cpy

cpy is a minimal, naive C to Apple Silicon ARM64 compiler.

Example

from cpy import compile

code = """
int main() {
    return 2 * 3;
}
"""
print(compile(code))

Output (ARM64 Assembly)

.global _main
.align 2

_main:
    str lr, [sp, #-32]!
    mov w8, #2
    str w8, [sp, #4]
    mov w8, #3
    str w8, [sp, #8]
    ldr w8, [sp, #4]
    ldr w9, [sp, #8]
    mul w8, w8, w9
    str w8, [sp, #12]
    ldr w0, [sp, #12]
    ldr lr, [sp]
    add sp, sp, #32
    ret

Running the Compiled Code

If you're on an Apple Silicon Mac, you can run the generated assembly using:

from test.test_e2e import debug

print(debug(code))  # Outputs: 6

Features

✅ Functions
✅ if/else statements
✅ while statements
✅ Compound statements
✅ Declaration, scope & reference validation
✅ Integer arithmetic
✅ Tests for each step, including end-to-end program execution.
🔜 More soon!