Renamed the three CPU folders to their final names.

src/codegen/codegen_accumulate.h

@@ -0,0 +1,13 @@
+enum
+{
+        ACCREG_ins    = 0,
+        ACCREG_cycles = 1,
+        
+        ACCREG_COUNT
+};
+
+struct ir_data_t;
+
+void codegen_accumulate(int acc_reg, int delta);
+void codegen_accumulate_flush(void);
+void codegen_accumulate_reset();