mirror of
https://github.com/hsoft/collapseos.git
synced 2024-11-10 02:48:05 +11:00
105 lines
1.8 KiB
Forth
105 lines
1.8 KiB
Forth
|
0xe800 CONSTANT RAMSTART
|
||
|
|
0xff00 CONSTANT RS_ADDR
|
||
|
|
0xfffa CONSTANT PS_ADDR
|
||
|
|
: CODE ( natidx -- ) (entry) 0 C, C, ;
|
||
|
|
VARIABLE ORG
|
||
|
|
CREATE BIN( 0 ,
|
||
|
|
: PC H@ ORG @ - ;
|
||
|
|
262 LOAD ( xcomp )
|
||
|
|
270 LOAD ( xcomp overrides )
|
||
|
|
|
||
|
|
H@ ORG !
|
||
|
|
ORG @ 0x3b + HERE !
|
||
|
|
," EXIT"
|
||
|
|
0 , ( prev ) 4 C,
|
||
|
|
H@ XCURRENT ! ( set current tip of dict, 0x42 )
|
||
|
|
0 C, 0 C,
|
||
|
|
ORG @ 0x4c + HERE !
|
||
|
|
0x01 CODE (br) ( 0x53 )
|
||
|
|
ORG @ 0x5f + HERE !
|
||
|
|
0x02 CODE (?br) ( 0x67 )
|
||
|
|
ORG @ 0x77 + HERE !
|
||
|
|
0x03 CODE (loop) ( 0x80 )
|
||
|
|
ORG @ 0xa3 + HERE !
|
||
|
|
0x04 CODE 2>R ( 0xa9 )
|
||
|
|
ORG @ 0xb9 + HERE !
|
||
|
|
0x05 CODE (n) ( 0xbf )
|
||
|
|
ORG @ 0xce + HERE !
|
||
|
|
0x06 CODE (s) ( 0xd4 )
|
||
|
|
( END OF STABLE ABI )
|
||
|
|
0x07 CODE >R
|
||
|
|
0x08 CODE R>
|
||
|
|
0x09 CODE 2R>
|
||
|
|
0x0a CODE EXECUTE
|
||
|
|
0x0b CODE ROT
|
||
|
|
0x0c CODE DUP
|
||
|
|
0x0d CODE ?DUP
|
||
|
|
0x0e CODE DROP
|
||
|
|
0x0f CODE SWAP
|
||
|
|
0x10 CODE OVER
|
||
|
|
0x11 CODE PICK
|
||
|
|
0x12 CODE (roll)
|
||
|
|
0x13 CODE 2DROP
|
||
|
|
0x14 CODE 2DUP
|
||
|
|
0x15 CODE S0
|
||
|
|
0x16 CODE 'S
|
||
|
|
0x17 CODE AND
|
||
|
|
0x18 CODE OR
|
||
|
|
0x19 CODE XOR
|
||
|
|
0x1a CODE NOT
|
||
|
|
0x1b CODE +
|
||
|
|
0x1c CODE -
|
||
|
|
0x1d CODE *
|
||
|
|
0x1e CODE /MOD
|
||
|
|
0x1f CODE !
|
||
|
|
0x20 CODE @
|
||
|
|
0x21 CODE C!
|
||
|
|
0x22 CODE C@
|
||
|
|
0x23 CODE PC!
|
||
|
|
0x24 CODE PC@
|
||
|
|
0x25 CODE I
|
||
|
|
0x26 CODE I'
|
||
|
|
0x27 CODE J
|
||
|
|
0x28 CODE BYE
|
||
|
|
0x29 CODE (resSP)
|
||
|
|
0x2a CODE (resRS)
|
||
|
|
0x2b CODE S=
|
||
|
|
0x2c CODE CMP
|
||
|
|
0x2d CODE _find
|
||
|
|
0x2e CODE 0
|
||
|
|
0x2f CODE 1
|
||
|
|
0x30 CODE -1
|
||
|
|
0x31 CODE 1+
|
||
|
|
0x32 CODE 1-
|
||
|
|
0x33 CODE 2+
|
||
|
|
0x34 CODE 2-
|
||
|
|
0x35 CODE RSHIFT
|
||
|
|
0x36 CODE LSHIFT
|
||
|
|
353 LOAD ( xcomp core low )
|
||
|
|
: (emit) 0 PC! ;
|
||
|
|
: (key) 0 PC@ ;
|
||
|
|
: EFS@
|
||
|
|
1 3 PC! ( read )
|
||
|
|
256 /MOD 3 PC! 3 PC! ( blkid )
|
||
|
|
BLK( 256 /MOD 3 PC! 3 PC! ( dest )
|
||
|
|
;
|
||
|
|
: EFS!
|
||
|
|
2 3 PC! ( write )
|
||
|
|
256 /MOD 3 PC! 3 PC! ( blkid )
|
||
|
|
BLK( 256 /MOD 3 PC! 3 PC! ( dest )
|
||
|
|
;
|
||
|
|
: COLS 80 ; : LINES 32 ;
|
||
|
|
: AT-XY 6 PC! ( y ) 5 PC! ( x ) ;
|
||
|
|
|
||
|
|
380 LOAD ( xcomp core high )
|
||
|
|
(entry) _
|
||
|
|
( Update LATEST )
|
||
|
|
PC ORG @ 8 + !
|
||
|
|
," CURRENT @ HERE ! "
|
||
|
|
," BLK$ "
|
||
|
|
," ' EFS@ BLK@* ! "
|
||
|
|
," ' EFS! BLK!* ! "
|
||
|
|
EOT,
|
||
|
|
ORG @ 256 /MOD 2 PC! 2 PC!
|
||
|
|
H@ 256 /MOD 2 PC! 2 PC!
|