You want to check the PrintLib.h file to find out which flags to use. %a will print ascii and if I remember correctly this is noted as a difference from standard usage.
-Jaben -----Original Message----- From: Stephen Polkowski [mailto:step...@centtech.com] Sent: Monday, March 25, 2013 4:02 PM To: edk2-devel@lists.sourceforge.net Subject: [edk2] AsciiPrint() and %s Hello, I'm trying to print a simple ASCII string to the console. I decided to try AsciiPrint() from the MDE package. I started having problems right away. The function wouldn't print an Ascii string. Here's my code: #include <Uefi.h> #include <Library/UefiLib.h> #include <Library/ShellCEntryLib.h> INTN EFIAPI ShellAppMain (IN UINTN Argc, IN CHAR16 **Argv) { char world[] = "world"; AsciiPrint("hello %s\n", world); return 0; } After some digging around, I noticed that AsciiPrint calls the BasePrintLibSPrintMarker function which defaults to Unicode for %s. Is this correct? The documentation for AsciiPrint in the MDE document states that it will print a formatted ASCII string to the console. However, it makes no mention of the type of strings supported in the VA list. In my mind it should be supporting ASCII. Is this a bug or the intended behavior? Thanks, Stephen BasePrintLib/PrintLibInternal.c: case 's': case 'S': Flags |= ARGUMENT_UNICODE; // // break skipped on purpose // case 'a': ------------------------------------------------------------------------------ Own the Future-Intel® Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel ------------------------------------------------------------------------------ Own the Future-Intel® Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
