Cross Compilers

mspgcc - GCC toolchain for MSP430
Computers, Programming, Compilers, Cross Compilers - GCC Toolchain for MSP430. Port freeware GNU tools to msp430 architecture.
https://mspgcc.sourceforge.net/
WinAVR : AVR-GCC for Windows
Computers, Programming, Compilers, Cross Compilers - WinAVR. A suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform.
https://winavr.sourceforge.net/