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What is microprogram sequencing?
the basic component of a microprogram control unit are the control memory and the circuit that select the next address . the address selection part is called a microprogram sequencer .the purpose of the microprogram sequencer is to present an address to the control memory so that a micro instruction may be read and executed .
What do you mean by microprogram sequencing?
To get the next micro instruction to be executed.
Is it possible to design a hardwired control unit associated with microprogram?
Yes, it is possible to design a hardwired control unit that works in conjunction with a microprogram. In this configuration, the hardwired control unit generates control signals based on the microprogram's instructions, allowing for more complex operations than a purely hardwired approach. This hybrid design can leverage the speed of hardwired logic while still using microprogramming to manage complex instruction sets or sequences. However, it can also increase design complexity and may require careful integration to ensure efficient operation.
Difference between microprocessor and macroprocessor?
· Difference Between :- § micro processor is a integrated circuit on a chip while macro processor is a program, § macro processor is a software entity while micro processor is a hardware entity. § Macro processor reads all files and scans for certain keywords while microprocessor performs arithmetic and logic operations.
What is a microprogramming?
A microprogram is a program that is consisted of micro code, which is the lowest level language possible on a computer. Microcode is even more low level than machine code and acts a platform for machine code to run on top of, directing the physical operations of the processor by itself.
What does it mean to say that a computer understands a program?
The only part of a program a computer understands is each instruction as it is presented to the instruction decoder. It understands the instruction by an intricately designed logic circuit and/or microprogram configured by a human computer hardware engineer. This engineer had to fully understand the instruction set of the machine to teach it to understand the instructions one at a time at runtime.
What is a gameboy emulator?
A SNES emulator, emulates(The microprogram-assisted macroprogram which allows a computer to run programs written for another computer.) It basically pretends to be a Super Nintendo and plays ROMS which are games for the SNES emulator.
Is it possible to design microprocessor without microprogram?
Yes. Most early microprocessor in the 70's were NOT microcoded. Microcoding takes a lot of real estate on the silicon and the trade-off was not worth it until the chip densities increased in the 80's. I worked on two microcoded microprocessor 1972-73 for American MicroSystems Inc (AMI), called the 7200 and the 7300. Both worked quite well but were large chips. Had it not been for AMI making the decision that "there is no future in microprocessors" both the 7200 and 7300 would have succeeded. Both were well documented from talks at trade shows.
Why CISC chips are relatively slow per instruction?
Short answer: CISC instructions consist of several RISC instructions. That makes CISC slower (per instruction) compared to RISC.Compared to other architectures, CISC processors have relatively powerful instructions, which used run so called microprograms. For each instruction, the corresponding microprogram has to be fetched and executed, which is considerably slower than just using 'real' hardware instructions (compare RISC). According to wikipedia, microprogrammed processors are no longer common. Instead, a special unit resolves CISC instructions to RISC instructions.
When to use me and you or you and i?
If you would use 'I' in the singular, then use 'you and I'. If you would use 'me', then use 'you and me'.
What is control unit function?
It also takes help from the arithmetic logic unit , whenever required. The control unit is very important for computers functioning . The control unit has outputs which take charge of the activities of the entire device. Some regard the control unit to be an FSM or finite state machine which is used for hardware and software applications.Control Unit and Microprogram :There was a time when the manufacturing of control unitswas a difficult process, especially in designing it. But today the scenario has changed. A control unit is executed in the form of microprogram which remain in control stores. There is a micro sequencer which chooses the words and certain portions of those words which directly manage the various computer parts. These parts are arithmetic and logic units, buses, instruction registers, registers and input/output. Today the latest computers may possess subsidiary controllers for every subsystem, which would be supervised by the main control unit .Functions of Control Unit:A control unit can be described as a sort of circuitry that supervises and controls the path of information that runs over the processor and organizes the various activities of those units that lie inside it.• It carries out many tasks such as decoding, fetching, handling the execution and finally storing the results.• It controls the execution of instructions in a sequential order.• It guides the flow of data through the different parts of the computer.• It interprets the instructions.• It regulates the time controls of the processor.• It sends and receives control signals from various peripheral devices.A control unit is a major computer part which helps in the functioning of the central processing unit and in turn runs the whole computer.
What is control function?
It also takes help from the arithmetic logic unit , whenever required. The control unit is very important for computers functioning . The control unit has outputs which take charge of the activities of the entire device. Some regard the control unit to be an FSM or finite state machine which is used for hardware and software applications.Control Unit and Microprogram :There was a time when the manufacturing of control unitswas a difficult process, especially in designing it. But today the scenario has changed. A control unit is executed in the form of microprogram which remain in control stores. There is a micro sequencer which chooses the words and certain portions of those words which directly manage the various computer parts. These parts are arithmetic and logic units, buses, instruction registers, registers and input/output. Today the latest computers may possess subsidiary controllers for every subsystem, which would be supervised by the main control unit .Functions of Control Unit:A control unit can be described as a sort of circuitry that supervises and controls the path of information that runs over the processor and organizes the various activities of those units that lie inside it.• It carries out many tasks such as decoding, fetching, handling the execution and finally storing the results.• It controls the execution of instructions in a sequential order.• It guides the flow of data through the different parts of the computer.• It interprets the instructions.• It regulates the time controls of the processor.• It sends and receives control signals from various peripheral devices.A control unit is a major computer part which helps in the functioning of the central processing unit and in turn runs the whole computer.
