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gosub {sub name} {param1, param2, ...}


The gosub command transfers the execution to a sub with the name given by the parameter.

Parameters can be added after the sub name. They will be transfered in the variables %1, %2, and so on. The variable %0 holds the number of parameters passed.

Note: You must not jump out of a sub! Use return to properly terminate a sub routine. To prevent a stack overflow, EUO only supports 1000 consecutive GoSubs without returning. Remember this when using recursion! When the GoSub stack is about to get 1001 levels, the very first level in the bottom of the stack is deleted to make room.

Example 1

gosub s7IsGreaterThan CEO RK
; %1 = CEO
; %2 = RK
; %0 = 2
sub s7IsGreaterThan
   display ok %1 && %2 even %0 , gether < una

Example 2

; syntax = 
;   gosub {subName} [parameters...]

gosub example_goSub These are the parameters

sub example_goSub
; %0 = 4
; %1 = These
; %2 = are
; %3 = the
; %4 = parameters
set %message
for %_cnt 1 %0
   set %message %message , % . %_cnt , #spc
display ok %message

Related Commands

Sub Return

See Also

Flow Control

  • Flow control commands allow scripts to make decisions based on the evaluation of boolean expressions.
break Jumps to first statement outside of loop
call Transfers execution to another script file
continue Jumps execution of a loop to next iteration
exit Exits a called script
for Creates a counting loop
gosub Transfers execution to the matching sub
goto Jumps to another part of the script given by a label
halt Stops the script
if Executes code based on the evaluation of an expression
pause Temporarily stops the execution of the current script
repeat..until Creates a loop that checks condition after execution
return Returns from a sub
stop Ends the script
while Creates a loop that checks condition before execution