Computer Hardware User Manual

189
Digit Designator The following show examples of the data movements for various values of Di.
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
S
Di: 0031 Di: 0023
Di: 0030Di: 0010
S
S
S
0
1
2
3
D
0
1
2
3
D
0
1
2
3
D
0
1
2
3
D
Flags ER: At least one of the rightmost three digits of Di is not between 0 and 3.
Indirectly addressed DM word is non-existent. (Content of DM word is
not BCD, or the DM area boundary has been exceeded.)
5-16-10 TRANSFER BITS XFRB(62)
C: Control word
IR, SR, AR, DM, TC, HR, LR, #
S: First source word
IR, SR, AR, DM, HR, TC, LR
Ladder Symbols
Operand Data Areas
D: First destination word
IR, SR, AR, DM, HR, LR
XFRB(62)
C
S
D
@XFRB(62)
C
S
D
Limitations The specified source bits must be in the same data area.
The specified destination bits must be in the same data area.
Description When the execution condition is OFF, XFRB(62) is not executed. When the
execution condition is ON, XFRB(62) copies the specified source bits to the spe-
cified destination bits. The two rightmost digits of C specify the starting bits in S
and D and the leftmost two digits indicate the number of bits that will be copied.
First bit of S (0 to F)
First bit of D (0 to F)
Number of bits (01 to FF)
LSBMSB
C
Note Up to 255 (FF) bits can be copied at one time.
Data Movement Section 5-16