Hi nick, hi all I tried and build the ARM simulator, but I really was never able to get it working for an arm-linux-pxa270-softfloat-gnu platform (forgive the fantasy name). Am I missing something? I thought that the simulator was working just with not-so-modern arm platforms and, most of all, not with OS (linux) support. Forgive my ignorance if I'm wrong. Luca Piccarreta ----- Original Message ----- From: "Nick Clifton" <nickc@xxxxxxxxxx> To: "aram bharathi" <aram_bharathi@xxxxxxxxxxxxxx> Cc: <gcc-help@xxxxxxxxxxx>; <crossgcc@xxxxxxxxxxxxxxxxxx>; <arm-gnu@xxxxxxxxxxxxxxxx>; <arm-gnu-help@xxxxxxxxxxxxxxxx> Sent: Monday, December 13, 2004 12:37 PM Subject: Re: [arm-gnu] how to add new instruction in gcc > Hi Aram, > > > i like to add some new instructions to the existing arm processor. > > after adding new instructions how can i check whether newly added > > instruction executes correctly or not. > > Use the arm-gdb simulator. > > Cheers > Nick >