From 9b9e656da951138f7d5523fd717c86a834211096 Mon Sep 17 00:00:00 2001
From: Nao Pross <naopross@thearcway.org>
Date: Mon, 28 Aug 2017 13:55:35 +0200
Subject: add test program for z80

---
 sw/z80_test/pio.h | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 sw/z80_test/pio.h

(limited to 'sw/z80_test/pio.h')

diff --git a/sw/z80_test/pio.h b/sw/z80_test/pio.h
new file mode 100644
index 0000000..0df2ed0
--- /dev/null
+++ b/sw/z80_test/pio.h
@@ -0,0 +1,37 @@
+#ifndef __PIO_H__
+#define __PIO_H__
+
+#include "devices.h"
+#include "types.h"
+
+#define PIO_A       0
+#define PIO_B       1
+
+#define PIO_MODE_BYTE_IN   0
+#define PIO_MODE_BYTE_OUT  1
+#define PIO_MODE_BYTE_BI   2
+#define PIO_MODE_BIT_IO    3
+
+#define PIO_INT_ACTIVE_HIGH     (1<<5)
+#define PIO_INT_AND_MODE        (1<<6)
+#define PIO_INT_ENABLE          (1<<7)
+
+
+inline void _pio_data(int port, uint8_t data);
+inline void _pio_control(int port, uint8_t cmd);
+
+void pio_set_mode(int port, int mode, uint8_t io);
+
+void pio_set_interrupts(int port, int control);
+void pio_set_interrupts_mask(int port, int control, uint8_t mask);
+
+// uint8_t pio_read_data(int port);
+uint8_t pio_read(int port);
+void pio_write(int port, uint8_t data);
+
+inline int pio_read_pin(int port, uint8_t pin);
+inline void pio_write_pin(int port, uint8_t pin);
+
+// TODO: implement mode (in/out/both) and interrupt vector
+
+#endif // __PIO_H__
-- 
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