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Diffstat (limited to 'src/devices/bus/electron/plus1.h')
-rw-r--r-- | src/devices/bus/electron/plus1.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/devices/bus/electron/plus1.h b/src/devices/bus/electron/plus1.h new file mode 100644 index 00000000000..75eb44ce91a --- /dev/null +++ b/src/devices/bus/electron/plus1.h @@ -0,0 +1,68 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/********************************************************************** + + ALA11 - Acorn Plus 1 + +**********************************************************************/ + + +#ifndef MAME_BUS_ELECTRON_PLUS1_H +#define MAME_BUS_ELECTRON_PLUS1_H + +#include "exp.h" +#include "softlist.h" +#include "machine/adc0844.h" +#include "bus/centronics/ctronics.h" +#include "bus/generic/slot.h" +#include "bus/generic/carts.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class electron_plus1_device: + public device_t, + public device_electron_expansion_interface +{ +public: + // construction/destruction + electron_plus1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + virtual void device_start() override; + virtual void device_reset() override; + + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + virtual ioport_constructor device_input_ports() const override; + +private: + DECLARE_READ8_MEMBER(status_r); + DECLARE_WRITE_LINE_MEMBER(busy_w); + DECLARE_WRITE_LINE_MEMBER(ready_w); + + image_init_result load_cart(device_image_interface &image, generic_slot_device *slot); + DECLARE_DEVICE_IMAGE_LOAD_MEMBER(electron_cart_sk1) { return load_cart(image, m_cart_sk1); } + DECLARE_DEVICE_IMAGE_LOAD_MEMBER(electron_cart_sk2) { return load_cart(image, m_cart_sk2); } + + required_memory_region m_exp_rom; + required_device<generic_slot_device> m_cart_sk1; + required_device<generic_slot_device> m_cart_sk2; + required_device<centronics_device> m_centronics; + required_device<output_latch_device> m_cent_data_out; + required_device<adc0844_device> m_adc; + required_ioport_array<4> m_joy; + required_ioport m_buttons; + + int m_centronics_busy; + int m_adc_ready; +}; + + +// device type definition +DECLARE_DEVICE_TYPE(ELECTRON_PLUS1, electron_plus1_device) + + +#endif /* MAME_BUS_ELECTRON_PLUS1_H */ |