riscemu/CHANGELOG.md

Changelog

Upcoming 2.0.6

• Added a very basic libc containing a crt0.s, and a few functions such as malloc, rand, and memcpy.
• Added a subset of the mmap2 syscall (code 192) to allocate new memory
• Refactored the launching code to improve using riscemu from code

Planned:

• Add a floating point unit

2.0.5

• Added unlimited register mode with -o unlimited_regs

2.0.4

• Bugfix: fix a sign issue in instruction parsing for rd, rs, rs format
• Bugfix: respect conf.debug_instruction setting

2.0.3 - 2022-04-18

• Syscalls: cleaned up formatting and added instructions for extensions
• Parser: fixed error when labels where used outside of sections
• Cleaned up and improved memory dumping code
• Fixed a bug with hex literal recognition in instruction parse code
• Fixed bug where wrong parts of section would be printed in mmu.dump()
• Removed tests for bind_twos_complement as the function is now redundant with the introduction of Int32
• Fixed address translation error for sections without symbols
• Changed verbosity level at which start and end of CPU are printed, added prints for start and stack loading

2.0.2

• Added implicit declaration of .text section when a file starts with assembly instructions without declaring a section first
• Fixed a regression where the cpu's exit code would no longer be the exit code of the emulator. Now the emulator exits with the cpu's exit code
• Added the changelog

2.0.1

• Fixed type annotations in parser code that prevented running unprivileged code

2.0.0

• Correct handling of 32 bit overflows and underflows
• Complete revamp of internal data structures
• Completely reworked how assembly is parsed