Add sign extension to 32-bit for unaligned OS_8 and OS_16 types (to try to solve #40102)
Summary
Fix bug report 40102
System
- Operating system: Any
- Processor architecture: aarch64
- Device: Any
What is the current bug behavior?
test/units/system/tincdec.pp test fails.
What is the behavior after applying this patch?
test/units/system/tincdec.pp completes successfully.