Release Notes for MSP430-GCC
=============================
Date: 2019-12-13

New features / changes:
----------------------
- Component versions:
    - GCC 8.3.1.25
    - GDB 8.1
    - binutils 2.26
    - Newlib 2.4.0
    - MSPDebugStack 3.14.0.000
    - MSP430 header and support files 1.208
    - MSP430 GDB Agent 8.0.809.0

- Updates to GCC compiler
    - Added latest GCC 8.3 patches.
		- For the full list of improvements to optimizations, compiler messages, new
		  options and more, visit https://gcc.gnu.org/gcc-8/
 	- Added support for indirect autoincrement addressing.
		- GCC will now generate instructions using this addressing mode where
		  appropriate.
		- This addressing mode is supported by MSP430 for the source operand only.
	- MSP430 extended instructions are no longer used to manipulate variables
	  marked with the "lower" or "noinit" attributes.
		- GCC assumes variables with these attribute are always in the lower memory
		region, below address 0x10000.
		- This can reduce code size and improve performance when used with
		-mdata-region={upper,either,none}.
	- Fixed MOVA instructions being generated in the indexed addressing mode for
	  indexes larger than 16-bits.
	- General code generation improvements:
		- Make better use of RLAM and RRAM where possible.
		- Reduce code size when manipulating pointers in the large memory model.
		- Use mspabi library functions to perform widening 16-bit multiplication.
	- Allow variables marked with the persistent attribute to be initialized to 0.
	- Fixed occasional incorrect execution of CRT library code when running programs
	  built with both -fexceptions and -mlarge.
	- Fixed hardware multiply instructions being generated to perform widening
	  multiplication at -O3, when a device specified with -mmcu= has no hardware
	  multiply support.

- Updates to Binutils
    - No changes.

- Updates to Newlib (C Library)
    - Fixed debugging information for the exit() library function.
		- When debugging a program in CCS and reaching exit(), previously there was no
		  debugging information displayed. Now the call frame and name of the function
		  are shown.

- Update to GDB
    - No changes.

- Updates to MSP430 header files
    - No changes.

- Updates to MSPDebugStack
    - No changes.

- Updates to MSP430 GDB Agent
    - No changes.

Known Issues:
---------------
    - The GDB Agent is not able to connect to MSP430L092 target devices.
    - The GDB Agent is not able to connect to RF430FRL15xH target devices.