Sharp MZ-700 Basic Manual page 90

92
5.1.9
Branch Statements
GOTO
GOSUB -
RETURN
IF - THEN
IF - GOTO
IF - GOSUB
ON- GOTO
ON-
GOSUB
100 GOTO 200
100 GOSUB 700
800 RETURN
Jumps to statement number 200 (= movement of program
execution).
Branches to statement number 700 subroutine (calling of
subroutine). Ends subroutine execution by RETURN
statement, and returns to statement following GOSUB
command in the main program.
10 IF A>20 THEN Jumps to statement number 200 if variable A is larger
200 than 20. Executes next statement if A is 20 or less.
50 IF B<3 THEN B Substitutes B + 3 for variable B if variable B is less than
=B+3
100 IF A>=B GO
TO 10
3. Executes next statement if B is 3 or greater.
Jumps to statement number 10 if variable A is equal to or
greater than variable B. Executes next statement if A is
less than B.
30 IF A=B
*
2 GO Branches to statement number 90 subroutine if value of
SUB 90 variable A
is equal to twice the value of B. If not,
executes next statement.
(If there is a multi-statement following a conditional
statement, the ON statement is executed when the
condition is not reached, but the IF statement moves the
execution to the next statement number if the condition is
not reached, and the multi-statement is ignored.)
50 ON A GOTO 70, Jumps to statement number 70 if variable A is 1, to
80. 90 statement number 80 if it is 2, and to statement number 90
if it is 3. The next statement is executed if A is 0 or 4 or
more. The INT function is included in ON, so jumps to
statement number 80 if A is 2.7, in the same way as 2.
90 ON A GOSUB
700. 800
Branches to statement number 700 subroutine if variable
A is 1, and to statement number 800 if it is 2. The next
statement is executed if A is 0 or 3 or more.