Intel 8080 - B1_Page_14

Chapter L Assembly Language and Processors
ASSEMBLY LANGUAGE CODING
LOAD
REGISTER WITH NUMBER
OF CHARACTERS TO BE MOVED
I
LOAD REGISTER PAIR B WITH
ADDRESS OF SOURCE (FLD1)
I
LOAD REGISTER PAIR 0 WITH
ADDRESS OF DESTINATION
(FLD2)
J
LOAD ACCUMULATOR WITH 1
BYTE FROM SOURCE FIELD
I
MOVE CHARACTER FROM
ACCUMULATOR TO DESTINA-
TION
FIELD
I
INCREMENT SOURCE ADDRESS
I
INCREMENT DESTINATION
ADDRESS
I
DECREMENT CHARACTER COUNl
NO
IS
CHARACTER
COUNT
=O?
YES
( CONTINUE
]
]
]
]
]
]
]
]
PLjMCODING
CALL MOVE(S,FLD2,FLD1);
CONTINUE
Figure 1-2. Comparison of Assembly Language with PLjM
1-4