- Sign extend values read using LH
- Add conversion functions to represent Signed/Unsigned 16-bit ranges
- Add overflow and truncation functions for 16-bit ranges
- Sign extend imm value in ADD(U)
- Add component overflow and truncation to ADD/SUB functions
- Construct new value in logic operators where result using inputs is undefined
- Return a valid W component from logic operators (if either input has one)
- Compare against high value (y), then low value (x) in less than operators
- Use doubles and implement overflow for Multiply operations to try to increase accuracy
- Use unsigned values in both MUL and DIV operations to make output as accurate as possible
- Implement several variants of shift operators. Trying both arithmetically correct and more analytical approaches with varying success.
Debug updates
- Added ability to force all values to be equal to low precision values before operating on them
- Added feature to test output of operations against a tolerance and print only those which fail
GPU updates
- Colour vertices with valid XY coordinates but no W as cyan to make them easier to spot
- Remove cyan colouring for stale vertices (wasn't useful)
- Added ability to skip debug rendering when needed (like seeing the output of offscreen rendering applied to a sprite).
- Added new mode which shows primitive type
Validity of a pgxp value can now be set for any of four components using individual bit flags. This also allows the potential expansion of more flag data for each component.
- Change processor transfer functions to use take both source and destination values
- Add enum values to all debug functions to double check instructions are correct
- Temporarily store instruction codes in interpreter wrappers as these are sometimes changed by branching
- Change recompiler wrapper functions to store register values in global variables in case they're changed by the original function
- Change PGXP integration to use wrapper functions
- Use modified function lookup tables to call wrappers or default funnctions based on mode
- Implement wrappers for interpreter too, recompiler sometimes calls interpreter functions
- Add UI elements for selecting CPU modes
- Only call precision version of NCLIP in modes where there are not going to be stale vertices in GTE registers
- Added support for CP0 co-processor functions
- Improve support for CPU functions (still broken in many games)
- Improved debug output to show values for inputs before they're modified
GPU plugin
- Ignore stale vertices (occurs when CPU mode no longer writes to memory)
- Add Cyan vertex colouring for stale vertices
- Restructured project to base interface on PSX instructions
- Support for all relevant CPU arithmetic and logic instructions
- Debug output available via deferred PGXP calls
- Remove most dependencies on PCSXR
- Still very much a work in progress (lots of errors)
- Add extra debug information to GPU plugin (w values)
iCatButler