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154
digits of HR 20. Although the status of each source word bit is not shown, it is
assumed that the bit with status 1 (ON) shown is the highest bit that is ON in
the word.
00000
DMPX(77)
010
HR 20
#0010
LR 10
HR 20
#0012
IR 010
01000
:
01011
1
01012
0
: :
:
01015
0
LR 10
LR 1000
LR 1001 1
LR 1002 0
: :
:
: :
:
LR 1015 0
Digit 0
IR 011
01100
:
01109
1
01110
0
: :
:
01115
0
Digit 1
Digit 2
Digit 3
B
9
1
8
LR 11
LR 1100
:
LR 1108 1
LR 1109 0
: :
:
LR 1115 0
HR 20
DMPX(77)
Address
Instruction
Operands
00000
LD
00000
00001
DMPX(77)
010
HR
20
#
0010
00002
DMPX(77)
LR
10
HR
20
#
0012
5-16-7
7-SEGMENT DECODER – SDEC(78)
S
: Source word (binary)
IR, SR, AR, DM, HR, TC, LR
Di
: Digit designator
IR, AR, DM, HR, TC, LR, #
Ladder Symbols
Operand Data Areas
D
: First destination word
IR, AR, DM, HR, LR
SDEC(78)
S
Di
D
@SDEC(78)
S
Di
D
Di must be within the values given below
All destination words must be in the same data area.
When the execution condition is OFF, SDEC(78) is not executed. When the
execution condition is ON, SDEC(78) converts the designated digit(s) of S
into the equivalent 8-bit, 7-segment display code and places it into the desti-
nation word(s) beginning with D.
Limitations
Description
Data Conversion
Section 5-16