What's New in C51 Version 8.05

• [µVision3 IDE/Debugger/Simulator]
  Added device simulation support for Infineon XC886 and Infineon XC888 devices.
• [µVision3 IDE/Debugger/Simulator]
  Corrected simulation problems with two serial windows for Philips P89LPC952/954 devices.
• [µVision3 IDE/Debugger/Simulator]
  Added several excluded simulation features for the Mentor M8051EW and corrected a problem with debugging non-banking applications.
• [µVision3 IDE/Debugger/Simulator]
  Added several excluded simulation features for the Cast R8051XC and added simulation for peripheral timing and write operations into code memory.
• [LX51 Linker/Locator]
  Corrected a linker optimization problem when using interbank call tables (?B_RST_BANK != 0xFF).
• [ULINK]
  Corrected a flash programming problem with the driver for STMicroelectronics uPSD3422 devices.
• [Cx51 Compiler]
  Corrected a semantic interpretation problem that prevented the compiler from issuing an error when accessing struct members with s->member rather than s.member.
• [Cx51 Compiler]
  Corrected a problem that may cause registers to be overwritten when using multiple dummy assignments to avoid unused variable warnings.
• [Cx51 Compiler]
  Corrected a potential code problem with incrementing far pointers using long constants. For example:

  void func (void) {
    unsigned int i;
    long far* entry;
  
    while(i)  {
      i--;             // increment missing
      entry += 1L;     // due to 'far' pointer increment with 1L
    }
  }
  

• [Cx51 Compiler]
  Corrected a potential problem on SmartMX devices when using Optimize level 8 or 9 without OBJECTADVANCED. For example:

  #pragma MXP
  
  int  xdata x;
  char xdata * xdata p;
  
  void f1 (char *);
  void f2 (char *);
  
  void main (void)  {             // uses CMPW instruction that affects 'Z' flag
    if (x == 0xFFFF) f1 (p);      // MOVX A,Rx,@DPTR destroys 'Z' flag
    else             f2 (p);      // and cannot be combined
  }