v0.2.0

Added

• semihosting feature: enables clean QEMU termination via semihosting SYS_EXIT calls, preventing hanging processes when running cargo test under QEMU

Fixed

• newlib: times() syscall now returns elapsed time in microseconds, improving std::time::Instant from 1 s resolution to 1 µs resolution (this is a Rust-internal convention with the standard library's newlib PAL; requires GNAT Pro for Rust 27 or later)