.4 Consider a microprocessor that has a block I/O transfer instruction such as that found on the 28000. Following its first execution, such an instruction takes five clock cycles to re-execute. However, if we employ a nonblocking I/O instruction, it takes a total of 20 clock cycles for fetching and execution. Calculate the increase in speed with the block I/O instruction when transferring blocks of 128 bytes.

.4 Consider a microprocessor that has a block I/O transfer instruction such as that found on the 28000. Following its first execution, such an instruction takes five clock cycles to re-execute. However, if we employ a nonblocking I/O instruction, it takes a total of 20 clock cycles for fetching and execution. Calculate the increase in speed with the block I/O instruction when transferring blocks of 128 bytes.

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Description: .4 Consider a microprocessor that has a block I/O transfer instruction such as that foundon the 28000. Following its first execution, such an instruction takes five clock cyclesto re-execute. However, if we employ a nonblocking I/O instruction, it t

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.4 Consider a microprocessor that has a block I/O transfer instruction such as that found
on the 28000. Following its first execution, such an instruction takes five clock cycles
to re-execute. However, if we employ a nonblocking I/O instruction, it takes a total of
20 clock cycles for fetching and execution. Calculate the increase in speed with the
block I/O instruction when transferring blocks of 128 bytes.

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