Table of Contents
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Multiplier Instruction Summary ............................................ 2-38
Multiplier Instruction Options .......................................... 2-40
Multiplier Data Flow Details ................................................. 2-42
Multiply Without Accumulate ............................................... 2-44
Special 32-Bit Integer MAC Instruction ................................. 2-46
Dual MAC Operations .......................................................... 2-47
Barrel Shifter (Shifter) ................................................................. 2-48
Shifter Operations ................................................................. 2-48
Two-Operand Shifts .......................................................... 2-49
Immediate Shifts ........................................................... 2-49
Register Shifts ............................................................... 2-50
Three-Operand Shifts ....................................................... 2-50
Immediate Shifts ........................................................... 2-50
Register Shifts ............................................................... 2-51
Bit Test, Set, Clear, Toggle ................................................ 2-52
Field Extract and Field Deposit ......................................... 2-52
Shifter Instruction Summary .................................................. 2-53
User Mode .................................................................................... 3-3
Protected Resources and Instructions ....................................... 3-4
Protected Memory ................................................................... 3-5
Entering User Mode ................................................................ 3-5
Example Code to Enter User Mode Upon Reset ................... 3-5
Return Instructions That Invoke User Mode ........................ 3-5
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
Contents
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