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What assembly language instruction clears register $25 ?

Answer:

or  $25,$0,$0        # $25 <— $0

(There are others that also work for this).


Target Instruction

The program starts with: 

or  $25,$0,$0        # clear $25

Now the correct bit patterns are placed into the fields of the instruction. The instruction we are assembling is: 

ori  $8,$9,0x004A

QUESTION 15:

Fill in the fourth row with the bit patterns. Use hexadecimal (assume that the bit patterns are truncated on the left to make them the right size).

ori   $8,$9,0x004A
31....26 25...21 20...16 15...................0
0x0D s d unsigned const

 


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