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C INSTRUCTION OPCODES
This appendix describes the operation codes (or, "opcodes") for each
Blackfin instruction. The purpose is to specify the instruction codes for
Blackfin software and tools developers.
Introduction
This format separates instructions as much as practical for maximum clar-
ity. Users are better served by clear, distinct opcode descriptions instead of
confusing tables of convoluted algorithms to construct each opcode. The
format minimizes the number of variables the reader must master to repre-
sent or recognize bit fields within the opcodes. This more explicit format
expands the listings to more pages, but is easier and quicker to reference.
The success of this document is measured by how little time it takes for
you to find the information you want.
However, some instructions (such as Multiply-and-Accumulate and Vec-
tor Multiply-and-Accumulate) support so many options and variations
that individual listings for each version are simply not manageable. In
those cases, bit fields are defined and used.
Appendix Organization
This appendix lists each instruction with its corresponding opcode.
Instructions are grouped according to function.
The instructions also appear in order of their corresponding opcodes in
"Instructions Listed By Operation Code" on page
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
C-139.
C-1
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