Opcodes of 8085 Microprocessor

As we know that the 8085 microprocessor is an 8-bit microprocessor. So, a total of 256 instruction codes can be generated using 8-bit combinations. But out of 256 instruction codes, only 246 instruction codes are defined by INTEL Corporation for 8085 microprocessor. Each defined instruction code performs a unique task. These instruction codes are called … Read more

Instruction Word Size: 8085 Microprocessor

The total memory location required to feed the instruction in memory is called as instruction word size. The memory location of 8085 microprocessor can accommodate 8-bits of data. To store 16-bits data, they are stored in two consecutive memory locations (i.e. 2 Bytes). According to the instruction word size in 8085 microprocessor, there are three types of … Read more

Addressing Modes in Instructions: 8085 Microprocessor

In this article, we will discuss addressing modes of 8085 microprocessor. To perform any operation, we have to give the corresponding instructions to the microprocessor. In each instruction, a programmer has to specify three things: 1. Operation to be performed. 2. Address of source of data. 3. Address of destination of the result. The method … Read more

8 Bit Logical Rotational Instructions | 8085 Microprocessor

These instructions execute on the basis of the content of accumulator. When these instructions execute, the content of accumulator will shift by 1 bit either left or right as per the instruction. 1. RLC  no operand Instruction word size  ⇒   1 Byte Operation ⇒ When this instruction will execute the content of accumulator will shift (or rotate) … Read more

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