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Diffstat (limited to 'src/mess/includes/next.h')
-rw-r--r-- | src/mess/includes/next.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/mess/includes/next.h b/src/mess/includes/next.h new file mode 100644 index 00000000000..470f2b8b02e --- /dev/null +++ b/src/mess/includes/next.h @@ -0,0 +1,187 @@ +#pragma once + +#ifndef __NEXT__ +#define __NEXT__ + +#include "emu.h" +#include "cpu/m68000/m68000.h" +#include "imagedev/flopdrv.h" +#include "machine/nscsi_bus.h" +#include "machine/mccs1850.h" +#include "machine/8530scc.h" +#include "machine/nextkbd.h" +#include "machine/n82077aa.h" +#include "machine/ncr5390.h" +#include "machine/mb8795.h" +#include "machine/nextmo.h" +#include "imagedev/chd_cd.h" +#include "imagedev/harddriv.h" + +class next_state : public driver_device +{ +public: + next_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + maincpu(*this, "maincpu"), + rtc(*this, "rtc"), + scc(*this, "scc"), + keyboard(*this, "keyboard"), + scsibus(*this, "scsibus"), + scsi(*this, "scsibus:7:ncr5390"), + net(*this, "net"), + mo(*this, "mo"), + fdc(*this, "fdc"), + vram(*this, "vram") + { } + + required_device<cpu_device> maincpu; + required_device<mccs1850_device> rtc; + required_device<scc8530_t> scc; + required_device<nextkbd_device> keyboard; + required_device<nscsi_bus_device> scsibus; + required_device<ncr5390_device> scsi; + required_device<mb8795_device> net; + required_device<nextmo_device> mo; + optional_device<n82077aa_device> fdc; // 040 only + + UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); + + void setup(UINT32 scr1, int size_x, int size_y, int skip, bool color); + + READ8_MEMBER( io_r ); + WRITE8_MEMBER( io_w ); + READ32_MEMBER( rom_map_r ); + READ32_MEMBER( scr2_r ); + WRITE32_MEMBER( scr2_w ); + READ32_MEMBER( scr1_r ); + READ32_MEMBER( irq_status_r ); + READ32_MEMBER( irq_mask_r ); + WRITE32_MEMBER( irq_mask_w ); + READ32_MEMBER( modisk_r ); + READ32_MEMBER( network_r ); + READ32_MEMBER( event_counter_r ); + READ32_MEMBER( dsp_r ); + READ32_MEMBER( fdc_control_r ); + WRITE32_MEMBER( fdc_control_w ); + READ32_MEMBER( dma_ctrl_r ); + WRITE32_MEMBER( dma_ctrl_w ); + WRITE32_MEMBER( dma_040_ctrl_w ); + READ32_MEMBER( dma_regs_r ); + WRITE32_MEMBER( dma_regs_w ); + READ32_MEMBER( scsictrl_r ); + WRITE32_MEMBER( scsictrl_w ); + READ32_MEMBER( phy_r ); + WRITE32_MEMBER( phy_w ); + READ32_MEMBER( timer_data_r ); + WRITE32_MEMBER( timer_data_w ); + READ32_MEMBER( timer_ctrl_r ); + WRITE32_MEMBER( timer_ctrl_w ); + + UINT32 scr1; + UINT32 scr2; + UINT32 irq_status; + UINT32 irq_mask; + int irq_level; + required_shared_ptr<UINT32> vram; + UINT8 scsictrl, scsistat; + + UINT32 phy[2]; + + attotime timer_tbase; + UINT16 timer_vbase; + UINT32 timer_data, timer_next_data; + UINT32 timer_ctrl; + emu_timer *timer_tm; + + UINT32 eventc_latch; + + void scc_irq(bool state); + void keyboard_irq(bool state); + void power_irq(bool state); + void nmi_irq(bool state); + + DECLARE_WRITE_LINE_MEMBER(scsi_irq); + DECLARE_WRITE_LINE_MEMBER(scsi_drq); + + void fdc_irq(bool state); + void fdc_drq(bool state); + + void net_tx_irq(bool state); + void net_rx_irq(bool state); + void net_tx_drq(bool state); + void net_rx_drq(bool state); + + void mo_irq(bool state); + void mo_drq(bool state); + + // static const SCSIConfigTable scsi_devices; + static const floppy_format_type floppy_formats[]; + static const cdrom_interface cdrom_intf; + static const harddisk_interface harddisk_intf; + +protected: + struct dma_slot { + UINT32 start, limit, chain_start, chain_limit, current; + UINT8 state; + bool supdate, restart, drq; + }; + + enum { + // write bits + DMA_SETENABLE = 0x01, + DMA_SETSUPDATE = 0x02, + DMA_SETREAD = 0x04, + DMA_CLRCOMPLETE = 0x08, + DMA_RESET = 0x10, + DMA_INITBUF = 0x20, + DMA_INITBUFTURBO = 0x40, + + // read bits + DMA_ENABLE = 0x01, + DMA_SUPDATE = 0x02, + DMA_READ = 0x04, + DMA_COMPLETE = 0x08, + DMA_BUSEXC = 0x10, + }; + + static const char *dma_targets[0x20]; + static const int dma_irqs[0x20]; + static const bool dma_has_saved[0x20]; + static const int scsi_clocks[4]; + + dma_slot dma_slots[0x20]; + UINT32 esp; + + int screen_sx, screen_sy, screen_skip; + bool screen_color; + + virtual void machine_start(); + virtual void machine_reset(); + + void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + void timer_start(); + void timer_update(); + + void irq_set(int id, bool raise); + void irq_check(); + const char *dma_name(int slot); + void dma_do_ctrl_w(int slot, UINT8 data); + void dma_drq_w(int slot, bool state); + void dma_read(int slot, UINT8 &val, bool &eof, bool &err); + void dma_write(int slot, UINT8 val, bool eof, bool &err); + void dma_check_update(int slot); + void dma_check_end(int slot, bool eof); + void dma_done(int slot); + void dma_end(int slot); +public: + DECLARE_DRIVER_INIT(nexts2); + DECLARE_DRIVER_INIT(next); + DECLARE_DRIVER_INIT(nextsc); + DECLARE_DRIVER_INIT(nextst); + DECLARE_DRIVER_INIT(nextct); + DECLARE_DRIVER_INIT(nextstc); + DECLARE_DRIVER_INIT(nextctc); + DECLARE_DRIVER_INIT(nexts); +}; + +#endif |