GRCVW=GRCVW, GRCVS=GRCVS
Graphics 2 Alpha Blending Control Register 2
GRCVW | Vertical width of graphics image area. 0 (GRCVW): GRCVW lines. The valid range is 0x010 to 0x3F0. |
GRCVS | Vertical start position of graphics image area. 0 (GRCVS): GRCVS lines. The valid range is 0x002 to 0x3EE. |