On 10 May 2010 23:10, Mariano Martinez Peck marianopeck@gmail.com wrote:
On Mon, May 10, 2010 at 5:09 PM, Igor Stasenko siguctua@gmail.com wrote:
just add some flag to interpreter state (ivar), like 'enableTrace' and a primitive which sets it to true or false.
What an idiot I am...thanks Igor. Sorry for the newbie/stupid questions. I am still new in this VM world and sometimes I don't know where I am (in OO or C world) and how to communicate from one to the other one.
That worked perfectly.
Thanks again.
Be my guest :) I like VMMaker that it's based on a simple concepts, and actually is a meta-programming tool, i.e. a program which generates another program.
Once i discovered Squeak and downloaded VM sources, i was stumbled: hey.. how do they manage to develop a VM with such weird looking sources, which consists mainly from a huge, bloated 800k C code in a single file, without any notion of organization and very hard to follow :)
Mariano
On 10 May 2010 17:33, Mariano Martinez Peck marianopeck@gmail.com wrote:
Hi folks. I need to intercept all messages. For such purpose, I modified Interpreter >> normalSend like this:
normalSend "Send a message, starting lookup with the receiver's class." "Assume: messageSelector and argumentCount have been set, and that the receiver and arguments have been pushed onto the stack," "Note: This method is inlined into the interpreter dispatch loop." | rcvr | self inline: true. self sharedCodeNamed: 'normalSend' inCase: 131. rcvr := self internalStackValue: argumentCount. (self isIntegerObject: rcvr) ifFalse: [ self doSomething: rcvr. ]. lkupClass := self fetchClassOf: rcvr. receiverClass := lkupClass. self commonSend.
But now, from the IMAGE side I would like to enable or disable such intercept. It would be great if from the Image side I can set a value to a boolean and read such value and ask, from the VM side.
Do you know if I can do this? Should I use specialObjectArray ? If true, can you give me a hint of how to do it ?
Thank you very much.
Mariano
-- Best regards, Igor Stasenko AKA sig.