Omron C500-LDP01-V1, Operation Manual

Page: 51 / 59

Appendix C
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,
Name
Mnemonic
Operand Data Areas Function Symbol
ARITHMETIC
SHIFT RIGHT
ASR(26)
ASR(26)
Wd
Each bit within a single word of data (Wd)
is shifted one bit to the right, with zero
written to bit 15 and bit 00 moving to CY.
0
Wd CY
15 00
Wd:
IR
Work bits (except word 12)
DM
ROTATE LEFT
ROL(27)
ROL(27)
Wd
Each bit within a single word of data (Wd)
is moved one bit to the left, with bit 15
moving to carry (CY), and CY moving to bit
00.
15 00
CY Wd
Wd:
IR
Work bits (except word 12)
DM
ROTATE RIGHT
ROR(28)
ROR(28)
Wd
15 00
CY Wd
Each bit within a single word of data (Wd)
is moved one bit to the right, with bit 00
moving to carry (CY), and CY moving to bit
15. Wd:
IR
Work bits (except word 12)
DM
COMPLEMENT
COM(29)
COM(29)
Wd
Inverts bit status of one word (Wd) of data,
changing 0s to 1s, and vice versa.
Wd Wd
Wd:
IR
Work bits (except word 12)
DM
BCD ADD
ADD(30)
ADD(30)
Au
Ad
R
CY CY
Adds two 4-digit BCD values (Au and Ad)
and content of CY, and outputs the result to
the specified result word (R).
Au + Ad +
R
Au/Ad:
IR
SR
Work
bits
TC
DM
# R:
IR
Work bits (ex-
cept word 12)
DM
BCD SUBTRACT
SUB(31)
SUB(31)
Mi
Su
R
Subtracts both the 4-digit BCD subtrahend
(Su) and content of CY, from the 4-digit
BCD minuend (Mi) and outputs the result to
the specified result word (R).
CY Mi -- Su -- R CY
Mi/Su:
IR
SR
Work
bits
TC
DM
# R:
IR
Work bits (ex-
cept word 12)
DM
AND WORD
ANDW(34)
ANDW(34)
I1
I2
R
Logically ANDs two 16-bit input words (I1
and I2) and sets the bits in the result word
(R) if the corresponding bits in the input
words are both ON. I1/I2:
IR
SR
Work
bits
TC
DM
# R:
IR
Work bits (ex-
cept word 12)
DM
OR WORD
ORW(35)
ORW(35)
I1
I2
R
Logically ORs two 16-bit input words (I1
and I2) and sets the bits in the result word
(R) when one or both of the corresponding
bits in the input words is/are ON. I1/I2:
IR
SR
Work
bits
TC
DM
# R:
IR
Work bits (ex-
cept word 12)
DM