UNIT III Data Path Colour Diagrams

UNIT III      THE PROCESSOR

DATA PATH

Remember Table 3 and Figure 1. Figure 1, provides all data paths and control signals. You will be asked to draw (design) data path for the following instructions.

1. Any register-type (R-type) instruction. e.g. add $s1,$s2,$s3

2. load word (lw) or store word (sw) instructions.  lw e.g. lw $t1, 100($s0) ;   sw $t1, 100($s0) 

3. branch if equal (beq) instruction. e.g.  beq $s1,$t1,100

4. jump instruction.  e.g. j 2500 

 The value for the control signal (0 or 1) is given in figure 1 based on table-3. For your convenience they are also given in the corresponding places in figure 1. If question does not require to draw control signals you need not give table 3 and the control signals.

After remembering and under standing figure 1, you just observe figure 2, 3,4,5 and the instructions given in the text boxes.  

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