Can a PROM and Shift Register Recognize Specific Number Sequences?

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To implement a sequential circuit that recognizes the sequences 1, 4, 5, 9 and 12, 13, 14, 15 using a PROM and a shift register, it is essential to understand the operation of shift registers as they process input data with each clock pulse. The challenge arises from the complexity of creating a situation table with numerous possibilities for a 4-bit number, making traditional flip-flop methods impractical. Participants suggest exploring alternative solutions that leverage the capabilities of PROMs for efficient state recognition. A clear strategy needs to be developed to simplify the design process while adhering to the requirements of the project. Seeking guidance on specific design techniques or examples could help clarify the implementation process.
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i need to implement a sequential circuit that has two outputs
the first recognizes 1,4,5,9
the second one recognizes 12,13,14,15
i need build this one using a PROM and a shift register
 
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what should i do...

i think that a shift register is just a slow input line
it proceeds in each Clock pulse were in normal line they data comes straight away.i was required to use it in the question

i don't have any idea of how to build this thing

when i tried to build the situation table
i came to the conclusion that building it in the normal way with flip flops
its impossible.its a 4 bit number
there are lots of possibilities
it would take me hours to write each one

i think they intended for some other solution

what should i do??
 
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