collapseos/blk/369

: IMMEDIATE
    CURRENT @ 1-
    DUP C@ 128 OR SWAP C! ;
: IMMED? 1- C@ 0x80 AND ;
: '? WORD FIND ;
: ' '? NOT IF (wnf) THEN ;
: ROLL
    ?DUP NOT IF EXIT THEN
    1+ DUP PICK          ( n val )
    SWAP 2 * (roll)      ( val )
    NIP ;
: 2OVER 3 PICK 3 PICK ;
: 2SWAP 3 ROLL 3 ROLL ;
Remove Extra words The few extra bytes they save in the core aren't worth the extra complexity. This was initially done in a context where I had troubles keeping the RC2014 binary with SDC inside the 8K limit. At this point, even with the few extra bytes we add here, we're at 7200 bytes, so I'd say we're fine. 2020-09-22 04:40:53 +10:00			`: IMMEDIATE`
			`CURRENT @ 1-`
			`DUP C@ 128 OR SWAP C! ;`
			`: IMMED? 1- C@ 0x80 AND ;`
Make string length-prefixed instead of null-terminated I'm not sure why I chose null-terminated initially. Probably because the z80asm version had null-terminated strings. Length-prefixes strings are the traditional form of strings in Forth and it's a bit easier to work with them with traditional forth words when they're under this form. 2020-05-26 10:34:52 +10:00			`: '? WORD FIND ;`
Remove LIT< in favor of LIT" exclusively This duplicated feature existed because of bootstrapping issues with LIT", but again, with careful threading, we can clean things up. We can now have a proper "Collapse OS" prompt :) 2020-09-20 08:51:29 +10:00			`: ' '? NOT IF (wnf) THEN ;`
Make string length-prefixed instead of null-terminated I'm not sure why I chose null-terminated initially. Probably because the z80asm version had null-terminated strings. Length-prefixes strings are the traditional form of strings in Forth and it's a bit easier to work with them with traditional forth words when they're under this form. 2020-05-26 10:34:52 +10:00			`: ROLL`
			`?DUP NOT IF EXIT THEN`
			`1+ DUP PICK ( n val )`
			`SWAP 2 * (roll) ( val )`
			`NIP ;`
			`: 2OVER 3 PICK 3 PICK ;`
			`: 2SWAP 3 ROLL 3 ROLL ;`