Answer
Assuming that variables $a, b, c,$ and $d$ are stored in memory locations $100,$
$101,102,$ and $103,$ respectively:
$\begin{array}{llll}
{\textbf {Memory}} & {\textbf {} } & {\textbf {Address} } & {\textbf {} }\\
{\textbf {Location }} & {\textbf {Op Code $\quad$$\quad$} } & {\textbf {Field $\quad$ $\quad$} } & {\textbf {Comment} }\\
{50} & {\text { COMPARE}} & {100, 101} & {\text {Compare a and b and set condition codes} } \\
{51} & {\text { JUMPNEQ}} & {54} & {\text { if they are not equal, go to address 54} } \\
{52} & {\text { LOAD}} & {103} & { \text {Otherwise load R with the value of d} } \\
{53} & {\text { STORE}} & {102} & {\text {And store it into c} }\\
{54} & {\text { }} & { } & {\text {The next instruction begins here} }\\
\end{array}\\$
Work Step by Step
Assuming that variables $a, b, c,$ and $d$ are stored in memory locations $100,$
$101,102,$ and $103,$ respectively:
$\begin{array}{llll}
{\textbf {Memory}} & {\textbf {} } & {\textbf {Address} } & {\textbf {} }\\
{\textbf {Location }} & {\textbf {Op Code $\quad$$\quad$} } & {\textbf {Field $\quad$ $\quad$} } & {\textbf {Comment} }\\
{50} & {\text { COMPARE}} & {100, 101} & {\text {Compare a and b and set condition codes} } \\
{51} & {\text { JUMPNEQ}} & {54} & {\text { if they are not equal, go to address 54} } \\
{52} & {\text { LOAD}} & {103} & { \text {Otherwise load R with the value of d} } \\
{53} & {\text { STORE}} & {102} & {\text {And store it into c} }\\
{54} & {\text { }} & { } & {\text {The next instruction begins here} }\\
\end{array}\\$
