IJump Commands (JUMP)

Dsz

Function: This command is a count jump that decrements the value of a control variable by 1, and then jumps if the current value of the variable is zero.

Syntax:

Variable Value ξ 0

_

Dsz <variable name> : <statement> : <statement>

^

Variable Value = 0

Parameters: variable name: A to Z, r, Θ

[Example] Dsz B : Decrements the value assigned to variable B by 1.

Description: This command decrements the value of a control variable by 1, and then tests (checks) it. If the current value is non-zero, execution continues with the next statement. If the current value is zero, execution jumps to the statement following the multi-statement command (:), display command (<), or carriage return (=).

Goto~Lbl

Function: This command performs an unconditional jump to a specified location.

Syntax: Goto <label name> ~ Lbl <label name>

Parameters: label name: value (0 to 9), variable (A to Z, r, Θ)

Description:

•This command consists of two parts: Goto n (where n is a parameter as described above) and Lbl n (where n is the parameter referenced by Goto n). This command causes program execution to jump to the Lbl-statement whose n parameter matches that specified by the Goto-statement.

•This command can be used to loop back to the beginning of a program or to jump to any location within the program.

•This command can be used in combination with conditional jumps and count jumps.

•If there is no Lbl-statement whose value matches that specified by the Goto-statement, an error occurs.

Isz

Function: This command is a count jump that increments the value of a control variable by 1, and then jumps if the current value of the variable is zero.

Syntax:

 

 

Variable Value ξ 0

 

_

 

 

 

 

 

 

 

 

 

 

 

 

Isz <variable name> : <statement> : <statement>

^

Variable Value = 0

Parameters: variable name: A to Z, r, Θ

[Example] Isz A : Increments the value assigned to variable A by 1.

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