// license:GPL-2.0+ // copyright-holders:Brandon Munger /********************************************************************** ROLM 9751 9005 Peripheral device controller emulation **********************************************************************/ #ifndef MAME_MACHINE_PDC_H #define MAME_MACHINE_PDC_H #pragma once #include "cpu/z80/z80.h" #include "machine/upd765.h" #include "machine/am9517a.h" #include "formats/pc_dsk.h" #include "machine/hdc92x4.h" #include "imagedev/mfmhd.h" //************************************************************************** // MACROS / CONSTANTS //************************************************************************** #define PDC_TAG "pdc" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> pdc_device class pdc_device : public device_t { public: /* Constructor and Destructor */ pdc_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock); /* Callbacks */ auto m68k_r_callback() { return m_m68k_r_cb.bind(); } auto m68k_w_callback() { return m_m68k_w_cb.bind(); } /* Read and Write members */ void hdd_irq(int state); /* Main CPU accessible registers */ uint8_t reg_p0; uint8_t reg_p1; uint8_t reg_p2; uint8_t reg_p3; uint8_t reg_p4; uint8_t reg_p5; uint8_t reg_p6; uint8_t reg_p7; uint8_t reg_p21; uint8_t reg_p38; uint32_t fdd_68k_dma_address; /* FDD <-> m68k DMA read/write address */ protected: /* Device-level overrides */ virtual void device_start() override; virtual void device_reset() override; /* Optional information overrides */ virtual void device_add_mconfig(machine_config &config) override; virtual ioport_constructor device_input_ports() const override; virtual const tiny_rom_entry *device_rom_region() const override; private: void i8237_hreq_w(int state); void i8237_eop_w(int state); uint8_t i8237_dma_mem_r(offs_t offset); void i8237_dma_mem_w(offs_t offset, uint8_t data); uint8_t i8237_fdc_dma_r(offs_t offset); void i8237_fdc_dma_w(offs_t offset, uint8_t data); uint8_t m68k_dma_r(); void m68k_dma_w(uint8_t data); void fdc_irq(int state); uint8_t p0_7_r(offs_t offset); void p0_7_w(offs_t offset, uint8_t data); uint8_t fdd_68k_r(offs_t offset); void fdd_68k_w(offs_t offset, uint8_t data); void p38_w(uint8_t data); uint8_t p38_r(); uint8_t p39_r(); void p50_5f_w(offs_t offset, uint8_t data); void pdc_io(address_map &map); void pdc_mem(address_map &map); /* Protected variables */ //uint32_t fdd_68k_dma_address; bool b_fdc_irq; /* Attached devices */ required_device m_pdccpu; required_device m_dma8237; required_device m_fdc; //required_device m_floppy; //required_device m_floppy; optional_device m_hdc9224; //mfm_harddisk_device* m_harddisk; required_shared_ptr m_pdc_ram; /* Callbacks */ devcb_read8 m_m68k_r_cb; devcb_write8 m_m68k_w_cb; }; /* Device type */ DECLARE_DEVICE_TYPE(PDC, pdc_device) #endif // MAME_MACHINE_PDC_H