readme.txt

picc v8.05破解版

Release notes for MPLAB 6 Update
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

DATE: 15 April 2003

This update adds compatibility to the compiler for use with MPLAB 6.xx.

Known Issues:
~~~~~~~~~~~~

	- Modules which contain variable declarations must also contain code.
	  If a module exists which contains only variable declarations, then
	  these variables may not appear in the MPLAB watch window. The actual
	  code generated is not affected.

	- When global optimisations are turned on, local variables and
	  parameters may be placed into registers. The effect of this is
	  that local variables which are candidates for optimisation may
	  not always be in sync with the MPLAB watch window.

Fixes for .COD file format support:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	- Fixed problem which caused cromwell to run in an endless loop,
	  generating a massive output file.

	- Fixed a problem where not enough line number information was being
	  put down. The effect of this is that when used in MPLAB the C step
	  button had to be pressed many times to get to the next line. This
	  problem mostly occurs at the first line of C code in a function.

Fixes for PIC COFF file support:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	- Numerous fixes for structures and unions, arrays within structures
	  or unions, arrays of structures within structures or unions, and
	  multidimensional arrays of any type. These problems manifested as
	  'Invalid Array' or 'Unsupported Struct' in the MPLAB watch window.

	- Fixed the storage class for automatic variables to denote their
	  static nature. This resolves bad resolution of variable addresses
	  when using the ICE2000, and may affect other emulators. The MPLAB
	  simulator is not affected.

	- Fixed problems with conflicting variables when two or more automatic
	  and/or global variables have the same name.

	- General improvements to COFF output which do not affect debugging,
	  but may result in slightly smaller output files.

	- Fixed problem which caused cromwell to crash when processing C code
	  with deeply nested inner blocks, such as if statements.

	- Fixed problem when an array is declared as extern without the size
	  initialised, eg. 'extern char buf[]'. In this case the variable
	  may not have shown up in the MPLAB watch window.

	- Fixed problem where missing or wrong CONFIG bits were programmed.