Move x registers from contexts to schedulers (fix #698)

X registers are saved in context on context switching but are otherwise allocated only once per scheduler thread, thus allowing up to 1024 registers as the compiler allows Signed-off-by: Paul Guyot <pguyot@kallisys.net>
atomvm · Nov 22, 2023 · e08480b · e08480b
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed changed default to `AVM_USE_32BIT_FLOAT=on` for STM32 platform to enable use of single precision hardware FPU on F4/F7 devices.
 - Fixed a bug where emscripten `register_*_callback/1` functions would use x[1] as second argument
 - Fixed interpretation of live for opcodes, thus altering GC semantics for nifs. See also [UPDATING](UPDATING.md).
+- Fixed a bug where the VM would crash when code used more than 16 x registers.
 
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