2020-11-15 06:50:14 +11:00
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( This is xcomp code that is common to both stage and forth
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binaries. )
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2020-06-27 08:58:02 +10:00
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0xff00 CONSTANT RS_ADDR
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0xfffa CONSTANT PS_ADDR
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2020-06-29 09:45:28 +10:00
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RS_ADDR 0x80 - CONSTANT SYSVARS
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0 CONSTANT HERESTART
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2020-06-27 08:58:02 +10:00
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: CODE ( natidx -- ) (entry) 0 C, C, ;
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VARIABLE ORG
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CREATE BIN( 0 ,
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: PC H@ ORG @ - ;
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262 LOAD ( xcomp )
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270 LOAD ( xcomp overrides )
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H@ ORG !
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2020-09-20 10:35:35 +10:00
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0x15 ALLOT0
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2020-06-27 08:58:02 +10:00
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( END OF STABLE ABI )
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2020-07-06 04:57:18 +10:00
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H@ 4 + XCURRENT ! ( make next CODE have 0 prev field )
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2020-07-06 03:41:12 +10:00
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0x00 CODE EXIT
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2020-07-06 04:57:18 +10:00
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0x01 CODE (br)
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0x02 CODE (?br)
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0x03 CODE (loop)
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2020-09-26 07:31:06 +10:00
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0x04 CODE (n)
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0x05 CODE (s)
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0x06 CODE >R
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0x07 CODE R>
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0x08 CODE 2>R
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2020-06-27 08:58:02 +10:00
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0x09 CODE 2R>
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0x0a CODE EXECUTE
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0x0b CODE ROT
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0x0c CODE DUP
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0x0d CODE ?DUP
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0x0e CODE DROP
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0x0f CODE SWAP
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0x10 CODE OVER
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0x11 CODE PICK
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0x12 CODE (roll)
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0x13 CODE 2DROP
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0x14 CODE 2DUP
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0x15 CODE S0
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0x16 CODE 'S
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0x17 CODE AND
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0x18 CODE OR
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0x19 CODE XOR
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0x1a CODE NOT
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0x1b CODE +
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0x1c CODE -
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0x1d CODE *
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0x1e CODE /MOD
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0x1f CODE !
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0x20 CODE @
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0x21 CODE C!
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0x22 CODE C@
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0x23 CODE PC!
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0x24 CODE PC@
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0x25 CODE I
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0x26 CODE I'
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0x27 CODE J
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0x28 CODE BYE
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0x29 CODE (resSP)
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0x2a CODE (resRS)
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0x2b CODE S=
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0x2c CODE CMP
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0x2d CODE _find
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0x2e CODE 0
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0x2f CODE 1
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0x30 CODE -1
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0x31 CODE 1+
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0x32 CODE 1-
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0x33 CODE 2+
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0x34 CODE 2-
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0x35 CODE RSHIFT
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0x36 CODE LSHIFT
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2020-09-26 07:31:06 +10:00
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0x37 CODE TICKS
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2020-10-30 03:34:02 +11:00
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0x38 CODE ROT>
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2020-12-08 12:08:45 +11:00
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0x39 CODE |L
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0x3a CODE |M
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2020-10-29 09:06:58 +11:00
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353 LOAD ( xcomp core )
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Make KEY non-blocking
... 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.
2021-01-02 00:05:29 +11:00
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: (key?) 0 PC@ 1 ;
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2020-06-27 08:58:02 +10:00
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: EFS@
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1 3 PC! ( read )
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2020-12-08 12:08:45 +11:00
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|M 3 PC! 3 PC! ( blkid )
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BLK( |M 3 PC! 3 PC! ( dest )
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2020-06-27 08:58:02 +10:00
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;
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: EFS!
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2 3 PC! ( write )
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2020-12-08 12:08:45 +11:00
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|M 3 PC! 3 PC! ( blkid )
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BLK( |M 3 PC! 3 PC! ( dest )
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2020-06-27 08:58:02 +10:00
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;
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2020-11-15 06:50:14 +11:00
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( fork between stage and forth begins here )
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