# picasso Changelog

# v2.5

- The `.gsh` directive has been enhanced to provide full support for all geometry shader operation modes (point, variable-sized primitive and fixed-size primitive). This also effectively separates vertex shader uniform space from geometry shader uniform space.
- The `.out` directive has been enhanced to allow wiring semantics to any arbitrary output register. Additionally the `dummy` semantic was added while the `7` semantic was removed.
- Added auto-insertion of NOP instruction in corner cases involving flow of control instructions, together with the `--no-nop` directive which instead of adding NOPs warns the user about the corner cases.
- Added support for `rgba` and `stpq` in addition to `xyzw`.
- Added an error message for invalid input register use (e.g. `add r0, v1, v2`).
- The operand descriptor allocation algorithm has been enhanced to take into account unused operands.
- The `6` and `7` conditional operators have been removed since they actually do not exist.
- Really corrected MAD instruction encoding.
- Several miscellaneous issues were fixed.

# v2.4

- Corrected MAD instruction encoding.
- Added command line flag for retrieving the picasso version.

# v2.3

- Added `.constfa` for creating floating-point vector constant arrays.
- Fixed `.nodvle` bug.

# v2.2

- Added proper support for the MOVA instruction.
- Added support for inverting the condition in JMPU.
- Fixed `lcnt` bug.

# v2.1

- Fixed input file open error message.
- Fixed `.constf` misallocation bug.

# v2.0

- (**Breaking change**) Command line format changed.
- Added support for assembling multiple shaders (DVLEs) into a single SHBIN.
- Added new directives: `.entry`, `.nodvle`, `.gsh`, `.setf`, `.seti`, `.setb`.
- Added auto-detection of inverted forms of opcodes. (Explicitly using `dphi`, `sgei`, `slti` and `madi` is now deprecated)
- Several miscellaneous bug fixes.

# v1.0

- Initial release.