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registers1_print!!
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Text File
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1980-01-09
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2KB
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61 lines
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
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
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