UNIT IV - 8051 MICROCONTROLLER INTRODUCTION
Microcontroller based system design is rather simple and cost effective The Instruction set of microprocessor is complex with large number of instructions. The instruction set of a Microcontroller is very simple with less number of instructions. For, ex: PIC microcontrollers have only 35 instructions. A microprocessor has zero status flag.
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Assembly language programming: 8085 program to add two …
oms.bdu.ac.in8085 program to subtract two 8-bit numbers with or without borrow: Problem – Write a program to subtract two 8-bit numbers with or without borrow where first number is at 2500 memory address and second number is at 2501 memory address and store the result into 2502 and borrow into 2503 memory address. Example – Algorithm – 1.
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oms.bdu.ac.in1.2. RISC AND CISC CPU ARCHITECTURES Microcontrollers with small instruction set are called reduced instruction set computer (RISC) machines and those with complex instruction set are called complex instruction set computer (CISC). Intel 8051 is an example of CISC machine whereas microchip PIC 18F87X is an example of
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