diff --git a/01_exit/exit.s b/01_exit/exit.s
new file mode 100644
index 0000000..18c8b20
--- /dev/null
+++ b/01_exit/exit.s
@@ -0,0 +1,7 @@
+	.section .text
+	.global _start
+
+	_start:
+		addi a0, zero, 0
+		addi a7, zero, 93
+		ecall
diff --git a/01_exit/makefile b/01_exit/makefile
new file mode 100644
index 0000000..a685760
--- /dev/null
+++ b/01_exit/makefile
@@ -0,0 +1,12 @@
+
+build:
+	@as -o output.out ./*.s
+	@ld -o output output.out
+
+run: 
+	$(MAKE) build  
+	@./output $(EXEC)
+	$(MAKE) clear
+
+clear:
+	@rm -rf ./*.out output
diff --git a/02_hello/hello.s b/02_hello/hello.s
new file mode 100644
index 0000000..659ce42
--- /dev/null
+++ b/02_hello/hello.s
@@ -0,0 +1,23 @@
+	.equ STDOUT      , 0
+	.equ EXIT_SUCCESS, 0	
+	.equ WRITE       , 64
+	.equ EXIT        , 93
+
+	.section .data
+	msg: .ascii "Hello World!\n"
+	
+	.section .text
+	.global _start
+	
+	_start:
+		# WRITE
+		addi a0, zero, STDOUT        # STDOUT value
+		la   a1, msg                 # Load message
+		addi a2, zero, 13            # Message size		
+		addi a7, zero, WRITE         # Write syscall
+		ecall                        # Sycall execution
+
+		# EXIT
+		addi a0, zero, EXIT_SUCCESS  # Return value
+		addi a7, zero, EXIT          # Exit syscall
+		ecall                        # Syscall execution
diff --git a/02_hello/makefile b/02_hello/makefile
new file mode 100644
index 0000000..a685760
--- /dev/null
+++ b/02_hello/makefile
@@ -0,0 +1,12 @@
+
+build:
+	@as -o output.out ./*.s
+	@ld -o output output.out
+
+run: 
+	$(MAKE) build  
+	@./output $(EXEC)
+	$(MAKE) clear
+
+clear:
+	@rm -rf ./*.out output