Yamaha V9938

Yamaha V9938 in an MSX2

The Yamaha V9938 is a Video Display Processor (VDP) used on the MSX2 home computer, as well as on the Geneve 9640 enhanced TI-99/4A clone.

The Yamaha V9938, also known as MSX-Video or VDP (Video Display Processor), is the successor of the Texas Instruments TMS9918 (used in the MSX1 and various other systems). The V9938 was in turn succeeded by the Yamaha V9958.

Specifications

Detailed 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:

Basic mode VDP mode MSX system
Screen 0 (width 40) T1 MSX 1
Screen 0 (width 80) T2 MSX 2
Screen 1 G1 MSX 1
Screen 2 G2 MSX 1
Screen 3 MC MSX 1
Screen 4 G3 MSX 2
Screen 5 G4 MSX 2
Screen 6 G5 MSX 2
Screen 7 G6 MSX 2
Screen 8 G7 MSX 2

External links

V9938 programmer guide http://rs.gr8bit.ru/Documentation/V9938-programmers-guide.pdf

This article is issued from Wikipedia - version of the 3/6/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.