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MiniRobotLanguage (MRL)

 

JME. Conditional Jump

Jump on More or Equal

 

 

Intention

 

This command can be used to test a Variable for being "more or eqal"  against another variable or value. Here is a simple example that also uses the "post-decrement" option to easily construct a loop.

 

' Start-value

VAR.§§NUM=10

'-------------------------

:lop

DBP.§§NUM

' We're using the post-decrement operator as P2

JME.§§NUM<1|lop

'-------------------------

END.

 

If you switch variables P1 and P2 you can test for "smaller then".

 

The command can be switched from default mode (Jump Mode)  into "Gosub Mode" if you prefix the Label-Parameter P3 with a colon. Here is an example:

 

JME. is somehow the counterpart to JLE. - Jump on Less or Equal .

 

 

 

Syntax

 

JME.P1P2P3|P4

 

 

Parameter Explanation

 

P1 -  must be variable

 

P2 - can be an

   > increment-operator

   < decrement operator or

   | (Pipe Symbol) if no change of the value should happen

 

P3 - variable or formula* in (..) or numeric value

 

P4 - Label or Variable that evaluates to a Label.

         If it starts with a ":" (colon) a JSR. - Jump SubRoutine (Label) (GOSUB like)

        Jump is done instead of the normal JMP. - Jump to Label (GOTO like) Jump..

 

*In case of JME. the formula must never contain any of the possible Sign-Operator (P2) or else the command may not be properly interpreted.

 

 

 

Example

 

'*************************************

' Simple JME - Example

' 1 is the Loop-End

' the < makes a post-decrement

'*************************************

' Start-value

VAR.§§NUM=10

'-------------------------

:lop

PRT.§§NUM

JME.§§NUM<1|lop

'-------------------------

END.

 

 

'*************************************

' Another JME - Loop-Example

' using variables

'*************************************

' Start-value

: §§NUM=10

: §§TAR=5

: §§LAB=lop

:lop

PRT.§§NUM

' 5 is the Loop-End

VDC.§§NUM|2

JME.§§NUM|§§TAR|§§LAB

MBX.!

END.

 

 

 

Remarks

 

-

 

 

Limitations:

 

-

 

 

See also:

 

•     JIV. - Jump-If-Variable

•     JIZ. - Jump-If-Zero

•     JIN. - Jump if Not zero

•     JOR. - Jump On Repeat-Count

•     JME. - Jump on More or Equal

•     JLE. - Jump on Less or Equal

•     JMP. - Jump to Label

•     JSR. - Jump SubRoutine (Label)