[Vm-dev] changing the bytecodes print

Tobias Pape Das.Linux at gmx.de
Tue Mar 8 12:12:09 UTC 2011


Am 2011-03-08 um 09:06 schrieb Mariano Martinez Peck:
> Hi folks. Did you see that when you see the bytecodes of a method you see something like:
> 
> 49 <70> self
> 50 <21> pushConstant: 'SQ_HOST32'
> 51 <8F 00 00 02> closureNumCopied: 0 numArgs: 0 bytes 55 to 56
> 55     <71> pushConstant: true
> 56     <7D> blockReturn
> .......
> 
> 
> The bytecode number here is printed in <hex> . However, in Interpreter and its #initializeBytecodeTable  they use base 10. So, each time I read a bytecode, and I want to know which is the method associated with that, I need to convert it. 
> So, I wonder if it makes sense to change the print, so that it prints in decimal. What do you think?
> 
> To change that, it seems to be in InstructionPrinter >> #print   but I cannot make it work yet :(


I can understand your urge, but be aware that
a Hex number in the bytecode range always takes
up (at max) two characters (as in 00 – FF).
Probably, using hex numbers ind the #initializeBytecodeTable
would be the better idea?

So Long,
	-Tobias


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