6502 Cross-Development Languages and Tools
List of programming languages targeting the 6502 microprocessor (with an emphasis on Commodore 8-bit computers), which are hosted on another system. A separate list of native Commodore languages is also available. You Would also find info related to 6502, 65C02, 65816, MOS, Western Design Center, cross assemblers, cross compilers, Commodore 64, software, languages and much more.

Amsterdam Compiler Kit (ACK)
An integrated collection of programs designed to simplify the task of producing portable (cross) compilers and interpreters.

ASxxxx Cross Assemblers
Series, with companion linker, coded in C, for microprocessor series: 6800(6802/6808), 6801(hd6303), 6804, 6805, 68HC08, 6809, 68HC11, 68HC12, 68HC16, 8051, 8085(8080), z80(hd64180), H8/3xx, DS8xCxxx, 6500.

GameBoy Developer's Kit (GBDK)
A set of tools that enable to develop programs for the Nintendo GameBoy system, either in C or in assembly. GBDK includes a set of libraries for the most common requirements and generates image files for use with a real GameBoy or with an emulator like VGB or no$gmb. You Would also find info related to nintendo gameboy development compiler C z80 free libraries assembler linker and much more.

GCC Toolchain for MSP430
Port freeware GNU tools to msp430 architecture. Cross compiler for msp430.

Quetzalcoatl
Cross compiler for 6502 processors, runs on Linux, Win32; can compile and link programs written in subset of ANSI C, Assembly, 1983 UPL language, or any mix thereof; can output programs for Commodore VIC-20, 64.

TML2
cross compiler tools for Z80 target. You Would also find info related to Z80, z80, Z180, z180, Z80180, z80180, shareware, emulator, TML2, compiler, download, executables and much more.

WinAVR
A suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. It includes the GNU GCC compiler.