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-// license:GPL-2.0+
-// copyright-holders:Kevin Thacker, Barry Rodewald
-/*****************************************************************************
- *
- * includes/amstrad.h
- *
- ****************************************************************************/
-
-#ifndef AMSTRAD_H_
-#define AMSTRAD_H_
-
-#include "cpu/z80/z80.h"
-#include "sound/ay8910.h"
-#include "machine/upd765.h"
-#include "video/mc6845.h"
-#include "machine/i8255.h"
-#include "machine/mc146818.h"
-#include "imagedev/snapquik.h"
-#include "bus/cpc/cpcexp.h"
-#include "bus/cpc/ddi1.h"
-#include "bus/cpc/cpc_ssa1.h"
-#include "bus/cpc/cpc_rom.h"
-#include "bus/cpc/mface2.h"
-#include "bus/cpc/cpc_pds.h"
-#include "bus/cpc/cpc_rs232.h"
-#include "bus/cpc/symbfac2.h"
-#include "bus/cpc/amdrum.h"
-#include "bus/cpc/playcity.h"
-#include "bus/cpc/smartwatch.h"
-#include "bus/cpc/brunword4.h"
-#include "bus/cpc/hd20.h"
-#include "bus/cpc/magicsound.h"
-#include "machine/ram.h"
-#include "imagedev/cassette.h"
-#include "bus/centronics/ctronics.h"
-#include "bus/centronics/comxpl80.h"
-#include "bus/centronics/epson_ex800.h"
-#include "bus/centronics/epson_lx800.h"
-#include "bus/centronics/epson_lx810l.h"
-#include "bus/centronics/printer.h"
-#include "bus/centronics/digiblst.h"
-#include "bus/generic/slot.h"
-#include "bus/generic/carts.h"
-
-
-/****************************
- * Gate Array data (CPC) -
- ****************************/
-struct gate_array_t
-{
- bitmap_ind16 *bitmap; /* The bitmap we work on */
- UINT8 pen_selected; /* Pen selection */
- UINT8 mrer; /* Mode and ROM Enable Register */
- UINT8 upper_bank;
- UINT8 romdis; // ROMDIS signal from the expansion port
-
- /* input signals from CRTC */
- int vsync;
- int hsync;
- int de;
- int ma;
- int ra;
-
- /* used for timing */
- int hsync_after_vsync_counter;
- int hsync_counter; /* The gate array counts CRTC HSYNC pulses using an internal 6-bit counter. */
-
- /* used for drawing the screen */
- attotime last_draw_time;
- int y;
- UINT16 *draw_p; /* Position in the bitmap where we are currently drawing */
- UINT16 colour;
- UINT16 address;
- UINT8 *mode_lookup;
- UINT8 data;
- UINT8 ticks;
- UINT8 ticks_increment;
- UINT16 line_ticks;
- UINT8 colour_ticks;
- UINT8 max_colour_ticks;
-};
-
-/****************************
- * ASIC data (CPC plus)
- ****************************/
-struct asic_t
-{
- UINT8 *ram; /* pointer to RAM used for the CPC+ ASIC memory-mapped registers */
- UINT8 enabled; /* Are CPC plus features enabled/unlocked */
- UINT8 pri; /* Programmable raster interrupt */
- UINT8 seqptr; /* Current position in the ASIC unlocking sequence */
- UINT8 rmr2; /* ROM mapping register 2 */
- UINT16 split_ma_base; /* Used to handle split screen support */
- UINT16 split_ma_started; /* Used to handle split screen support */
- UINT16 vpos; /* Current logical scanline */
- UINT16 h_start; /* Position where DE became active */
- UINT16 h_end; /* Position where DE became inactive */
- UINT8 addr_6845; /* We need these to store a shadow copy of R1 of the mc6845 */
- UINT8 horiz_disp;
- UINT8 hscroll;
- UINT8 de_start; /* flag to check if DE is been enabled this frame yet */
-
- /* DMA */
- UINT8 dma_status;
- UINT8 dma_clear; /* Set if DMA interrupts are to be cleared automatically */
- UINT8 dma_prescaler[3]; /* DMA channel prescaler */
- UINT16 dma_repeat[3]; /* Location of the DMA channel's last repeat */
- UINT16 dma_addr[3]; /* DMA channel address */
- UINT16 dma_loopcount[3]; /* Count loops taken on this channel */
- UINT16 dma_pause[3]; /* DMA pause count */
-};
-
-
-class amstrad_state : public driver_device
-{
-public:
- enum
- {
- TIMER_PC2_LOW,
- TIMER_VIDEO_UPDATE,
- TIMER_SET_RESOLUTION
- };
-
- amstrad_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_maincpu(*this, "maincpu"),
- m_ay(*this, "ay"),
- m_fdc(*this, "upd765"),
- m_crtc(*this, "mc6845"),
- m_ppi(*this, "ppi8255"),
- m_centronics(*this, "centronics"),
- m_cassette(*this, "cassette"),
- m_cart(*this, "cartslot"),
- m_ram(*this, RAM_TAG),
- m_exp(*this, "exp"),
- m_rtc(*this, "rtc"),
- m_region_maincpu(*this, "maincpu"),
- m_region_user1(*this, "user1"),
- m_bank1(*this, "bank1"),
- m_bank2(*this, "bank2"),
- m_bank3(*this, "bank3"),
- m_bank4(*this, "bank4"),
- m_bank5(*this, "bank5"),
- m_bank6(*this, "bank6"),
- m_bank7(*this, "bank7"),
- m_bank8(*this, "bank8"),
- m_bank9(*this, "bank9"),
- m_bank10(*this, "bank10"),
- m_bank11(*this, "bank11"),
- m_bank12(*this, "bank12"),
- m_bank13(*this, "bank13"),
- m_bank14(*this, "bank14"),
- m_bank15(*this, "bank15"),
- m_bank16(*this, "bank16"),
- m_io_kbrow(*this, "kbrow"),
- m_io_analog(*this, "analog"),
- m_io_mouse1(*this,"mouse_input1"),
- m_io_mouse2(*this,"mouse_input2"),
- m_io_mouse3(*this,"mouse_input3"),
- m_io_solder_links(*this, "solder_links"),
- m_io_green_display(*this, "green_display"),
- m_io_ctrltype(*this,"controller_type"),
- m_screen(*this, "screen"),
- m_palette(*this, "palette") { }
-
- required_device<z80_device> m_maincpu;
- required_device<ay8910_device> m_ay;
- optional_device<upd765_family_device> m_fdc; // not on a GX4000
- required_device<mc6845_device> m_crtc;
- required_device<i8255_device> m_ppi;
- optional_device<centronics_device> m_centronics; // not on a GX4000
- optional_device<cassette_image_device> m_cassette; // not on a GX4000, (or technically, the 6128+)
- optional_device<generic_slot_device> m_cart; // only on 664+, 6128+ and GX4000
- required_device<ram_device> m_ram;
- optional_device<cpc_expansion_slot_device> m_exp; // not on a GX4000
- optional_device<mc146818_device> m_rtc; // Aleste 520EX only
-
- int m_system_type;
- UINT8 m_aleste_mode;
- int m_plus_irq_cause;
- gate_array_t m_gate_array;
- asic_t m_asic;
- int m_GateArray_RamConfiguration;
- unsigned char *m_AmstradCPC_RamBanks[4];
- unsigned char *m_Aleste_RamBanks[4];
- int m_aleste_active_page[4];
- unsigned char *m_Amstrad_ROM_Table[256];
- UINT8 m_ppi_port_inputs[3];
- UINT8 m_ppi_port_outputs[3];
- int m_aleste_rtc_function;
- int m_prev_reg;
- UINT16 m_GateArray_render_colours[17];
- UINT8 m_mode0_lookup[256];
- UINT8 m_mode1_lookup[256];
- UINT8 m_mode2_lookup[256];
- int m_prev_data;
- int m_printer_bit8_selected;
- unsigned char m_Psg_FunctionSelected;
- int m_previous_ppi_portc_w;
- UINT8 m_amx_mouse_data;
- DECLARE_WRITE8_MEMBER(amstrad_plus_asic_4000_w);
- DECLARE_WRITE8_MEMBER(amstrad_plus_asic_6000_w);
- DECLARE_READ8_MEMBER(amstrad_plus_asic_4000_r);
- DECLARE_READ8_MEMBER(amstrad_plus_asic_6000_r);
- DECLARE_WRITE8_MEMBER(aleste_msx_mapper);
- DECLARE_READ8_MEMBER(amstrad_cpc_io_r);
- DECLARE_WRITE8_MEMBER(amstrad_cpc_io_w);
- DECLARE_READ8_MEMBER(amstrad_psg_porta_read);
- void amstrad_plus_seqcheck(int data);
- DECLARE_MACHINE_START(amstrad);
- DECLARE_MACHINE_RESET(amstrad);
- DECLARE_VIDEO_START(amstrad);
- DECLARE_PALETTE_INIT(amstrad_cpc);
- DECLARE_PALETTE_INIT(amstrad_cpc_green);
- DECLARE_MACHINE_START(plus);
- DECLARE_MACHINE_RESET(plus);
- DECLARE_PALETTE_INIT(amstrad_plus);
- DECLARE_MACHINE_START(gx4000);
- DECLARE_MACHINE_RESET(gx4000);
- DECLARE_MACHINE_START(kccomp);
- DECLARE_MACHINE_RESET(kccomp);
- DECLARE_PALETTE_INIT(kccomp);
- DECLARE_MACHINE_START(aleste);
- DECLARE_MACHINE_RESET(aleste);
- DECLARE_PALETTE_INIT(aleste);
- UINT32 screen_update_amstrad(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
- void screen_eof_amstrad(screen_device &screen, bool state);
- DECLARE_INPUT_CHANGED_MEMBER(cpc_monitor_changed);
- TIMER_CALLBACK_MEMBER(amstrad_pc2_low);
- TIMER_CALLBACK_MEMBER(amstrad_video_update_timer);
- TIMER_CALLBACK_MEMBER(cb_set_resolution);
- DECLARE_WRITE_LINE_MEMBER(amstrad_hsync_changed);
- DECLARE_WRITE_LINE_MEMBER(amstrad_plus_hsync_changed);
- DECLARE_WRITE_LINE_MEMBER(amstrad_vsync_changed);
- DECLARE_WRITE_LINE_MEMBER(amstrad_plus_vsync_changed);
- DECLARE_WRITE_LINE_MEMBER(amstrad_de_changed);
- DECLARE_WRITE_LINE_MEMBER(amstrad_plus_de_changed);
- DECLARE_READ8_MEMBER(amstrad_ppi_porta_r);
- DECLARE_WRITE8_MEMBER(amstrad_ppi_porta_w);
- DECLARE_READ8_MEMBER(amstrad_ppi_portb_r);
- DECLARE_WRITE8_MEMBER(amstrad_ppi_portc_w);
-
- DECLARE_WRITE_LINE_MEMBER( cpc_romdis );
- DECLARE_WRITE_LINE_MEMBER( cpc_romen );
- DECLARE_WRITE8_MEMBER(rom_select);
-
- DECLARE_FLOPPY_FORMATS( aleste_floppy_formats );
-
- IRQ_CALLBACK_MEMBER(amstrad_cpu_acknowledge_int);
-
- DECLARE_DEVICE_IMAGE_LOAD_MEMBER( amstrad_plus_cartridge );
-
- void amstrad_handle_snapshot(unsigned char *pSnapshot);
- void amstrad_rethinkMemory();
- DECLARE_SNAPSHOT_LOAD_MEMBER( amstrad );
-
- DECLARE_WRITE_LINE_MEMBER(write_centronics_busy);
-
-protected:
- required_memory_region m_region_maincpu;
- optional_memory_region m_region_user1;
- required_memory_bank m_bank1;
- required_memory_bank m_bank2;
- required_memory_bank m_bank3;
- required_memory_bank m_bank4;
- required_memory_bank m_bank5;
- required_memory_bank m_bank6;
- required_memory_bank m_bank7;
- required_memory_bank m_bank8;
- required_memory_bank m_bank9;
- required_memory_bank m_bank10;
- required_memory_bank m_bank11;
- required_memory_bank m_bank12;
- required_memory_bank m_bank13;
- required_memory_bank m_bank14;
- required_memory_bank m_bank15;
- required_memory_bank m_bank16;
- optional_ioport_array<11> m_io_kbrow;
- optional_ioport_array<4> m_io_analog;
- optional_ioport m_io_mouse1;
- optional_ioport m_io_mouse2;
- optional_ioport m_io_mouse3;
- required_ioport m_io_solder_links;
- required_ioport m_io_green_display;
- optional_ioport m_io_ctrltype;
- required_device<screen_device> m_screen;
- required_device<palette_device> m_palette;
-
- memory_region *m_region_cart;
-
- void amstrad_init_lookups();
- void amstrad_vh_update_mode();
- void amstrad_plus_dma_parse(int channel);
- void amstrad_plus_handle_dma();
- void amstrad_vh_update_colour(int PenIndex, UINT16 hw_colour_index);
- void aleste_vh_update_colour(int PenIndex, UINT16 hw_colour_index);
- void amstrad_gate_array_get_video_data();
- void amstrad_update_video();
- void amstrad_plus_gate_array_get_video_data();
- void amstrad_plus_update_video();
- void amstrad_plus_update_video_sprites();
- void amstrad_setLowerRom();
- void amstrad_setUpperRom();
- void AmstradCPC_GA_SetRamConfiguration();
- void AmstradCPC_PALWrite(int data);
- void amstrad_GateArray_write(UINT8 dataToGateArray);
- void amstrad_reset_machine();
- void kccomp_reset_machine();
- void update_psg();
- void amstrad_common_init();
- void enumerate_roms();
- unsigned char kccomp_get_colour_element(int colour_value);
- virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
-
- int m_centronics_busy;
-};
-
-
-/*----------- defined in machine/amstrad.c -----------*/
-
-
-SLOT_INTERFACE_EXTERN(cpc_exp_cards);
-SLOT_INTERFACE_EXTERN(cpcplus_exp_cards);
-
-#endif /* AMSTRAD_H_ */