Hi I want to explain where ec is coming. I thought that the arguments of pragmas could only be literal and when I see ec it looks like a variable set by the VM newMethod: numberOfBytes header: headerWord "Primitive. Answer an instance of me. The number of literals (and other information) is specified by the headerWord (see my class comment). The first argument specifies the number of fields for bytecodes in the method. Fail if either argument is not a SmallInteger, or if numberOfBytes is negative, or if memory is low. Once the header of a method is set by this primitive, it cannot be changed to change the number of literals. Essential. See Object documentation whatIsAPrimitive." <primitive: 79 error: ec> ec == #'insufficient object memory' ifTrue: [^self handleFailingNewMethod: numberOfBytes header: headerWord]. ^self primitiveFailed Stef