80_IRQ; /*0x4C - Set IRQ Number (must be halfword aligned) */
|
||
|
|
unsigned char Z80IF; /*0x4D - Interrupt Flags: bit1=_IFF1, bit2=_IFF2, bit3=_HALT */
|
||
|
|
unsigned char Z80IM; /*0x4E - Set IRQ Mode */
|
||
|
|
unsigned char Z80R; /*0x4F - R register */
|
||
|
|
unsigned int z80irqvector; /*0x50 - Set IRQ Vector i.e. 0xFF=RST */
|
||
|
|
void (*z80_irq_callback )(void);
|
||
|
|
void (*z80_write8 )(unsigned char d,unsigned short a);
|
||
|
|
void (*z80_write16 )(unsigned short d,unsigned short a);
|
||
|
|
unsigned char (*z80_in)(unsigned short p);
|
||
|
|
void (*z80_out )(unsigned short p,unsigned char d);
|
||
|
|
unsigned char (*z80_read8)(unsigned short a);
|
||
|
|
unsigned short (*z80_read16)(unsigned short a);
|
||
|
|
unsigned int (*z80_rebaseSP)(unsigned short new_sp);
|
||
|
|
unsigned int (*z80_rebasePC)(unsigned short new_pc);
|
||
|
|
unsigned int bla;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern int DrZ80Run(struct DrZ80 *pcy,unsigned int cyc);
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
} /* End of extern "C" */
|
||
|
|
#endif
|