BLTSIZV

         Bits for BLTSIZV:
         BIT# 15 14  13  12  11  10  09 08 07 06 05 04 03 02 01 00
               x h14 h13 h12 h11 h10 h9 h8 h7 h6 h5 h4 h3 h2 h1 h0


         Bits for BLTSIZH:
         BIT# 15 14  13  12  11  10  09 08 07 06 05 04 03 02 01 00
               x  x   x   x   x  w10 w9 w8 w7 w6 w5 w4 w3 w2 w1 w0


         These are the blitter size regs for blits larger than the earlier
         chips could accept. The original commands are retained for
         compatibility. BLTSIZV should be written first, followed by BLTSIZH,
         which starts the blitter. BLTSIZV need not be rewritten for
         subsequent bits if the vertical size is the same. Max size of
         blit 32k pixels * 32k lines, x's should be written to 0 for
         upward compatibility.


SEE ALSO: BLTSIZE
          Blitter programming