Atari 400 - Page 312

310 User's Handbook to the Atari 400/ 800 Computers
709
COLOR1
Co l or register 1.
710
COLOR2
Col or register 2.
711
COLOR3
Co l or register 3.
712
COLOR4
Co l or register 4.
Cassette Buffer
61
BPTR
This
address contains a
pointer to the n ext l ocatio n
to be accessed in the cas-
setted
buffer.
63
FEOF If this address contains a 0,
an end-of-file has not been
encountered. A va l ue of 0
indicates an end-of -file has
been encountered.
649
WMODE This address indicates
the
present cassette operat i on
(0 = read; 128 = write).
650
BLIM
This address indicates the
size in bytes of the cassette
buffer (0-128).
1021-
CASBUF These addresses are used as
1151 the cassette buffer.
Printer Addresses
29
PBPNT
This address contains a
pointer to the cu rrent l oca-
ti on in the printer buffer.