185
5-14-23ONE DIGIT SHIFT LEFT: SLD(068)
(068)
SLD St E
E: End word CIO, G, A, DM
St: Starting word CIO, G, A, DM
Operand Data AreasLadder Symbol
Variations
j SLD(068)
When the execution condition is OFF, SLD(068) is not executed. When the ex-
ecution condition is ON, SLD(068) shifts data between St and E (inclusive) by
one digit (four bits) to the left. 0 is written into the rightmost digit of the St, and the
content of the leftmost digit of E is lost.
5
E
8 1
St
F C 97D
Lost data 0
...
St must be less than or equal to E. St and E must be in the same data area.
The shift operation might not be completed if a power failure occurs during ex-
ecution of the instruction.
Note Refer to page 115 for general precautions on operand data areas.
Flags ER (A50003): Content of *DM word is not BCD when set for BCD.
St and E are in different areas, or St is greater than E.
Example When CIO 000000 is ON in the following example, 0 is shifted into digit 0 of
D00010, the contents of all digits in D00010 are shifted one digit to the left, the
content of digit 3 of D00010 is shifted to digit 0 of D00011, the contents of all dig-
its in D00011 are shifted one digit to the left, the content of digit 3 of D00011 is
shifted to digit 0 of D00012, the contents of all digits in D00012 are shifted one
digit to the left, and the content of digit 3 of D00012 is lost.
Address Instruction Operands
00000 LD 00000
00001 SLD(068)
D00010
D00012
1 2 3 4
16
3
16
2
16
1
16
0
E: D00012
St: D00010St+1: D00011
5 6 7 8
16
3
16
2
16
1
16
0
9 A B C
16
3
16
2
16
1
16
0
2 3 4 5 6 7 8 9 A B C 0
16
3
16
2
16
1
16
0
16
3
16
2
16
1
16
0
16
3
16
2
16
1
16
0
E: D00012
St: D00010St+1: D00011
“0”
Lost data
Description
Precautions
Shift Instructions Section 5-14
0000
00
(068)
SLD D00010 D00012
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