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/***************************************************************************
sid6510c.h - Special MOS6510 to be fully
compatible with sidplay
-------------------
begin : Thu May 11 2000
copyright : (C) 2000 by Simon White
email : s_a_white@email.com
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
/***************************************************************************
* $Log: sid6510c.h,v $
* Revision 1.16 2002/11/25 21:07:32 s_a_white
* Allow setting of program counter on reset.
*
* Revision 1.15 2002/11/21 19:52:48 s_a_white
* CPU upgraded to be like other components. Theres nolonger a clock call,
* instead events are registered to occur at a specific time.
*
* Revision 1.14 2002/11/19 22:56:25 s_a_white
* Sidplay1 modes modified to make them nolonger require the psid driver.
*
* Revision 1.13 2002/11/01 17:35:27 s_a_white
* Frame based support for old sidplay1 modes.
*
* Revision 1.12 2002/03/12 18:47:13 s_a_white
* Made IRQ in sidplay1 compatibility modes behaves like JSR. This fixes tunes
* that have kernel switched out.
*
* Revision 1.11 2002/02/07 18:02:10 s_a_white
* Real C64 compatibility fixes. Debug of BRK works again. Fixed illegal
* instructions to work like sidplay1.
*
* Revision 1.10 2002/02/04 23:53:23 s_a_white
* Improved compatibilty of older sidplay1 modes. Fixed BRK to work like sidplay1
* only when stack is 0xff in real mode for better compatibility with C64.
*
* Revision 1.9 2001/09/01 11:08:06 s_a_white
* Fixes for sidplay1 environment modes.
*
* Revision 1.8 2001/07/14 13:18:15 s_a_white
* Stack & PC invalid tests now only performed on a BRK.
*
* Revision 1.7 2001/03/24 18:09:17 s_a_white
* On entry to interrupt routine the first instruction in the handler is now always
* executed before pending interrupts are re-checked.
*
* Revision 1.6 2001/03/22 22:40:07 s_a_white
* Replaced tabs characters.
*
* Revision 1.5 2001/03/21 22:26:13 s_a_white
* Fake interrupts now been moved into here from player.cpp. At anytime it's
* now possible to ditch this compatibility class and use the real thing.
*
* Revision 1.4 2001/03/09 22:28:03 s_a_white
* Speed optimisation update.
*
* Revision 1.3 2001/02/13 21:02:25 s_a_white
* Small tidy up and possibly a small performace increase.
*
* Revision 1.2 2000/12/11 19:04:32 s_a_white
* AC99 Update.
*
***************************************************************************/
#ifndef _sid6510c_h_
#define _sid6510c_h_
#include "mos6510c.h"
#include "sid2types.h"
class SID6510: public MOS6510
{
private:
// Sidplay Specials
bool m_sleeping;
sid2_env_t m_mode;
event_clock_t m_delayClk, m_delayCycles;
bool m_framelock;
public:
SID6510 (EventContext *context);
// Standard Functions
void reset (void);
void reset (uint_least16_t pc, uint8_t a, uint8_t x, uint8_t y);
void clock (void);
void environment (sid2_env_t mode) { m_mode = mode; }
void triggerRST (void);
void triggerNMI (void);
void triggerIRQ (void);
void sleep (void);
protected:
void FetchOpcode (void);
private:
void (MOS6510::*delayCycle[1]) (void);
inline void sid_illegal (void);
inline void sid_delay (void);
inline void sid_brk (void);
inline void sid_jmp (void);
inline void sid_rts (void);
inline void sid_cli (void);
inline void sid_rti (void);
inline void sid_irq (void);
};
#endif // _sid6510c_h_
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