Commodore VIC-20 - Page 49

40 GOSUB 1000
50
PRINT "MORE PROGRAM'1
60 END
1000 PRINT THIS IS THE GOSUB'1: RETURN
STOP
Format:
STOP
Abbreviation:
Screen Display
This statement will halt a program and return control to the user.
The onfy difference between the STOP and END statements is that
the message BREAK IN LINE XXXX appears when STOP is used,
just as if the user had pressed the UiiJ Hey.
EXAMPLE:
100 STOP
SYS
Format:
SYS location
Abbreviation
SHIFT
Screen Display
This is the most common way to mix a BASIC program with a
machine language program. The machine language program
begins at the location given in the SYS statement. When the
machine language instruction RTS (return from subroutine) is
reached, the program jumps back to the BASIC program, right after
the SYS statement. A machine language program can be POKEd
into memory from BASIC or created with the aid of
EXAMPLE:
SYS 64802
POKE 4400
96 : SYS 4400
resets the VIC from power-up
returns immediately
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