.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.

Name: .4 Consider a microprocessor that has a block I/O transfer instructio
Uploaded: 2024-03-20T06:51:23.000Z
Channel: Bartleby
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

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

A computer with a 32-bit 3.5 gigahertz scalar non- pipelined CPU needs to invert the colors of a 150 KB bitmap image file located in the RAM. To do this, each bit of the image must be complemented (Os are converted to 1s and vice-versa). Assume every instruction undergoes the following stages and each stage uses one CPU clock cycle: • Fetch • Decode • Read from memory • Execute • Write to memory Instructions: For this assignment, you must calculate how much time the computer will need to invert the image with a single-core and a dual core CPU. Show and explain your calculations and assumptions in a short paper and answer the following questions: • Will there be any parallel slowdown? Why or why not? Length: 2-3 page explanatory paper
dont post unnecessary copied content posting multiple times
A microprocessor has an increment memory direct instruction, which adds 1 to the value in a memory location. The instruction has five stages: fetch opcode(four bus clock cycles),fetch operand address (three cycles), fetch operand (three cycles) add 1 to operand (three cycles), and store operand (three cycles). a. By what amount (in percent) will the duration of the instruction increase if we have to insert two bus wait states in each memory read and memory write operation? b. repeat assuming that the increment operation takes 13 cycles instead of 3 cycles
Registers in RISC-V are 64-bit. For the sake of simplicity, consider the following instructions operating on 32-bit registers. Assume that registers x5 and x6 hold the values 0xBBBBBBBB and 0x00000000, respectively. What is the value in x6 for the followingslli x6, x5, 6 Using the result from the part above, what is the value in x6 for the following instruction. srli x6, x6, 6
Assume that A and B are arrays of 64-bit integers, and C and i are 64-bit integers. Assume that all data values and their addresses are kept in memory (at addresses 1000, 3000, 5000, and 7000 for A, B, C, and i, respectively) except when they are operated on. Assume that values in registers are lost between iterations of the loop.
I have a little bit problem with my late quiz for computer architecture, I get the answer from my lecturer but I still don't feel fully understand, can I ask for some help: In a computer system, the memory has 32 blocks and the cache has 8 blocks. Assume there is only one word per block with 4 bytes in one word. The reference sequence in terms of word location is 0, 2, 4, 10, 5, 12, 8, 18, 13. If the cache is direct-mapped, how many misses do we have if the cache is initially empty? Can you give the hit or miss for each reference?
H.W.: Consider a hypothetical machine with two steps instruction cycle: fetch cycle and execute cycle. The characteristics of the machine is given in Figure 8 with the following explanation: The processor contains a single data register, called an accumulator (AC). • Both instructions and data are 8 bits long. • The memory is organized using 8-bit words. • The instruction format provides 2 bits for the opcode, and up to 26 = 64 words of memory can be directly addressed. Opcode Address (a) Instruction format Magnitude (b) Integer format Program counter (PC)= Address of instruction Instruction register (IR)- Instruction being executed Accumulator (AC) Temporary storage (c) Internal CPU registers -Load AC from memory Store AC to memory - Add to AC from memory (d) Partial list of opcodes Figure 8 Characteristics of a Hypothetical Machine Figure 9 illustrates a partial program execution, showing the relevant portions of memory and processor registers after the first instruction, 64H has…
Consider a CPU which operates with 20Mbyte/s operating speed. The CPU is operating on program control mode of I/O and it has to transfer data of 20 bytes from it. The data is transferred byte wise. Size of the Status register is 2 bytes. What is the total time needed to perform the data transfer?