What are general purpose regiters?

General-purpose registers (GPRs) can store both data and addresses, i.e., they are combined data/address registers; in some architectures, the register file is unified so that the GPRs can store floating-point numbers as well. ... Floating-point registers (FPRs) store floating point numbers in many architectures.

1. Which is type of general purpose register?
2. What is a special purpose register?
3. What are general purpose register in 8085?
4. What are general purpose registers x86?
5. Are accumulators general purpose registers?
6. What is the difference between general purpose and special purpose registers?
7. What are the general purpose registers in 8051?
8. How many general purpose registers are there in 8051 microprocessor?
9. How many special purpose registers are there in 8085?
10. What are the special purpose registers in 8086?
11. What are the names of the general purpose registers in an Intel x86 CPU?
12. What are the 32-bit general purpose registers?
13. How many general purpose registers are in arm?
14. Which one of these registers is a general-purpose register?
15. What are the general-purpose registers in assembly language?
16. Which general-purpose register can be used as memory pointer?

Which is type of general purpose register?

General purpose registers are used to store temporary data within the microprocessor. There are 8 general purpose registers in 8086 microprocessor. ... CX – This is the counter register. It is of 16 bits and is divided into two 8-bit registers CH and CL to also perform 8-bit instructions.

What is a special purpose register?

A special purpose register is one that has a specific control or data handling task to carry out. There are a number of special purpose registers within the CPU. The diagram above shows that the CPU contains a number of registers in order to process data and to follow program instructions.

What are general purpose register in 8085?

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 general purpose registers x86?

As the title says, general register are the one we use most of the time Most of the instructions perform on these registers. They all can be broken down into 16 and 8 bit registers. EAX,AX,AH,AL : Called the Accumulator register. It is used for I/O port access, arithmetic, interrupt calls, etc...

Are accumulators general purpose registers?

The general purpose registers are used to store temporary data in the time of different operations in microprocessor. 8086 has eight general purpose registers. This is the accumulator. ... AX generally used for arithmetic or logical instructions, but it is not mandatory in 8086.

What is the difference between general purpose and special purpose registers?

General purpose – These do not have side effects, can be used by most instructions. One can do arithmetic with them, use them for memory addresses, and so on. Special purpose – Registers which do not have side effects, but can only be used for certain purposes and only by certain instructions.

What are the general purpose registers in 8051?

The most widely used registers of the 8051 are A (accumulator), B, R0-R7, DPTR (data pointer), and PC (program counter). All these registers are of 8-bits, except DPTR and PC.

How many general purpose registers are there in 8051 microprocessor?

The 8051 contains 34 general-purpose, or working, registers. Two of these, registers A and B, comprise the mathematical core of the 8051 central processing unit (CPU). The other 32 are arranged as part of internal RAM in four banks, BO-B3, of eight registers each, named RO to R7.

How many special purpose registers are there in 8085?

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.

What are the special purpose registers in 8086?

There are two special purpose registers on the 8086, i.e. the instruction pointer (ip) and the flag register. The ip is sometimes referred to as the pc (program counter). These registers cannot be accessed directly, rather, they are modified by the cpu during execution.

What are the names of the general purpose registers in an Intel x86 CPU?

The main registers were called AX, BX,CX, DX, a natural eXtension of the 8080's A through D, each of these could also be referenced as two 8-bit registers which were called AL, AH, BL, BH, etc. The 8086 index register, also 16-bit, were called SI, DI, BP and SP after their primary functions.

What are the 32-bit general purpose registers?

The EAX, EDX, ECX, EBX, EBP, EDI, and ESI registers are 32-bit general-purpose registers, used for temporary data storage and memory access. The AX, DX, CX, BX, BP, DI, and SI registers are 16-bit equivalents of the above, they represent the low-order 16 bits of 32-bit registers.

How many general purpose registers are in arm?

According to the ARM Reference Manual, there are 30 general-purpose 32-bit registers, with the exception of ARMv6-M and ARMv7-M based processors. The first 16 registers are accessible in user-level mode, the additional registers are available in privileged software execution (with the exception of ARMv6-M and ARMv7-M).

Which one of these registers is a general-purpose register?

The general purpose registers are divided into two categories. Four registers, AX, BX, CX, and DX, are classified as data registers. ... This includes the following four registers: SP, BP, SI, and DI, The SP register, the stack pointer, is reserved for usage as a pointer to the top of the stack.

What are the general-purpose registers in assembly language?

1. General-Purpose Registers. The EAX, EDX, ECX, EBX, EBP, EDI, and ESI registers are 32-bit general-purpose registers, used for temporary data storage and memory access. The AX, DX, CX, BX, BP, DI, and SI registers are 16-bit equivalents of the above, they represent the low-order 16 bits of 32-bit registers.

Which general-purpose register can be used as memory pointer?

Stack Pointer (SP): It is a 16-bit special function register used as memory pointer. A stack is nothing but a portion of RAM. In the stack, the contents of only those registers are saved, which are needed in the later part of the program. The stack pointer (SP) controls the addressing of the stack.