Small Device C Compiler

The Small Device C Compiler (SDCC) is a free-software, partially retargetableRainer Leupers, Peter Marwedel: "Retargetable Compiler Technology for Embedded Systems: Tools and Applications", page 126. Springer, 2001 C compiler for 8-bit microcontrollers. It is distributed under the GNU General Public License. The package also contains an assembler, linker, simulator and debugger. SDCC is a popular open-source C compiler for microcontrollers compatible with Intel 8051/MCS-51."Porting Contiki Operating System to RIEST2430" by Juan Wang, Wei Ma, and Dan Liu, published in "Emerging Intelligent Computing Technology and Applications", 2012, p. 383: "Due to the 8051 MCU’s unique characteristics, there are only a handful of toolchains available. The most noteworthy open source solution is the Small Device C Compiler (SDCC)."Lewin Edwards "Open-Source Robotics and Process Control Cookbook: Designing and Building Robust, Dependable Real-time Systems", 2005, p. 15: "Worse still, the only halfway decent open-source C compiler for the 8051 (sdcc) is exactly that—only halfway decent.": "I personally prefer to use the free compiler package, sdcc. This is unquestionably the poor man's choice of 8051 C compilers, ... in any case, sdcc is perfectly adequate for hobbyist, low-volume and/or educational projects."

Version 4.6.0 added e.g. "C2y _Countof operator", octal, and if-declaration, "Conditional operator with omitted second operand (originally a GNU extension)"; C23 compound literals with storage class specifiers and "C23 constexpr (mostly)"

Supported hosts Sources, documentation, and binaries are available for Linux (32-bit and 64-bit), macOS (PPC and 64-bit), and Windows (32-bit and 64-bit).

Supported targets

The following include binary compatible derivatives: Intel 8031, 8032, 8051, 8052; Maxim/Dallas DS80C390; C8051 Motorola/Freescale/NXP 68HC08 and S08 Padauk PDK14 and PDK15Padauk website Sharp SM83, the CPU found in the Nintendo Game Boy LR35902 SoC STMicroelectronics STM8 Zilog Z80, Z180, eZ80 in Z80 mode; Rabbit Semiconductor 2000, 2000A, 3000, 3000A, 4000, 6000; Toshiba TLCS-90; Z80N (ZX Spectrum Next processor), R800. MOS Technology 6502, WDC 65C02.

Work in progress: Microchip PIC16 and PIC18.Setting up the free compiler SDCC at MPLABX, Google Sites Padauk PDK13.

Obsolete: AVR microcontrollers used to be a supported target, but was made obsolete by avr-gcc in 2010 (SDCC 3.0.0).

Small Device C Compiler

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