Sharp EL-5230, EL-5250 operation manual Flow control, Gosub

Chapter 7: Programming

Flow control

Command	Key	Description	Examples
	operations
Label	i 6	Indicates a destination point for	Label LOOP1
<label name>		the flow statements Goto and	Label LOOP2
		Gosub. Up to seven letters can
		be used for the label name.
		Each label name must be
		unique. You cannot use the
		same label name more than
		once in a program. Up to 20
		different labels can be used in
		each program.
Clrt	i 7	Clear the text displayed on the	Clrt
		screen.
If	i 8	The If clause must be followed	If B≥=1 Goto
<condition>		by a conditional statement and	LOOP1
Goto	i 9	then a Goto command. Goto is
<label name>		the only command allowed to
		be used after the If clause. You
		can enter ; s before
		the Goto command to make the
		line easier to read.
Goto	i 9	Causes the program to jump to	Goto LOOP2
<label name>		the stated Label (specified by a
		Label command). A Goto
		statement must have a
		corresponding Label statement
		line that indicates where to go.
Gosub	i A	Runs the subroutine beginning	Gosub PART1
<label name>		at the stated Label (specified by
		a Label command). A Gosub
		statement must have a
		corresponding subroutine that
		starts after the Label statement
		and ends with a Return
		command. Subroutines can be
		nested up to ten levels deep.
Return	i B	Defines the end of a subroutine.	Return
		Operation returns to the
		command following the
		corresponding Gosub
		statement.

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