On Mon, Feb 7, 2011 at 6:52 AM, Francois Stephany
<tulipe.moutarde@gmail.com> wrote:
So StackToRegisterMappingCogit should be faster than the other ? If so, why does the SimpleStackBasedCogit still exist ?
Juts in case people find bugs with the StackToRegisterMappingCogit that are not in�SimpleStackBasedCogit. �SimpleStackBasedCogit is "mature"; we've used it for almost two years at Teleplace, and while I've fixed serious bugs in it in the past month it is quite possibly less buggy than�StackToRegisterMappingCogit.
(Sorry but I'm a total newbie)
One can only learn by asking questions. �Not knowing, one is not in a position to know whether a question is stupid or not, so one must not be afraid of asking stupid questions if one wants to learn. �Please continue.
best,
Eliot
On 07/02/11 15:42, Igor Stasenko wrote:
On 7 February 2011 12:28, Krishsmalltalk
<krishnamachari.sudhakar@gmail.com> �wrote:
StackToRegisterMappingCogit maps values to machine registers when generating
code,
while stack-based one uses stack for everything.
Guess that is what is meant..
Register based vms like Parrot will offer more info... As to motivation for
this mapping
a motivation is simple: speed.
Access to CPU registers usually 2-5 orders of magnitude faster than
memory access.
On Feb 7, 2011, at 2:53 PM, Igor Stasenko<siguctua@gmail.com> �wrote:
On 7 February 2011 09:12, Francois Stephany<tulipe.moutarde@gmail.com>
wrote:
Hi Eliot,
Probably a stupid question but what's the difference between
SimpleStackBasedCogit and c?
SimpleStackBasedCogit maps values to machine registers when generating code,
while stack-based one uses stack for everything.
� � new Cog VMs are available, SimpleStackBasedCogit @
http://www.mirandabanda.org/files/Cog/VM/VM.r2359/ and
StackToRegisterMappingCogit @
http://www.mirandabanda.org/files/Cog/VM/VM.r2361. �I think the new code
generator is ready for prime time now. �I fixed a number of bugs over
the past three weeks and we're now using the StackToRegisterMappingCogit
internally at Teleplace.
--
Best regards,
Igor Stasenko AKA sig.
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