diff --git a/OPD/OPDLab5/main.asm b/OPD/OPDLab5/main.asm
new file mode 100644
index 0000000..1b6dcf4
--- /dev/null
+++ b/OPD/OPDLab5/main.asm
@@ -0,0 +1,31 @@
+org 0x05D6
+start: cla
+A: in 5
+and #0x40
+beq A
+in 4
+swab
+st x
+cmp stopsym
+beq stop
+B: in 5
+and #0x40
+beq B
+in 4
+or x
+st x
+and #0xFF
+cmp stopsym
+beq stop
+ld x
+st (next)+
+jump start
+stop: ld x
+st (next)+
+hlt
+next: word $line
+stopsym: word 0x0000
+x: word 0x0000
+
+org 0x0603
+line: word ?
\ No newline at end of file
diff --git a/OPD/OPDLab5/report.pdf b/OPD/OPDLab5/report.pdf
new file mode 100644
index 0000000..febb471
Binary files /dev/null and b/OPD/OPDLab5/report.pdf differ