475caf35f4
... and rename it to KEY?. Then, add KEY from KEY? for its blocking version. I need this for an upcoming Remote Shell feature. If a Collapse OS system remotely controls another shell, it needs to be able to poll both the remote system and the local keyboard at the same time. A blocking KEY is incompatible with this. In some places, the polling mechanism doesn't make sense, so this new KEY? always returns a character. In some places, I just haven't implemented the mechanism yet, so I kept the old blocking code and added a "always 1" flag as a temporary shim. I have probably broken something, but in emulators, Collapse OS runs fine. It's an important reminder of what will be lost with the new "dogfooding" approach (see recent mailing list message): without emulators, it's much harder to to sweeping changes like this without breaking stuff. It's fine, I don't expect many more of these core changes to the system. It's nearly feature-complete.
36 lines
745 B
Forth
36 lines
745 B
Forth
0xff00 CONSTANT RS_ADDR
|
|
0xfffa CONSTANT PS_ADDR
|
|
RS_ADDR 0x80 - CONSTANT SYSVARS
|
|
0 CONSTANT HERESTART
|
|
5 LOAD ( z80 assembler )
|
|
262 LOAD ( xcomp )
|
|
282 LOAD ( boot.z80.decl )
|
|
270 LOAD ( xcomp overrides )
|
|
283 335 LOADR ( boot.z80 )
|
|
353 LOAD ( xcomp core low )
|
|
: (emit) 0 PC! ;
|
|
: (key?) 0 PC@ 1 ;
|
|
: 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 ) ;
|
|
|
|
390 LOAD ( xcomp core high )
|
|
(entry) _
|
|
( Update LATEST )
|
|
PC ORG @ 8 + !
|
|
," BLK$ "
|
|
," ' EFS@ BLK@* ! "
|
|
," ' EFS! BLK!* ! "
|
|
EOT,
|
|
ORG @ 256 /MOD 2 PC! 2 PC!
|
|
H@ 256 /MOD 2 PC! 2 PC!
|