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Example The following example copies the contents of the 300 words from DM 0000
through DM 0299 to EM 2000 through EM 2299 in the current EM bank.
XFR2(––)
#0300
DM 0000
#2000
00000
Address Instruction Operands
00200 LD 00000
00201 XFR2(––)
# 0300
DM 0000
# 2000
5-16-12 EM BANK TRANSFER – BXF2(––)
C: FIrst control word
IR, SR, AR, DM, HR, TC, LR, #
S: Starting source word
IR, SR, AR, DM, HR, TC, LR, #
Ladder Symbols
Operand Data Areas
D: Starting destination word
IR, SR, AR, DM, HR, TC, LR, #
BXF2(––)
C
S
D
@BXF2(––)
C
S
D
Limitations The value in C+1 must be BCD from 1 to 6144.
S and S+N must be in the same data area, as must D and D+N.
Description When the execution condition is OFF, BXF2(––) is not executed. When the
execution condition is ON, BXF2(––) copies the contents of S, S+1, ..., S+N to D,
D+1, ..., D+N. If a constant is used for S or D, the constant specifies an address in
the source or destination EM bank specified in C.
Control Words C contains the source and destination bank numbers if data is being transferred
to or from EM. The bank numbers are ignored unless a constant is used for S or
D.
C+1 contains the number of words to transfer and must be BCD (1 to 6144).
Control word Bits Function
C
0 to 7 Specifies the source bank number (00 to 02).
8 to 15 Specifies the destination bank number (00 to 02).
C+1 0 to 15 Specifies the number of words to transfer (1 to 6144).
Flags ER: N is not BCD.
S and S+N or D and D+N are not in the same data area.
Indirectly addressed DM word is non-existent. (Content of DM word is
not BCD, or the DM area boundary has been exceeded.)
Data Movement Section 5-16