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PSUBW
Subtracts two packed signed 16-bit integers from a XMM register and stores the result in the destination.
The following table covers what the source and destinations can be:
| source | destination(s) |
|---|---|
| xmm | xmm |
| m2 | xmm |
DO NOT support LOCK
This instruction is available in 64-bit mode and compatibility mode. It operates on the lower 128 bits of the XMM registers.
The instruction performs a signed subtraction. To avoid unexpected behavior, ensure that the input values do not exceed the range of a signed 16-bit integer (i16), as the instruction does not perform saturation; it will wrap around on overflow.