Motorola DSP56305 Manuel d'utilisateur Page 11

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1-4 Optimizing DSP56300/DSP56600 Applications MOTOROLA
Introduction
Enhancements over the DSP56000
MAC (uu) Unsigned MAC
√√
DMAC Double-Precision MAC
√√
PLOCK Lock Cache Sector
PUNLOCK Unlock Cache Sector
PFLUSH Flush Cache Sectors
PFLUSHUN Flush Unlocked Cache
Sectors
PFREE free all locked sectors
LRA Load Relative Address
√√
BSR / BScc Branch Subroutine
always/conditionally
√√
BRA / Bcc Branch Target
always/conditionally
√√
BSset / BSclr Branch Subroutine on Bit
Set/Clear
BRset /
BRclr
Branch Target on Bit
Set/Clear
DO Forever DO-Loop Forever
√√
DOR Forever DO-Loop Forever Relative
BRKcc Break Loop Conditionally
√√
TRAPcc TRAP Conditionally
√√
IFcc Execute Instruction
Conditionally
√√
VSL Viterbi Shift Left
√√
Table 1-1
New Instructions in DSP56300 and DSP56600
Opcodes Opcodes
Exist in
DSP56300?
Exist in
DSP56600?
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