IDEC FC4A-C10R2 User Manual page 243

Repeat Operation in the ANDW, ORW, and XORW Instructions
Source operands S1 and S2 and destination operand D1 can be designated to repeat individually or in combination. When
destination operand D1 is not designated to repeat, the final result is set to destination operand D1. When repeat is desig-
nated, consecutive operands as many as the repeat cycles starting with the designated operand are used.
Since the repeat operation works similarly on the ANDW (AND word), ORW (OR word), and XORW (exclusive OR
word) instructions of the word and integer data types, the following examples are described using the ANDW instruction
of the word data type.
Repeat One Source Operand
When only S1 (source) is designated to repeat, the final result is set to destination operand D1.
ANDW(W)
SOTU
I1
Repeat Destination Operand Only
When only D1 (destination) is designated to repeat, the same result is set to 3 operands starting with D1.
ANDW(W)
SOTU
I1
Repeat Two Source Operands
When S1 and S2 (source) are designated to repeat, the final result is set to destination operand D1.
ANDW(W)
SOTU
I1
Repeat Source and Destination Operands
When S1 (source) and D1 (destination) are designated to repeat, different results are set to 3 operands starting with D1.
ANDW(W)
SOTU
I1
Repeat All Source and Destination Operands
When all operands are designated to repeat, different results are set to 3 operands starting with D1.
ANDW(W)
SOTU
I1
S1 R S2 – D1 – REP
D10 D20 D30 3
S1 – S2 – D1 R REP
D10 D20 D30 3
S1 R S2 R D1 – REP
D10 D20 D30 3
S1 R S2 – D1 R REP
D10 D20 D30 3
S1 R S2 R D1 R REP
D10 D20 D30 3
« FC4A M
ICRO
12: B
OOLEAN
S1 (Repeat = 3)
D10
D11
D12
S1 (Repeat = 0)
D10
D10
D10
S1 (Repeat = 3)
D10
D11
D12
S1 (Repeat = 3)
D10
D11
D12
S1 (Repeat = 3)
D10
D11
D12
S U ' M »
MART SER S ANUAL
C I
OMPUTATION
S2 (Repeat = 0)
·
D20
·
D20
·
D20
S2 (Repeat = 0)
·
D20
·
D20
·
D20
S2 (Repeat = 3)
·
D20
·
D21
·
D22
S2 (Repeat = 0)
·
D20
·
D20
·
D20
S2 (Repeat = 3)
·
D20
·
D21
·
D22
NSTRUCTIONS
D1 (Repeat = 0)
(D30)
(D30)
D30
D1 (Repeat = 3)
D30
D31
D32
D1 (Repeat = 0)
(D30)
(D30)
D30
D1 (Repeat = 3)
D30
D31
D32
D1 (Repeat = 3)
D30
D31
D32
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