Contents
How is H is stored in a register?
The 8-bit data is stored in the destination register or memory. The contents of register L are stored in the memory location specified by the 16-bit address in the operand and the contents of H register are stored into the next memory location by incrementing the operand.
What is the purpose of HL register pair?
The H-L pair is used to act as a memory pointer. Program Counter (PC): It is a 16-bit special purpose register. It is used to hold the address of memory of the next instruction to be executed. It keeps the track of the instruction in a program while they are being executed.
What is H and L register?
Registers B, C, D, E, H, and L are general purpose registers in 8085 Microprocessor. All these GPRS are 8-bits wide. They are less important than the accumulator. They are used to store data temporarily during the execution of the program. For example, there is no instruction to add the contents of Band E registers.
How will 8-bit data get stored in the HL pair?
As HL pair has to be stored, so it has to be stored in two consecutive locations starting at the address a16. We know that H and L are 8-bit registers. So their contents will be stored in two consecutive memory locations as each memory location can hold 8-bits of data. It occupies 3-Bytes in the memory.
What is H and L in 8086?
the same is for other 3 registers, “H” is for high and “L” is for low part. because registers are located inside the cpu, they are much faster than memory. accessing a memory location requires the use of a system bus, so it takes much longer. accessing data in a register usually takes no time.
What will be the other name of HL pair register?
2) General purpose register- (D) H-L pair is an exceptional pair which is used as a memory pointer to locate an address L X H 2000H. H recognize H-L pair of general purpose register.
What is the difference between 8086 and 8088?
Though the architecture and instruction set of both 8086 and 8088 processors are same, still there are differences between them….Differences between 8086 and 8088 microprocessors.
| S. No. | 8086 microprocessor | 8088 microprocessor |
|---|---|---|
| 6 | It can read or write either 8-bit or 16-bit word at the same time. | It can read only 8-bit word at the same time. |
How to exchange content of HL register pair?
POP H: pop the upper two bytes from top of stack and place it in HL register pair and increment SP by 2. POP D: pop the upper two bytes from top of stack and place it in DE register pair and increment SP by 2. HLT: stops executing the program and halts any further execution.
What is HL pair in 8085 microprocessor?
HL is a register pair used to store 16 bit of data in 8085 microprocessor. Home Science Math and Arithmetic History Literature and Language Technology
How big is a HL and HL register?
H is a 1 byte register, or 8 bits, while HL is a 3 byte register pair, or 24 bits. Now that we know about registers, it’s time we learn our first instruction! What does this code do? It puts the value of source into the given destination. We can use registers as arguments for this instruction:
Where are the 8-bit contents of register H stored?
The next 8-bit contents of the register H are stored into the subsequent memory location. The contents of register pair H-L are exchanged with the contents of the register-pair D-E. The information stored in register H is exchanged with that of D; similarly, that in register L is exchanged with the contents of the register E.