Here is a short strange check list of tips to greatly improve your chances of obtaining a helpful response. Attach the code you are compiling with sdcc. It should compile "out of the box". Snippets must compile and must include any required header files, etc. Incomplete information will hamper your chance of a timely response. Specify the exact command you use to run sdcc, or attach your makefile. Specify the sdcc version (type "sdcc -v your platform and operating system. Provide an exact copy of any error message or incorrect output.
Sdcc is known to compile from the source code also on the following platforms: Linux - x86_64 Linux - alpha linux - ibm power5 Netbsd - i386 Netbsd - sparc64 Freebsd - i386 sun solaris - i386 sun solaris - sparc Rasbian (Debian for Raspberry. Please consider downloading one of the snapshot builds if you have run across a bug, or if the above release is more than two months old. The latest development source code can be accessed using Subversion. The following will fetch the latest sources: svn checkout twist svn:t/p/sdcc/code/trunk/sdcc sdcc. Will create the sdcc directory in your current directory and place all downloaded code there. You can browse the subversion repository here. Before reporting a bug, please check your sdcc version and build date using the -v option, and be sure to include the full version string in your bug report. For example: sdcc/bin sdcc -v sdcc :.3.8 (Feb 10 2004) (unix) Support for sdcc sdcc and the included support packages come with fair amounts of documentation and examples. When they aren't enough, you can find help in the places listed below.
Linux - x86, microsoft Windows - x86, microsoft Windows - x86_64 and Mac os x are the primary, so called "officially supported" platforms. Sdcc compiles natively on Linux and Mac os x using gcc. Windows release and snapshot builds are made by cross compiling to mingw32 on a linux host. Windows 9x/NT/2000/XP/Vista/7/8 users are recommended to use cygwin ( m/cygwin/ ) or may try the unsupported Microsoft Visual C build scripts. Downloading sdcc see the sourceforge download page for the last released version including source and binary packages for Linux - x86, microsoft Windows - x86, microsoft Windows - x86_64 and Mac os x - ppc and i386. Major Linux distributions take care of sdcc installation packages themselves and you will find sdcc in their repositories. Unfortunately sdcc packages included in Linux disributions are often outdated. In this case users are encouraged to compile the latest official sdcc release or a recent snapshot build by themselves or download the pre-compiled binaries from sourceforge download page.
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Faster register allocator reduces compilation time by about 25 (does not apply had to mcs51, ds390 which use a different register allocator). Execution count writers guessing and use of execution count guesses in stm8 register allocation improve optimization for code speed. Changed getchar prototype from char getchar(void) to int getchar(void) to improve standard-compliance and allow error reporting. Type qualifiers in array parameters (iso c99). Static in array parameters (iso c99). Improved support for dwarfv2 debug info in elf output (stm8, hc08, s08). Various improvements in z80/z180/gbz80/tlcs90/r2k/r3ka code generation, in particular for mixed 16-/32-bit code.
_z88dk_fastcall function pointer support for -reserve-regs-iy. Tlcs90 is now a fully supported backend, no longer work in progress. data-seg to specify the segment for non-initialized data in the z80, z180, gbz80, tlcs90, r2k and r3ka backends. New methods to obtain tree-decompositions of control-flow graphs improve compilation time / code-quality trade-off (when sdcc is built with support for the treedec library). Additional general utility functions: qsort strtol strtoul. Numerous other new features and bug fixes are included as well. You can download the release from: t/projects/sdcc/files/ What Platforms are supported?
Full _Bool support for mcs51 and ds390 backend (now _Bool is fully supported in sdcc regardless of backend). Additional wide character library functions: mbstowcs and wcstombs btowc and wctob wcscmp wcslen. Changed prng for rand from lcg to xorshift to improve speed and quality. Support for Small-C calling convention on the callee side (i.e. Function definitions with Small-C calling convention).
The obsolete macro sdcc (which used to contain the version number encoded as an integer) has finally been removed (except for mcs51, where it will survive a little bit longer for silabs ide compability). New devices supported by simulator (tlcs-90, and the 517, F380, xc88x, ds320 mcs51-variants along with dual-dptr and mdu support). Interrupt) and I/O support in stm8 simulator. Simulator support for banked memory and bit banding. Various simulator improvements: Conditional breakpoints, breakpoints by function name from sdcc debug output, omf input, vcd output, simulator interface for simulated program and new operators in expressions. Deprecated -nojtbound and the corresponding pragma.
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As of December 1999, the code was moved to sourceForge where all the "users turned developers" can access the same source tree. Sdcc is constantly being updated with all the users' and developers' input. News A new release of sdcc, the portable optimizing compiler for 8051, ds390, Z80, Z180, rabbit 2000, gbz80, tlcs-90, hc08, stm8 and pic microprocessors is now available ( t ). Sources and documentation are available (for.8.0 we are aiming to bring back binary releases). Sdcc.7.0 feature list: Changed putchar prototype from void putchar(char) to int putchar(int) to improve standard-compliance and allow error reporting. Various speed improvements in stm8 backend - dhrystone score more than doubled, resulting in sdcc achieving the highest Dhrystone scores among stm8 c implementations. Various speed improvements for multiplications resulting in sdcc achieving the highest Coremark review scores among stm8 c implementations. Declarations in for loops (iso c99). 64-bit integers (long long) for the mcs51 and ds390 backends (now long long is fully supported in sdcc except for the pic14 and pic16 backends).
Adaptable mcu specific backend that should be well suited for other 8 art bit mcus independent rule based peep hole optimizer. A full range of data types: char ( 8 bits, 1 byte short ( 16 bits, 2 bytes int ( 16 bits, 2 bytes long ( 32 bit, 4 bytes long long ( 64 bit, 8 bytes float (4 byte ieee) and _Bool / bool. The ability to add inline assembler code anywhere in a function. The ability to report on the complexity of a function to help decide what should be re-written in assembler. A good selection of automated regression tests. Sdcc was originally written by sandeep Dutta and released under a gpl license. Since its initial release there have been numerous bug fixes and improvements.
sdcc run-time libraries ; (gplle). Pic device libraries and header files are derived from Microchip header (.inc) and linker script (.lkr) files. Microchip requires that "The header files should state that they are only to be used with authentic Microchip devices" which makes them incompatible with the gpl. Gcc-test regression tests, derived from gcc-testsuite ; (no license explicitely specified, but since it is a part of gcc is probably gpl licensed) packihx ; (public domain) makebin ; (zlib/libpng License) sdcc C compiler, originally written by sandeep Dutta; (GPL). Some of the features include: extensive mcu specific language extensions, allowing effective use of the underlying hardware. A host of standard optimizations such as global sub expression elimination, loop optimizations (loop invariant, strength reduction of induction variables and loop reversing constant folding and propagation, copy propagation, dead code elimination and jump tables for 'switch' statements. Mcu specific optimizations, including a global register allocator.
Eu data subject Requests. Sdcc is a retargettable, optimizing Standard C (ansi c89, iso c99, iso c11) compiler suite that targets the, intel mcs51 based microprocessors (8031, 8032, 8051, 8052, etc.), maxim (formerly, dallas dS80C390 variants, Freescale (formerly, motorola ). HC08 based (hc08, s08), zilog Z80 based mcus (z80, z180, gbz80, rabbit 2000/3000, rabbit 3000a, tlcs-90) and, sTMicroelectronics stm8. Work is in progress on supporting the. Microchip pic16 and, pIC18 targets. It can be retargeted for other microprocessors. Sdcc suite is a collection of several components derived from different sources with different foss licenses. Sdcc compiler suite include: sdas and sdld, a retargettable assembler and linker, based on, asxxxx, written essay by Alan Baldwin; (GPL).
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