keil c166 v7.54 uvision开发工具 -九游会网页

release date: 5 august 2014

• [c166 compiler]
  • corrected: warning c912 'constant': value truncated removed on expressions that used local variables definition. example:

    void main (void)
    {
      unsigned char a = 8;
      unsigned char b = a   5;   // <- incorect warning generation c192: 'constant': value truncated.
      while(1);
    }
    

  • corrected: incorect return type conversion from int to huge pointer. example:

    #include "string.h"
    int foo (char *a, char *b, unsigned char c, unsigned char d, unsigned char e) 
    {
      return (c == d) && ((e == d) ? (a == b) : strcmp(a,b));         //  warning c40: 'int' converted to 'huge' pointer
    }
    

  • added: error e201 to show errors with 'const sdata' attributes.
• [l166 linker]
  • increased: maximum amount of symbols for linking from 32000 to 48000.
• [oh66 object\hex converter]
  • enhanced: oh166 supports now an invocation line up to 255 characters.
• [μvision debugger\simulator]
  • corrected: the watch window displayed erroneously sfrs as 32 bit values. sfr values displayed correctly as 16 bit values.
  • corrected: under some circumstances signal functions could change the content of the disassembly window. this problem was introduced with c166 version 753.
  • corrected: under some circumstances after run a load command, previously defined and used debug functions become undefined identifiers.
  • improved: loader can read hex files with corrupted line endings.
• • this c166 release comes with μvision v5.11.2.0.

c166 version 7.53 release

release date: 4 july 2013

• [c166 compiler]
  • corrected: an address conversion error. address conversion from xhuge address to 'unsigned long' does not consider 64k segment boundaries. example:

    #pragma large browse mod167 debug
    unsigned char xhuge ucarr[0x20000];      // assuming that this array is located at address 0x10204.
    unsigned int xhuge * addr1 = &ucarr[0x10000];                     // the addr1 is 0x20204 which is the expected address.
    unsigned long const  addr2 = (unsigned long)(&ucarr[0x10000]);    // the addr2 is 0x10204 which is an incorrect result.
                                                                      // this cast does not consider the 64k segment overvlow.
    

  • corrected: a stack corruption when __inline function is used with ot(4) or greater. this problem was introduced with c166 version 750. example:

    unsigned char g_ucarr[4]={0x10,0x11,0x12,0x13};
    static __inline void inlfnc(unsigned char par)
    {
      signed long *sldat;
      unsigned char ucarr[4];
      ucarr[0]=g_ucarr[3];
      ucarr[1]=g_ucarr[2]; 
      ucarr[2]=g_ucarr[1]; 
      ucarr[3]=g_ucarr[par]; 
      sldat=(signed long *)ucarr;
    }
    void foo(void)     // in function foo(), the compiler alocates only 2 bytes on the stack,
    {                  // while the object inside the inlined function inlfnc() needs 4 bytes.
     inlfnc(0);        // that causes corruption of other data on the stack.
    } 
    

• • since c166 version 7.52 the firmware of the ulink2 target debuger will be updated to version 2 which will not work with older c166 installations.
    the .\c166\ulink\utilities\ul2_configure.exe tool allows to switch back to an older firmware version when backward compatibility is needed.
• • this c166 release comes with μvision v4.72.9.0.
  • refer to  for a complete list.