collapseos/blk/390

( xcomp core high )
: (main) INTERPRET BYE ;
: BOOT
    0x02 RAM+ CURRENT* !
    CURRENT @ 0x2e RAM+ ! ( 2e == BOOT C< PTR )
    0 0x08 RAM+ !  ( 08 == C<* override )
    ['] (emit) ['] EMIT **! ['] (key) ['] KEY **!
    ['] CRLF ['] NL **!
    ['] (boot<) ['] C<* **!
    ['] C@ ['] A@ **! ['] C! ['] A! **! ['] C, ['] A, **!
    ( boot< always has a char waiting. 06 == C<?* )
    1 0x06 RAM+ ! INTERPRET
    RDLN$ LIT" _sys" [entry]
    LIT" Collapse OS" (print) NL (main) ;
XCURRENT @ _xapply ORG @ 0x04 ( stable ABI BOOT ) + !
1 4 LOADR+
Move most of the high layer of comp core into the low one With KEY and EMIT being switch words, most of the high layer can be defined before drivers. In addition to this change, I've compacted core blocks which were becoming quite sparse. 2020-10-29 09:06:58 +11:00			`( xcomp core high )`
			`: (main) INTERPRET BYE ;`
			`: BOOT`
			`0x02 RAM+ CURRENT* !`
			`CURRENT @ 0x2e RAM+ ! ( 2e == BOOT C< PTR )`
			`0 0x08 RAM+ ! ( 08 == C<* override )`
			`['] (emit) ['] EMIT ! ['] (key) ['] KEY !`
			`['] CRLF ['] NL **!`
			`['] (boot<) ['] C<* **!`
Add word A, This would be useful, for example, to allow the assembler to write straight to an AT28 EEPROM without going to RAM. This would be a life saver in machines with tight RAM such as the SMS. 2020-10-29 11:45:50 +11:00			`['] C@ ['] A@ ! ['] C! ['] A! ! ['] C, ['] A, **!`
Move most of the high layer of comp core into the low one With KEY and EMIT being switch words, most of the high layer can be defined before drivers. In addition to this change, I've compacted core blocks which were becoming quite sparse. 2020-10-29 09:06:58 +11:00			`( boot< always has a char waiting. 06 == C<?* )`
			`1 0x06 RAM+ ! INTERPRET`
			`RDLN$ LIT" _sys" [entry]`
			`LIT" Collapse OS" (print) NL (main) ;`
			`XCURRENT @ _xapply ORG @ 0x04 ( stable ABI BOOT ) + !`
			`1 4 LOADR+`