A system includes a memory, a sequencer, and a set of application engines in
communication
with the sequencer and memory. The set of application engines includes a streaming
input engine for retrieving data from the memory and supplying the data to the
set of application engines. In one embodiment, the streaming input engine includes
a fetch engine with a memory opcode output and address output for accessing cache
memory. The streaming input engine also includes an alignment circuit for buffering
and aligning data retrieved from the memory. The alignment circuit includes a data
buffer, register, byte selector, and shifter. The data buffer stores data accessed
by the fetch engine. The register stores old data from the data buffer's output
when the buffer sources new data. The byte selector selects data from the data
buffer and the register. The shifter receives data selected by the byte selector
and shifts a number of the bytes onto an output for retrieval by an output register
coupled to the set of application engines.
