Computer Science homework help

Computer Science homework help. Quiz 6

  1. The MIPS processor has an ALU unit shown in the following figure. There are three-bits control signals sent to ALU circuit generated by the ALU decoder within the control unit, as listed in the following table.

 
Figure 1. ALU Unit
What are the three-bits control signal values for implementing the instruction “lw”?
lw     $rt,  immed($rs)   # load word from memory address [$rs]+immed
 
What are the three-bits control signal values for implementing the instruction “addi”?
addi     $s0,  $s0, -1  # [$s0]= [$s0]-1
 
 
 
 
 
 
 

Computer Science homework help