Guidelines

What is LXI H?

What is LXI H?

We can use this instruction to load data from memory location using the memory address, which is stored in the register pair rp. For an example, if the instruction is LXI H, FE50. It means that the FE50 is loaded into the HL register pair.

What is LHLD?

In 8085 Instruction set LHLD is a mnemonic that stands for Load HL pair using Direct addressing from memory location whose 16-bit address is denoted as a16. So the previous content of HL register pair will get updated with the new 16-bits value.

What is difference between LDA and LDAX instruction?

LDA: Load accumulator. This instruction copies the data from a given 16 bit address to the accumulator. The contents of the memory location are not altered. LDAX: Load accumulator indirect.

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What is HLT microprocessor?

In the x86 computer architecture, HLT (halt) is an assembly language instruction which halts the central processing unit (CPU) until the next external interrupt is fired. Most operating systems execute a HLT instruction when there is no immediate work to be done, putting the processor into an idle state.

What is the output of LXI H 2050H?

‘) LXI H,2050H L=50H H=20H LXI instruction takes 3 bytes of memory and 10 clock periods.

What is uses of HLT in 8085 program?

In 8085 Instruction set, HLT is the mnemonic which stands for ‘Halt the microprocessor’ instruction. It is having a size of 1-Byte instruction. Using these particular instructions, as 8085 enters into the halt state, so we can put the8085 from further processing of next instructions.

What is HLT instruction in 8085 Processor Mcq?

PC stores the 16-bit memory address of the next instruction to be fetched. SP can be used to temporarily store the 16 – bit memory address as well as data. So PC and SP are 16-bit registers. Select interrupt mask.

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What are the difference between 8085 and 8086 microprocessor?

The 8086 is enhanced version of 8085 microprocessor. It is 16-bit processor….Differences between 8085 and 8086 microprocessor.

Property 8085 Microprocessor 8086 Microprocessor
Data Bus Size 8-Bit 16-Bit
Address Bus Size 16-bit 20-bit
Clock Speed 3MHz Varies in range 5.8 – 10 MHz
Duty Cycle for clock 50\% 33\%