This is a collection of Intel®’ IA32® Software Developer's Manuals (URL of the day) and AMD' AMD64 Architecture Programmer's Manual together with the related specifications, application notes, white papers, and change logs. The collection aims to keep all available revisions. It was originally created by Michal Necasek, see OS/2 Museum.

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VABAL

Vector Absolute Difference and Accumulate Long subtracts the elements of one vector from the corresponding elements of another vector, and accumulates the absolute values of the results into the elements of the destination vector.

Operand elements are all integers of the same length, and the result elements are double the length of the operands.

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 this encoding

if size == '11' then See("Related encodings"); end; if Vd[0] == '1' then Undefined(); end; let unsigned : boolean = (U == '1'); let long_destination : boolean = TRUE; let esize : integer{} = 8 << UInt(size); let d : integer = UInt(D::Vd); let n : integer = UInt(N::Vn); let m : integer = UInt(M::Vm); let elements : integer = 64 DIV esize; let regs : integer = 1;

T1

Decode for this encoding

if size == '11' then See("Related encodings"); end; if Vd[0] == '1' then Undefined(); end; let unsigned : boolean = (U == '1'); let long_destination : boolean = TRUE; let esize : integer{} = 8 << UInt(size); let d : integer = UInt(D::Vd); let n : integer = UInt(N::Vn); let m : integer = UInt(M::Vm); let elements : integer = 64 DIV esize; let regs : integer = 1;

Assembler Symbols