Question

Assume that k correspond to register $s0 and the base of the array v is in $s1. What is the MIPS assembly code corresponding to this C segment?

If ( V[K]< V[K+1]) {

temp = v[k];

v[k] = v[k+1];

v[k+1] = temp;

}

else {

v[k] = k; v[k+1]=k+1

}

Answer 1

please find the answer below::

mul $t0,$s0,4 #get address of k
add $t1,$t0,$s1 #get address of v[k]
add $t2,$t1,4 #get address of v[k+1]

lw $t3,($t1) #get value of v[k]
lw $t4,($t2) #get value of v[k+1]

blt $t3,$t4,ifPart
elsePart:
lw $s0,($t1) #v[k] = k
add $s0,$s0,1 #get k+1
lw $s0,($t2) #v[k+1] = k+1

j exit
ifPart:

lw $t0,($t1) #get temp = v[k]

lw $t1,($t2) #get v[k+1]
sw $t1,($t0) #v[k] = v[k+1]
lw $t0,($t1) #v[k+1] = temp

exit:

Edit Execute cToMips1212.asmcToMips121.asm mul şt0 ,$80,4 #get address of k add $t1,$t0,$s1 #get address of v[k] add 3 $t2, $ t1,4 #get address of v[k+1] lv lv şt3, ($t1) şt4, ($t2) #get #get value value of of v[k] v(k+1] 8 blt $t3,$t4,ifPart 9 else Part: 11 add $s0,$30,1 #get k+1 13 14 j exit 15 if Part: 16 18 19 lw $t1 ,(St2) #ge tv[k+1] 23 exit: