Qsys: what version of Tcl?

Hi Josy,

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I just wrote a workaround for the failing '**' operator

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The following should be equivalent ...

set c expr {$a**$b)}
set c expr {int(pow($a,$b))}

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But I just found the reason: initially I wrote the module under QII 12.1:

package require -exact qsys 12.1

which I later downgraded to 12.0 (sweeping over all _hw.tcl in a bulk operation ...). I put the 12.1 back and, yes, out comes 8.6

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Ah, yes, I could see how that would downgrade Tcl.

Recently I have been using the construct

set qsys_version 

So that I can use $qsys_version to add/remove Qsys version dependencies, eg.,

#  Allow mixed-language simulation#  * invalid option in 12.1, 13.0sp1, but ok in 13.1 and 14.0
if {$qsys_version >= 13.1} {
    set_module_property PREFERRED_SIMULATION_LANGUAGE VHDL
}

Unfortunately when running under 13.0sp1, qsys_version is 13.1, which totally defeats this logic ... $::quartus(version) has the correct value, so I'll probably have to change the logic to use that.

Another case of Altera Tcl inconsistency ...

I even made sure to start Quartus from a 13.0sp1 NIOS II IDE shell, so the environment should not have picked up the tool from another installation, but I plan on trying this test on a VirtualBox install with only one version of the tool installed to check.

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Thanks again, for being the sounding board.

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Likewise!

Cheers,

Dave