perm filename PLALCS.FAI[MUS,LCS]1 blob
sn#307161 filedate 1977-09-29 generic text, type C, neo UTF8
COMMENT ⊗ VALID 00013 PAGES
C REC PAGE DESCRIPTION
C00001 00001
C00002 00002 TITLE SOUND DOROTHY BENDER MEMORIAL TITLE 1969,69,69, 1975(LCS)*******
C00006 00003 FIND OUT NUMBER OF CHANNELS AND THE SPEED.
C00013 00004 JRST GOTCHA GO AHEAD
C00018 00005
C00023 00006 Accumulators, temp storage
C00026 00007 Error codes
C00027 00008 DACINI
C00032 00009 DACPLA
C00037 00010 WAIT1 - Wait for a buffer done message
C00039 00011 DACWAI - Wait for all xfrs to finish
C00040 00012 DACREL - release the device
C00041 00013 END
C00042 ENDMK
C⊗;
TITLE SOUND; DOROTHY BENDER MEMORIAL TITLE 1969,69,69, 1975(LCS)*******
;************** LOAD WITH 'DACPLA.FAI' ****** (IT MAY BE ON [SIX,MUS] ) *******
; ******CALL PLAY *****
; ROUTINE TO READ THE OUTPUT FROM THE MUSIC
; PROGRAM AND CALL THE D-A CONVERTER TO PLAY.
;
; NAME OF THE FILE TO BE INPUTTED IS 'TEST.SND'
; THE FIRST RECORD OF WHICH CONTAINS THE
; NUMBER OF WORDS OF DATA IN THE ENTIRE DISK FILE.
; ALSO INCLUDES FUNCTION TO CHECK ON DATADISC - FOR DPYS.
INTERNAL PLAY
entry DACPLA
internal DACINI,DACPLA,DACWAI,DACREL
external DSK6RD,DSK6WR,MESINI,SBFILN
.library JAMLIB.REL[SUB,SYS]
EXTERNAL JOBREL
A ← 1 ;WORK
B ← 2 ;WORK
T1 ← 4 ; TEMP FOR ADSMAP (JAM)
REP ← 6; ;FOR REPLAY USETI
P ← 17
↓DSKCHN ←11 ;DISK CHANNEL FOR INPUT
↓ADCHN ←12 ;D-A CHANNEL FOR OUTPUT
↓SIXCHN ←13 ;SIX CHANNEL FOR RUNNING DAC
PDL: BLOCK 40
OPDEF READCH [51B8]
OPDEF MESSAGE[51B8!3B12]
;;EXTERNAL DACINI,DACPLA,DACWAI,DACREL
;External integer procedure DACINI(Integer dskchn,sixchn,dacchn,clock,pack,nchns,waitflag(0));
;External integer procedure DACPLA(Integer stword,nwds,track(0),blk(0));
;External integer procedure DACWAI;
;External integer procedure DACREL;
;;PLAY: 0
BEG: ;CALLI 0,0 ;RESET I/O DEVICES
PLAY: OPEN DSKCHN,[17 ;MODE
'DSK ' ;DEVICE NAME
0] ;NO BUFFER HEADERS
HALT BEG ;RESTART IF DEVICE IS UNAVAILABLE
;IRC MOVE 0,SBFILN ;OUTPUT NAME FROM 'MUSIC' (6-BIT)
;IRC MOVEM 0,FILE
;;; MOVE 7,['SND ']
;;; MOVE 6,['TEST ']
MOVE 6,SBFILN ;GET FILNAME FROM 'MUSIC'
MOVE 7,SBFILN+1 ] ;GET EXT.
SETZM DIR+3 ;FOR RESTART
;; MOVE @1(16) ; GET SRATE
;; IDIVI =12800 ;NOW IT IS 0,1,2,4,8 OR 16.
;; CAIN 4
;; MOVEI 3 ;4 GOES TO 3
;; CAIN =8
;; MOVEI 4 ;8 GOES TO 4
;; CAIN =16
;; MOVEI 5 ;16 GOES TO 5
;; MOVEM SAVSPD ;INIT SAVSPD
MOVEM 6,DIR
MOVEM 7,DIR+1
;FIND OUT NUMBER OF CHANNELS AND THE SPEED.
;; MOVE A,@(16) ; GET NCHNS FROM MAIN PROG.
;; SKIPG A ;*****ALL THIS IS FOUND IN HEADER ANYWAY!!!
MOVEI A,1 ;MAKE NCHNS=1 IF IT WASN'T
DPB A,[POINT 2,DACPAR,35]
SETZM REP ; FOR SPEED CHNGS WITH HEADER
SPD: MESSAGE [ASCIZ/
SPEED NUM, <CR>, OR "X" /]
READCH A
SETOM REPT#
CAIE A,"X"
JRST .+3
MESSAGE [ASCIZ/ ****PLEASE DELETE SOUND FILE****
/]
POPJ P,
;; JRA 16,(16)
CAIN A,15 ; IS IT A CRLF???
JRST CRLF ; YES
CAIN A,"R" ;"Rn" REPEATS PLAY n TIMES
JRST REP3
CAIG A,"5" ;IS IT 1 - 5?
JRST SPD2 ;YES
SKIPN DIR+3 ;IS THIS THE 1ST TIME THRU?
JRST SPD ;YES, SO WE NEED A GOOD NUM.
JRST PLA2 ;ELSE GO PLAY SAME AS LAST TIME
REP3: READCH A ;WHAT FOLLOWS R?
SUBI A,"0" ;FIX IT UP
CAILE A,=9 ;IF(A.GT.9)A=1 TRAPS "G" ETC.
MOVEI A,1
MOVNM A,REPT
MOVE A,SAVSPD ;GET BACK SPEED.
JRST SPD3
CRLF: READCH A ;GET THE LINEFEED
MOVE A,SAVSPD
JRST SPD3
SPD2: SUBI A,"0"
MOVEM A,SAVSPD# ;SAVE AC A.
SPD3: DPB A,[POINT 3,DACPAR,26]
PLA2: SETZM DIR+3
LOOKUP DSKCHN,DIR
SKIPA ;CAN'T FIND TEST.SND
JRST XOPEN ;FOUND IT
MUS: JRST [MESSAGE[ASCIZ/
*** TEST.SND NOT FOUND/]
CALLI 12]
;EXIT IF FILE IS MISSING
XOPEN: OPEN ADCHN,[1B27+000 ;MODE
'DAC ' ;DEVICE NAME
0] ;NO BUFFER HEADERS
SKIPA
JRST GOTCHA ;GO AHEAD
MESSAGE [ASCIZ/
WAITING FOR DAC------ /]
OPEN ADCHN,[1B26+000 ;WE'LL WAIT FOR IT
'DAC '
0]
0 ;NO FAILURE POSSIBLE?????
GOTCHA: PUSH P,[DSKCHN]
PUSH P,[SIXCHN]
PUSH P,[ADCHN]
LDB B,[POINT 3,DACPAR,26] ;PUT AWAY THE SPEED
PUSH P,B
LDB B,[POINT 2,DACPAR,29] ;12 OR 18 BIT
PUSH P,B
LDB B,[POINT 2,DACPAR,35]
PUSH P,B
PUSH P,[0] ; INTERROGATE USER AND WAIT FOR IT
PUSHJ P,DACINI
SPWAR: LOCK A, ;SPWAR:
MESSAGE [ASCIZ/ GO? /]
READCH A
CAIN A,15
READCH A ;FOR CRLF
; READS TO FIND (AND IGNORE) HEADER.(1ST REC.)
DOIT: SKIPE REP ;SKIP FIRST TIME
JRST REPLA ;OMIT HEADER ON REPLAYS
MOVEI REP,1 ;FOR REPLAY
INPUT DSKCHN,HEADER
MOVEI A,BUF1-1
MOVE B,1(A)
CAME B,[525252525252] ; LOOKS FOR MAGIC NUMBER.
JRST REPLA
MESSAGE [ASCIZ/
---- THERE'S A HEADER ---- /]
PUSH P,[DSKCHN]
PUSH P,[SIXCHN]
PUSH P,[ADCHN]
HLRZ B,2(A) ;GET SPEED FROM LEFT HALF OF WD 2
JUMPN B,SPDOK
MOVE B,2(A) ;FIND SRATE NUM FOR SPEED
IDIVI B,=12800
SPDOK: MOVEM B,SAVSPD
DPB B,[POINT 3,DACPAR,26] ;PUT AWAY THE SPEED
PUSH P,B
HRRZ B,3(A) ;GET BITS FROM RIGHT HALF OF WD 3
DPB B,[POINT 2,DACPAR,29] ;12 OR 18 BIT
PUSH P,B
MOVE B,4(A) ;GET NCHNS FROM WD 4
DPB B,[POINT 2,DACPAR,35]
PUSH P,B
PUSH P,[0] ; INTERROGATE USER IF DAC NOT AVAILABLE
PUSHJ P,DACINI ; INITIALIZE THE DAC, SET PARAMETERS
MOVEI REP,2 ;FOR REPLAY
REPLA: USETI DSKCHN,(REP) ;REP=1 IF NO HEADER, =2 WITH HEADER.
LNTH: movs a,DIR+3 ;get length of file.
CAIN REP,2 ;WAS THERE A HEADER?
ADDI A,200 ;YES, SUBTRACT IT FROM WDCNT.
movnm a,nwd
;-----------------------------------------------------
;BEGIN MAIN BODY OF PROGRAM
MOVE T1,[647003,,0]
ADSMAP T1, ; SET AUDIO SWITCH TEMPORARILY TO DAC (JAM 7/24/75)
; THE OPTIONS WE ASKED FOR ARE TEMPORARY, WAIT FOR
; PAGE TO FINISH, DON'T INTERRUPT WITH MORE PAGES,
; DELAY BEEPS TO END OF XFR.
OUTSTR [ASCIZ /
TO DAC . . ./]
PUSH P,REP ; SAVE OVER CALL
SETZ B,
CAIN REP,2
MOVEI B,200
PUSH P,B
PUSH P,NWD
PUSH P,[0]
PUSH P,[0]
PUSHJ P,DACPLA
POP P,REP ; GET REP BACK
DONE: AOSGE REPT ;UPDATE REPT
JRST REPLA ;WE PLAY AGAIN IF REPT .LT.0
PUSHJ P,DACWAI
PUSHJ P,DACREL
close dskchn, ;END OF PROGRAM.
;; SKIPL XGHLD ;FOR GREED'S SAKE
releas adchn,
;; OUTSTR [ASCIZ / DONE!
;;/]
SETO T1,
ADSMAP T1, ; RESET AUDIO SWITCH CONNECTION TO PERMANENT (JAM 7/24/75)
UNLOCK
jrst SPD
; STORAGE:
NWD: 0 ;FOR NUMBER OF WORDS OF INPUT.
;↓BUF1: BLOCK BUFSIZ+1 ;BUFFER 1
;BUF2: BLOCK BUFSIZ+1 ;BUFFER 2
;BUF3: BLOCK BUFSIZ+1 ;BUFFER 3
DIR: 0 ;NAME
0 ;EXTENSION
0 ;INFORMATION ON FILE
0 ;PROJECT PROG#
CLIST: IOWD 1,NWD ;FOR THE FIRST RECORD
0
INLIST: 0 ;WILL CONTAIN AN IOWD
0
HEADER: IOWD =128,BUF1
0
BUF1: BLOCK =128
OUTWC: 0 ;WILL CONTAIN AN IOWD FOR D-A
OUTBIT: 4000 ;BITS FOR D-A
BLOCK 2
DACPAR: 1001 ;SPEED 0=6.4K, 1=12.8, 2=25.6, 3=51.2, 4=102.4, 5=
0
0
A←1
B←2
D←3
ichn←adchn
comment ⊗
External integer procedure DACINI(Integer dskchn,sixchn,dacchn,clock,pack,nchns,waitflag(0));
External integer procedure DACPLA(Integer stword,nwds,track(0),blk(0));
External integer procedure DACWAI;
External integer procedure DACREL;
DACINI
Must have disk open on channel DSKCHN. It will open the SIX and the DAC. Afterwards
it will set the DAC parameters to CLOCK, PACK, and NCHNS. It will then claim
buffers on the 6 and lock your KL10 job into core. Returns zero or -1 on success:
-1 means it had to wait for the DAC. Returns error 1 for user didn't want to
wait for the DAC and 2 if there was not enough core on the SIX.
The WAITFLAG determines whether DACINI will query the user as to whether he wants
to wait for the DAC. 0 means interrogate user and wait if he asks, 1 means always
wait (without asking) and -1 means never wait, never ask.
Disk must be opened in mode 17 (dump mode). Can be disk, new or old format UDP.
Track and BLK in DACPLA are irrelevant except for old format UDP.
(will get illegal UUO if disk not opened in mode 17).
CLOCK is actually the clock code, not the clock rate. This is 0 for 6.4 Kc,
1 for 12.8 Kc, 2 for 25.6 Kc, 3 for 51.2 Kc, and 4 for 102.4 Kc. This is the
clock rate per channel (not the overall clock rate). Pack should be 0 for
12-bit or 1 for 18-bit.
DACPLA
Queues up the sound in the dsk channel from word number STWORD for a total
of NWDS words. Transfer may still be running when this routine exits.
DACWAI
This waits for any transfers which were running to be finished. After
this call, the DAC will be idle.
DACREL
This releases the DAC, stops any transfer which might be running, and
releases the buffers on the six. It will release the SIX and the DAC.
⊗
; Accumulators, temp storage
↓ac1←4
↓ac2←5
↓ac3←6
↓ac4←7
↓ac5←10
↓ac6←11
↓ac7←13
↓ac8←14
↓ac9←15
↓p←17
.insert MESDEF[SIX,MUS]
adr: block 2 ; For IOWDS and stuff
data: block 3 ; For messages
; Message codes going to DAC
MSPAR←←1010 ; SET PARAMETERS. TAKES 9-BIT DATUM
MSTBUF←←1011 ; START BUFFER. TAKES WCMA AS DATUM.
MSTOP←←1012 ; DROP EVERYTHING
MQBUF←←1013 ; QUEUE BUFFER BUT DON'T START IT
MFSTB←←1015 ; FIRST BUFFER COMING
; Message codes coming from DAC
MBDONE←←1020 ; BUFFER DONE.
MHUNG←←1021 ; DEVICE IS HUNG.
MDMISS←←1022 ; HARDWARE DATA MISSED SEEN
MBMISS←←1023 ; BUFFER MISSED (RAN OFF END WITH NO WCMA READY)
MBOOB←←1025 ; BUFFER OUT OF BOUNDS
DACDEV←←2 ; DIGITAL-ANALOG CONVERTER DEVICE NUMBER
; = SPEED*1000+PACK*100+NCHANS
; NCHANS = 1 FOR MONO (2-BIT NUMBER)
; = 2 FOR STEREO
; = 0,3 FOR QUAD
; PACK = 0,3 FOR 12 BIT (2-BIT NUMBER)
; = 1 FOR 16 BIT (HALFWORD MODE)
; = 2 FOR FLOATING PT. INCREMENTAL
; SPEED = 0 FOR 6.4 KC (3-BIT NUMBER)
; = 1 FOR 12.8 KC
; = 2 FOR 25.6 KC
; = 3 FOR 51.2 KC
; = 4 FOR 102.4 KC
; = 5 FOR 204.8 KC
; Other storage . . .
oldfmt: 0 ; 0 for New fmt, ≠0 for old fmt udp
wcmas:
wcma1: 0 ; WCMA for buffer 1
wcma2: 0 ; for buffer 2
wcma3: 0 ; Set to zero if not needed
nxtwc: 0 ; 0, 1, or 2, for next buffer to fill
nq: 0 ; Number of xfrs in queue now (0, 1, 2, or 3)
dacchn: 0 ; Channel number for DAC
;;sixchn: 0 ; " for SIX
;;dskchn: 0 ; " for DSK
trklen←←=18*=128 ; Length of track for new fmt UDP or DSK
otrklen←←40+trklen ; Same for old fmt UDP
↓ntrks←←6 ; Number of tracks per buffer
;↓ntrks←←10 ; Number of tracks for SIXSYS without DDT
waited: 0 ; Set to -1 if we waited for DAC
; Error codes
enodac←←1 ; User doesn't want to wait for DAC
enocor←←2 ; Not enuf core on PDP-6
didwait←←-1 ; Did have to wait for DAC
; DACINI
;External integer procedure DACINI(Integer dskchn,sixchn,dacchn,clock,pack,nchns,waitflag(0));
DACINI: begin DACINI
watloc←←-1
ncloc←←-2
pakloc←←-3
clkloc←←-4
dacloc←←-5
sixloc←←-6
dskloc←←-7
pd←←10
nowait←←400
wait←←1000
setzm waited
move ac1,dskloc(p)
movem ac1,dskchn
dpb ac1,[point 4,dskc1,12]
devchr ac1, ; if 100000 bit in LH is on, and
; 200000 bit is off, is old-style udp
setom oldfmt
tlne ac1,100000
tlne ac1,200000
setzm oldfmt
move ac1,sixloc(p)
movem ac1,sixchn
dpb ac1,[point 4,sixc1,12]
dpb ac1,[point 4,sixc2,12]
dpb ac1,[point 4,sixc3,12]
dpb ac1,[point 4,sixc4,12]
dpb ac1,[point 4,sixc5,12]
dpb ac1,[point 4,sixc6,12]
dpb ac1,[point 4,sixc7,12]
dpb ac1,[point 4,sixc8,12]
dpb ac1,[point 4,sixc9,12]
dpb ac1,[point 4,sixc10,12]
dpb ac1,[point 4,sixc11,12]
dpb ac1,[point 4,sixc12,12]
dpb ac1,[point 4,sixc13,12]
dpb ac1,[point 4,sixc14,12]
push p,ac1
pushj p,mesini
move ac1,dacloc(p)
movem ac1,dacchn
dpb ac1,[point 4,dacc1,12]
dpb ac1,[point 4,dacc2,12]
dpb ac1,[point 4,dacc3,12]
dpb ac1,[point 4,dacc4,12]
dacc1: init 0,nowait
sixbit /DAC/
0
jrst [move ac1,watloc(p)
jumpl ac1,nodacx
jumpg ac1,dacc2
outstr [asciz /
DAC is busy. Will you wait? /]
inchwl ac1
pushj p,rdlf
caie ac1,"y"
cain ac1,"Y"
jrst dacc2
nodacx: movei 1,enodac ; Give "no DAC" error message
jrst xit]
sixc1: init 0,17
sixbit /SIX/
0
jrst 4,.
; = SPEED*1000+PACK*100+NCHANS
move ac1,[mspar,,dacdev]
movem ac1,data
movsi ac1,1
movem ac1,data+1
move ac1,clkloc(p)
lsh ac1,=3
or ac1,pakloc(p)
lsh ac1,=6
or ac1,ncloc(p)
movem ac1,data+2
move ac1,[iowd 3,data]
movem ac1,adr
setzm adr+1
sixc2: output 0,adr
movei ac1,ntrks*trklen
skipe oldfmt
movei ac1,ntrks*otrklen ; Get 4 tracks per buffer
movem ac1,data+2
movsi ac1,mgbuf
hllm ac1,data
sixc3: output 0,adr
sixc4: output 0,adr
sixc5: output 0,adr ; Ask for 3 buffers of identical size.
movei ac2,2
sixc6: input 0,adr ; Wait for message to come back
hlrz ac1,data
trne ac1,fncomp!fdmissed
jrst [outstr [asciz /DACINI - Incomplete message from PDP-6
/]
jrst mbtest]
mbtest: caie ac1,f6to10!mgbuf ; Ignore everything but buffer reply
jrst sixc6
skipl ac1,data+2
jrst nocore ; Hmmm. No core?
movem ac1,wcmas(ac2)
sojge ac2,sixc6
setzm nq ; Clear number of buffers in queue
setzm nxtwc
setz 1,
skipe waited
move 1,[didwait] ; Give -1 return for waited
xit: adjsp p,-pd
jrst @pd(p)
dacc2: init 0,wait
sixbit /DAC/
0
jrst 4,.
setom waited
jrst sixc1
nocore: movsi ac1,mdblast ; Forget everything we ever know about device
hllm ac1,data
move ac1,[iowd 1,data]
movem ac1,data+1
sixc7: output 0,adr
movei 1,enocore
dacc3: release 0, ; Release dummy DAC device
setzm wcma1
setzm wcma2
setzm wcma3
jrst xit
rdlf: cain ac1,12
popj p,
rdlf1: inchwl ac9
cain ac9,175
jrst isalt
caie ac9,12
jrst rdlf1
popj p,
isalt: outstr [asciz /
/]
popj p,
bend DACINI
; DACPLA
;External integer procedure DACPLA(Integer stword,nwds,track(0),blk(0));
; Uses . . .
;External procedure DSK6RD(integer dchan,nwds,p3addr,track(0),blk(0));
;External procedure DSK6WR(integer dchan,nwds,p3addr,track(0),blk(0));
;DAC may be running when we enter.
DACPLA: begin DACPLA
integer offset ; Number of words in first buffer to be ignored
integer track
integer block ; For old mode
integer nwltt ; Number of words left this track
integer ndwfb ; Number of words in first buffer (from disk) total
integer nwfb ; Number of data words in first buffer (for DAC)
blkloc←←-1
trkloc←←-2
nwdloc←←-3
stwloc←←-4
pd←←5
setz 1,
skipg nwdloc(p) ; Anybody home?
jrst xit ; No, leave now
skipe wcma1
skipn wcma2
jrst [movei 1,enocore
jrst xit]
skipn wcma3
jrst [movei 1,enocore
jrst xit]
skipe oldfmt
jrst isold
move ac1,stwloc(p)
move ac2,ac1
andi ac2,177
movem ac2,offset
lsh ac1,-7
addi ac1,1
↑dskc1: useti 0,(ac1)
move ac1,stwloc(p)
idivi ac1,trklen
movn ac2,ac2
addi ac2,trklen
movem ac2,nwltt
addi ac2,<ntrks-1>*trklen
movem ac2,nwfb
jrst allgo
isold: move ac1,trkloc(p)
imuli ac1,otrklen
move ac2,blkloc(p)
caige ac2,1
jrst nocorr
addi ac1,40
subi ac2,1
lsh ac2,7
addi ac1,(ac2) ; Convert to word number on UDP
nocorr: add ac1,stwloc(p)
idivi ac1,otrklen ; And back to track-block
movem ac1,track
movni ac3,(ac2) ; Pick up number of words used this track
addi ac3,otrklen
movem ac3,nwltt ; Set number words left this track
addi ac3,<ntrks-1>*otrklen
movem ac3,nwfb
caige ac2,40
jrst [setzm block
jrst setoff]
subi ac2,40
move ac1,ac2
andi ac2,177
lsh ac1,-7
addi ac1,1
movem ac1,block
setoff: movem ac2,offset
allgo: push p,dskchn
move ac1,nwfb
camle ac1,nwdloc-1(p)
move ac1,nwdloc-1(p) ; Don't do any more than we have to!
movem ac1,ndwfb
add ac1,offset ; Make sure we get all of first record
push p,ac1
move ac2,nxtwc
hrrz ac1,wcmas(ac2)
push p,ac1
push p,track
push p,block
move ac1,nq ; How many are queued?
cail ac1,3 ; If more than 3, must wait
pushj p,wait1 ; Wait until that first buffer is free
pushj p,dsk6rd ; Fill it
move ac2,nxtwc ; Pick up buffer number (0, 1, or 2)
movn ac1,ndwfb ; This has been truncated to length of file
addm ac1,nwdloc(p) ; Note that many more words gone by
movs ac1,ac1 ; Make up WCMA for transfer
hrr ac1,wcmas(ac2) ; Put address of buffer on 6 in RH
add ac1,offset ; Offset for partial first buffer (if any)
movem ac1,data+2
move ac1,[mstbuf,,dacdev]
movem ac1,data
movsi ac1,1
movem ac1,data+1
move ac1,[iowd 3,data]
movem ac1,adr
↑sixc8: output 0,adr
aos nq ; Note one more in the queue
sosge ac1,nxtwc
movei ac1,2
movem ac1,nxtwc
skipg nwdloc(p)
jrst alldone
setzm offset
movei ac1,ntrks*trklen
skipe oldfmt
movei ac1,ntrks*otrklen
movem ac1,nwfb
movei ac1,ntrks
addm ac1,track
setzm block
jrst allgo
alldone:setz 1,
xit: adjsp p,-pd
jrst @pd(p)
bend DACPLA
; WAIT1 - Wait for a buffer done message
WAIT1: move ac1,[iowd 3,data]
movem ac1,adr
sixc9: input 0,adr
hlrz ac1,data
trne ac1,fncomp!fdmissed
jrst [outstr [asciz /DACPLA - incomlete message from 6!
/]
jrst wattst]
wattst: andi ac1,7777
cain ac1,mhung
jrst [outstr [asciz /DACPLA - DAC is HUNG!
/]
jrst gotit] ; Hung message takes place of done message
cain ac1,mboob
jrst [outstr [asciz /DACPLA - buffer out of bounds?!?!!?
/]
jrst gotit] ; this message also takes place of done message
cain ac1,mdmiss
jrst [outstr [asciz /DACPLA - DAC Data missed!
/]
jrst sixc9]
cain ac1,mbmiss
jrst [outstr [asciz /DACPLA - DAC buffer missed!
/]
jrst sixc9]
caie ac1,mbdone
jrst sixc9
gotit: sosl nq ; Note one less in queue
cpopj: popj p,
outstr [asciz /DACPLA - Buffer queue underflow
/]
jrst 4,cpopj
; DACWAI - Wait for all xfrs to finish
DACWAI: skipg nq
jrst sfstbm
pushj p,wait1
jrst dacwai
sfstbm: move ac1,[fnowds!mfstb,,dacdev]
movem ac1,data
move ac1,[iowd 1,data]
movem ac1,adr
sixc14: output 0,adr ; Clear "buffers finished" count
popj p,
; DACREL - release the device
DACREL: move ac1,[iowd 1,data]
movem ac1,adr
move ac1,[fnowds!mdblast,,dacdev]
movem ac1,data
sixc10: output 0,adr
move ac1,[iowd 3,data]
movem ac1,adr
move ac1,wcma1
movem ac1,data+2
move ac1,[mgivb,,dacdev]
movem ac1,data
movsi ac1,1
movem ac1,data+1
sixc11: output 0,adr
move ac1,wcma2
movem ac1,data+2
sixc12: output 0,adr
move ac1,wcma3
movem ac1,data+2
sixc13: output 0,adr
setzm wcma1
setzm wcma2
setzm wcma3
dacc4: release 0,
popj p,
END