1 // license:BSD-3-Clause 2 // copyright-holders:Olivier Galibert 3 #ifndef MAME_MACHINE_NEXTMO_H 4 #define MAME_MACHINE_NEXTMO_H 5 6 #pragma once 7 8 9 class nextmo_device : public device_t 10 { 11 public: 12 nextmo_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 13 irq_wr_callback()14 auto irq_wr_callback() { return irq_cb.bind(); } drq_wr_callback()15 auto drq_wr_callback() { return drq_cb.bind(); } 16 17 void map(address_map &map); 18 19 uint8_t r4_r(); 20 void r4_w(uint8_t data); 21 uint8_t r5_r(); 22 void r5_w(uint8_t data); 23 uint8_t r6_r(); 24 void r6_w(uint8_t data); 25 uint8_t r7_r(); 26 void r7_w(uint8_t data); 27 uint8_t r8_r(); 28 void r8_w(uint8_t data); 29 uint8_t r9_r(); 30 void r9_w(uint8_t data); 31 uint8_t ra_r(); 32 void ra_w(uint8_t data); 33 uint8_t rb_r(); 34 void rb_w(uint8_t data); 35 uint8_t r10_r(offs_t offset); 36 void r10_w(offs_t offset, uint8_t data); 37 38 uint8_t dma_r(); 39 void dma_w(uint8_t data); 40 41 protected: 42 virtual void device_start() override; 43 virtual void device_reset() override; 44 45 private: 46 uint8_t sector[0x510]; 47 uint8_t r4, r5, r6, r7; 48 devcb_write_line irq_cb, drq_cb; 49 int sector_pos; 50 51 void check_dma_end(); 52 void check_ecc(); 53 void compute_ecc(); 54 }; 55 56 DECLARE_DEVICE_TYPE(NEXTMO, nextmo_device) 57 58 #endif // MAME_MACHINE_NEXTMO_H 59