Verilog program counter

When branch is 1, you write:. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Verilog Program Counter with branching Ask Question.

Asked 5 years, 9 months ago. Active 1 year, 9 months ago. Viewed 10k times. Add a comment. Active Oldest Votes. Hida Hida 5 5 silver badges 18 18 bronze badges. Just for correctness, what he wants is a relative jump, not an absolute jump as his immediate value is added to the current PC to make a jump, not loaded into the PC. Was it unclear that I wrote about both? I just went ahead and assumed that his assignment needed both although he had not specified it. Ari Ari 5, 9 9 gold badges 36 36 silver badges 61 61 bronze badges.

There must be an input related to indicate, whether it is a branch instruction or not. In your case, we can take an extra input to indicate, branch instruction.

Modulus Counters, or MOD counters, are defined based on the number of states that the counter will sequence before returning to its original value. Note also that it has taken four clock pulses to get from 00 to However, counters can be designed to count to any 2 n states in their sequence by cascading together multiple counting stages to produce a single modulus or MOD-N counter. Therefore, a "Mod-N" counter will require the "N" number of flip-flops connected to count a single data bit while providing 2 n different output states n is the number of bits.

Note that N is always a whole integer value. Then we can see that MOD counters have a modulus value that is an integral power of 2, that is, 2, 4, 8, 16 and so on to produce an n-bit counter depending on the number of flip-flops used, and how they are connected, determining the type and modulus of the counter. This is a counter that resets at a chosen number.

For example, a two-digit decimal counter, left to its own devices, will count from 00 to This is not much use for a clock unless you have seconds minutes. To fix the problem, the counter must go from 00 to This is achieved by detecting a 6 in the left-hand digit and using it to reset the counter to zero.

This would be a Modulo 6 Counter or 60 if we included both digits. Suppose we want to design a MOD-5 counter. JavaTpoint offers too many high quality services. Mail us on [email protected] , to get more information about given services. Please mail your requirement at [email protected] Duration: 1 week to 2 week. Verilog Tutorial. Simulation waveform for random counter:. Recommended Verilog projects:. What is an FPGA? Verilog code for FIFO memory 3.

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