ARM Architecture Reference Manual ARMv7-A and ARMv7-R edition

Assembler syntax
Instruction Details
VPADD.F32 {,} , Encoded as Q = 0, sz = 0
where:
See Standard assembler syntax fields on page A8-7. An ARM VPADD instruction
must be unconditional.
, , The destination vector, the first operand vector, and the second operand vector.
Operation
if ConditionPassed() then
EncodingSpecificOperations(); CheckAdvSIMDEnabled();
bits(64) dest;
h = elements/2;
for e = 0 to h-1
Elem[dest,e,esize] = FPAdd(Elem[D[n],2*e,esize], Elem[D[n],2*e+1,esize], FALSE);
Elem[dest,e+h,esize] = FPAdd(Elem[D[m],2*e,esize], Elem[D[m],2*e+1,esize], FALSE);
D[d] = dest;
Exceptions
Undefined Instruction.
Floating-point exceptions: Input Denormal, Invalid Operation, Overflow, Underflow, and Inexact.
ARM DDI 0406B Copyright © 1996-1998, 2000, 2004-2008 ARM Limited. All rights reserved. A8-687