Introduction.

Workshop PG5 Exercise Chapter 7
6:
Result = CMP 100
90
100 > 90
=>
ZerroFlag = L
PositiveFlag = H
NegativeFlag = L
ErrorFlag = Not changed
How can you know?
1. Solution: Enter the program into the Instructionlist editor, place the
cursor on the instruction CMP and press the button F1 => A help on
the instruction will come up.
2. Solution: Built and download the program and trace online to the
instruction CPM => you’ll see the state of all the Arithmetic flags:
3. Solution: Have a look into the instruction booklet for more information
about the instruction CMP.
7:
If you load a constant into a register, then the execution of the “load” instruction
doesn’t depend on the ACCU state. Therefore the program
would work the same. Have a look into the booklet for some help on the
instruction “LD”. Note: An instruction LD T (load timer) or LD C (load
counter) would depend on the ACC state but not a load register!
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