- Fix sceGuBreak
- Fix sceGuContinue
- Fix sceGuDrawArrayN
- Fix sceGuMorphWeight
- Remove unnecessary 0xffffff as it is done by sendCommandi
- Improve the name of some parameters
- Create and use GU_MAX_STATUS
- Remove magic numbers in `sceGuMaterial`
- Remove magic numbers in `sceGuMorphWeight`
- Remove magic numbers in `sceGuSetMatrix`
- Remove magic numbers in `sceGuSignal`