Getting started

This is a full Ficl system running in your browser. At the top right you will see the state of the parameter stack. Bottom right are some simulated LEDS. If you are new to Forth, please follow along with this tutorial in a split view. You can find more information on Ficl here.

Demo words

!led ( n -- )

Control simulated LEDs with the low 8 bits of n

ms ( ms -- )

Insert delay in milliseconds

yield ( -- )

Give the browser a chance to refresh the display

\ Try these examples - this is a comment
( this is also a comment )
1 value led
: step led 1 lshift 0x80 over < if drop 1 endif dup to led !led ;
: steps 0 do step 100 ms loop ;
16 steps