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Arithmetic Logic and DataHandling Instructions
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ACCB accumulator ACCX ADDR Addren address bus Address Contents Contents Addressing Formats Addressing Modes Execution affected B7 STAA Boolean Formulae branch byte of machine circuit cleared otherwise clock code Addressing Modes complement condition code register configured Contents Contents Operation contents of ACCA Contents Operation 0000 control register converter cycles data bus data lines data register decimal decoding display enable Formulae for Condition hex designation Hex Hex Mnemonics hexadecimal i/o device ICB2 index register input instruction interfacing interrupt request LDAA lndex lnput loaded logic machine code Addressing machine code Coding Machine Code hexadecimal/octal/decimal main program microcomputer microprocessor Mnemonics MOTOROLA Semiconductor Products negative Number of bytes operand Order Bytel peripheral port program counter R/W memory read-only memory relative address reset result signal significant bit stack pointer status byte stored subroutine Subtract switch closure two's complement UART voltage zero