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2 Instructions
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CP1E CPU Unit Instructions Reference Manual(W483)
• A jump instruction such as JMP(004) may be executed within a FOR-NEXT loop, but do not jump
beyond the FOR-NEXT loop.
• The following instructions cannot be used within FOR-NEXT loops:
• STEP DEFINE and STEP START: STEP(008)/SNXT(009)
Sample program
&3
Breaks FOR-NEXT loop 2.
Breaks FOR-NEXT loop 1.
Escapes from loop
when condition a
is ON.
Remaining
instructions are
processed as
NOP(000).
FOR
&3
BREAK
NEXT
a
FOR
&2
BREAK
NEXT
FOR
&3
BREAK
NEXT
21
#0000
D100
D0
D1
D2
D200
Repeated 3 times.
In the left example, the looped program section transfers
the content of D100 to the address indicated in D200
and then increments the content of D200 by 1.
FOR
&3
MOV
D100
@D200
++
D200
NEXT
MOV
#0000