1 files changed, 46 insertions, 0 deletions
diff --git a/include/z80-if.h b/include/z80-if.h
new file mode 100644
index 0000000..b02fe23
--- /dev/null
+++ b/include/z80-if.h
@@ -0,0 +1,46 @@
+
+#define ZST_ACQUIRED	0x01
+#define ZST_RUNNING	0x02
+
+typedef enum { 
+	RESET		= 0x00,
+	RESET_AQRD	= ZST_ACQUIRED,
+	RUNNING		= ZST_RUNNING,
+	RUNNING_AQRD	= ZST_RUNNING | ZST_ACQUIRED,
+} zstate_t;
+
+typedef enum { 
+	Reset,
+	Request,
+	Release,
+	Run,
+	Restart,
+	M_Cycle
+} bus_cmd_t;
+
+typedef enum {LOW, HIGH} level_t;
+
+zstate_t z80_bus_state(void);
+zstate_t z80_bus_cmd(bus_cmd_t cmd);
+void z80_setup_bus(void);
+int z80_stat_reset(void);
+//void z80_busreq(level_t level);
+int z80_stat_halt(void);
+
+void z80_write(uint32_t addr, uint8_t data);
+uint8_t z80_read(uint32_t addr);
+void z80_memset(uint32_t addr, uint8_t data, uint32_t length);
+void z80_write_block(const FLASH uint8_t *src, uint32_t dest, uint32_t length);
+
+
+typedef enum fifo_t {fifo_in, fifo_out, NUM_FIFOS} fifo_t;
+
+void z80_memfifo_init(const fifo_t f, uint32_t adr);
+int z80_memfifo_is_empty(const fifo_t f);
+int z80_memfifo_is_full(const fifo_t f);
+uint8_t z80_memfifo_getc(const fifo_t f);
+void z80_memfifo_putc(fifo_t f, uint8_t val);
+
+void z80_setup_msg_fifo(void);
+void z80_init_msg_fifo(uint32_t addr);
+int z80_msg_fifo_getc(void);