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The Microprocessor as a Microcomputer
The Intel 8080 Microprocessor
ArchitectureInstructionsRoutinesFloppy Disk System
8 other sections not shown
accumulator added additional allows applications architecture arithmetic assembler basic bits branch byte carry character chip circuit clear clock complement complete condition contains contents converter cycle DECODER decrement delay devices digit direct eight eight-bit equal example exclusive execution extended external flag four functions gate immediate increment index register input input/output instruction instruction set interface interrupt jump load logic LOOP lower machine memory memory location method microprocessor mode move multiply operand operations output performed pointer port processing processor produce program counter relative reset result routine scratch-pad sequence shift shown in Fig single sixteen-bit speed stack status stored subroutine Subtract Table tion transfer unit upper zero