Contents
xiii
MISC
Stack Control .................................................................................. 15–86
Mode Control ................................................................................. 15–89
Modify Address Register.............................................................. 15–91
NOP .................................................................................... 15–92
Interrupt Enable/Disable ............................................................. 15–93
MULTIFUNCTION
ALU/MAC/SHIFT Operation with Memory Read .................... 15–94
ALU/MAC/SHIFT Operation with Register to Register Move .15–98
ALU/MAC/SHIFT Operation with Memory Write ................. 15–101
Data & Program Memory Read ................................................. 15–105
ALU/MAC Operation with Data & Program Memory Read ... 15–106
APPENDIX A INSTRUCTION CODING
A.1 OPCODES ....................................................................................... A–1
A.2 ABBREVIATION CODING............................................................. A–7
APPENDIX B DIVISION EXCEPTIONS
B.1 DIVISION FUNDAMENTALS ........................................................B–1
B.1.1 Signed Division ............................................................................B–1
B.1.2 Unsigned Division .......................................................................B–2
B.1.3 Output Formats............................................................................B–2
B.1.4 Integer Division ...........................................................................B–3
B.2 ERROR CONDITIONS .....................................................................B–3
B.2.1 Negative Divisor Error................................................................B–3
B.2.2 Unsigned Division Error.............................................................B–4
B.3 SOFTWARE SOLUTION ..................................................................B–4
APPENDIX C NUMERIC FORMATS
C.1 OVERVIEW ....................................................................................... C–1
C.2 UNSIGNED OR SIGNED: TWOS-COMPLEMENT FORMAT.. C–1
C.3 INTEGER OR FRACTIONAL ......................................................... C–1
C.4 BINARY MULTIPLICATION ......................................................... C–3
C.4.1 Fractional Mode And Integer Mode ........................................ C–4
C.5 BLOCK FLOATING-POINT FORMAT ......................................... C–5
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