Short Vector Instructions - ARM ARM1176JZF-S Technical Reference Manual

18.6

Short vector instructions

ARM DDI 0301H
ID012310
The VFPv2 architecture supports execution of short vector instructions of up to eight operations
on single-precision data and up to four operations on double-precision data. Short vectors are
most useful in graphics and signal-processing applications. They reduce code size, increase
speed of execution by supporting parallel operations and multiple transfers, and simplify
algorithms with high data throughput. Short vector operations issue the individual operations
specified in the instruction in a serial fashion. To eliminate data hazards, short vector operations
begin execution only after all source registers are available, and all destination registers are not
targets of other operations.
See Chapter 21 VFP Instruction Execution for more information on execution of short vector
instructions.
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Introduction to the VFP coprocessor
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