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- /*
- * 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 */
- unsigned int Z80IY; /*0x28 - IY Index Register */
- unsigned int Z80I; /*0x2C - I Interrupt Register */
- unsigned int Z80A2; /*0x30 - A' Register: 0xAA------ */
- unsigned int Z80F2; /*0x34 - F' Register: 0x------FF */
- 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: bit0=_IFF1, bit1=_IFF2, bit2=_HALT, b3=NMI */
- unsigned char Z80IM; /*0x4E - Set IRQ Mode */
- unsigned char spare; /*0x4F - N/A */
- 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
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