Atari 800 User Manual

248 User's Handbook to the Atari 400/ 800 Computers
character blocks. If an EOL character is output, the disk buffer
contents will be sent to the diskett e rega rd l ess of whether or not
the buffer is filled. If a PRI NT# statement contains more than one
expression, these will be concatenated unless separated with an
EOL character.
PRINT# statements automatically output an EOL character after
outputting the expressions. Howev er, a comma or semicolon at
the end of a PRI NT# statement suppresses the EOL character.
If the previous PRINT# statement exp ression list ended with a
semicolon, the current PRINT# statement would output its first
character immediatel y after the final character that was output
by the preceding PRINT# statement. If the previous PRINT#
statement expression list e nded with a comma, the current
PRINT# statement would begin output at the next column tab
stop .
Blank spaces
will be placed in the ar ea between the last character
output via PRINT# and the first character output at the next tab
stop
by the current PRINT# statement. Because of the insertion
of these blank spac es, it is advisable not to insert commas in
PRINT# statements us ed for disk output.
The PUT statement can also be used to output data to a disk file.
PUT takes the following configuration:
PUT #channe/, num eric expression
As with PRINT#, the channel specified must be open for output.
The value given in numeric expression is output to the data file.
The value
output will lie between 0 and 255. If the value is not an
integer, it will be rounded to the nearest integer.
If the value specified does not lie between 0 and 255, it will be
output module 256. In other words, 256 would be sent as 0, 257 as
1, 258 as 2, 259 as 3, etc.
Reading From a Data File
The INPUT# and GET statements are used to read data from files

Atari 800 Specifications

General

Processor	MOS Technology 6502
Processor Speed	1.79 MHz
ROM	10 KB
Graphics	ANTIC and GTIA chips
Release Year	1979
Display Resolution	up to 320 x 192
Colors	128 colors
Sound	4 channels
Storage	Cartridge, cassette, floppy disk
Ports	Cartridge, serial, monitor
Operating System	Atari OS