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Data registers.
Data registers are mainly used to store information such as operands and operation results, so as to save the time required to read operands and occupy the bus and access memory.
Address change registers.
They are mainly used to store the offset of the memory cell within the segment, and they can be used to address multiple memory operands (detailed in detail in Chapter 3) to facilitate access to the memory cell in different address forms. Address change registers are not divisible into 8-bit registers. As a general-purpose register, it can also store operands and results of arithmetic logic operations.
Pointer registers.
They are mainly used to store the offsets of memory cells in the stack, and they can be used to address multiple memory operands (described in detail in Chapter 3) to facilitate access to memory cells in different address forms. Pointer registers are not divisible into 8-bit registers. As a general-purpose register, it can also store operands and results of arithmetic logic operations.
Segment registers. Segment registers are set according to the management mode of memory segmentation. The physical address of a memory cell is a combination of the value of the segment register and an offset, so that two values with fewer bits can be combined into a memory address that has access to a larger physical space.
Instruction pointer registers.
Stores the offset of the next instruction to be executed in the ** segment.
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The function of a register is to store binary**, which is a combination of triggers with a storage function. A flip-flop can store 1-bit binary **, so the register that stores n-bit binary ** needs to be composed of n flip-flops. [1]
According to the different functions, registers can be divided into two categories: basic registers and shift registers. The base registers can only feed data in parallel and output in parallel. The data in the shift register can be shifted to the right or left in turn under the action of the shift pulse, and the data can be both parallel input and output, serial input and serial output, and can also be parallel input and serial output, or serial input and parallel output, which is very flexible and has a wide range of uses.
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The intercity classification can be divided into CPU storage. Data Storage.
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Hello dear, registers can be divided into parallel registers and shift registers according to different functions. Parallel registers are parallel input and output registers. In addition to the function of registers, the stored digits can also be shifted under the action of clock pulses.
According to the direction of digital shift, it is divided into left shift register and right shift register. The left-shift register refers to the digital delivery of the low-level operation register to the high-level register under the action of the clock pulse, as the secondary output of the high-level register; The right-shift register refers to the digital transmission of the high-level register to the low-level register under the action of the clock pulse, which is used as the secondary state transmission and cracking of the low-level register.
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3. Floating-point register: used to store floating-point numbers.
4. Constant register: used to hold read-only values.
5. Vector register: used to store the data obtained by the vector processor running the simd instruction.
6. Special purpose registers: store data inside the CPU, such as program counters, stack registers, and status registers.
7. Instruction Register: Stores the instructions that are being run.
Note: Simd stands for Single Instruction Multiple Data, which can copy multiple operands and pack them into a set of instructions in large registers.
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Answer] Guess the chain chain: Dedicated registers are divided into 5 categories:
Data Registers, Ground Call Address Registers, Constant Registers, Floating-Point Registers, Spike Sun Vector Registers.
latch. Difference from registers:
1.The registers are synchronous clock control, while the latches are potentiometric signal control. The latch is generally determined by level. >>>More
There are registers in the CPU, such as the accumulator in the ALU (Computing Unit). When the CPU operates on these registers, it also needs to have an address in order to distinguish between different registers. This address is the address code you are talking about.
Registers are important data storage resources inside the CPU, and they are one of the hardware resources that can be directly used by assemblers. Since registers can be accessed faster than memory, it is important to make the most of the registers' storage capabilities when writing programs in assembly language. Registers are generally used to store the intermediate results of a program, and to quickly provide operands for subsequent instructions, thus avoiding the need to store intermediate results in memory and then read them in memory. >>>More
The memory that the CPU can directly access is the internal memory. >>>More
Difference Between Latch and Register:
1.The registers are synchronous clock control, while the latches are potentiometric signal control. Latches are generally controlled by level signals and are level-sensitive. Registers are generally controlled by clock signals and are edge-sensitive. >>>More