diff options
Diffstat (limited to 'src/chips')
| -rw-r--r-- | src/chips/ymfm/ymfm.h | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/src/chips/ymfm/ymfm.h b/src/chips/ymfm/ymfm.h index ccd0d6c..2cc2ac1 100644 --- a/src/chips/ymfm/ymfm.h +++ b/src/chips/ymfm/ymfm.h @@ -505,7 +505,6 @@ class ymfm_interface template<typename RegisterType> friend class fm_engine_base; public: - virtual ~ymfm_interface() {} // the following functions must be implemented by any derived classes; the // default implementations are sufficient for some minimal operation, but will // likely need to be overridden to integrate with the outside world; they are @@ -519,31 +518,31 @@ public: // register, which could affect timers and interrupts; our responsibility // is to ensure the system is up to date before calling the engine's // engine_mode_write() method - virtual void ymfm_sync_mode_write(uint8_t data) { m_engine->engine_mode_write(data); } + void ymfm_sync_mode_write(uint8_t data) { m_engine->engine_mode_write(data); } // the chip implementation calls this when the chip's status has changed, // which may affect the interrupt state; our responsibility is to ensure // the system is up to date before calling the engine's // engine_check_interrupts() method - virtual void ymfm_sync_check_interrupts() { m_engine->engine_check_interrupts(); } + void ymfm_sync_check_interrupts() { m_engine->engine_check_interrupts(); } // the chip implementation calls this when one of the two internal timers // has changed state; our responsibility is to arrange to call the engine's // engine_timer_expired() method after the provided number of clocks; if // duration_in_clocks is negative, we should cancel any outstanding timers - virtual void ymfm_set_timer(uint32_t tnum, int32_t duration_in_clocks) { (void)tnum; (void)duration_in_clocks; } + void ymfm_set_timer(uint32_t tnum, int32_t duration_in_clocks) { (void)tnum; (void)duration_in_clocks; } // the chip implementation calls this to indicate that the chip should be // considered in a busy state until the given number of clocks has passed; // our responsibility is to compute and remember the ending time based on // the chip's clock for later checking - virtual void ymfm_set_busy_end(uint32_t clocks) { (void)clocks; } + void ymfm_set_busy_end(uint32_t clocks) { (void)clocks; } // the chip implementation calls this to see if the chip is still currently // is a busy state, as specified by a previous call to ymfm_set_busy_end(); // our responsibility is to compare the current time against the previously // noted busy end time and return true if we haven't yet passed it - virtual bool ymfm_is_busy() { return false; } + bool ymfm_is_busy() { return false; } // // I/O functions @@ -552,15 +551,15 @@ public: // the chip implementation calls this when the state of the IRQ signal has // changed due to a status change; our responsibility is to respond as // needed to the change in IRQ state, signaling any consumers - virtual void ymfm_update_irq(bool asserted) { (void)asserted; } + void ymfm_update_irq(bool asserted) { (void)asserted; } // the chip implementation calls this whenever data is read from outside // of the chip; our responsibility is to provide the data requested - virtual uint8_t ymfm_external_read(access_class type, uint32_t address) { (void)type; (void)address; return 0; } + uint8_t ymfm_external_read(access_class type, uint32_t address) { (void)type; (void)address; return 0; } // the chip implementation calls this whenever data is written outside // of the chip; our responsibility is to pass the written data on to any consumers - virtual void ymfm_external_write(access_class type, uint32_t address, uint8_t data) { (void)type; (void)address; (void)data; } + void ymfm_external_write(access_class type, uint32_t address, uint8_t data) { (void)type; (void)address; (void)data; } protected: // pointer to engine callbacks -- this is set directly by the engine at |