Design of Basic Computer



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The basic computer consists of the following hardware components:

1. A memory unit with 4096 words of 16 bits each

2. Nine registers: AR, PC, DR, AC, IR, TR, OUTR, INPR, and SC

3. Seven flip-flops: I, S, E, R, lEN, FGI, and FGO

4. Two decoders: a 3 x 8 operation decoder and a 4 x 16 timing decoder

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1 Arithmetic Logic Shift Unit link
2 Instruction Codes link
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3 operation code link
4 Stored Program Organization link
5 Instruction Codes link

5. A 16-bit common bus

6. Control logic gates

7. Adder and logic circuit connected to the input of AC

The memory unit is a standard component that can be obtained readily from a commercial source. The registers are of the type shown in

 

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1 Fixed-Point Representation link
2 Integer Representation link
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3 Arithmetic Addition link
4 ARITHMETIC SUBTRACTION link
5 Overflow link

 

 

 

 

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1 Complete Computer Description link
2 Design of Basic Computer link
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3 Control Logic Gates link
4 Control of Registers and Memory link
5 Control of Single Flip-flops link

 

 

 

 

 

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1 Binary Adder link
2 Binary Adder-Subtractor link
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3 Binary lncrementer link
4 Logic Microoperations link
5 List of Logic Microoperations link

 

 

 

 

 

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1 Program Counter link
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are similar to integrated circuit type 74163. The flip-flops can be either of the D or JK type, as described in Sec. 1-6. The two decoders are standard components similar to the ones presented in Sec. 2-2. The common bus system can be constructed with sixteen 8 x 1 multiplexers in a configuration similar to the one shown in Fig. 4-3. We are now going to show how to design the control logic gates. The next section deals with the design of the adder and logic circuit associated with AC.

These Topics Are Also In Your Syllabus
1 Binary Adder link
2 Binary Adder-Subtractor link
You May Find Something Very Interesting Here. link
3 Binary lncrementer link
4 Logic Microoperations link
5 List of Logic Microoperations link

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Rating - 3/5