80C186EC/80C188EC Microprocessor User's Manual

CONTENTS
14.3.1.2 Arithmetic Instructions ...................................................................................14-3
14.3.1.3 Comparison Instructions ................................................................................14-5
14.3.1.4 Transcendental Instructions ..........................................................................14-5
14.3.1.5 Constant Instructions .....................................................................................14-6
14.3.1.6 Processor Control Instructions ......................................................................14-6
14.3.2 80C187 Data Types ................................................................................................14-7
14.4 MICROPROCESSOR AND COPROCESSOR OPERATION...................................... 14-7
14.4.1 Clocking the 80C187 .............................................................................................14-10
14.4.2 Processor Bus Cycles Accessing the 80C187 ......................................................14-10
14.4.3 System Design Tips ..............................................................................................14-11
14.4.4 Exception Trapping ...............................................................................................14-13
14.5 EXAMPLE MATH COPROCESSOR ROUTINES...................................................... 14-13
CHAPTER 15
ONCE MODE
15.1 ENTERING/LEAVING ONCE MODE........................................................................... 15-1
APPENDIX A
80C186 INSTRUCTION SET ADDITIONS AND EXTENSIONS
A.1 80C186 INSTRUCTION SET ADDITIONS ................................................................... A-1
A.1.1 Data Transfer Instructions ...................................................................................... A-1
A.1.2 String Instructions ................................................................................................... A-2
A.1.3 High-Level Instructions ........................................................................................... A-2
A.2 80C186 INSTRUCTION SET ENHANCEMENTS......................................................... A-8
A.2.1 Data Transfer Instructions ...................................................................................... A-8
A.2.2 Arithmetic Instructions ............................................................................................ A-9
A.2.3 Bit Manipulation Instructions ................................................................................... A-9
A.2.3.1 Shift Instructions ............................................................................................. A-9
A.2.3.2 Rotate Instructions ....................................................................................... A-10
APPENDIX B
INPUT SYNCHRONIZATION
B.1 WHY SYNCHRONIZERS ARE REQUIRED................................................................. B-1
B.2 ASYNCHRONOUS PINS.............................................................................................. B-2
APPENDIX C
INSTRUCTION SET DESCRIPTIONS
APPENDIX D
INSTRUCTION SET OPCODES AND CLOCK CYCLES
INDEX
xi