Repeat Problem 4-42 by using a VHDL process containing if- then- else statements.

Problem 4-42:

Although this chapter has introduced VHDL processes to describe sequential circuits, combinational circuits can also be described using processes. Write a VHDL description for the multiplexer in Figure 3-25 by using a process containing a case statement rather than the continuous assignment statements.

Figure 3-25:

S So 8 & Decoder D Io I 12- 4x2 AND-OR Y