Description

This card has all the functionality of the TMS9918, and all the additional graphics modes of the V9938.  After the unlock sequence, the card morphs into an F18A with all layers including bitmap; the F18A GPU is also fully implemented.

Features:

• Text 40, bitmap, and graphics, of TMS9918A for compatibility with existing software.
• Text 80 column
• Graphics
• Bitmap
• Multicolor
• G3 Same as G2 + additional sprites per line.
• G4 256×192/212  4BPP full bitmap mode
• G5 512×192/212 2BPP full bitmap mode
• G6 512×192/212  4BPP full bitmap mode
• G7  256×192/212 8BPP full bitmap mode
• V9938 Vertical scroll
• All hardware acceleration of the V9938 in all bitmap modes.
• Also adds accelerated font blitting.
• 192K video RAM 128kb base, and 64kb extended.
• F18A Layer 1, Layer 2, and Bitmap layer.
• F18A horizontal, and vertical scroll.
• VGA output

Tested with:

• The majority of the software that Cadd distributes with PC99W.
• Mario Bros
• Karts
• Alex kidd
• Scramble