Saturating NEON instructions

Saturating instructions saturate the result to the value of the upper limit or lower limit if the result overflows or underflows. The saturation limits depend on the datatype of the instruction. See Table 39 for the ranges that NEON saturating instructions saturate to, where x is the result of the operation.

Table 39. NEON saturation ranges

Data typeSaturation range of x
S8-27 <= x < 27
S16-215 <= x < 215
S32-231 <= x < 231
S64-263 <= x < 263
U80 <= x < 28
U160 <= x < 216
U320 <= x < 232
U640 <= x < 264

Saturating instructions are specified using a Q prefix between the V and the instruction mnemonic.

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