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Number systems codes and arithmetic operations
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2's complement 8-bit word Accum address bus address lines arithmetic ASCII Binary code binary form binary number branch byte 1 opcode chip select clock pulse code Mnemonic Comments column condition codes register contents of accumulator contents of memory contents of register control lines control register CPU registers data bus data register decimal number digit execution fetch-execute cycle flip-flop Flow diagram Hex code Mnemonic hexadecimal high-order immediate mode index register input input/output integrated circuit interface interrupt request interrupt service routine LDAA least significant least significant byte Load accumulator Load the accumulator location Hex code logic machine code Machine code program main program Memory location Hex microcomputer microprocessor microprocessor system monitor octal peripheral device processor program counter register pair reset result Return to Control shown in Fig signal significant byte stack pointer status flag storage subroutine subtraction unconditional jump word length zero