MSU Denver, CS CS $2400$: Computer Organization $2$ Dr$.$ Weiying Zhu

Homework $1($Total Points: $80),$ Due Date$*$ : $11$:$59$pm $01/26/2024,$ Cutoff Deadline$**$ : $11$:$59$pm $01/28/2024$

$*$ Late penalty will apply for past$-$due late submission; $**$ Submission will NOT be accepted after the cutoff deadline

Relevant Topics: Discussed in the lectures$/$classes before or on the Due Date.

Submission: Upload and submit your solutions in Canvas. Only ONE attempt is allowed for each student. Please try your best to

TYPE your solutions. If your solutions are in hand$-$written, please SCAN it into a $.$pdf file. Then upload the file and submit your

homework in Canvas. $($NO Paper$/$Hardcopy or Email submission please!$)$

Please $1)$ organize your solutions to the problems in the same order given in the assignment,

$2)$ include enough details to show your work for problems A and D to receive credits for those two problems,

$3)$ include your First Name and Last Name on the page$($s$)$ that you upload & submit in Canvas,

$4)$ NAME your HW file as $"$HW$<$#$>",$ e$.$g$.,$ HW$1$SmithAlice.pdf for HW$1.$

Grading: I will grade it in Adobe Acrobat with corrections and post the graded work with corrections in Canvas for everyone who

submits it$.$

Problem A$.$ On an ARM processor, determine the values of four condition flags in APSR after an arithmetic operation is executed in

each case $($assuming that S$-$bit is set$).$ The addition or subtraction must be performed in HEX or BIN and can NOT be performed in

DEC since those numbers represent signed OR unsigned values $($These instructions are NOT executed one after the other one; instead,

each instruction starts with the initial conditions given in the statement.$)$

$($a$)0$x$92394103+0$xA$04230$C$8$

$($b$)0$x$123456780$xEDCBA$988($optional$,10$ extra bonus points$)$

Problem B$.$ In each of the following MOV or MVN instruction, identify whether the use of the immediate value is VALID or INVALID.

$($a$)$ MOV R$1,$ #$0$xD$017$

$($b$)$ MOVW R$1,$ #$0$xE$689$

$($c$)$ MOV R$1,$ #$0$xAC$5$

$($d$)$ MVN R$1,$ #$0$xAC$5$

$($e$)$ MVN R$1,$ #$996$

$($f$)$ MVN R$1,$ #$0$x$9$B$000000$

$($g$)$ MOV R$1,$ #$0$xF$300$F$300$

$($h$)$ MOV R$1,$ #$0$x$1357$CDEF

Problem C: On an ARM processor, assuming that $[$N$-$bit$]=0,[$Z$-$bit$]=0,[$C$-$bit$]=1,[$V$-$bit$]=1,$ predict whether each of the following

branch instruction is going to make the flow of control branch to the instruction labeled by NEXT $($i$.$e$.,$ YES or NO$).($These instructions

are NOT executed one after the other one; instead, each instruction starts with the initial conditions given in the statement.$)$

$($a$)$ BLS NEXT

$($b$)$ BNE NEXT

$($c$)$ BLE NEXT

$($d$)$ BVC NEXT

Problem D$.$ On an ARMv$7-$M or ARMv$8-$M processor, assuming that $[$R$1]=0$x$010$E$0$C$2$D$,[$R$2]=0$xFDB$97531,[$R$3]=0$x$0000000$C$,$

$[$N$-$bit$]=1,[$Z$-$bit$]=0,[$C$-$bit$]=0,[$V$-$bit$]=1,$ predict the $32-$bit $[$R$1],[$N$-$bit$],[$Z$-$bit$],$ and $[$C$-$bit$]$ after an ARM instruction is executed

in EACH case. $($These instructions are NOT executed one after the other; instead, each instruction starts with the initial conditions given

in the statement.$)$

$($a$)$ MOVS R$1,$ #$0$xFAB

$($b$)$ MVNS R$1,$ #$0$x$2$FC

$($c$)$ MVNS R$1,$ R$2,$ LSL R$3$

$($d$)$ LSRS R$1,$ R$2,$ R$3$

$($e$)$ MVNS R$1,$ R$2$