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Altera_Forum's avatar
Altera_Forum
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20 years ago

custom instruction

hello, Does everyone know how to count the time of calling a custom insruction to run C program? http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/huh.gif
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hi Allen,

I would suggest that the cycle count of the custom instruction is pretty much what the field "cycle count" in the custom instruction tab of th SOPC cpu wizard says. I verified this using a timer for the hw division in a NIOS I cpu.