CE C/C++ Toolchain (v15.0)

v15.0 is a major release!

This version is now built around LLVM/Clang v19 (instead of v15) and the move from the fasmg-based assembling+linking to a GNU binutils/GAS one, for user programs, making the toolchain more maintainable, more standard, more portable, and much faster than before. On top of that foundation, this release expands the runtime and standard library and brings a large round of fixes, optimizations, and automatic tests.

Shout out to @mateoconlechuga , @Sightem , @ZERICO2005, and @calc84maniac for making all this possible!

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Getting Started

Check out the CE C/C++ Toolchain Documentation.

Downloads

Windows: CEdev-Windows.zip
Linux: CEdev-Linux.tar.gz
macOS (intel): CEdev-macOS-intel.dmg
macOS (arm): CEdev-macOS-arm.dmg

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Migration Notes

• Assembly source files must now be written in GNU Assembler syntax and should use .s or .S instead of fasmg-style .asm. The documentation was updated for the new assembly model, so check it out!
• The assembly and link stages now go through GNU as and GNU ld, so ASFLAGS and EXTRA_LDFLAGS now map to the standard binutils tooling.
• Toolchain metadata is now .ld-based, with linker_script.ld for programs.

New Features

• Upgraded the supported compiler stack to LLVM/Clang v19.
• Reworked the build flow around GNU binutils/GAS and added the cedev-obj helper to inspect ELF outputs and generate CRT/libload metadata.
• Added LZ4 decompression routines in the runtime and corresponding lz4 / lz4hc compression modes in convimg.
• Added direct 8ek app output support across the toolchain, including .8ek output, application linker support, application descriptions, and emitted relocations (see APPLICATION makefile flag). Proper installer support for real on-calc app distribution remains outside the toolchain scope for now.
• Expanded libc/CRT/C++ runtime support with strtok_r, strsep, _Complex floating-point helpers, cxa_guard support, improved <fenv.h> / <cfenv> conformance, and constructor/destructor priority handling.
• Add overlap support for gfx_CopyRectangle.

Fixes

• Fixed atexit, on_exit, and _Exit.
• Fixed long-double softfloat ABI issues and additional floating-point corner cases.
• Fixed fgetc / fputc null-stream handling.
• Fixed (v)asprintf behavior for zero-length output.
• Fixed atof(f) return values.
• Fixed LIB_ALLOCATOR and LIB_PRINTF linking, and improved circular LIB_* dependency handling.
• Fixed several application-build issues while bringing .8ek support online.
• Fixed assumptions about the target environment, especially around the __TICE__ define, making the toolchain more usable beyond strictly CE-specific targets.
• Fixed convbin invocation in the top-level libs target.
• Fixed Windows path handling and other tooling issues across convbin and convimg.
• Fixed fontlib_SetFont ignore line spacing parameter option to always ignore.

Improvements

• Made the toolchain's memcpy / memmove the default implementation.
• Added assembly include files for <errno.h> <fenv.h> and <math.h> in the toolchain sources
• Optimized calloc, bss zeroing, strerror, perror, nanoprintf, libload, random, and many CRT integer helper routines.
• Added or improved fallback CRT routines that avoid shadow-register or interrupt-sensitive behavior for several multiplication and division paths.
• Optimized ZX0/ZX7 decompression paths and added LZ4-backed asset workflows.
• Optimized graphx circle routines and text entry points.
• Optimized fatdrvce cluster and sector lookup/traversal.
• Optimized multiply high routines.