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tops20_version7_0_monitor_sources_clock
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monitor-sources/cdkldv.mac
There are 45 other files named cdkldv.mac in the archive. Click here to see a list.
; UPD ID= 8483, RIP:<7.MONITOR>CDKLDV.MAC.2, 9-Feb-88 12:17:13 by GSCOTT
;TCO 7.1218 - Update copyright notice.
; UPD ID= 2051, SNARK:<6.1.MONITOR>CDKLDV.MAC.4, 3-Jun-85 14:17:27 by MCCOLLUM
;TCO 6.1.1406 - Update copyright notice.
; UPD ID= 4503, SNARK:<6.MONITOR>CDKLDV.MAC.3, 12-Jul-84 20:07:35 by PURRETTA
; UPD ID= 2050, SNARK:<6.MONITOR>CDKLDV.MAC.2, 21-Mar-83 18:01:42 by MURPHY
;GET RID OF ANCIENT SEARCH PROKL
;<4.MONITOR>CDKLDV.MAC.4, 4-Mar-79 14:37:31, Edit by KONEN
;UPDATE COPYRIGHT FOR RELEASE 4
;<4.MONITOR>CDKLDV.MAC.3, 1-Jan-79 15:19:46, EDIT BY DBELL
;TCO 4.2139 - DON'T READ AHEAD CARDS IF ANY ERROR IS DETECTED.
;<4.MONITOR>CDKLDV.MAC.2, 15-Dec-78 13:21:25, EDIT BY ENGEL
;AT CDVTFE+4 CHANGE TO KLRSTS
; COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1976, 1988.
; ALL RIGHTS RESERVED.
;
; THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
; ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE
; INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR ANY OTHER
; COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
; OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY
; TRANSFERRED.
;
; THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
; AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
; CORPORATION.
;
; DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
; SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY DIGITAL.
RESCD
CDRDTV::CDRHSD ;STRING DATA
R ; JUST RETURN
CDRTLS ;STATUS
0 ;NO LINE ALLOCATION
CDRSER ;SYSERR ENTRY
CDRRLD ;RELOAD ACTION
ASCBSZ: POINT 16,0 ;BYTE POINTER FOR ASCII CHARACTERS
CDVTFE==.
IFIW!CDRDC ;READ A CARD
IFIW!CDRFLS ;CLOSE
IFIW!R ;RESTART
IFIW!R ;INIT
IFIW!KLRSTS ;RETURN STATUS
IFIW!R ;BYTE SWAP
; ROUTINE CALLED FROM DTE SERVICE ON AN -11 RELOAD
CDRRLD: CAME A,MSTRDT ;IS THIS THE MASTER?
RET ;NO
SAVET ;PRESERVE TEMPORARY AC'S
MOVSI A,-CDRN ;GET AOBJN POINTER WITH UNIT # IN RH
CDRRL2: SETONE CDER,(A) ;INDICATE THIS CARD READER HAD AN ERROR
SETONE CDRLD,(A) ;MARK THAT THIS FRONT END WAS RELOADED
SETZRO CDBLK,(A) ;NO NEED TO BLOCK
AOS CARDER(A) ;BUMP ERROR COUNT
AOBJN A,CDRRL2 ;LOOP OVER ALL CARD READERS
RET ;RETURN
;ROUTINE CALLED FROM THE PROTOCOL SERVICE TO DETERMINE THE OWNING
;PROCESS FOR A CDR. CALL IS:
; B/ UNIT,,DEVICE-CODE
;RETURNS:
; +2 ALWAYS WITH A=OWNING PROCESS OR -1
CDRSER: HLRZS B ;GET UNIT
JE CDOPN,(B),[ ;IS IT OPENED?
MOVEI A,-1 ;NO. SAY UNASSIGNED
RETSKP] ;AND GO BACK
LOAD A,CDFRK,(B) ;GET FORK ID
RETSKP ;AND GO TO IT
RESCD
;DTE INTERRUPT SERVICE
RESCD ;MUST BE RESIDENT
CDRHSD::JSP CX,CHKCDR ;GO VERIFY ARGS
JE CDOPN,(B),R ;IF NOT OPENED, RETURN
SAVEQ ;SAVE REGS
MOVE U,B ;UNIT NUMBER
MOVEI C,0(A) ;MOVE THE COUNT
LOAD A,CDWRD,(B) ;WHERE IT IS GOING
HRLI A,0(D) ;SOURCE
MOVEI D,0(A) ;DEST AGAIN
LSH C,-2 ;WORDS TO COPY
ADDI D,0(C) ;WHERE WE WILL WIND UP
STOR D,CDWRD,(B) ;WHERE TO BEGIN NEXT
BLT A,-1(D) ;COPY THE DATA
LSH C,2 ;RESTORE BYTE COUNT FOR COMPUTATION
LOAD A,CDCNT,(B) ;GET CURRENT COUNT
ADDI A,0(C) ;NEW COUNT AFTER THIS TRANSFER
STOR A,CDCNT,(B) ;SAVE IT
CAIGE A,^D160 ;A FULL CARD ARRIVED?
RET ;NO. ALL DONE
AOS CARDCT(B) ;ANOTHER CARD ARRIVED
AOS CDRCT1(B) ;ONE MORE BUFFER FILLED
SETZRO CDBLK,(B) ;NOT WAITING FOR A CARD ANYMORE
CALL SETBF1 ;GO FIND INT BUFFER
LOAD C,CDBFI,(U) ;GET INTERRUPT LEVEL BUFFER BIT
XORI C,1 ;TOGGLE IT
STOR C,CDBFI,(U) ;READ INTO THIS ONE NEXT
JN CDAII,(U),[ LDB A,[POINT ^D16,0(A),15]
TRC A,7417 ;SEE IF THIS IS AN EOF
TRCE A,17 ;IS IT?
TRCN A,7400 ;OR THIS FLAVOR?
RET ;IS AN EOF
JRST .+1] ;NOT AN EOF
LOAD A,CDERR,(U) ;GET HARDWARE STATUS
SKIPG CDRCT1(U) ;ANOTHER PI BUFFER AVAILABLE?
TXNE A,MO%HE!MO%OL!MO%SFL!MO%HEM!MO%SCK!MO%PCK!MO%RCK ;STATUS OK?
RET ;NO, DON'T DO NEXT READ THEN
CALLRET RDCARD ;DO READ AHEAD
;ROUTINE TO GET STATUS OF CDR
KLRSTS: MOVE A,MSTRDT ;NO POST
MOVE B,[.DFRDS,,.FECDR] ;REQUEST STATUS
MOVSI C,0(U) ;THE UNIT, DIRECT
MOVEI D,0(U) ;UNIT
CALL DTEQ ;REQUEST STATUS
JFCL
RET ;AND DONE
CDRFLS: MOVE A,MSTRDT ;SEND FE ABORT
MOVE B,[.DFFDO,,.FECDR] ;FLUSH THE OUTPUT
SETZ C, ;IMMEDIATE REQUEST
MOVEI D,0(U) ;THE UNIT TO DO
CALLRET DTEQ ;TELL HIM
CDRDC: MOVE A,MSTRDT ;NO POST
STOR A,CDCNT,(U) ;NO BYTES IN PI BUFFER YET
MOVE B,[.DFLBE,,.FECDR] ;SEND AN ACK
SETZ C, ;IMMEDIATE
MOVEI D,0(U) ;UNIT
CALLRET DTEQ ;SEND IT
END