> I have just dug out an old version of PICC (version 7.85 with 7.86pl2
> patch). I would like
> to know what had been fixed in version 7.87 and subsequent versions (maybe
> up to
> 8.0). I can not find any information in Hitech website.
>
> Does anyone have the release notes for PICC 7.87 and/or slightly later
> version. I will
> guess version 8.00 release notes will be good to have here as well.

Here are the notes from 8.01:

------------------------------------------------------------------------------
				HI-TECH PICC Compiler
			Bug fixes and limitations for v8.01PL3

DATE: 7 November 2002

Monitor www.htsoft.com for information on patches, and/or subscribe to our
announcement mailing list - send email to announce-request@htsoft.com
for more information.
------------------------------------------------------------------------------

Limitations:
===========

-	For Highend devices, a function cannot return a copy of structure
	which resides in ROM.

-	For Highend processors, certain indirect function calls with more than
	one byte of argument may produce incorrect code.

-	The argument list to printf or sprintf should not include function
	calls.  For example, the following will not produce the desired
	result:

printf("x = %f, sin(x) = %f\n", x, sin(x*3.141592/180.0));

	This code demonstrates a workaround:

y = sin(x*3.14592/180.0);
printf("x = %f, sin(x) = %f\n", x, y);

-	The result of the sizeof preprocessor operator when applied to a
	pointer will always return 1. Use of the C sizeof operator will return
	the correct value.

-	Any structure using bitfields within a structure or union cannot be
	initialized. For example, using the following types where a structure
	is a member of the union, initialization of the structure's bitfields
	will generate a compiler error.

typedef struct {
	unsigned    b0:1, b1:1, b2:1, b3:1, b4:1, b5:1, b6:1, b7:1;
} byte_bits;

typedef union {
	byte_bits        bits;
	unsigned char    byte;
} byte_or_bits;

	The following will give a compiler error:

byte_or_bits example = { {1,0,1,1,0,1,0,0 } };

	Instead, use a single value:

byte_or_bits example = { 0b10110100 };


-	Functions which have variables declared within multiple blocks where
	code within the block requires the use of temporary memory may be get
	corrupted when compiled with global optimizations. A work around is
	to move the variable outside of the block.


------------------------------------------------------------------------------

Bugfixes:
========


Command Line Driver:
~~~~~~~~~~~~~~~~~~~

Fixed in version 8.01PL3:

-	When specifying a binary output file, the filename extension
	was incorrectly specified as ".hex". It is now ".bin".

Fixed in version 8.00PL4:

-	Fixed bug when using the -RESROM option and an address of zero.

Parser:
~~~~~~

Fixes in version 8.00PL4

-	An error is now produced if an enumeration member is redeclared.
	Previously this caused the parser to hang or generate erroneous output.

Code Generator:
~~~~~~~~~~~~~~

Fixed in version 8.01

-	Fixed a problem with addition and subtraction of long's when the
	FSR register was involved.

Fixed in version 8.00PL4

-	With certain values using a "long" data type, addition and subtraction
 	could give an inaccurate result. This has been fixed.

Assembler:
~~~~~~~~~

Fixed in version 8.01:

-	Fixed a problem with a code merging optimization when applied to
	volatile objects.

Fixed in version 8.00PL4:

-	Fixed a problem with the ORG directive which was causing a "Bad object
 	file format" error.

-	Fixed problem with IRP directive followed by an assembler comment
	containing whitespace.

Linker:
~~~~~~

Fixed in version 8.01PL1

-	Fixed a bug which may have caused the linker to crash when displaying
	error messages.

Libraries:
~~~~~~~~~

Fixed in version 8.01PL3

-	Fixed a bug in the fast double math routines used by highend devices
	when there was a zero parameter.


Header files:
~~~~~~~~~~~~

Fixed in version 8.01PL3

-	Changed config mask definitions for all midrange/baseline devices so
 	that the config. word canot exceed 3FFFh (midrange) and 0FFFh
	(baseline). Formerly configuration word values that exceeded these
	limits caused problems during hex file download on certain device
programmers.

-	pic12f6x.h: Fixed PWTEN/DIS config mask definitions, also fixed
 	EEPROM macro.

-	pic1672.h: Corrected config mask definitions relating to PWRTE bit.

-	pic1677x.h: Corrected config mask definitions for 16C770 and 16C771
 	devices.

-	pic169xx.h: ADIF/E bit corrected so defined for all devices in this
 	file except the 16C923.

-	pic16f81x.h: Updated PIEx and OSCCON definitions. Volatile
 	declarations added to some SFRs.

Fixed in version 8.00PL4

-	Typo corrected in pic1687x.h which affected PIC16F87xA
 	devices.

------------------------------------------------------------------------------


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