Switching between code translation and execution using a trampoline

摘要

An execution control method is described for use in a translator (19) which converts subject code (17) into target code (21). The translator (19) includes a translator trampoline function 191 which is called from a translator run loop 190 and which in turn calls either to a translator code generator 192 to generate target code, or else calls previously generated target code 212 for execution. Control then returns to the translator trampoline function 191 to make a new call, or returns to the translator run loop 190. Other aspects include making context switches through the trampoline function 191 and setting first and second calling conventions either side of the trampoline function 191. Jumping directly or indirectly between target code blocks 212 during execution is also described.