Small Device C Compiler

The Small Device C Compiler (SDCC) is a free-software, partially retargetable^[1] 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.^[2][3][4]

Small Device C Compiler

Developer(s)	Sandeep Dutta and others
Stable release	4.4.0 / January 29, 2024; 15 months ago (2024-01-29)
Repository	sourceforge.net/p/sdcc/code/HEAD/tree/
Operating system	Microsoft Windows, macOS, Linux
Type	C compiler
License	GPL
Website	sdcc.sourceforge.net

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^[5]
• 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.^[6][7]
• Padauk PDK13.

Obsolete:

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

See also

• Free and open-source software portal

• Z88DK - C compiler for Z80-based systems
• cc65 - C compiler for 6502/65C02 systems