In 8085 Instruction set, RNZ is a mnemonic, which stands for “Return if Not Zero”. This instruction is used to return to the main program, only if the Z flag value is 0. If Z flag value is 1, program flow continues in the subroutine sequentially. It is a 1-Byte ... Read More

In 8085 Instruction set, RP is a mnemonic, which stands for “Return if Positive”. This instruction is used to return to the main program, only if S flag value is 0. If S flag value is 1, program flow continues in the subroutine sequentially. It is a 1-Byte instruction.Mnemonics, OperandOpcode(in ... Read More

In this program, we will see how to move blocks of data from one place to another.Problem StatementWrite 8085 Assembly language program to move a data block. The blocks are assumed to be overlapping. The block size is given, the block is starting from Xand we have to move it ... Read More

Using mnemonics without any alteration in the content, data can be transferred in three different cases – From one register to another registerFrom the memory to the register andFrom the register to the memoryThese can be guided by addressing modes. Addressing modes in 8085 can be classified into 5 groups −Immediate ... Read More

In 8085 Instruction set, OUT is a mnemonic that stands for OUTput Accumulator contents to an output port whose8-bit address is indicated in the instruction as a8. It occupies 2 Bytes in the memory. First Byte specifies the opcode, and the next Byte provides the 8-bit port address. Mnemonics, OperandOpcode(in HEX)BytesOUT ... Read More

The Motorola M6800 is 40pin DIP IC. It is an 8-bit Microprocessor. It was introduced in 1974 by Motorola. It was designed nearly at the same time when the 8080 was introduced. Like 8080, it also had 16-bit address bus to handle 64KB of data, and 8-bit data bus to ... Read More

We have seen the Internal structure and registers of Motorola M6800 Microprocessor. In this section we will see the addressing modes of M6800.There are six addressing modes in M6800 MPU. These modes are −Immediate Addressing ModeImplied Addressing ModeDirect Addressing ModeExtended Addressing ModeIndexed Addressing ModeRelative Addressing ModeNow Let us see some ... Read More

To create pulse effect with CSS, you can try to run the following codeExampleLive Demo                    .animated {             background-image: url(/css/images/logo.png);             background-repeat: no-repeat;             background-position: ... Read More

In Intel 8085 microprocessor I/O and memory operation are differentiated by IO/m` status signal.IO/M` stands for ‘input-output/memory`’. When IO/M` is logic 0, it means that the address sent out by the processor is for addressing a memory location. When IO/M` is logic 1, it means that the address sent out ... Read More

It has eight addressable 8-bit registers: A, B, C, D, E, H, L, F, and two 16-bit registers PC and SP. These registers can be classified as −General Purpose RegistersTemporary Registers: a) Temporary data register b) W and Z registersSpecial Purpose Registers: a)Accumulator b) Flag registers c) Instruction registerSixteen-bit Registers: ... Read More