1 // license:BSD-3-Clause 2 // copyright-holders:Sergey Svishchev 3 4 #ifndef MAME_BUS_ISA_PGC_H 5 #define MAME_BUS_ISA_PGC_H 6 7 #pragma once 8 9 10 #include "cpu/i86/i86.h" 11 #include "machine/timer.h" 12 #include "isa.h" 13 #include "emupal.h" 14 15 //************************************************************************** 16 // TYPE DEFINITIONS 17 //************************************************************************** 18 19 // ======================> isa8_pgc_device 20 21 class isa8_pgc_device : 22 public device_t, 23 public device_isa8_card_interface 24 { 25 public: 26 // construction/destruction 27 isa8_pgc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 28 29 protected: 30 isa8_pgc_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); 31 32 // device-level overrides 33 virtual void device_start() override; 34 virtual void device_reset() override; 35 36 // optional information overrides 37 virtual void device_add_mconfig(machine_config &config) override; 38 virtual const tiny_rom_entry *device_rom_region() const override; 39 virtual ioport_constructor device_input_ports() const override; 40 41 private: 42 uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); 43 44 DECLARE_WRITE_LINE_MEMBER(vblank_irq); 45 IRQ_CALLBACK_MEMBER(irq_callback); 46 47 void vram_w(offs_t offset, uint8_t data); 48 uint8_t vram_r(offs_t offset); 49 void stateparam_w(offs_t offset, uint8_t data); 50 uint8_t stateparam_r(offs_t offset); 51 void lut_w(offs_t offset, uint8_t data); 52 uint8_t init_r(); 53 void accel_w(offs_t offset, uint8_t data); 54 55 void reset_common(); 56 57 void pgc_io(address_map &map); 58 void pgc_map(address_map &map); 59 60 required_device<i8088_cpu_device> m_cpu; 61 required_device<screen_device> m_screen; 62 required_device<palette_device> m_palette; 63 64 uint8_t *m_commarea; 65 std::unique_ptr<uint8_t[]> m_vram; 66 std::unique_ptr<uint8_t[]> m_eram; 67 uint8_t m_stateparam[16]; 68 uint8_t m_lut[256 * 3]; 69 int m_accel; 70 }; 71 72 73 // device type definition 74 DECLARE_DEVICE_TYPE(ISA8_PGC, isa8_pgc_device) 75 76 #endif // MAME_BUS_ISA_PGC_H 77