* Working callcall_00 (modulo gas)
* Add TODO for call depth
* Add TODO for insufficient balance panic
* Add TODO for subcontext gas limit
* Minor
* Minor
* Copy returndata to memory
* PR feedback
* Add new segment and global metadata
* Insert into self-destruct set
* Implement sys_selfdestruct
* PR feedback
* Fix stack underflow
* Forgot that NOT 1 ≠ 0. Added %not_bit macro for that.
* Implement syscalls for BYTE, SIGNEXTEND, SAR, SLT and SGT.
* Implement SDIV and SMOD; minor documentation and tidying.
* Implement EXP.
* Add sys_byte to the syscall jumptable.
* Test suite for signed syscalls.
* Handle `EXIT_KERNEL` "properly".
* Add gas charges; rename label.
* Uppercase all opcodes.
* Add test for BYTE; fix bug in BYTE.
* Calculate and charge gas for calling `EXP`.
* Fix gas calculation for `exponent = 0`.
* Address Jacqui's comments.
* Remove BYTE syscall as it will be implemented natively.
* Oops, forgot to remove this bit.
The old code was outdated in various ways, e.g. it was trying to share code with contract-creation txns, so I would ignore the diff and just look at the new code.
Still a bunch of TODOs left here, like actually saving code that's returned.
* Working linear search
* Working linear search for storage keys
* Macros
* Gas for wextaccount
* Add origin and to to the access list
* Handle precompiles
* Fixes
* Other opcodes
* Access list SLOAD
* Minor
* Add TODO for SSTORE
* Comments
* Clippy
* Minor
* PR feedback: cold_access
* PR feedback: simplify insert_accessed_addresses_no_return macro
* Fix sys_selfdestruct
* Store length in global metadata and store arrays in kernel memory
* Truncate address in all *CALL syscalls
