Question

In: Computer Science

The CPU within a computer system employs a split cache system in which the separate instruction...

The CPU within a computer system employs a split cache system in which the separate instruction and data caches are fully associative. A program runs on this system and writes to a memory mapped register that triggers an I/O device to begin writing a 32-bit value directly into memory at address 0x04CA0000 using DMA and bypassing the cache. The value first written by the device is 0x00001234 and every second thereafter the I/O device writes a new value (= old value + 1) to the same location. Assume that address 0x04CA0000 and the memory mapped device register are the only two data items referenced in memory.

After triggering the I/O device to start writing, the program enters a loop in which it reads the contents of the word at address 0x04CA0000. The loop is repeated once every 5 seconds thereafter. If the first value read within the loop is 0x00001234, what value would be read 35 seconds later?

Solutions

Expert Solution

after 35 seconds the instructios were calclulated like

(0*00001234)*35/10

DPLL(F){

if F is empty

Report satisfiable and halt

if F is contains the empty claus A

return

else choose a literal


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