Analog Devices ADSP-BF535 Blackfin, Hardware Reference Manual

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G-18 ADSP-BF535 Blackfin Processor Hardware Reference
modified addressing.
The process whereby the DAG generates an address that is incremented by
a value or a register.
Modify address.
The process by which a DAG increments the stored address without per-
forming a data move.
Modify register.
A DAG register that provides the increment or step size by which an index
register is pre- or post-modified during a register move.
MMR (Memory-mapped Register).
A location in main memory used by the processor as if it were a register.
Registers are high-speed memory locations in the processor that can be
addressed with just a few bits; memory-mapped registers must be
addressed in the same way as other memory locations and the speed of
MMR accesses is limited to the speed of the system’s data bus.
MMU.
See Memory Management Unit
MSB (Most Significant Bit).
The first or leftmost bit in the normal representation of a binary num-
ber—the bit of a binary number with the greatest weight (2(n-1)).
multifunction computations.
The parallel execution of multiple computational instructions. These
instructions complete in a single cycle, and they combine parallel opera-
tion of the computational units and memory accesses. The multiple
operations perform the same as if they were in corresponding single func-
tion computations.