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Altera_Forum
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14 years ago

program counter don't work

I write a program about simple cpu in quartuss II v 9.1 sp2 . Beginning I put all instructions to ram then fetch each instruction to Intruction register and decode it .Normally when fetch the program...
Altera_Forum's avatar
Altera_Forum
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14 years ago

About point 3, Quartus *may* recognise the code as a state machine and in this case implement a hardware that will correspond to simulation and will increase the PC once each time Y is changed to fetch. But this would need to be verified with a synthesis... I'm not sure it will be recognised though because this code doesn't fit with Altera's recommended way of describing a state machine. Have a look here for the recommended code styles: http://www.altera.com/literature/hb/qts/qts_qii51007.pdf