<div dir="ltr">Hi Juan, then how do you explain:<br><br>"Just to clarify: the issue was experienced only when running on Cog...<br>
current versions of the Stack VM performed as expected."<br><br></div><div class="gmail_extra"><br><div class="gmail_quote">2016-04-28 21:10 GMT+02:00 Juan Vuletich <span dir="ltr"><<a href="mailto:JuanVuletich@zoho.com" target="_blank">JuanVuletich@zoho.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
On 4/28/2016 2:13 PM, Phil (list) wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
On Thu, 2016-04-28 at 12:58 -0400, Phil (list) wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Thu, 2016-04-28 at 16:43 +0200, Clément Bera wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Have you tried on latest VM ? I remembered fixing a bug on #==<br>
primitive like a month ago. The problem was when performing #==<br>
primitive with the argument being a forwarder to an immediate.<br>
<br>
</blockquote>
The problem still existed as of Cog #3686 (Juan found the fix<br>
yesterday.) On my system, Cuis last worked perfectly with 3370,<br>
mostly<br>
worked with 3390, somewhat worked with 3427 and did not work after<br>
that<br>
until we found the Character>>#= bug/fix.<br>
</blockquote>
Just to clarify: the issue was experienced only when running on Cog...<br>
current versions of the Stack VM performed as expected.<br>
</blockquote>
<br>
Fortunately I work with Gera Richarte @ Satellogic, and it didn't take long for him to suggest an explanation: Maybe prim 110 is broken in recent Cog VMs, but nobody notices it because the only sender is #== that is already optimized by the jitter, so prim 110 is never really called. And I realized we can test that theory. First, we add this method to Character:<br>
<br>
=== aCharacter<br>
<primitive: 110><br>
self halt<br>
<br>
Then the following snippet (in latest Cuis, #2744):<br>
<br>
0 to: 255 do: [ :i1 | 0 to: 255 do: [ :i2 | i1 = i2 ifFalse: [(Character value: i1) === (Character value: i2) ifTrue: [{i1.i2} print ]]]]<br>
<br>
prints nothing if run with Cog 3370, but prints a lot of pairs in more recent Cog. So I think Gera is right.<br>
<br>
Thanks,<br>
Juan Vuletich<br>
<br>
</blockquote></div><br></div>