Okay, just pipe the number of even terms you want into STDIN (an input of 4 will display the sum of the first 4 even terms of fibonacci) and you're good to go.
Befunge 93:
188p199p&1 v
88g99g+88p88g99g+:99p+\1-:!#v_\>
>\.@
Kind of disappointed as this solution uses get and put and therefore is less... "fungical"? but trying to do this all on a single stack got away from me.
Okay, just pipe the number of even terms you want into STDIN (an input of 4 will display the sum of the first 4 even terms of fibonacci) and you're good to go.
Befunge 93:
Kind of disappointed as this solution uses get and put and therefore is less... "fungical"? but trying to do this all on a single stack got away from me.
A Funge++ solution might look more elegant...
Here we go, MUCH happier with this Funge++ solution: