5-16 Bcd Calculations - Omron SYSMAC C20P Operation Manual

BCD Calculations
Flags
Example
5–16 BCD Calculations
Di : 0011
R
0
S
1
S + 1
2
3
Di : 0013
R
0
S
1
S + 1
2
3
ER: Undefined digit designator, or S plus number of digits exceeds a data
area.
Content of a source word is 0000.
When 0000 is ON, the following diagram encodes IR words 10 and 11 to the
first two digits of HR 2 and then encodes DM 10 and 11 to the last two digits
of HR 2. Although the status of each source word bit is not shown, it is as-
sumed that the bit with status 1 (ON) shown is the highest bit that is ON in
the word.
0000
IR 010
1000 1100
:
1011 1 1109
1012 0 1110
: :
1015 0 1115
DM 10
DM1000 DM1100
:
DM1001 1 DM1108 1
DM1002 0 DM1109 0
: :
DM1015 0 DM1115 0
The BCD calculation instructions perform mathematic operations on BCD
data.
Di : 0030
S
S + 1
S + 2
S + 3
Di : 0032
S
S + 1
S + 2
S + 3
IR 011
:
1
0
: :
HR 2
0
Digit 0
Digit 1
DM 11
Digit 2
Digit 3
:
: :
Section 5–16
R
0
1
2
3
R
0
1
2
3
DMPX(77)
10
HR 2
#0010
DMPX(77)
DM10
HR 2
#0012
B
9
1
8
89