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Presents historical artifacts from the history of:

Philips Data Systems

This is an automatic "excavation" of a thematic subset of
artifacts from Datamuseum.dk's BitArchive.

See our Wiki for more about Philips Data Systems

Excavated with: AutoArchaeologist - Free & Open Source Software. 

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⟦a83fce7c6⟧ 

    Length: 1280 (0x500)
    Notes: pts_type(SC)
    Names: »DVTKB.SC«

Derivation

└─⟦173d42e04⟧ Bits:30009663 Philips computer tape "600105"
    └─⟦this⟧ »TOSSWORK/DVTKB.SC«

PTS(SC)

	IDENT DVTKB 	REL 10.0 80-03-14 870105041000

*  KEYBOARD DEVICE WORK TABLE 
* 
	ENTRY	DVTKB	TABLE ENTRY
*** 
	EXTRN	KBAD	POINTER TO ADDRESSBLOCK 
	EXTRN	ECH
MMUPAG	EQU	0
* 
DVTKB	EQU	*	TABLE ENTRY 
	DATA	/1111	CHANNEL PARAMETER 
	DATA	/8000	STATUS./8000 MEANS DEVICE READY 
	DATA	0	ECB ADDRESS 
	DATA	DWTEND-DVTKB	ORDER
	DATA	KBAD	POINTER TO ADDRESS BLOCK 
	DATA	'KB'	TTAB-ADDRESS 
	DATA	0	WAIT/ACTIVATE INDICATOR 
	DATA	0	TERMINAL QUEUE
	IFT	MMUPAG=1 
	DATA	0	SAVE AREA USER ECB ADDRESS
	DATA	DEVECB	MMU ECB ADDRESS
	XIF
	DATA	0	CODE CONVERSION TABLE POINTER 
	DATA	0	SAVE AREA FOR A3
	DATA	0	SAVE AREA FOR A4
	DATA	0	SAVE AREA FOR A5
	RES	4	DWT-STACK
	DATA	0	TIMER POINTER 
	DATA	ECH	ECHO DEVICE 
	DATA	/BCA	BACKSPACE AND CANCEL 
	DATA	/ED0	EOR AND DOUBLE ZERO
	DATA	DWTSQ+DVTKB	POINTER TO FIRST PLACE IN QUEUE 
	DATA	DWTSQ+DVTKB	POINTER TO LAST PLACE IN QUEUE
DWTSQ	EQU	*-DVTKB 
	RES	0
	IFT	MMUPAG=1 
DEVECB	EQU	*
	DATA	0,0,0,0,0,0 
	XIF
DWTEND	EQU	*
* 
	END

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