diff --git a/lab2/activity1.asm b/lab2/activity1.asm
new file mode 100644
index 0000000..9a98065
--- /dev/null
+++ b/lab2/activity1.asm
@@ -0,0 +1,10 @@
+.include "msp430g2553.inc"
+
+org 0xc000
+START:
+    mov.b   #11111111b, &P1DIR
+    mov.b   &P1IN,      R7      ;R7 = 0x01
+    bis.w   #CPUOFF,    SR
+
+org 0xfffe
+    dw      START
\ No newline at end of file
diff --git a/lab2/activity1.hex b/lab2/activity1.hex
new file mode 100644
index 0000000..af08be0
--- /dev/null
+++ b/lab2/activity1.hex
@@ -0,0 +1,3 @@
+:0CC00000F24322005742200032D0100012
+:02FFFE0000C041
+:00000001FF
diff --git a/lab2/lab2.asm b/lab2/lab2.asm
index 0c9dbc1..c1cbd3b 100644
--- a/lab2/lab2.asm
+++ b/lab2/lab2.asm
@@ -8,13 +8,9 @@ START:
     mov.b   #11110111b,     &P1DIR
 
     ; set digits
-    mov.b #0, &P1OUT
     mov.b   #01100001b,     &P1OUT  ; xxx6
-
     mov.b   #01000011b,     &P1OUT  ; xx46
-
     mov.b   #00010101b,     &P1OUT  ; x146
-
     mov.b   #01000111b,     &P1OUT  ; 4146
 
     ; disable
diff --git a/lab2/lab2.hex b/lab2/lab2.hex
index 79ab509..8ca95c9 100644
--- a/lab2/lab2.hex
+++ b/lab2/lab2.hex
@@ -1,5 +1,5 @@
 :10C0000031400004B240805A2001F240F700220083
-:10C01000C2432100F24061002100F24043002100B0
-:10C02000F24015002100F2404700210032D01000FC
+:10C01000F24061002100F24043002100F24015008F
+:0CC020002100F2404700210032D0100047
 :02FFFE0000C041
 :00000001FF
diff --git a/lab2/prog1.asm b/lab2/prog1.asm
index 47d15e8..ba23e45 100644
--- a/lab2/prog1.asm
+++ b/lab2/prog1.asm
@@ -1,17 +1,18 @@
 .include "msp430g2553.inc"
+
 org 0xc000
 start:
-    mov.w #WDTPW|WDTHOLD, &WDTCTL
-    mov.b #0x41, &P1DIR
-    mov.w #0x01, r8
+    mov.w   #WDTPW|WDTHOLD, &WDTCTL
+    mov.b   #0x41,          &P1DIR  ; 01000001b
+    mov.w   #0x01,          r8
 repeat:
-    mov.b r8, &P1OUT
-    xor.b #0x41, r8
-    mov.w #60000, r9
+    mov.b   r8,             &P1OUT
+    xor.b   #0x41,          r8
+    mov.w   #60000,         r9
 waiter:
-    dec r9
-    jnz waiter
-    jmp repeat
+    dec     r9
+    jnz     waiter
+    jmp     repeat
 
 org 0xfffe
-    dw start
\ No newline at end of file
+    dw      start
\ No newline at end of file