Gosub

Synopsis

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

Description

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
return

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
halt

See also

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