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Project name QB-18
Program name MAIN
5.4.2 * (P) BIN 16-bit data multiplication
/ (P)
BIN 16-bit data division
X0
0D0K2000MOVP
X2
3
1
S2
X3
7D20K600D0/P
D
S1
2
S2
D10D0K30*P
DS1
1 ● When the input condition is turned on, the content of the device specified in
S1
is
multiplied by the content of the device specified in
S2
and the result is stored in
the device specified in
D
.
To store the result of 16-bit data × 16-bit data,
16 bits (1 word) is not enough.
Therefore, D10 which is specified in the
program and the next number D11 work as
the holder of the result.
K30
30
S1
D0
2000
S2
=
D11 D10
D
60000
This device is regarded as a 32-bit register to
hold the result. Left-most bit of D10 (B15) is
not a bit to determine positive and negative.
It is regarded as a part of the data.
The instructions must be regarded as 32 bits for programming with the calculation result of the
instruction. (such as the DMOV instruction and the DBCD instruction)
*(P)