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Diffstat (limited to 'sid/sidplay-libs-2.1.0/libsidplay/src/mos6510/cycle_based/sid6510c.h')
| -rw-r--r-- | sid/sidplay-libs-2.1.0/libsidplay/src/mos6510/cycle_based/sid6510c.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/sid/sidplay-libs-2.1.0/libsidplay/src/mos6510/cycle_based/sid6510c.h b/sid/sidplay-libs-2.1.0/libsidplay/src/mos6510/cycle_based/sid6510c.h new file mode 100644 index 00000000..49d96dd6 --- /dev/null +++ b/sid/sidplay-libs-2.1.0/libsidplay/src/mos6510/cycle_based/sid6510c.h @@ -0,0 +1,118 @@ +/*************************************************************************** + 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_ |