aeabi

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+#### 0.14.0
+
+* **Break:** `copy_u32x8_unchecked` is an `extern "C"` fn now.
+* new cargo feature `aeabi_mem_fns` causes the appropriate functions to be
+  generated. They're still written as `#[naked]` functions, so they require
+  nightly. It turns out that rust has so many implicit memcpy calls that it did
+  make a performance difference.
+
 #### 0.13.3
 
 * Added `TextEntry::to_u16`

Cargo.toml

@@ -11,6 +11,10 @@ default = ["track_caller", "on_gba"]
 track_caller = []
 on_gba = []
 fixed = ["dep:fixed"]
+# Provide the ARM AEABI memory functions, requires Nightly because they're
+# written as naked functions for efficiency. They're `no_mangle` and they're
+# placed in IWRAM.
+aeabi_mem_fns = []
 
 [dependencies]
 voladdress = "1.3.0"

src/lib.rs

@@ -1,4 +1,6 @@
 #![no_std]
+#![cfg_attr(feature = "aeabi_mem_fns", feature(naked_functions))]
+#![allow(unused_mut)]
 #![allow(unused_imports)]
 #![allow(clippy::let_and_return)]
 #![allow(clippy::result_unit_err)]