arenaiorew.blogg.se - Complete microprocessor logicworks 5

#Complete microprocessor logicworks 5 simulator#

The program counter - a four-bit register storing the location of the next instruction to be executed.The arithmetic logic unit (ALU) - takes two four-bit inputs from the data bus and the accumulator and performs mathematical and logical operations on the data.The instruction register - stores the current instruction being executed.

The address register - stores an address which can be connected to the address bus in place of the program counter.

The accumulator - a four-bit register used for temporarily storing data allowing it to be used in mathematical operations or allowing it to be moved from one location to another.

In this processor, there are two read/write memory locations and fourteen read-only locations. Because the address bus is four-bit, only 16 memory locations can be addressed. An address bus selects the memory location to be read or written to.

The memory - stores data in four-bit registers.

We began with an overview of digital logic and, step-by-step throughout the semester, assembled the components of a basic four-bit microprocessor.

#Complete microprocessor logicworks 5 simulator#

We used a digital circuit simulator called LogicWorks. I took the opportunity to carry the project a bit further than the requirements for my grade to satisfy my curiosity. A digital design class allowed me to fill in the gap in the form of a project which spanned the length of the semester. I knew my way around a breadboard, and a Perl script, but didn’t fully understand how the two connected. Until recently, there was a gap in my knowledge between the transistor and the algorithm. Most programming languages are very well insulated from the hardware, and don’t require knowing the structure of a computer processor. I also had an interest in electronic circuits. I became fascinated with languages, algorithms and data structures. My interest in computers began with programming.