diff options
Diffstat (limited to 'src/devices/bus/a2bus/suprterminal.cpp')
-rw-r--r-- | src/devices/bus/a2bus/suprterminal.cpp | 57 |
1 files changed, 53 insertions, 4 deletions
diff --git a/src/devices/bus/a2bus/suprterminal.cpp b/src/devices/bus/a2bus/suprterminal.cpp index aa3d31d96d8..796937bebcb 100644 --- a/src/devices/bus/a2bus/suprterminal.cpp +++ b/src/devices/bus/a2bus/suprterminal.cpp @@ -24,19 +24,59 @@ #include "emu.h" #include "suprterminal.h" + +#include "video/mc6845.h" + #include "screen.h" -//************************************************************************** -// GLOBAL VARIABLES -//************************************************************************** -DEFINE_DEVICE_TYPE(A2BUS_SUPRTERMINAL, a2bus_suprterminal_device, "a2suprterm", "M&R Enterprises SUP'R'TERMINAL") +namespace { ROM_START(a2suprterm) ROM_REGION(0x800, "s3firmware", ROMREGION_ERASEFF) ROM_LOAD("suprterminal.bin", 0x000000, 0x000800, CRC(4c49b0f5) SHA1(66a7411c46c04a8089a7ddfb5ffd9809dd08a21f)) ROM_END +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class a2bus_suprterminal_device: + public device_t, + public device_a2bus_card_interface +{ +public: + // construction/destruction + a2bus_suprterminal_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + +protected: + a2bus_suprterminal_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock); + + virtual void device_start() override; + virtual void device_reset() override; + virtual void device_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + + // overrides of standard a2bus slot functions + virtual u8 read_cnxx(u8 offset) override; + virtual u8 read_c0nx(u8 offset) override; + virtual void write_c0nx(u8 offset, u8 data) override; + virtual u8 read_c800(u16 offset) override; + virtual void write_c800(u16 offset, u8 data) override; + virtual bool take_c800() override { return true; } + +private: + required_device<mc6845_device> m_crtc; + required_region_ptr<u8> m_rom; + + MC6845_UPDATE_ROW(crtc_update_row); + + std::unique_ptr<u8[]> m_vram; + std::unique_ptr<u8[]> m_fontram; +// u8 m_fontram[0x400]; + bool m_bRasterRAM, m_bCharBank1, m_bC800IsRAM; +}; + //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- @@ -213,3 +253,12 @@ MC6845_UPDATE_ROW(a2bus_suprterminal_device::crtc_update_row) } } } + +} // anonymous namespace + + +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** + +DEFINE_DEVICE_TYPE_PRIVATE(A2BUS_SUPRTERMINAL, device_a2bus_card_interface, a2bus_suprterminal_device, "a2suprterm", "M&R Enterprises SUP'R'TERMINAL") |