Function AsciiCharToUpper

MdePkg/Library/BaseLib/String.c:1324–1331

Converts a lowercase Ascii character to upper one. If Chr is lowercase Ascii character, then converts it to upper one. If Value >= 0xA0, then ASSERT(). If (Value & 0x0F) >= 0x0A, then ASSERT(). @param Chr one Ascii character @return The uppercase value of Ascii character **/

**/
CHAR8
EFIAPI
AsciiCharToUpper (
  IN      CHAR8                     Chr
  )
{
  return (UINT8) (((Chr >= 'a') && (Chr <= 'z')) ? Chr - ('a' - 'A') : Chr);
}

/**
  Convert a ASCII character to numerical value.