A coprocessor is a specialized computer chip that works alongside the main processor to handle specific tasks more efficiently. It offloads certain computations from the main processor, enabling faster processing speeds and better overall system performance. Coprocessors are often used for tasks like floating-point arithmetic, encryption, and graphics processing.
The 8087 is a numeric coprocessor that enhances the computational power of a system by offloading complex floating-point calculations from the main CPU. This improves the performance of mathematical operations, especially in scientific and engineering applications.
The types of mechanical work include static work, dynamic work, and intensive work. Static work refers to work done without motion, dynamic work involves movement, and intensive work focuses on the internal energy changes within a system.
Input work is the work done on a machine, while output work is the work done by the machine. Efficiency of a simple machine is calculated as the ratio of output work to input work. The efficiency of a simple machine is high when the output work is close to the input work, indicating that the machine is converting most of the input work into useful output work.
The formula that relates work and power is: Power = Work / Time. Power is the rate at which work is done, which is the amount of work done divided by the time it takes to do that work.
the work a machine does is the work output what it takes to do the work is the work input
What is the standard IRQ setting for a math coprocessor?
Modern computers typically do not use a coprocessor. Floating-point capabilities are built into the CPU.
the 8087 is a numeric data processor(NDP) it is basically made to work with 8086/8088 processors.it cannot fetch its instruction by own so its buses(address and data buses)are simply connected to the respective buses of the processor.its instruction are recognized by the word F because each and every instruction of this coprocessor starts with the word F.this is how the min processor distinguishes between its own and the coprocessor instructions.(eg):-FADD,FSUB,etc.this coprocessor has 8-registers eacch capable of storing 80-bit temporary real numbers. the BUSY pin of the coprocessor is connected to the main processor's TEST pin.this TEST pin is active low in nature.this is because the speed of operation of the coprocessor and the main processor is different. the need of this coprocessor is because the calculation speed of maths operations containing floating real numbers is very fast than the processors like 8086/8088.during the execution of the program if the processor encounters the instruction starting with F word(11011)then it simply gives control to the 8087.initially the coprocessor is initialized by loading it with the control word which gives the idea to the 8087 that which exceptions are to be ignored.usually after the calculations the status word of the coprocessor is loaded to see which errors hve occurred.
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486SX
No. An 80487 would have been a math coprocessor for an 80486 general-purpose microprocessor...just like the 8087 was the math coprocessor for the 8086 and 8088, the 80287 for the 80286, and the 80387 was for the 80386. The 80486 was the first Intel processor to contain an on-chip math coprocessor, so there wouldn't have been an 80487 because it wasn't necessary.
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A coprocessor provides auxiliary functions or features that the main processor does not have. These might include floating point support or hardware encryption. A coprocessor is generally not usable without its main processor, whereas a processor may function in a crippled or less powerful form without a coprocessor. An example of a processor and a coprocessor pair would be the 80386 and the 80387.
The 8087 Math CoProcessor can work with two data formats: temporary real and packed decimal. Each data instruction, whether real or decimal, can be up to 80 bits long.
Of course! People were doing real arithmetic long before the first computer!
Robert L. Hummel has written: 'PC magazine programmer's technical reference, the processor and coprocessor' -- subject(s): Microprocessors
It contains a 32 bit CPU, a floating-point math coprocessor, unified instruction and data cache memory and memory management unit in a single IC.