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Fix usage of live in opcodes and no longer preserve registers by default #795

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Jan 28, 2024
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Fix usage of live in opcodes and no longer preserve registers by default #795

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4 changes: 4 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

## [0.6.0-beta.0] - Unreleased

### Fixed

- Fixed interpretation of live for opcodes, thus altering GC semantics for nifs. See also [UPDATING](UPDATING.md).

### Added
- Added `esp:get_default_mac/0` for retrieving the default MAC address on ESP32.
- Added support for `pico` and `poci` as an alternative to `mosi` and `miso` for SPI
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7 changes: 7 additions & 0 deletions UPDATING.md
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Expand Up @@ -6,6 +6,13 @@

# AtomVM Update Instructions

## v0.6.0-alpha.1 -> v0.6.0-beta.0

- Registers are no longer preserved by GC by default when invoking nifs, as part of the fix
of interpretation of the emulator of the live parameter of many opcodes. NIFs may need
to call `memory_ensure_free_with_roots` and pass their arguments are roots, instead of
`memory_ensure_free` or `memory_ensure_free_opt`.

## v0.6.0-alpha.0 -> v0.6.0-alpha.1

- **Libraries (or boot .avm file) from latest version must be used**. Standard library from
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