BLTSIZE

Address Name Description DFF058 BLTSIZE Blitter start and size (width, height)

Overview

This register contains the width and height of the blitter operation
(in line mode width must = 2, height = line length). Writing
to this register will start the Blitter, and should be done last,
after all pointers and control registers have been initialized.

Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 H9 H8 H7 H6 H5 H4 H3 H2 H1 H0 W5 W4 W3 W2 W1 W0

H = Height = Vertical lines (10 bits = 1024 lines max)
W = Width = Horiz pixels (6 bits = 64 words = 1024 pixels max)

• Hardware