NEC PD75402A User Manual
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6.5
MACHINE CYCLES BEFORE INTERRUPT SERVICING .............................................................................. 135
6.6
INTERRUPT APPLICATIONS ........................................................................................................................ 137
CHAPTER 7. STANDBY FUNCTION . ...................................................................................................... 141
7.1
STANDBY MODE SETTING AND OPERATION STATES .......................................................................... 142
7.2
STANDBY MODE RESET .............................................................................................................................. 143
7.3
OPERATION AFTER STANDBY MODE RESET ........................................................................................... 145
7.4
STANDBY MODE APPLICATION ................................................................................................................. 145
CHAPTER 8. RESET FUNCTION ............................................................................................................... 146
CHAPTER 9. INSTRUCTION SET ............................................................................................................. 148
9.1
SPECIAL INSTRUCTION ............................................................................................................................... 149
9.1.1
Bit Operation Instructions ............................................................................................................ 149
9.1.2
Stack Instructions .......................................................................................................................... 149
9.1.3
Base Correction Instructions ........................................................................................................ 150
9.1.4
Skip Instruction and Number of Machine Cycles Required by Skip ...................................... 150
9.2
INSTRUCTION SET AND ITS OPERATION ................................................................................................. 151
9.3
OPERATION CODE OF EACH INSTRUCTION ............................................................................................. 156
9.4
INSTRUCTION FUNCTIONS AND APPLICATION ...................................................................................... 159
9.4.1
Move Instructions .......................................................................................................................... 159
9.4.2
Table Reference Instructions ....................................................................................................... 162
9.4.3
Arithmetic and Logic Instructions ............................................................................................... 163
9.4.4
Accumulator Operation Instructions .......................................................................................... 165
9.4.5
Increment/Decrement Instructions .............................................................................................. 166
9.4.6
Compare Instructions ................................................................................................................... 167
9.4.7
Carry Flag Operation Instructions ............................................................................................... 168
9.4.8
Bit Manipulation Instructions ...................................................................................................... 169
9.4.9
Branch Instructions ....................................................................................................................... 171
9.4.10
Subroutine Stack Control Instructions ....................................................................................... 172
9.4.11
Interrupt Control Instructions ...................................................................................................... 174
9.4.12
Input/Output Instructions ............................................................................................................. 175
9.4.13
CPU Control Instructions .............................................................................................................. 176
APPENDIX A. TABLE OF INSTRUCTION USABLE WITH EVAKIT-75X ONLY .............................. 177
APPENDIX B. DEVELOPMENT TOOLS ................................................................................................... 179
APPENDIX C. MASK ROM ORDERING PROCEDURE ......................................................................... 182
APPENDIX D. INSTRUCTION INDEX (ALPHABETIC ORDER) ............................................................ 183
APPENDIX E. HARDWARE INDEX (ALPHABETIC ORDER) ................................................................ 184