Commodore 1581 - Block-Execute Command

from the first location within the buffer, until a RETURN from Subrou
tine (RTS) instruction ends the command.
FORMAT FOR THE BLOCK-EXECUTE COMMAND:
PRINT#15,"B-E:";channel #;drive #;track #;sector #
where "channel #" is the channel number specified when the file into
which the block will be loaded was opened, "drive #" is the drive
number, and "track #" and "sector #" are respectively the track and
sector numbers containing the desired block of data to be loaded into
the file buffer and executed there.
ALTERNATE FORMATS:
PRINT#15,"B-E:";channel #;drive #;track #;sector #
PRINT#15,"B-E.channel #,drive #,track #,sector #"
EXAMPLES:
Assuming you Ve written a machine language program onto Track
1, Sector 8 of a diskette, and would like to run it in buffer number 1 in
disk memory (starting at $0400 hexadecimal, you could do so as fol
lows:
110 OPEN 15,8,15 Open command channel.
120 OPEN 2,8,2,"#1" Open direct access channel to buffer 1.
130 PRINT#15,"B-E:";2;0;l;8 Load Track 1, Sector 8 in it & execute.
140 CLOSE 2 Tidy up after.
150 CLOSE 15
160 END •
USER COMMANDS
Most User commands are intended to be used as machine lan
guage JMP or BASIC SYS commands to machine language programs^
that reside inside the disk memory. However, some of them have
other uses as well. The Userl and User2 commands are used to
replace the BLOCK-READ and BLOCK-WRITE commands, UI re-starts
the 1581 without changing many variables, UJ cold-starts the 1581
almost as if it had been turned off and on again.
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