Answer to Question #242397 in Electrical Engineering for pranav

Question #242397
A hardware implementation is required for executing the following equations, draw
proper diagrams to complete your results. [5 marks]
1- x+y+z+a.b : R3 <- R4-R5
2- a.c.b+d : R3 <- R4+R6
1
Expert's answer
2021-09-27T01:44:02-0400

 Provided that:

x+y+z+a.b : R3 <- R4-R5

   a.c.b+d : R3 <- R4+R6

It is evident that the type of design requires a critical understanding of organization. Instructions are stored in one section of memory and data in another. For a memory unit with 4096 words, we need 12 bits to specify an address since 212 = 4096. If we store each instruction code in one 16-bit memory word, we have available four bits for the operation code (abbreviated opcode) to specify one out of 16 possible operations, and 12 bits to specify the address of an operand. The control reads a 16-bit instruction from the program portion of memory. It uses the 12-bit address part of the instruction to read a 16-bit operand from the data portion of memory. It then executes the operation specified by the operation code:



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