DVP-ES2-EX2-SS2-SA2-SX2-Operation Manual

3. Instruction Set
API Mnemonic Operands Function
37 WSFL P Word Shift Left
Controllers
ES2/EX2 SS2 SA2
SE
SX2
Type Bit Devices Word devices Program Steps
OP X Y M S K H KnX KnY KnM KnS T C D E F WSFL, WSFLP: 9 steps
S * * * * * * *
D * * * * * *
n 1 * *
n 2 * *
PULSE 16-bit 32-bit
SA2
SX2 ES2/EX2 SS2 SX2 ES2/EX2 SS2
SE
ES2/EX2 SS2 SA2
SE
Operands:
S: Start No. of source device D: Start No. of destination device n 1 : Length of data to be
shifted n 2 : Number of devices to be shifted as a group
Explanations:
1. This instruction performs a left shift from source device of n 2 registers starting from S to
destination device of n 1 registers starting from D.
2. This instruction is generally used in pulse execution mode (WSFLP).
3. The type of devices designated by S and D has to be the same, e.g. K n X, K n Y, K n M, and K n S
as a category and T, C, and D as another category
4. Provided the devices designated by S and D belong to K n type, the number of digits of K n in S
and D has to be the same.
5. Valid range of operand n1, n2 : 1≤ n2 ≤ n1 ≤512
Program Example:
1. When X0 is triggered, WSFLP instruction shifts D10~D13 into data stack D20~D35 and
D20~D35 also shift to the left with a group of 4 registers.
2. The figure below illustrates the left shift of the words in one scan
D35~D32 → Carry
D31~D28 → D35~D32
D27~D24 → D31~D28
D23~D20 → D27~D24
D13~D10 → D23~D20 completed
X0
WSFLP D10 D20 K16
K4
SA2
SE
SX2
Carry
4 registers in one group shift to the left
D13 D12 D11 D10
D35 D34 D33 D32 D31 D30 D29 D28 D27 D26 D25 D24 D23 D22 D21 D20
5
1 2
3 4
3-99