| Variable leavings |
Variable leavings |
| |
|
| : (leave) here leavings @ , leavings ! ; |
: (leave) here leavings @ , leavings ! ; |
| : LEAVE compile branch (leave) ; immediate restrict |
: LEAVE postpone branch (leave) ; immediate restrict |
| : ?LEAVE compile 0= compile ?branch (leave) ; |
: ?LEAVE postpone 0= postpone ?branch (leave) ; |
| immediate restrict |
immediate restrict |
| |
|
| : DONE ( addr -- ) leavings @ |
: DONE ( addr -- ) leavings @ |
| |
|
| \ Structural Conditionals 12dec92py |
\ Structural Conditionals 12dec92py |
| |
|
| : DO compile (do) here ; immediate restrict |
: DO postpone (do) here ; immediate restrict |
| |
|
| : ?DO compile (?do) (leave) here ; |
: ?DO postpone (?do) (leave) here ; |
| immediate restrict |
immediate restrict |
| : FOR compile (for) here ; immediate restrict |
: FOR postpone (for) here ; immediate restrict |
| |
|
| : loop] dup <resolve 2 cells - compile done compile unloop ; |
: loop] dup <resolve 2 cells - postpone done postpone unloop ; |
| |
|
| : LOOP sys? compile (loop) loop] ; immediate restrict |
: LOOP sys? postpone (loop) loop] ; immediate restrict |
| : +LOOP sys? compile (+loop) loop] ; immediate restrict |
: +LOOP sys? postpone (+loop) loop] ; immediate restrict |
| : NEXT sys? compile (next) loop] ; immediate restrict |
: NEXT sys? postpone (next) loop] ; immediate restrict |
| |
|
| : EXIT compile ;s ; immediate restrict |
: EXIT postpone ;s ; immediate restrict |
| : ?EXIT postpone IF postpone EXIT postpone THEN ; immediate restrict |
: ?EXIT postpone IF postpone EXIT postpone THEN ; immediate restrict |
| |
|