ir: add initial ir translation module

Signed-off-by: Ronald Caesar <github43132@proton.me>

include/bal_types.h

@@ -10,6 +10,7 @@
 
 typedef uint64_t bal_instruction_t;
 typedef uint16_t bal_instruction_count_t;
+typedef uint16_t bal_ssa_id_t;
 typedef uint8_t  bal_bit_width_t;
 
 typedef enum

src/bal_translator.h

@@ -0,0 +1,31 @@
+/** @file bal_translator.h
+ *
+ * @brief ARM to Ballistic IR Translation Interface.
+ *
+ * @details
+ *
+ * This module represents the frontend of Ballistic. It performas the following
+ * in a single pass:
+ *
+ * 1. Fetch
+ * 2. Decode
+ * 3. SSA Construction
+ */
+
+#ifndef BAL_TRANSLATOR_H
+#define BAL_TRANSLATOR_H
+
+#include "bal_engine.h"
+#include "bal_types.h"
+
+typedef struct
+{
+    bal_instruction_t     *instructions;
+    bal_bit_width_t       *ssa_bit_widths;
+    bal_source_variable_t *source_variables;
+    size_t                 instruction_count;
+} bal_translation_context_t;
+
+#endif /* BAL_TRANSLATOR_H */
+
+/*** end of file ***/