Writing an emulator in python - implementation questions (for performance)

[Gabriel Genellina]

En Thu, 12 Nov 2009 23:29:03 -0300, greg <greg at cosc.canterbury.ac.nz>  
escribió:
> Carl Banks wrote:
>> You
>> can define constants to access specific registers:
>>  R1L = 1
>> R1H = 2
>> R1 = 1
>>  breg[R1H] = 2
>> print wreg[R1]
>
> But keep in mind that named "constants" at the module level
> are really global variables, and therefore incur a dictionary
> lookup every time they're used.
>
> For maximum speed, nothing beats writing the numeric literals
> directly into the code, unfortunately.

This recipe may improve speed dramatically in those cases:
http://code.activestate.com/recipes/277940/

-- 
Gabriel Genellina