Add 'OPD/OPDLab4/' from commit 'ac3927c31a1a2fb5434d612ac9ff1feda27d3672'

git-subtree-dir: OPD/OPDLab4
git-subtree-mainline: fc2fb68827
git-subtree-split: ac3927c31a

OPD/OPDLab4/main.asm

@@ -0,0 +1,46 @@
+ORG 0x05C6
+START: CLA
+ST result
+LD X
+INC
+PUSH
+CALL 0x06E5
+POP
+ADD result
+ST result
+LD Z
+PUSH
+CALL 0x06E5
+POP
+ADD result
+ST result
+LD Y
+DEC
+PUSH
+CALL 0x06E5
+POP
+SUB result
+ST result
+HLT
+Z: WORD 0xFFF4
+Y: WORD 0x0000
+X: WORD 0xFDDE
+result: WORD ?
+
+ORG 0x06E5
+LD &1
+BEQ A
+BPL B
+A: CMP const1
+BLT B
+BEQ B
+ASL 
+ASL
+SUB &1
+ADD const2
+JUMP C
+B: LD const1
+C: ST &1
+RET
+const1: WORD 0xFAB3
+const2: WORD 0x0064