The 8085 has six general – purpose registers to store 8-bit data; these are identified as
B, C, D, E, H and L
as shown in the figure. They can be combined as register pairs – BC, DE, and HL – to perform some 16-bit operations.
What are the different types of registers in microprocessor?
- General Purpose Registers.
- Temporary Registers: a) Temporary data register b) W and Z registers.
- Special Purpose Registers: a)Accumulator b) Flag registers c) Instruction register.
- Sixteen-bit Registers: a) ProgramCounter (PC) b) Stack Pointer (SP)
What are the various registers in the 8085 microprocessor?
The 8085 has six general-purpose registers to store 8-bit data; these are identified as
– B, C, D, E, H, and L
. These can be combined as register pairs – BC, DE, and HL, to perform some 16-bit operation. These registers are used to store or copy temporary data, by using instructions, during the execution of the program.
What are the 16-bit registers of 8085?
- Stack pointer and accumulator.
- Program counter and accumulator.
- Stack pointer and program counter.
- Accumulator, stack pointer and program counter.
What are the various types of register and its function?
There are two types of registering in the memory data register. When the data is fetched from the memory and copied to the MDR the information
is stored
in one single direction and the data is written by other CPU registers that store data in computer memory.
Which is special purpose register?
A Special Function Register (or Special Purpose Register, or simply Special Register) is
a register within a microprocessor
, which controls or monitors various aspects of the microprocessor’s function.
What are registers used for?
Registers are small amounts of high-speed memory contained within the CPU. They are used by the processor
to store small amounts of data that are needed during processing
, such as: the address of the next instruction to be executed.
What is register and examples?
The definition of a register is a book, list or record of dates, events or other important pieces of information. An example of a register is
a listing of people married in a specific church
. … An example of to register is to sign up for a class.
What are the names of the 4 segment registers?
The 8086 has four special segment registers:
cs, ds, es, and ss
. These stand for Code Seg- ment, Data Segment, Extra Segment, and Stack Segment, respectively. These registers are all 16 bits wide. They deal with selecting blocks (segments) of main memory.
What are the classifications of 8086 registers?
The registers inside the 8086 are all 16 bits. They are split up into four categories:
General Purpose, Index, Status & Control, and Segment
. The four general purpose registers are the AX, BX, CX, and DX registers.
Why program counter is 16-bit register?
The program counter acts
as a pointer to the next instruction to be executed
and always contains the 16-bit address of the memory location of next instruction. It is a 16 bit register as 8085 has 16 address lines.
Which stack is used in 8085?
Answer:
LIFO (Last In First Out) stack
is used in 8085.In this type of Stack the last stored information can be retrieved first.
What is the function of accumulator register?
An accumulator is a type of register included in a CPU. It acts as
a temporary storage location which holds an intermediate value in mathematical and logical calculations
. Intermediate results of an operation are progressively written to the accumulator, overwriting the previous value.
What is register how many types?
There are
two types
of registers. Some registers are internally in the processor while the other one is user-accessible. These two types of registers differ in their accessibility to computer architecture.
What are the functions of the four registers?
- Program counter (PC): Contains the address of an instruction to be fetched.
- Instruction register (IR): Contains the instruction most recently fetched.
- Memory address registers (MAR): Contains the address of a location in memory.
What type of program is operating system?
An operating system (OS) is
system software
that manages computer hardware, software resources, and provides common services for computer programs.
