avr/z80-if.h

   1
   2 #define ZST_ACQUIRED    0x01
   3 #define ZST_RUNNING     0x02
   4
   5 typedef enum {
   6         RESET           = 0x00,
   7         RESET_AQRD      = ZST_ACQUIRED,
   8         RUN             = ZST_RUNNING,
   9         RUN_AQRD        = ZST_RUNNING | ZST_ACQUIRED,
  10 } zstate_t;
  11
  12 typedef enum {LOW, HIGH} level_t;
  13
  14 zstate_t z80_runstate(void);
  15 void z80_setup_bus(void);
  16 void z80_request_bus(void);
  17 void z80_release_bus(void);
  18 zstate_t z80_request_bus_save(void);
  19 void z80_release_bus_save(zstate_t prev);
  20 void z80_reset(void);
  21 void z80_reset_pulse(void);
  22 void z80_run(void);
  23 int z80_stat_reset(void);
  24 //void z80_busreq(level_t level);
  25 void z80_busreq_hpulse(void);
  26 int z80_stat_halt(void);
  27
  28 void z80_write(uint32_t addr, uint8_t data);
  29 uint8_t z80_read(uint32_t addr);
  30 void z80_memset(uint32_t addr, uint8_t data, uint32_t length);
  31 void z80_write_block(const FLASH uint8_t *src, uint32_t dest, uint32_t length);
  32
  33
  34 typedef enum fifo_t {fifo_in, fifo_out, NUM_FIFOS} fifo_t;
  35
  36 void z80_memfifo_init(const fifo_t f, uint32_t adr);
  37 int z80_memfifo_is_empty(const fifo_t f);
  38 int z80_memfifo_is_full(const fifo_t f);
  39 uint8_t z80_memfifo_getc(const fifo_t f);
  40 void z80_memfifo_putc(fifo_t f, uint8_t val);
  41
  42 void z80_setup_msg_fifo(void);
  43 void z80_init_msg_fifo(uint32_t addr);
  44 int z80_msg_fifo_getc(void);