Small Device C Compiler
C compiler for microcontrollers
From Wikipedia, the free encyclopedia
The Small Device C Compiler (SDCC) is a free-software, partially retargetable[2] 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.[3][4][5]
| Small Device C Compiler | |
|---|---|
| Developers | Sandeep Dutta and others |
| Stable release | 4.6.0[1]
/ June 22, 2026 |
| Operating system | Microsoft Windows, macOS, Linux |
| Type | C compiler |
| License | GPL |
| Website | sdcc |
| Repository | |
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)"[1]
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 PDK15[6]
- 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:
Obsolete:
- AVR microcontrollers used to be a supported target, but was made obsolete by avr-gcc in 2010 (SDCC 3.0.0).
