"Compile qs_arm.s (arm64)328"CompileC /Users/alain/Library/Developer/Xcode/DerivedData/QS-cibiavwrwfecqvgtkmfwdqiatgoh/Build/Intermediates.noindex/QS.build/Debug/QS.build/Objects-normal/arm64/qs_arm.o /Users/alain/Desktop/QS_univ/sources/qs_arm.s normal arm64 assembler-with-cpp com.apple.compilers.llvm.clang.1_0.compiler (in target 'QS' from project 'QS')c45c92378389c641^755897378389c641^-190"/Users/alain/Desktop/QS_univ/sources/qs_arm.s:159:2: error: unrecognized instruction mnemonic, did you mean: and, ands? vand q8, q8, q10 ^ Command CompileC failed with a nonzero exit code 1(21%IDEActivityLogMessage5@48"Command CompileC failed with a nonzero exit code-

Yes! The correct syntax is: and v8.8b, v8.8b, v10.8b On other hand do you know (I am just curious) why ARM does "and immediate" so restricted ? By example the assembler accept add x2,x1,#32 but reject and x2,x1,#22 Thank you very much.

[quote='818679022, endecotp, /thread/770989?answerId=818679022#818679022, /profile/endecotp'] (At least, that is the intention.) [/quote] Not sure is the best way... I think most user want a regular immediate... I really appreciate you help. Thank you very much.

How to use: b libsystem_trace.dylib``_os_log_error_impl ?

Thank you for the link. With os_log_error(OS_LOG_DEFAULT, ""); I was able to see that disable "Visible At Launch" in MainMenu.nib cause the "CGSWindowShmemCreateWithPort failed on port 0" log error. What can I do to make the window not visible at launch (other than close the window in awakeFromNib)? How to fix the second issue: "No error handler for XPC error: Connection invalid" The code don't use any communications (etnernet, wifi or bluetooth) call.

If you disable Visible At Launch, you get this log message. Yes This log message is bad. Surely Thus you need a different way to make your window not visible at launch. Yes

No one except the: "No error handler for XPC error: Connection invalid" that happen when the application quit.

Thank a lot for all precious reply.

With NSOpenPanel opendir() work correctly but the user don't want to select files and folders each time the application is launched. So I save the files and folders URLs for the next time. But then opendir(the_saved_URL) fail. What is the way to make opendir(the_saved_URL) work correctly ?