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ON...GOSUB |
Conditional Subroutine Execution |
ON num GOSUB stmtref,stmtref,...
Where:
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num |
Value determines the location to which to transfer. Numeric expression. Integer range -32768 to +32767. |
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stmtref |
Program line number or statement label to which to transfer control. |
Use the ON ... GOSUB directive to transfer control to a subroutine at one of the statement references listed, based on the numeric value supplied:
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num <=0 |
Control is transferred to the first statement specified. |
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num =1 |
Control is passed to the second statement number specified. |
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num =2 |
Control is passed to the third. |
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num =3… nnn |
Control is passed sequentially. |
If num is greater than the number of stmtref supplied, the last stmtref is assumed.
GOSUB.. Execute Subroutine
RETURN Return From a Subroutine
0020 on X gosub 0100,0200,0300,0400,0500
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ON... |
GOSUB |
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X <= 0 |
Transfers to 0100 |
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X = 1 |
Transfers to 0200 |
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X = 2 |
Transfers to 0300 |
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X = 3 |
Transfers to 0400 |
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X >= 4 |
Transfers to 0500 |