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- DMACON $096 (w) (r $002) INTREQ $09c (w) (r $01e)
- ------------------------ INTENA $09a (w) (r $01c)
- ------------------------
- 15 set/clr 15 set/clr
- 14 blitter busy 14 int enable (mainsw)
- 13 blitter zero 13 cia-b or extens.port
- 12 - 12 disk synchr
- 11 - 11 rbf full
- 10 bltpri 10 audio 3
- 9 dma enable (mainsw) 9 audio 2
- 8 bitplane dma 8 audio 1
- 7 copper dma 7 audio 0
- 6 blitter dma 6 blitter ready
- 5 sprite dma 5 vert blank
- 4 disk dma 4 copper
- 3 audio 3 3 cia-a or extens.port
- 2 audio 2 2 soft int
- 1 audio 1 1 disk dma ready
- 0 audio 0 0 tbf empty
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-
- BPLCON0 $100 (w) BPLCON1 $040 (w)
- ---------------- ----------------
- 15 hires 15/8 -
- 14 bpu bit 2 7/4 pos even planes
- 13 bpu bit 1 3/0 pos odd planes
- 12 bpu bit 0
- 11 HAM BPLCON2 $104 (w)
- 10 dual playf. ('dpf') ----------------
- 9 videoport 15/7 -
- 8 genlock 6 1: plf2 before plf1
- 7 - 5/3 priority plf2 (see table)
- 6 - 2/0 priority plf1 (see table)
- 5 -
- 4 - 000 : plf s0/1 s2/3 s4/5 s6/7
- 3 lightpen 001 : s0/1 plf s2/3 s4/5 s6/7
- 2 interlace 010 : s0/1 s2/3 plf s4/5 s6/7
- 1 ext.sync. 011 : s0/1 s2/3 s4/5 plf s6/7
- 0 - 100 : s0/1 s2/3 s4/5 s6/7 plf
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- BLTCON0 $040 (w) BLTCON1 $042 (w)
- ---------------- ----------------
- 15 barrelshift A 15 barrelshift B
- 14 " 14 "
- 13 " 13 "
- 12 " 12 "
- 11 use A 11 -
- 10 use B 10 -
- 9 use C 9 -
- 8 use D 8 -
- 7 ABC 111 7 -
- 6 ABc 110 6 -
- 5 AbC 101 5 -
- 4 Abc 100 4 excl.fill
- 3 aBC 011 3 incl.fill
- 2 aBc 010 2 f1 carry in
- 1 abC 001 1 1: descending mode
- 0 abc 000 0 1: line mode
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