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Diffstat (limited to 'src/devices/machine/pseudovia.h')
-rw-r--r-- | src/devices/machine/pseudovia.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/devices/machine/pseudovia.h b/src/devices/machine/pseudovia.h new file mode 100644 index 00000000000..641077aa800 --- /dev/null +++ b/src/devices/machine/pseudovia.h @@ -0,0 +1,54 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont + +#ifndef MAME_MACHINE_PSEUDOVIA_H +#define MAME_MACHINE_PSEUDOVIA_H + +#pragma once + +class pseudovia_device : public device_t +{ +public: + pseudovia_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + // interface routines + auto readpa_handler() { return m_in_a_handler.bind(); } + auto readpb_handler() { return m_in_b_handler.bind(); } + auto readconfig_handler() { return m_in_config_handler.bind(); } + auto readvideo_handler() { return m_in_video_handler.bind(); } + auto readmsc_handler() { return m_in_msc_handler.bind(); } + auto writepa_handler() { return m_out_a_handler.bind(); } + auto writepb_handler() { return m_out_b_handler.bind(); } + auto writeconfig_handler() { return m_out_config_handler.bind(); } + auto writevideo_handler() { return m_out_video_handler.bind(); } + auto writemsc_handler() { return m_out_msc_handler.bind(); } + auto irq_callback() { return m_write_irq.bind(); } + + uint8_t read(offs_t offset); + void write(offs_t offset, uint8_t data); + + template <u8 mask> void slot_irq_w(int state); + void vbl_irq_w(int state); + void scc_irq_w(int state); + void asc_irq_w(int state); + void scsi_irq_w(int state); + +protected: + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; + +private: + devcb_write_line m_write_irq; + devcb_read8 m_in_a_handler, m_in_b_handler, m_in_config_handler, m_in_video_handler, m_in_msc_handler; + devcb_write8 m_out_a_handler, m_out_b_handler, m_out_config_handler, m_out_video_handler, m_out_msc_handler; + + uint8_t m_pseudovia_regs[256], m_pseudovia_ier, m_pseudovia_ifr; + + void pseudovia_recalc_irqs(); +}; + +// device type definition +DECLARE_DEVICE_TYPE(APPLE_PSEUDOVIA, pseudovia_device) + +#endif // MAME_MACHINE_PSEUDOVIA_H |