VMAX (integer)

Vector Maximum compares corresponding elements in two vectors, and copies the larger of each pair into the corresponding element in the destination vector.

The operand vector elements can be any one of:

• 8-bit, 16-bit, or 32-bit signed integers.
• 8-bit, 16-bit, or 32-bit unsigned integers.

The result vector elements are the same size as the operand vector elements.

Depending on settings in the CPACR, NSACR, and HCPTR registers, and the Security state and PE mode in which the instruction is executed, an attempt to execute the instruction might be undefined, or trapped to Hyp mode. For more information see Enabling Advanced SIMD and floating-point support.

It has encodings from the following instruction sets: A32 ( A1 ) and T32 ( T1 ) .

A1

Decode for all variants of this encoding

if Q == '1' && (Vd<0> == '1' || Vn<0> == '1' || Vm<0> == '1') then UNDEFINED; if size == '11' then UNDEFINED; constant maximum = (op == '0'); constant unsigned = (U == '1'); constant integer esize = 8 << UInt(size); constant elements = 64 DIV esize; constant d = UInt(D:Vd); constant n = UInt(N:Vn); constant m = UInt(M:Vm); constant regs = if Q == '0' then 1 else 2;

T1

Decode for all variants of this encoding

if Q == '1' && (Vd<0> == '1' || Vn<0> == '1' || Vm<0> == '1') then UNDEFINED; if size == '11' then UNDEFINED; constant maximum = (op == '0'); constant unsigned = (U == '1'); constant integer esize = 8 << UInt(size); constant elements = 64 DIV esize; constant d = UInt(D:Vd); constant n = UInt(N:Vn); constant m = UInt(M:Vm); constant regs = if Q == '0' then 1 else 2;