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Cache Memory
Caching is a technology based on the memory subsystem of any computer. The majoraim of a cache is to accelerate the computer while keeping the cost of the computer low. Caching let to do computer tasks more quickly.
Cache technology is the utilities of a faster but smaller memory type to accelerate a slower but larger memory type.
Cache is small high speed memory generally Static RAM that have the most recently accessed pieces of the time it takes to an instruction (or piece of data) into the processor is very long when compared to thetime to execute the instruction.
When by using a cache, we might check the cache to see if the item is in the cache. If it is, that is known a cache hit. If not, it is known a cache miss and the computer might wait for a round trip from the larger and slower memory area.
A cache has some maximum size that is very small then larger storage area.
Cache memory helps by decreasing the time it takes to move information to processor & from the processor. Cache memory permits small portions of major memory to be accessed 3 to 4 times faster than DRAM It applies "Locality of Reference." At any time the processor will be accessing the memory in localized or small region of memory. The cache loads this region byallowing the processor to access the memory region faster.
Register Organization of 8086 8086 has a great set of registers containing special purpose and general purpose registers. All the 8086 resisters are 16-bit registers.
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Assembly Language: Inside the 8085, instructions are really stored like binary numbers, not a very good manner to look at them and very difficult to decipher. An assembler is
write a program assembly language for adding two 3*3 matrix
DMA Hardware (8237 DMAC) : 1)Processor contain HOLD/HOLD Acknowledge lines to interact with 8237 o DMAC can achieve control of ISA bus by asserting HOLD o P
BINARY TO GRAY CONVERSION
Using the following table as a guide, write a program that asks the user to enter an integer test score between 0 and 100. The program should display the appropriate letter grade.
CBW: Convert Signed Byte to Word: This instruction converts a signed byte to a signed word. In other terms, it copies the sign bit of a byte to be converted to all of the bits in
how o create the flow chart for scan ROW4, Column 1 and 3.tq
Format of Control Register The format for the control register is given in Figure. Bit 0 of this register might be one before data may be output and bit two might be one
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