Commodore Amiga - Page 269

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BLTIH>D
·066
W A
Blitter modulo for destination D
NAME ADD
R/W emp
FUNCTION
·068
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·06.\
BLTDDAT & '000 ER A Blitter destination early read (dllDlllY address)
·06C
DMACONR '002
R A P !»fA control (and blitter status) read
·06E
VPOSR '004 R A Read vert most signif. bit (and frame flop) BLTCDAT
% ·070 W A
Blitter source C data register
VHPOSR '006
R
A
Read vert and horiZ. position of beam
BLTBDAT
% ·072 W A
Blitter source B data register
DSKDI\TR & '008
ER
P
Disk data early read (dllDlllY address)
BLTADAT
% ·074 W A
Blitter source A data register
JOYODAT
'OOA
R D Joystick-mouse 0 data (vert,horiz)
·076
JOYlDAT 'OOC R D
Joystick-mouse 1 data (vert,horiz)
·078
CLXDAT 'OOE
R
D
Collision data register (read and clear)
·07A
ADKCONR '010 R P
Audio, disk control register read
·07C
POTODAT
'012
R P Pot counter pair 0 data (vert,horiz)
DSKSYNC
·07E
R
P
Disk sync pattern register for disk
POTIDAT
'014
R P
Pot counter pair 1 data (vert,horizl
read
POTOOR '016 R P Pot port data read (formerly POTINP
COPlLCH
+
080
W A
Coprocessor first location register
SERDA'lR
'018
R
P
Serial port data and status read
(high 3 bits)
DSKBY'lR
'OlA
R P Disk data byte and status read
COPlLCL
+ 082 W A
Coprocessor first location register
INTENAR 'OlC R P
Interrupt enable bits read
(low 15 bits)
IN'lREQR
'OlE
R P
Interrupt request bits read
COP2LCH
+
084 W A
Coprocessor second location register
DSKPTH + '020
W
A
Disk pointer (high 3 bits)
(high 3 bits)
DSKPTL + '022 W A Disk pOinter (low 15 bits)
COP2LCL
+
086 W A
Coprocessor second location register
DSKLEN '024
W
P
Disk length
(low 15 bits)
DSKDAT
& '026
W P Disk !»fA data write
COPJMI?l
088 S A
Coprocessor restart at first location
REFP'lR & '028 W A
Refresh pOinter
COPJMI?2
OSA
S A
Coprocessor restart at second location
VPOSW '02A
W A Write vert most signif. bit (and frame flop)
COPINS
08C W A
Coprocessor instruction fetch identify
VHPOSW
'02C
W
A
Write vert and horiz position of beam
DIWS'lRT
08E W
A
Display window start (upper left
COPCON '02E
W
A
Coprocessor control register (CDANG)
vert-horiz position)
SERDAT
'030
W P Serial port data and stop bits write
DIWSTOP
090 W A
Display window stop (lower right
SERPER '032
W P Serial port period and control
vert. -horiz. position)
POTOO '034
W P Pot port data write and start
DDFS'lRT
092 W A
Display bit plane data fetch start
JOYTEST
'036
W
D Write to all four joystick-mouse counters at once
(boriz. position)
S'lREQU & '038
S D Strobe for horiz sync with VB and EQU
DDFSTOP 094
W A
Display bit plane data fetch stop
S'lRVBL & *OJA S D Strobe for horiz sync with VB (vert. blank)
(horiz. position)
STRHOR & '03C
S DP Strobe for horiz sync
DMACON
096 W ADP
!»fA control write (clear or set)
SlRLONG
& 'OJE
S D
Strobe for identification of long horiz.
line. CLXCON
098
W
D
Collision control
BLTCONO
·040
W
A
Blitter control register 0
INTENA
09A W
P
Interrupt enable bits (clear or
BLTCONI
·042
W
A
Blitter control register 1
set bits)
BLTAFWM
·044
W
A
Blitter first word mask for source A
IN'lREQ
09C
w P
Interrupt request bits (clear or
BLTALWM
·046
W A Blitter last word mask for source A
set bits)
BLTCPTII
+ ·048
W
A
Blitter pointer to source C (high 3 bits)
ADKCON
09E W P
Audio, disk, UART control
BLTCPTL
+ ·04A
W
A
Blitter pointer to source C (low 15 bits)
AUDOLCH
+ OAO W A
Audio
channel 0 location (high 3 bits)
BLTBPm
+ ·04C
W A Blitter pointer to source B (high 3 bits)
AUDOLCL
+ 0A2 W A
Audio
channel 0 location (low 15 bits)
BLTBPTL
+ ·04E
W A Blitter pointer to source B (low 15 bits) AUDOLEN OM W
P
Audio
channel 0 length
BLTAPm
+ "050
W A Blitter pointer to source A (high 3 bits) AUDOPER 0A6 W
P
Audio
channel 0 period
BLTAPTL
+ ·052
W
A Blitter pointer to source A (lOW 15 bits) AUDOVOL OAS
W P
Audio
channel 0 volume
BLTDPTII
+ "054 W
A
Blitter pointer to destination D (high 3 bits~
AUDODAT &
OM W P
Audio
channel 0 data
BLTDPTL
+ ·056
W
A Blitter pointer to destination D (low 15 bits OAC
BLTSIZB
"058
W A Blitter start and size (window wldth, height)
OAB
"OSA
AUDlLCH
+ OBO W A
Audio
channel 1 location
(high 3 bits)
"OSC
AUDlLCL
+ OB2 W A
Audio
channel 1 location
(low 15 bits)
"05E
AUDlLEN 0B4 W
P
Audio
channel 1 length
BL'J."CK)[)
"060 W
A
Blitter modulo for source C
AUDlPER
0B6 W
P
Audio
channel 1 period
to
BLTBMOD
"062
W A
Blitter modulo for source B
AUD1VOL 0B8
W P
Audio
channel 1 volume
BLTAKX>
"064 W A Blitter modulo for source A
AUDlDAT &
OBA W P
Audio
channel 1 data
OBC
c.,)
OBE