Ive understood the first part of this lab and have gotten all the answers. i just need help on answers...
Ive understood the first part of this lab and have gotten all the answers. i just need help on answers #21 through #27. Im pretty lost on this....;we are using the;Brookshear machine simulator;Experiment 2;In this Experiment you will learn about the use of the JUMP instruction. The following;program contains both conditional instructions and a loop.;memory memory;address content comment;F0 20,LOAD R0 with 00;F1 00;F2 21,LOAD R1 with 01;F3 01;F4 23,LOAD R3 with 03;F5 03;F6 B3,JUMP to FC if R3 equals R0;F7 FC;F8 50:ADD R0, R1 into R0;F9 01;FA B0,JUMP to F6;FB F6;FC C0,HALT;FD 00;Step 1. Either re-start the simulation program, or select C to clear both main memory;and registers of any previous values. Then select option M to enter the program.;Check that the program has been placed correctly in memory. ? Anthony W. Smith, 2014;CSCI 108: Survey of Computer Science;Lab 4: Introduction to machine code lab;Step 2. Select option P, and set the Program Counter to the address of the start of the;program;Step 3. Select option S to execute the program one step at a time. Record the value of;the PC after each step. (HINT: you should record 13 PC values including FC for the;HALT instruction.);19.;Step 4. How many times do we go round the loop?;20.;Step 5. A JUMP instruction is said to be unconditional if a jump will occur every time;the instruction is executed.;21. the JUMP at address FA is an unconditional jump (T / F);Step 6. Say I erased the program from memory, then entered it again starting in location;A0. Two instructions would have to be changed for the program to work. Write down;the old instruction, the new instruction, and the new comment for each. (Check your;answers by entering the new program and running it until it terminates.);22. old instruction #1;23. new instruction #1;24. new comment #1;25. old instruction #2 ___________________________________________________ ? Anthony W. Smith, 2014;CSCI 108: Survey of Computer Science;Lab 4: Introduction to machine code lab;26. new instruction #2;27. new comment #2
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