included rex.h

README.md

@@ -2,7 +2,8 @@
 
 `wcc` is a C compiler targeted at the WRAMP architecture. It is based on
 `lcc`, a retargetable compiler. Copyright information for `lcc` can be found
-in [CPYRIGHT](CPYRIGHT).
+in [CPYRIGHT](CPYRIGHT). Also included in this repo is `rex.h`, a header
+file containning definitions for WRAMP IO structures.
 
 ## Usage
 

rex.h

@@ -0,0 +1,78 @@
+#ifndef REX_H
+#define REX_H
+
+/**
+ * REX Serial Ports
+ **/
+typedef volatile struct
+{
+	int Tx;
+	int Rx;
+	int Ctrl;
+	int Stat;
+	int Iack;
+} RexSp_t;
+
+#define SP_STAT_RX_RDY    (1 <<  0)
+#define SP_STAT_TX_RDY    (1 <<  1)
+#define SP_STAT_ERR_OVR   (1 <<  2)
+#define SP_STAT_ERR_FRM   (1 <<  3)
+#define SP_STAT_ERR_PAR   (1 <<  4)
+
+#define SP_CTRL_TX_INT_EN (1 <<  9)
+#define SP_CTRL_RX_INT_EN (1 << 10)
+#define SP_CTRL_INT_EN    (1 << 11)
+
+#define SP_IACK_RX         (1 <<  0)
+#define SP_IACK_TX         (1 <<  1)
+#define SP_IACK_ERR        (1 <<  2)
+
+
+/**
+ * REX Timer
+ **/
+typedef volatile struct
+{
+	int Ctrl;
+	int Load;
+	int Count;
+	int Iack;
+} RexTimer_t;
+
+/**
+ * REX Parallel Port
+ **/
+typedef volatile struct
+{
+	int Switches;
+	int Buttons;
+	int LeftSSD;
+	int RightSSD;
+	int Ctrl;
+	int Iack;
+	int SSD0;
+	int SSD1;
+	int SSD2;
+	int SSD3;
+	int LEDs;
+} RexParallel_t;
+
+/**
+ * REX User Interrupt Button
+ **/
+typedef volatile struct
+{
+	int Iack;
+} RexUserInt_t;
+
+/**
+ * Declarations
+ **/
+#define RexSp1 		((RexSp_t*)0x70000)
+#define RexSp2 		((RexSp_t*)0x71000)
+#define RexTimer  	((RexTimer_t*)0x72000)
+#define RexParallel	((RexParallel_t*)0x73000)
+#define RexUserInt	((RexUserInt_t*)0x7f000)
+
+#endif
+