// license:GPL-2.0+ // copyright-holders:Curt Coder,Dirk Best #ifndef MAME_INCLUDES_PX8_H #define MAME_INCLUDES_PX8_H #pragma once #include "cpu/z80/z80.h" #include "cpu/m6800/m6801.h" #include "imagedev/cassette.h" #include "machine/ram.h" #include "machine/i8251.h" #include "bus/epson_sio/pf10.h" #include "emupal.h" #include "bus/generic/slot.h" #include "bus/generic/carts.h" #define UPD70008_TAG "4a" #define UPD7508_TAG "2e" #define HD6303_TAG "13d" #define SED1320_TAG "7c" #define I8251_TAG "13e" #define UPD7001_TAG "1d" #define SCREEN_TAG "screen" #define PX8_VIDEORAM_MASK 0x17ff class px8_state : public driver_device { public: px8_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, UPD70008_TAG) , m_cassette(*this, "cassette") , m_ram(*this, RAM_TAG) , m_video_ram(*this, "video_ram") , m_leds(*this, "led_%u", 0U) { } void px8(machine_config &config); private: required_device m_maincpu; required_device m_cassette; required_device m_ram; /* video state */ required_shared_ptr m_video_ram; /* LCD video RAM */ output_finder<3> m_leds; virtual void machine_start() override; virtual void machine_reset() override; uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); uint8_t gah40m_r(offs_t offset); void gah40m_w(offs_t offset, uint8_t data); uint8_t gah40s_r(offs_t offset); void gah40s_w(offs_t offset, uint8_t data); void gah40s_ier_w(uint8_t data); uint8_t krtn_0_3_r(); uint8_t krtn_4_7_r(); void ksc_w(uint8_t data); void bankswitch(); uint8_t krtn_read(); /* GAH40M state */ uint16_t m_icr = 0; // input capture register uint16_t m_frc = 0; // free running counter uint8_t m_ier = 0; // interrupt acknowledge register uint8_t m_isr = 0; // interrupt status register uint8_t m_sio = 0; // serial I/O register int m_bank0 = 0; /* GAH40S state */ uint16_t m_cnt = 0; // microcassette tape counter int m_swpr = 0; // P-ROM power switch uint16_t m_pra = 0; // P-ROM address uint8_t m_prd = 0; // P-ROM data /* memory state */ int m_bk2 = 0; /* keyboard state */ int m_ksc = 0; // keyboard scan column void px8_palette(palette_device &palette) const; void px8_io(address_map &map); void px8_mem(address_map &map); void px8_slave_mem(address_map &map); }; #endif