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author | 2021-06-14 13:13:17 +0100 | |
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committer | 2021-06-14 13:20:35 +0100 | |
commit | efcdeeaed4cf00263f23de8a77b990b4b92893a4 (patch) | |
tree | 1ed1f14fbbfc7705e8747c9a152e1cfc6a9f9533 /src/devices/bus/coco/coco_wpk.h | |
parent | 47d8ac8698d14e03a39c6c3ffb6569f2768e4e90 (diff) |
bus/coco: Added the Dragon MSX 2+, The Dragon's Claw, Peaksoft Prestel, and CoCo WordPak/WordPak II/WordPak RS/WordPak 2+ devices.
Diffstat (limited to 'src/devices/bus/coco/coco_wpk.h')
-rw-r--r-- | src/devices/bus/coco/coco_wpk.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/devices/bus/coco/coco_wpk.h b/src/devices/bus/coco/coco_wpk.h new file mode 100644 index 00000000000..65534dd3709 --- /dev/null +++ b/src/devices/bus/coco/coco_wpk.h @@ -0,0 +1,94 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +#ifndef MAME_BUS_COCO_COCO_WPK_H +#define MAME_BUS_COCO_COCO_WPK_H + +#pragma once + +#include "cococart.h" +#include "video/mc6845.h" +#include "emupal.h" + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> coco_wpk_device + +class coco_wpk_device : + public device_t, + public device_cococart_interface +{ +public: + static constexpr feature_type imperfect_features() { return feature::GRAPHICS; } + + // construction/destruction + coco_wpk_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + +protected: + // construction/destruction + coco_wpk_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock); + + // device-level overrides + 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; + + required_device<r6545_1_device> m_crtc; + required_device<palette_device> m_palette; + required_memory_region m_chargen; + + u16 m_video_addr; + u8 m_video_data; + + std::unique_ptr<u8[]> m_video_ram; + + void crtc_display_w(u8 data); + MC6845_ON_UPDATE_ADDR_CHANGED(crtc_addr); + MC6845_UPDATE_ROW(crtc_update_row); +}; + + +// ======================> coco_wpk2_device + +class coco_wpk2_device : public coco_wpk_device +{ +public: + // construction/destruction + coco_wpk2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; + +private: + void video_select_w(u8 data); +}; + + +// ======================> coco_wpkrs_device + +class coco_wpkrs_device : public coco_wpk_device +{ +public: + // construction/destruction + coco_wpkrs_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; +}; + + +// device type definition +DECLARE_DEVICE_TYPE(COCO_WPK, coco_wpk_device) +DECLARE_DEVICE_TYPE(COCO_WPK2, coco_wpk2_device) +DECLARE_DEVICE_TYPE(COCO_WPKRS, coco_wpkrs_device) + +#endif // MAME_BUS_COCO_COCO_WPK_H |