moonlit

I'm fairly new to java and was assigned a project to work on. It's regarding pipelining vs. non-pipelining. Here's my requirements: Program must show execution times and CPI consisting of a form with 5 textfields to allow user to enter time for instruction fetch, instruction decode, execution, memory, and write back. Another textfield should be created for the total number of instructions. Captions must be used to display execution times and CPI for both pipelined and non-pipelined. Also, the program need to have a calculate and an exit button. Can someone help me with some of this? Maybe some rough code...thanks!

Can someone please help me figure out what this assembly program does? .ORIG x3100 ADD R0, R3, #0 JSR MyR ADD R4, R1, R0 HALT MyR NOT R0, R0 ADD R0, R0, #1 RET .END

It's ok...I've got some answers figured out. Thanks anyway.

Here's a link to the ISA of the LC-3... http://highered.mcgraw-hill.com/sites/dl/free/0072467509/104653/PattPatelAppA.pdf

I'm having a difficult time understanding LC-3 instructions and registers. Can someone help me with these few problems, maybe explain them step by step. Thanks! 1) What is the difference between the following LC-3 instructions A and B? How are they similar and how are they different? A: 0000111101010101 B: 0100111101010101 2) The LC-3 does not have an opcode for the logical function OR. That is, there is no instruction in the LC-3 ISA that performs the OR operation. However, we can write a sequence of instructions to implement the OR operation. THe four instruction sequence below performs the OR of the contents of register 1 and register 2 and puts the results in register 3. Fill in the two missing instructions so that the four instruction sequence will do the job: (1): 1001 100 001 111111 (2): (3): 0101 110 100 000 101 (4): 3) The PC contains x3010. The following memory locations contain values as shown: x3050 x70A4 x70A2 x70A3 x70A3 xFFFF x70A4 x123B The following three LC-3 instructions are then executed, causing a value to be loaded into R6. What is the value? x3010: 1110 1110 0011 0001 x3011: 0110 1000 1100 0000 x3012: 0110 1101 0000 0000 We could replace the three-instruction sequence with a single instruction. What is it? 4) It is the case that we REALLY do not need to have load indirect (1010) and store indirect (1011) instructions. We can accomplish the same results using other instruction sequences instead of using these instructions. Replace the store indirect (1011) instruction in the code below with whatever instructions are necessary to perform the same function: x3000: 0010 0000 0000 0010 x3001: 1011 0000 0000 0010 x3002: 1111 0000 0010 0101 x3003: 0000 0000 0100 1000 x3004: 1111 0011 1111 1111