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DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming
3-328
API Mnemonic Operands Function
147
D SWAP P
Byte swap
Controllers
ES2/EX2 SS2 SA2
SE
SX2
Bit Devices Word devices Program Steps Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S * * * * * ***
SWAP, SWAPP: 3 steps
DSWAP, DSWAPP: 5
steps
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
Operands:
S: Device for byte swap.
Explanations:
1. For 16-bit instruction, high byte and low byte of the register will be swapped.
2. For 32-bit instruction, byte swap is conducted on the 2 registers separately.
3. This instruction adopts pulse execution instructions (SWAPP, DSWAPP)
4. If operand D uses device F, only 16-bit instruction is available
Program Example 1:
When X0 = ON, high byte and low byte of D0 will be swapped.
D0
SWAPP
X0
D0
High Byte Low Byte
Program Example 2:
When X0 = ON, high byte and low byte of D11 will be swapped as well as the high byte and low byte
of D10.
D10DSWAP
X0
D11
High Byte Low Byte
D01
High Byte Low Byte