TASKING C51 Compiler

The compiler package consists of the optimizing ANSI C compiler, macro assembler, linker/locator, libraries, CrossView 51 simulator and EDE our Windows based embedded development environment. The TASKING 8051 C compiler has been designed and built specifically for the microcontroller architecture of the Intel 8051. This means that you can access all the special features of the Intel 8051 in C, without violating the ANSI standard, such as: Multiple address spaces (with full pointer support), Bit memory, Special function registers (I/O ports), Interrupt functions using bank switching, User in-line C functions (create your own in-line functions) and much more.
You can assign each C variable explicitly to a specific memory type: _data, _bdat, _idat, _pdat, _xdat, _rom. The compiler supports 1 and 2 byte pointers and has very efficient pointer arithmetic and dereferencing. It uses extremely fast parameter passing between functions and automatic variables using the CPU registers R2-R7. It allows fast 8-bit arithmetic, including true char and _bit type variables. Powerful data overlaying by linker using the compilerŠs function call graph information stretches the utilization of the scarce internal RAM. The compiler supports 4 different memory models. These models can be used separately or mixed (per function) to ensure the best possible code generation.
The compiler is delivered with libraries for all memory models. The libraries include ANSI C libraries, run time libraries including I/O calls (+ printf), memory management, arithmetic functions and floating point (for both internal and external RAM). Source code is provided for most of the library routines allowing you to tailor the libraries to your specific application.
Third-party support includes interoperability with real time kernels (such as Embedded System Products RTXC51), emulators (such as Ashling, Ceibo, Checkmate, ComAp, HP, Kontron, Lauterbach, Metalink, Nohau, Orion Instruments, Philips, Signum Systems, Sophia Systems) and other tools (Inform FuzzyTECH51, ChipTools ChipView51, Intel ApBUILDER, Aisys DriveWay51).