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-rw-r--r--src/devices/bus/ti99/peb/evpc.h89
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diff --git a/src/devices/bus/ti99/peb/evpc.h b/src/devices/bus/ti99/peb/evpc.h
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+// license:LGPL-2.1+
+// copyright-holders:Michael Zapf
+/****************************************************************************
+
+ SNUG Enhanced Video Processor Card (evpc)
+ See evpc.c for documentation.
+
+ Michael Zapf
+
+ October 2010: Rewritten as device
+ February 2012: Rewritten as class
+
+*****************************************************************************/
+
+#ifndef MAME_BUS_TI99_PEB_EVPC_H
+#define MAME_BUS_TI99_PEB_EVPC_H
+
+#pragma once
+
+#include "peribox.h"
+#include "video/v9938.h"
+#include "sound/sn76496.h"
+#include "bus/ti99x/ti99defs.h"
+#include "bus/ti99/colorbus/colorbus.h"
+
+DECLARE_DEVICE_TYPE(TI99_EVPC, snug_enhanced_video_device)
+
+class snug_enhanced_video_device : public ti_expansion_card_device, public device_nvram_interface
+{
+public:
+ snug_enhanced_video_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+ DECLARE_READ8Z_MEMBER(readz) override;
+ DECLARE_WRITE8_MEMBER(write) override;
+ DECLARE_SETADDRESS_DBIN_MEMBER(setaddress_dbin) override;
+
+ DECLARE_WRITE_LINE_MEMBER( ready_line );
+
+ DECLARE_READ8Z_MEMBER(crureadz) override;
+ DECLARE_WRITE8_MEMBER(cruwrite) override;
+ DECLARE_WRITE_LINE_MEMBER( video_interrupt_in );
+
+ TIMER_DEVICE_CALLBACK_MEMBER( hblank_interrupt );
+
+protected:
+ struct evpc_palette
+ {
+ uint8_t read_index, write_index, mask;
+ int read;
+ int state;
+ struct { uint8_t red, green, blue; } color[0x100];
+ //int dirty;
+ };
+
+ void device_start() override;
+ void device_reset() override;
+ void device_stop() override;
+
+ virtual const tiny_rom_entry *device_rom_region() const override;
+ virtual ioport_constructor device_input_ports() const override;
+ machine_config_constructor device_mconfig_additions() const override;
+
+ void nvram_default() override;
+ void nvram_read(emu_file &file) override;
+ void nvram_write(emu_file &file) override;
+
+private:
+ int m_address;
+ int m_dsr_page;
+ bool m_inDsrArea;
+ bool m_novram_accessed;
+ bool m_palette_accessed;
+ bool m_RAMEN;
+ bool m_sound_accessed;
+ bool m_video_accessed;
+
+ int m_intlevel;
+
+ uint8_t* m_dsrrom;
+
+ std::unique_ptr<uint8_t[]> m_novram; // NOVRAM area
+
+ evpc_palette m_palette;
+ required_device<v9938_device> m_video;
+ required_device<sn76496_base_device> m_sound;
+ required_device<ti99_colorbus_device> m_colorbus;
+ evpc_clock_connector* m_console_conn;
+};
+
+#endif // MAME_BUS_TI99_PEB_EVPC_H