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Actually I wasn't able to do it also with Bebbo's GCC fork. Never used Nim before so I might be doing something wrong though. I wish retro Amiga had Rust supp

Actually I wasn't able to do it also with Bebbo's GCC fork. Never used Nim before so I might be doing something wrong though. I wish retro Amiga had Rust support. I've briefly skimmed what would be necessary to do, based on the rust-mos (Rust for commodore-64 fork), but I'm too weak in LLVM internals to actually do it.

actionfromafar 11mo ago
Rust --> WASM --> Wasm2C --> Bob's your uncle. Maybe.
archargelod 11mo ago
> Never used Nim before so I might be doing something wrong though. With Nim on weird targets you usually want: - OS target = any - Memory Management = ARC - malloc instead of default Nim allocator - turn off signal handler (if not POSIX) - disable threads (most of the time) Then look at how C is compiled and copy all compiler+linker flags to your Nim configuration. Here's an absolute minimal `config.nims` I used to compile Nim for C64 with LLVM-MOS[1] toolchain: import std/strutils --cc:clang --clang.exe:"mos-c64-clang" --os:any --cpu:avr --mm:arc --threads:off --define:usemalloc --define:noSignalHandler let args = [ "-isystem $PWD/../mos-platform/c64/include", "-I$PWD/../mos-platform/c64/asminc", "-L$PWD/../mos-platform/c64/lib", "-mlto-zp=110", "-D__C64__", "-isystem $PWD/../mos-platform/commodore/include", "-I$PWD/../mos-platform/commodore/asminc", "-L$PWD/../mos-platform/commodore/lib", "-D__CBM__", "-isystem $PWD/../mos-platform/common/include", "-I$PWD/../mos-platform/common/asminc", "-L$PWD/../mos-platform/common/lib", "--target=mos", "-flto", "-Os", ].join(" ") switch("passC", args) switch("passL", args) Nim side was easy, because I have already compiled Nim to WASM at that point and the flags are similar. Hard part was figuring out the C compiler flags: e.g. cmake structure and why compiler complains about missing symbols, when they're not missing (answer: include/lib order is very important). [1] https://github.com/llvm-mos/llvm-mos https://github.com/llvm-mos/llvm-mos

actionfromafar 11mo ago

Rust --> WASM --> Wasm2C --> Bob's your uncle. Maybe.

archargelod 11mo ago

> Never used Nim before so I might be doing something wrong though. With Nim on weird targets you usually want: - OS target = any - Memory Management = ARC - malloc instead of default Nim allocator - turn off signal handler (if not POSIX) - disable threads (most of the time) Then look at how C is compiled and copy all compiler+linker flags to your Nim configuration. Here's an absolute minimal `config.nims` I used to compile Nim for C64 with LLVM-MOS[1] toolchain: import std/strutils --cc:clang --clang.exe:"mos-c64-clang" --os:any --cpu:avr --mm:arc --threads:off --define:usemalloc --define:noSignalHandler let args = [ "-isystem $PWD/../mos-platform/c64/include", "-I$PWD/../mos-platform/c64/asminc", "-L$PWD/../mos-platform/c64/lib", "-mlto-zp=110", "-D__C64__", "-isystem $PWD/../mos-platform/commodore/include", "-I$PWD/../mos-platform/commodore/asminc", "-L$PWD/../mos-platform/commodore/lib", "-D__CBM__", "-isystem $PWD/../mos-platform/common/include", "-I$PWD/../mos-platform/common/asminc", "-L$PWD/../mos-platform/common/lib", "--target=mos", "-flto", "-Os", ].join(" ") switch("passC", args) switch("passL", args) Nim side was easy, because I have already compiled Nim to WASM at that point and the flags are similar. Hard part was figuring out the C compiler flags: e.g. cmake structure and why compiler complains about missing symbols, when they're not missing (answer: include/lib order is very important). [1] https://github.com/llvm-mos/llvm-mos https://github.com/llvm-mos/llvm-mos