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Altera_Forum
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21 years ago

[Nios II]: questions on "trap" and modelsim

Hi, I started to use the "Nios II/fast core" and made some timing tests. but I got some trouble to find out how "trap" work. in assembly, when user issue a trap: .... tra...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Ok, thanks for the response.

But, I looked at Exception.S and I dont really see the meaning of this instruction though.

the main purpose seems to manage software multiplication and division, when the Nios generate itself a trap.

but, what is the purpose for the user, to issue a trap??

( no difference with a system call?!)

Sylvain