Write most sig. bits (and frame flop)
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LOF | I6 | I5 | I4 | I3 | I2 | I1 | I0 | LOL | xx | xx | xx | xx | V10 | V9 | V8 |
LOF = Long frame(auto toggle control bit in BPLCON0)I0-I6 Chip identification:I0-I6 Chip identification:
- 8361 (Regular) or 8370 (Fat) (Agnus-NTSC) = 10
- 8367 (Pal) or 8371 (Fat-Pal) (Agnus-PAL) = 00
- 8372 (Fat-hr) (agnushr),thru rev4 = 20 PAL, 30 NTSC
- 8372 (Fat-hr) (agnushr),rev 5 = 22 PAL, 31 NTSC
- 8374 (Alice) thru rev 2 = 22 PAL, 32 NTSC
- 8374 (Alice) rev 3 thru rev 4 = 23 PAL, 33 NTSC
LOL = Long line bit. When low, it indicates short raster line.LOL = Long line bit. When low, it indicates short raster line.V9,10 xx Hires chips only (20,30 identifiers)V9,10 xx Hires chips only (20,30 identifiers)