Yamaha V9958

The Yamaha V9958 is a Video Display Processor used in the MSX2+ and MSX turbo R series of home computers and the "TIM" upgrade to the TI-99/4A. Also known as the MSX-Video chip, it is the successor to the Yamaha V9938. The main new features are three graphical YJK modes with up to 19268 colours and horizontal scrolling registers. The V9958 was not as widely adopted as the V9938.
Specifications.
Feature changes from the V9938.
The following features were added to or removed from the Yamaha V9938 specifications:
MSX-specific terminology.
On MSX, the screen modes are often referred to by their assigned number in MSX-Basic. This mapping is as follows: