Q$\mathrm{.}4.$ Instruction sets $[25$ marks$]$

a$)$ Write assembly code segments that implement the following high$-$level statement, for each of

the architectures shown below, where all variables are in memory locations. $[$The order of

instructions should be preserved. SUB and DIV commands are available.$]$

$z=\frac{a-(b-c)}{e}$

a stack architecture

Answer

$,$ load$/$store architecture

Answer

a $3-$address architecture.

Answer

b$)$ Convert the following statement into MiniMIPS assembly instructions, where all variables are in

memory locations. Use $f$ and $g$ from your ID$.$ You are only allowed to use the $20$ instructions

covered in class. Assume $s$ is in $$t0,a$ is in $$t1,b$ is in $$t2,x$ is in $$t3.$

Note that the bne and beq instructions dan't have an immediate operand so you have to

initialize variables of your ID digits to use.

AnswerWrite assembly code segments that implement the following high$-$level statement, for each of the architectures shown below, where all variables are in memory locations. $[$The order of instructions should be preserved. SUB and DIV commands are available.$]$