diff --git a/test.bin b/test.bin
index abd6477..73256dc 100644
Binary files a/test.bin and b/test.bin differ
diff --git a/tinyriscv.h b/tinyriscv.h
new file mode 100644
index 0000000..ece731a
--- /dev/null
+++ b/tinyriscv.h
@@ -0,0 +1,36 @@
+#ifndef TINYRISCV_H
+#define TINYRISCV_H
+
+#include <stdint.h>
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+
+typedef int8_t i8;
+typedef int16_t i16;
+typedef int32_t i32;
+
+void tinyriscv_step(){
+
+	switch(opcode){
+	case /*R-type*/ 0x33:
+		switch(func3){
+		case /*ADD*/ 0x0: x[rd] = x[rs1] + x[rs2]; break;
+		#ifdef TINYRISCV_VERBOSE 
+		printf("add rd, rs1, rs2\n");
+		#endif
+		}
+		break;
+	}
+}
+
+
+
+
+case ADD: x[rd] = x[rs1] + x[rs2]; break;
+
+
+
+
+#endif //TINYRISCV_H
\ No newline at end of file