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dlsint.mac
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$RELOC
$HIGH
;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
; OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.
;
;COPYRIGHT (C) 1973,1974,1975,1976,1977,1978 BY DIGITAL EQUIPMENT CORP., MAYNARD, MASS.
DEFINE ISRNAM(N),<
TITLE DL'N'INT -- INTERRUPT SERVICE FOR DC10 - NUMBER N - V534
SUBTTL /RCC/DAL -11 NOV 75
XP VDL'N'IT,534
IFG N-1,< PRINTX ?ONLY 2 DC10S ON ANY DECSYSTEM-10>
ENTRY DL'N'INT ;FOR LINK-10
DL'N'INT::CONSO DLS,30
JRST .-1
JRST DLSINT
DSCOFS==DSCOF'N## ;OFFSET INTO DSCTAB
DL'N'DSP::JRST SCNTYP ;DATA OUT
IFN FTMODM,<
JRST DSCTYP ;DATA SET CONTROL
>
IFE FTMODM,<
POPJ P,0
>
JRST SCNCHK ;PI TEST
JRST DLSINI ;INIT
IFN FTD10H <
JRST DLSCHP ;CHANGE HARDWARE PARAMETERS
JRST DLSLPC ;SEND LINE PARAMETER CONTOL MSG
JRST DLSELE ;SET ELEMENT #
>;END OF IFN FTD10H
IFE FTD10H,<
POPJ P, ;CHANGE HARDWARE PARMS
POPJ P, ;LINE PARM CTL
POPJ P, ;SET ELEMENT
>;END IFE FTD10H
POPJ P, ;REMOTE STATION STUFF
JRST DLSOFL ;OFF LINE TEST
DLSMXD==DL'N'MXD## ;MAX LINE NUMBER
DLSMXL==DL'N'MXL## ;MAXIMUM DATASET NUMBER
DLSOFS==DL'N'OFS## ;OFFSET FROM HARDWARE TO LINTAB
IFE N,<
DLS==240 ;HARDWARE ADDRESS
>
IFE <N-1>,<
DLS==244
>>
IFNDEF DLSNUM,<DLSNUM==0>
ISRNAM(\DLSNUM)
;BITS IN T3 TO COMMUNICATE WITH THE HARDWARE (CONSIDERING 680 AS HARDWARE)
USDRLN==100 ;USE DIRECTED LINE NUMBER
TDSABL==400 ;TRANSMIT DISABLE
RCVBIT==400 ;DATAI FROM DLS OR 680 WAS RECEIVE
;INT, NOT XMT DONE
DLSOHE==100 ;OFF-HOOK ENABLE TO DC10E
DLSART==200 ;REQUEST ARTIFICIAL INTERRUPT FROM DC10E
DLSCAR==4 ;CARRIER IS ON, IN DC10E DATAI
DLSRNG==2 ;LINE RINGING, IN DC10E DATAI
DLSCRQ==40 ;CALL REQUEST, DATAO
DLSDPR==20 ;DIGIT PRESENT, DATAO
DLSPND==20 ;PRESENT NEXT DIGIT, DATAI
IFN FTD10H,<
;TRANSLATION TABLES
; BIT 100 IS UPSHIFT
; BITS 77 ARE CHARACTER
BCDEOA==64 ;START OF MESSAGE
BCDEOT==174 ;END OF MESSAGE
BCDUCS==034 ;UPPERCASE SHIFT
BCDLCS==037 ;LOWERCASE SHIFT
BCDETS: BYTE (9)400+BCDLCS,400+BCDEOT,0
BCDEAS: BYTE (9)400+BCDEOA,400+BCDLCS,0
;THE FOLLOWING DEFINES SOME BCD CODES
; OTHERS COULD BE SUBSTITUTED
;
; COLUMN 1 IS ASCII EQUIVALENT
; COLUMN 2 IS APL(CORRESPONDENCE)
; COLUMN 3 IS CORRESPONDENCE
; COLUMN 4 IS CALL 360 BASIC
; COLUMN 5 IS EBCD
; COLUMN 6 IS APL(EBCD)
; COLUMN 7 IS BCD
; COLUMN 8 IS RESERVED FOR CUSTOMER DEFINITION
DEFINE BCDELM,<
X ^D0,^D987,^D029,^D087,^D963,^D988,^D938,^D000
>
DEFINE BCDXOU < XLIST
X 000,075,075,075,075,075,075,075 ;NULL OR BREAK
X 001,075,075,075,075,075,075,075 ; ^A
X 002,064,064,064,064,064,064,064 ;EOA START OF TEXT
X 003,075,075,075,075,075,075,075 ; ^C
X 004,074,074,074,074,074,074,074 ;EOT
X 005,075,075,075,075,075,075,075 ; ^E
X 006,075,075,075,075,075,075,075 ; ^F
X 007,075,075,075,075,075,075,075 ; ^G
X 010,035,035,035,035,035,035,035 ; ^H BACKSPACE
X 011,057,057,057,057,057,057,057 ; TAB
X 012,056,056,056,056,056,056,056 ;LF - INDEX
X 013,075,075,075,075,075,075,075 ; ^K
X 014,075,075,075,075,075,075,075 ; ^L
X 015,055,055,055,055,055,055,055 ;CR
X 016,075,075,075,075,075,075,075 ; ^N
X 017,075,075,075,075,075,075,075 ; ^O
X 020,075,075,075,075,075,075,075 ; ^P
X 021,075,075,075,075,075,075,075 ; ^Q
X 022,075,075,075,075,075,075,075 ; ^R
X 023,075,075,075,075,075,075,075 ; ^S
X 024,075,075,075,075,075,075,075 ; ^T
X 025,075,075,075,075,075,075,075 ; ^U
X 026,075,075,075,075,075,075,075 ; ^V
X 027,075,075,075,075,075,075,075 ; ^W
X 030,075,075,075,075,075,075,075 ; ^X
X 031,075,075,075,075,075,075,075 ; ^Y
X 032,075,075,075,075,075,075,075 ; ^Z
X 033,075,075,075,075,075,075,121 ;ALTMODE
X 034,075,075,075,075,075,075,075 ; ^\
X 035,075,075,075,075,075,075,075 ;^]
X 036,075,075,075,075,075,075,075 ; ^^
X 037,075,075,075,075,075,075,075 ;^_
X 040,000,000,000,000,000,000,000 ;SPACE
X 041,141,001,142,165,111,165,153 ;"!" (APL-BALL SHIFT M)
X 042,140,111,120,164,140,170,111 ; DOUBLE QUOTE
X 043,130,160,145,064,130,102,011 ;"#"
X 044,170,104,152,065,104,065,053 ;"$"
X 045,123,110,124,150,103,110,110 ;"%"
X 046,101,150,144,003,102,164,023 ;"&"
X 047,132,011,140,130,121,002,130 ;APOSTROPHE(APL-BALL SHIFT K)
X 050,153,164,053,144,165,150,164 ;"("
X 051,111,144,011,124,164,120,144 ;")"
X 052,113,170,023,104,171,104,170 ;"*" (APL-BALL SHIFT P)
X 053,067,123,067,103,001,003,123 ;"+"
X 054,073,073,073,066,066,066,073 ;","
X 055,167,067,167,001,101,001,067 ;"-"
X 056,021,021,021,067,067,067,021 ;"."
X 057,007,007,123,042,042,042,007 ;"/"
X 060,044,044,044,024,024,024,044 ;"0"
X 061,040,040,040,040,040,040,040 ;"1"
X 062,020,020,020,020,020,020,020 ;"2"
X 063,060,060,060,060,060,060,060 ;"3"
X 064,004,004,004,010,010,010,004 ;"4"
X 065,010,010,010,050,050,050,010 ;"5"
X 066,030,030,030,030,030,030,030 ;"6"
X 067,050,050,050,070,070,070,050 ;"7"
X 070,070,070,070,004,004,004,070 ;"8"
X 071,064,064,064,044,044,044,064 ;"9"
X 072,121,153,121,110,167,130,104 ;":"
X 073,173,053,173,160,166,160,160 ;";"
X 074,160,130,160,120,160,103,120 ; LEFT ANGLE BRACKET
X 075,110,023,001,140,150,064,140 ;"="
X 076,150,101,150,170,170,140,150 ; RIGHT ANGLE BRACKET
X 077,133,107,161,142,105,142,107 ;"?"(APL-BALL SHIFT Q)
X 100,171,120,171,002,143,043,001 ;"@"(APL-BALL IS ALPHA)
X 101,071,171,071,143,043,143,171 ;"A"
X 102,066,166,066,123,023,123,166 ;"B"
X 103,072,172,072,163,063,163,172 ;"C"
X 104,052,152,052,113,013,113,152 ;"D"
X 105,012,112,012,153,053,153,112 ;"E"
X 106,063,163,063,133,033,133,163 ;"F"
X 107,043,143,043,173,073,173,143 ;"G"
X 110,046,146,046,107,007,107,146 ;"H"
X 111,031,131,031,147,047,147,131 ;"I"
X 112,003,103,003,141,041,141,103 ;"J"
X 113,032,132,032,121,021,121,132 ;"K"
X 114,006,106,006,161,061,161,106 ;"L"
X 115,041,141,041,111,011,111,141 ;"M"
X 116,022,122,022,151,051,151,122 ;"N"
X 117,005,105,005,131,031,131,105 ;"O"
X 120,013,113,013,171,071,171,113 ;"P"
X 121,033,133,033,105,005,105,133 ;"Q"
X 122,051,151,051,145,045,145,151 ;"R"
X 123,045,145,045,122,022,122,145 ;"S"
X 124,002,102,002,162,062,162,102 ;"T"
X 125,062,162,062,112,012,112,162 ;"U"
X 126,061,161,061,152,052,152,161 ;"V"
X 127,065,165,065,132,032,132,165 ;"W"
X 130,042,142,042,172,072,172,142 ;"X"
X 131,047,147,047,106,006,106,147 ;"Y"
X 132,024,124,024,146,046,146,124 ;"Z"
X 133,053,130,104,102,065,144,130 ;"["
X 134,107,007,164,166,142,101,007 ;"\"
X 135,011,101,130,167,064,124,101 ;"]"
X 136,147,140,113,166,106,165,173 ;"^"(APL-BALL SHIFT Y)
X 137,001,167,163,101,002,164,167 ;"_"
X 140,025,011,103,130,141,002,101 ; ACCENT GRAVE
X 141,101,071,071,043,102,043,071 ;LC "A"(APL-BALL IS RT ARROW)
X 142,166,066,066,023,123,023,066 ;LC "B"
X 143,172,072,072,063,163,063,072 ;LC "C"
X 144,152,052,052,013,113,013,052 ;LC "D"
X 145,112,012,012,053,153,053,012 ;LC "E"
X 146,163,063,063,033,133,033,063 ;LC "F"
X 147,143,043,043,073,173,073,043 ;LC "G"
X 150,146,046,046,007,107,007,046 ;LC "H"
X 151,131,031,031,047,147,047,031 ;LC "I"
X 152,103,003,003,041,141,041,003 ;LC "J"
X 153,104,032,032,021,110,021,032 ;LC "K"(APL-BALL SHIFT 4)
X 154,106,006,006,061,161,061,006 ;LC "L"
X 155,120,041,041,011,120,011,041 ;LC "M"(APL-BALL SHIFT 2)
X 156,122,022,022,051,151,051,022 ;LC "N"
X 157,105,005,005,031,131,031,005 ;LC "O"
X 160,023,013,013,071,003,071,013 ;LC "P"(APL-BALL MULTIPLY SIGN
X 161,164,033,033,005,144,005,033 ;LC "Q"(APL BALL SHIFT 9)
X 162,151,051,051,045,145,045,051 ;LC "R"
X 163,145,045,045,022,122,022,045 ;LC "S"
X 164,102,002,002,062,162,062,002 ;LC "T"
X 165,162,062,062,012,112,012,062 ;LC "U"
X 166,161,061,061,052,152,052,061 ;LC "V"
X 167,165,065,065,032,132,032,065 ;LC "W"
X 170,142,042,042,072,172,072,042 ;LC "X"
X 171,144,047,047,006,124,006,047 ;LC "Y"(APL-BALL IS TEEPEE)
X 172,124,024,024,046,146,046,024 ;LC "Z"
X 173,075,075,075,075,075,075,075 ;173
X 174,075,075,075,075,075,075,075 ;174
X 175,075,075,075,075,075,075,075 ;175 = ALTMODE
X 176,075,075,075,075,075,075,075 ;176 = ALTMODE
X 177,075,075,075,075,075,075,035 ;RUBOUT - BECOMES IDLE
LIST > ;END OF BCDXOU
;THE FOLLOWING DEFINES THE TRANSLATION OF CHARACTERS ON INPUT FROM A BCD LINE
;
IFNDEF STDALT,<XP STDALT,033>
DEFINE BCDXIN < XLIST
X 000,040,040,040,040,040,040,040 ;SPACE
X 001,137,041,075,055,053,055,100
X 002,124,164,124,100,137,047,164
X 003,112,152,112,046,160,053,152
X 004,064,064,064,070,070,070,064
X 005,117,157,117,161,121,161,157
X 006,114,154,114,171,131,171,154
X 007,057,057,000,150,110,150,057
X 010,065,065,065,064,064,064,065
X 011,135,047,051,155,115,155,043
X 012,105,145,105,165,125,165,145
X 013,120,160,120,144,104,144,160
X 014,000,000,000,000,000,000,000
X 015,000,000,000,000,000,000,000
X 016,000,000,000,000,000,000,000
X 017,000,000,000,000,000,000,000
X 020,062,062,062,062,062,062,062
X 021,056,056,056,153,113,153,056
X 022,116,156,116,163,123,163,156
X 023,160,075,052,142,102,142,046
X 024,132,172,132,060,060,060,172
X 025,000,000,000,000,000,000,000
X 026,000,000,000,000,000,000,000
X 027,000,000,000,000,000,000,000
X 030,066,066,066,066,066,066,066
X 031,111,151,111,157,117,157,151
X 032,113,153,113,167,127,167,153
X 033,121,161,121,146,106,146,161
X 034,000,000,000,000,000,000,000 ;UC SHIFT
X 035,177,177,177,177,177,177,010 ;BACKSPACE
X 036,000,000,000,000,000,000,000
X 037,000,000,000,000,000,000,000 ;LC SHIFT
X 040,061,061,061,061,061,061,061
X 041,115,155,115,152,112,152,155
X 042,130,170,130,057,057,057,170
X 043,107,147,107,141,101,141,147
X 044,060,060,060,071,071,071,060
X 045,123,163,123,162,122,162,163
X 046,110,150,110,172,132,172,150
X 047,131,171,131,151,111,151,171
X 050,067,067,067,065,065,065,067
X 051,122,162,122,156,116,156,162
X 052,104,144,104,166,126,166,144
X 053,133,073,050,145,105,145,044
X 054,000,000,000,000,000,000,000
X 055,015,015,015,015,015,015,015 ;CARRIAGE RETURN/LF
X 056,012,012,012,012,012,012,012 ;LINE FEED
X 057,011,011,011,011,011,011,011 ;TAB
X 060,063,063,063,063,063,063,063
X 061,126,166,126,154,114,154,000
X 062,125,165,125,164,124,164,000
X 063,106,146,106,143,103,143,000
X 064,071,071,071,043,135,075,000
X 065,127,167,127,044,133,044,000
X 066,102,142,102,054,054,054,000
X 067,053,055,053,056,056,056,000
X 070,070,070,070,067,067,067,000
X 071,101,141,101,160,120,160,000
X 072,103,143,103,170,130,170,000
X 073,054,054,054,147,107,147,000
X 074,000,000,000,000,000,000,000 ;EOT
X 075,000,000,000,000,000,000,000 ;IDLE
X 076,000,000,000,000,000,000,000
X 077,000,000,000,000,000,000,000 ;CD
X 100,040,040,040,040,040,040,040 ;SPACE
X 101,141,135,000,137,055,134,000
X 102,164,124,000,133,141,043,000
X 103,152,112,140,053,045,074,000
X 104,153,044,133,052,044,052,072
X 105,157,117,000,121,077,121,117
X 106,154,114,000,131,136,131,114
X 107,134,077,000,110,150,110,077
X 110,075,045,075,072,153,000,045
X 111,051,042,000,115,041,115,042
X 112,145,105,000,125,165,125,105
X 113,052,120,136,104,144,104,120
X 114,000,000,000,000,000,000,000
X 115,000,000,000,000,000,000,000
X 116,000,000,000,000,000,000,000
X 117,000,000,000,000,000,000,000
X 120,155,100,042,074,155,051,074
X 121,072,056,072,113,047,113,033
X 122,156,116,000,123,163,123,116
X 123,045,053,057,102,142,102,053
X 124,172,132,045,051,171,000,132
X 125,000,000,000,000,000,000,000
X 126,000,000,000,000,000,000,000
X 127,000,000,000,000,000,000,000
X 130,043,133,135,047,043,072,047
X 131,151,111,000,117,157,117,111
X 132,047,113,000,127,167,127,113
X 133,077,121,000,106,146,106,121
X 134,000,000,000,000,000,000,000
X 135,177,177,177,177,177,177,177
X 136,000,000,000,000,000,000,000
X 137,000,000,000,000,000,000,000
X 140,042,136,047,075,042,076,075
X 141,041,115,000,112,152,112,115
X 142,170,130,041,077,134,077,130
X 143,147,107,000,101,100,101,107
X 144,171,051,046,050,161,133,051
X 145,163,123,043,122,162,122,123
X 146,150,110,000,132,172,132,110
X 147,136,131,000,111,151,111,131
X 150,076,046,076,045,075,050,076
X 151,162,122,000,116,156,116,122
X 152,144,104,044,126,166,126,104
X 153,050,072,000,105,145,105,041
X 154,000,000,000,000,000,000,000
X 155,015,015,015,015,015,015,015 ;CARRIAGE RETURN/LF
X 156,012,012,012,012,012,012,012 ;LINE FEED
X 157,011,011,011,011,011,011,011 ;TAB
X 160,074,043,074,073,074,073,073
X 161,166,126,077,114,154,114,126
X 162,165,125,000,124,164,124,125
X 163,146,106,137,103,143,103,106
X 164,161,050,134,042,051,000,050
X 165,167,127,000,041,050,041,127
X 166,142,102,000,136,073,054,102
X 167,055,137,055,135,072,056,137
X 170,044,052,044,076,076,042,052
X 171,100,101,100,120,052,120,101
X 172,143,103,143,130,170,130,103
X 173,073,054,073,107,147,107,136
X 174,000,000,000,000,000,000,000 ;EOT
X 175,000,000,000,000,000,000,000 ;IDLE
X 176,000,000,000,000,000,000,000
X 177,000,000,000,000,000,000,000 ;CD
LIST > ;END OF DEFINITION OF BCDXIN
;THE FOLLOWING IS THE EXPANSION OF THE TRANSLATION TABLES
;
;
;TO CHANGE WHICH CHARACTER SETS ARE USED CHANGE THE DEFINITION OF
; THE X MACRO BELOW
; NOTE THAT LAST SET IN Y MACRO IS DEFAULT ON MONITOR RELOAD AND DATASET ANSWER
DEFINE X(A,APL.CR,CORR,CBASIC,EBCD,APL.EB,BCD,CUST),<
Y CBASIC, BCD, CORR, APL.EB, EBCD>
DEFINE Y(CD4,CD3,CD2,CD1,CD0),<
EXP CD0, CD1, CD2, CD3, CD4 >
BCDSET: BCDELM
DEFINE Y(CD4,CD3,CD2,CD1,CD0),<
BYTE (1)0(7)CD4,CD3,CD2,CD1,CD0 >
BCDIN: BCDXIN
BCDOUT: BCDXOU
EXTERN LDBBCD
; LH 400000 IF LINE IS BCD
BCDKBL==200000 ;IF KEYBOARD IS LOCKED
BCDPRL==100000 ;IF PRINTER IS LOCKED
BCDUPS==040000 ;IF IN UPPERSHIFT MODE
BCDMSK==020000 ;LINE TURNING AROUND
; IE WE HAVE A REQUEST IN CLOCK QUEUE
BCDXRB==010000 ;SENDING REVERSE BREAK
; BCDHDB==004000 ;TERMINAL DOESN'T HAVE DEBREAK FEATURE
BCDOCR==002000 ;LAST CHARACTER OUT WAS A CR
BCDRCR==001000 ;LAST CHARACTER RECEIVED WAS A CR
BCDCON==000400 ;LAST CHARACTER IN WAS "CONTROL" FAN
BCDCDB==000200 ;LAST TIME WE REVERSED LINE IT WAS BECAUSE
; WE NEEDED INPUT
BCDAPL==000100 ;BREAK IS TO BE TREATED AS ^C^C
;BITS 15-17 SPECIFY CHARACTER SET.
;RH BITS 18-24 CHAR TO BE TYPED AS SOON
; AS SHIFT HAS BEEN SENT
;RH BITS 25-31 ARE ZERO.
;BITS 32-35 ARE HPOS/8
;BCDVRG=400000!BCDHDB!BCDPRL ;VIRGIN BITS FOR A BCD LINE
BCDPCD: POINT 3,LDBBCD(U),17
BCDPCH: POINT 7,LDBBCD(U),24
BCDPC1: POINT 7,LDBBCD(U),17
;FILLERS FOR DC10H
;
BCDF13: BYTE (9) 377,377,377,377
BYTE (9) 377,377,377,377
BYTE (9) 377,377,377,377
BCDF01: BYTE (9) 377,0,0,0
> ;END OF FTD10H CONDITIONAL
;DEVICE-DEPENDENT PORTION OF INITIALIZATION CODE
;CALL: PUSHJ P,SCNINI
DLSINI: CONO DLS,40 ;I/O RESET TO DC10
SETZM DLSERR ;CLEAR COUNT OF LOST PI ERRORS
CONO DLS,SCNCHN## ;ASSIGN ITS PI
POPJ P,0 ;RETURN FROM DLSINI
DLSOFL: CONSZ DLS,7
JRST CPOPJ1##
PUSHJ P,SCNCHK
CONSZ DLS,7
AOS (P)
POPJ P,0
DLSINT: JSR SCNSAV## ;YES. GET AC'S AND P
DATAI DLS,T3 ;GET WHAT THE DC10 SAID
SCNNT1: HLRZ U,T3 ;GET THE HARDWARE LINE NUMBER
TRNE T3,RCVBIT ;RECEIVE OR TRANSMIT?
JRST SCNREC ;RECEIVE.
DATAO DLS,[TDSABL] ;TRANSMIT. FIRST CLEAR FLAG
CAILE U,DLSMXD ;LEGAL LINE NUMBER?
POPJ P, ;NO--DO NOT KICK SCNSER
ADDI U,DLSOFS ;YES--CONVERT TO LINTAB INDEX
IFE FTD10H <
JRST XMTINT## ;CALL SCNSER
>;END OF IFE FTD10H
IFN FTD10H <
MOVE T2,LINTAB(U) ;GET LDB ADR
HLL T2,LDBBCD(T2) ;GET 2741 STATUS BITS
MOVEI T1,LDR274 ;FLAG FOR 2741 LINES
TDNE T1,LDBDCH(T2) ;IS LINE A 2741 ?
TLNN T2,BCDPRL!BCDXRB!BCDMSK ;IS LINE SENDING A REVERSE BREAK ?
JRST XMTINT## ;CALL SCNSER
TLNN T2,BCDXRB!BCDMSK ;CHECK FOR SPECIAL TIMERS
SKIPN T1,LDBXNP(T2) ;GET XOF(EOT, ETC) LEVEL POINTER
POPJ P, ;IGNORE XMT INTERRUPT
ILDB T1,T1 ;GET IT
JUMPN T1,XMTINT##
SETZM LDBXNP(T2) ;CLEAR XOF POINTER
MOVSI T1,LDLOIP ;BIT FOR OUTPUT IN PROGRESS
ANDCAM T1,LDBDCH(T2) ;CLEAR IT
POPJ P,
>;END OF IFN FTD10H
IFN FTD10H,<
;CHANGE HARDWARE PARAMETERS
DLSCHP: POPJ P,
;SEND LINE PARAMETER CONTOL MSG
; SUBFUNCTION IS IN T3
DLSLPC: CAIN T3,<LPCUKB>B27 ;WANT TO UNLOCK KYBD ?
JRST BCDGIV ;GIVE UP LINE
POPJ P, ;NO IGNORE
;SET ELEMENT #
DLSELE: MOVSI T2,-5 ;SO WE DON'T CHECK BEYOND TABLE END
CAME T3,BCDSET(T2) ;ELEMENT MATCH ONE IN TABLE?
AOBJN T2,.-1 ;NO, LOOP FOR MORE.
JUMPGE T2,CPOPJ## ;EXIT IF NOT FOUND.
DPB T2,BCDPCD ;PUT ELEMENT CODE IN LDB
PJRST CPOPJ1## ;GIVE GOOD RETURN (+1)
>;END FTD10H
SCNREC: CAIG U,DLSMXD ;DATASET CONTROL OR JUST DATA?
JRST SCNRC0 ;HAVE RECEIVED DATA
IFE FTMODM,<
POPJ P,0 ;JUNK
>
IFN FTMODM,<
CAILE U,DLSMXL ;LEGAL DC10E LINE?
POPJ P,0 ;NO. JUNK IT.
DSCRCV: SUBI U,DSCOFS ;CONVERT TO TABLE ADDRESS
IFN FTDIAL,<
ANDI T3,DLSCAR!DLSRNG!DLSPND
>
IFE FTDIAL,<
ANDI T3,DLSCAR!DLSRNG
> ;SELECT MEANINGFUL BITS
MOVE T1,DSCTAB##(U) ;GET CONTROL BITS
IFN FTDIAL,<
TLNN T1,DSCDLW## ;IN DIALLER CODE?
TRZ T3,DLSPND ;NO, IGNORE DIALLER
>
HRR T1,T3 ;COPY HARDWARE BITS
TRNE T3,DLSCAR ;CARRIER ON?
TLC T1,DSCHWC## ;YES. XOR THE TWO BITS
TLNE T1,DSCHWC## ;CARRIER CHANGE?
JRST DSCRC1 ;YES. THATS MAIN FLAG.
IFN FTDIAL,<
MOVEI T3,DSTPND## ;PRESENT NEXT DIGIT
TRNE T1,DLSPND ;IS THAT IT?
JRST DSCREC## ;YES.
>
MOVEI T3,DSTRNG## ;RING TRANSACTION CODE
TRNE T1,DLSRNG ;IS IT A RING?
JRST DSCREC## ;YES. INFORM SCNSER
DSCRC1: MOVEI T3,DSTOFF## ;NO. TRY OFF TRANSACTION
TRNE T1,DLSCAR ;CARRIER ON?
MOVEI T3,DSTON ;YES. ON-COMING TRANSACTION
JRST DSCREC## ;PASS TO SCNSER
> ;END OF FTMODM
SCNRC0: ADDI U,DLSOFS ;CONVERT TO LINTAB INDEX
IFN FTD10H <
MOVE U,LINTAB(U)
MOVEI T1,LDR274## ;BIT FOR 2741 LINES
TDNN T1,LDBDCH##(U) ;IS LINE A 2741 ?
JRST BCDRC9 ;NO
HLL U,LDBBCD(U) ;GET SPECIAL BITS FOR 2741'S
ANDI T3,177 ;STRIP HDW BITS
JUMPE T3,BCDRBK ;SPECIAL HANDLING FOR BREAK
ANDI T3,0077 ;FLUSH PARITY
TLNN U,BCDRCR ;IF LAST CHAR WAS CR THEN THIS MUST BE EOT
CAIN T3,BCDEOT&077
JRST BCDREO
TLNE U,BCDKBL ;KEYBOARD LOCKED?
JRST BCDREA ;YES SO IT MIGHT BE AN EOA
CAIN T3,BCDUCS&077 ;UPSHIFT?
JRST BCDRUS
CAIN T3,BCDLCS&077 ;DOWNSHIFT?
JRST BCDRDS
MOVSI T1,BCDOCR!BCDRCR
CAIN T3,155&077 ;WAS THIS A CRLF?
IORM T1,LDBBCD(U) ;REMEMBER IT
TLNE U,BCDUPS ;IN UPPERCASE SHIFT?
SKIPA T3,BCDIN+100(T3) ;INCREASE DISPLACEMENT IN TABLE
MOVE T3,BCDIN(T3) ;GET TRANSLATION WORD
LDB T1,BCDPCD ;GET CODE #
SOJL T1,.+3
LSH T3,-7
JRST .-2
ANDI T3,177 ;LEAVE ONLY 7 ASCII BITS
TLNE U,BCDAPL ;APL MODE?
JRST BCDRC6 ;YES SO NO "CONTROL" TESTS
TLZN U,BCDCON ;IS THIS REALLY A CONTROL CHAR?
JRST BCDRC5
HLLM U,LDBBCD(U)
CAIL T3,"A"
CAILE T3,"Z"+40
JRST BCDRV4
CAIGE T3,"A"+40
CAIG T3,"Z"
ANDI T3,37 ;MAKE INTO CONTROL CHAR
BCDRV4: CAIN T3,"$"
MOVEI T3,STDALT ;HE WINS A ALTMODE
CAIE T3,"("
CAIN T3,"<"
JRST BCDCB1
CAIE T3,")"
CAIN T3,">"
JRST BCDCB2
CAIN T3,"["
MOVEI T3,"<"
CAIN T3,"]"
MOVEI T3,">"
CAIN T3,"/"
MOVEI T3,"\"
JRST BCDRC7
BCDCB1: SKIPA T3,["["]
BCDCB2: MOVEI T3,"]"
JRST BCDRC7 ;SO A SECOND ^ IS AN ^
BCDRC5: CAIE T3,"^" ;WAS THIS THE MAGIC CHAR?
JRST BCDRC7 ;NO
MOVSI T1,BCDCON
IORM T1,LDBBCD(U)
POPJ P,
;HERE FOR SPECIAL TRANSLATIONS FOR APL MODE
BCDRC6: CAIN T3,177 ;DID USER STRIKE BACKSPACE KEY ?
MOVEI T3,010 ;YES SO GIVE HIM A BACKSPACE
CAIN T3,STDALT ;DID USER STRIKE NOT EQUAL ?
MOVEI T3,044 ;YES SO GIVE HIM A "$"
BCDRC7: JUMPE T3,BCDRC8 ;IGNORE IDLES ETC
MOVSI T1,BCDRCR ;IF NOT A CR CLEAR
CAIE T3,15
ANDCAM T1,LDBBCD(U)
PUSHJ P,BCDRC9 ;PUT CHAR IN BUFFERS
BCDRC8: ;SKIPLE LDBECC##(U) ;CHARS TO ECHO?
;PJRST XMTECH ;SHIFT THROUGH ECHO PROCESS
POPJ P, ;NO
BCDRC9: LDB U,LDPLNO ;GET LINE NUMBER AGAIN
>;END OF IFN FTD10H
JRST RECINT## ;CALL SCNSER
IFN FTD10H <
;HERE IF RECEIVE AN UPSHIFT CHARACTER
BCDRUS: TLOA U,BCDUPS
BCDRDS: TLZ U,BCDUPS
HLLM U,LDBBCD(U)
POPJ P,
;HERE WHEN RECEIVE EOT FROM BCD TERMINAL
BCDREO: TLNN U,BCDRCR ;IS THIS THE EOT AFTER A CR?
TLNN U,BCDAPL ;NO SO IF APL MODE ^C
JRST BCDRE2
MOVEI T3,3 ;CONTROL C
PUSHJ P,BCDRC9 ;PUT IN BUFFER
HLL U,LDBBCD(U) ;RESTORE STATUS BITS
BCDRE2: TLON U,BCDMSK ;MARK WE HAVE A REQUEST IN QUEUE
TLNE U,BCDXRB ;WERE WE SENDING A DBREAK
POPJ P, ;YES SO IGNORE THIS
TLO U,BCDKBL!BCDPRL ;MARK ALL LOCKED
TLZ U,BCDUPS!BCDRCR ;BACK TO LOWERCASE
HLLM U,LDBBCD(U)
MOVE T3,[BCDWEO,,^D10] ;TIME TO TURN AROUND
PJRST BCDCLK
BCDWEO: MOVE U,LINTAB(T1)
MOVSI T1,BCDMSK!BCDPRL
ANDCAM T1,LDBBCD(U) ;CLEAR MASK
MOVSI T1,LDLOIP## ;FLAG OUTPUT IN PROGRESS
IORM T1,LDBDCH(U)
MOVEI T1,LDRSHC## ;RENABLE IRMA CATCHER
ANDCAM T1,LDBDCH(U)
MOVE T1,[POINT 9,BCDEAS]
MOVEM T1,LDBXNP##(U)
;FAKE AN XMT INTERRUPT
XMTFAK: LDB U,LDPLNO## ;GET LINE NUMBER
PJRST XMTINT
;HERE TO GIVE UP LINE CONTROL BECAUSE WE NEED INPUT
BCDGIV: HLL T1,LDBBCD(U) ;GET BCD STATUS BITS
SKIPL LDBDCH(U) ;DON'T IF ACTIVELY OUTPUTING
TLNE T1,BCDMSK!BCDPRL ;DON'T INTERRUPT IMPORTANT STUFF
POPJ P,
MOVSI T1,LDLOIP## ;FLAG OUTPUT IN PROGRESS
IORM T1,LDBDCH(U)
HRRZI T1,LDRSHC ;DISABLE IRMA CATCHER
IORM T1,LDBDCH(U)
MOVSI T1,BCDCDB ;MARK THAT WE GAVE IT UP
IORM T1,LDBBCD(U) ; VOLUNTARILY
MOVE T1,[POINT 9,BCDETS]
MOVEM T1,LDBXNP(U)
PJRST XMTFAK
;HERE WHEN RECEIVE A BREAK FROM BCD TERMINAL
BCDRBK: TLNE U,BCDAPL ;IS THIS REALLY A CONTROL C?
JRST [MOVEI T3,3 ;YES
JRST BCDRC7]
TLOE U,BCDMSK ;ALREADY SEEN IT?
POPJ P,
MOVSI T1,LDLOIP## ;MARK OUTPUT IN PROGRESS
HRRI T1,LDRSHC ;DISABLE IRMA CATCHER
IORM T1,LDBDCH(U) ;SO SOMEONE DOESN'T SNEAK IN
TLO U,BCDPRL ;CONSIDER PRINTER LOCKED
TLZ U,BCDUPS!BCDCDB ;BACK TO LOWER SHIFT
HLLM U,LDBBCD(U)
MOVE T3,[BCDWBK,,^D16] ;WAIT BEFORE SENDING EOT
PJRST BCDCLK
BCDWBK: MOVE U,LINTAB(T1)
MOVSI T1,BCDMSK ;NO LONGER HAVE REQUEST IN QUEUE
ANDCAM T1,LDBBCD(U)
MOVE T1,[POINT 9,BCDETS] ;GIVE LINE TO TERMINAL
MOVEM T1,LDBXNP(U)
PJRST XMTFAK
;HERE IF INPUT MIGHT BE AN EOA
BCDREA: TLOE U,BCDPRL ;PRINTER MUST ALREADY BE LOCKED
CAIE T3,BCDEOA&077 ;IS IT?
POPJ P, ;NO SO IGNORE IT
TLZ U,BCDKBL!BCDUPS ;MARK KEYBOARD ACTIVE
HLLM U,LDBBCD(U) ;MARK NOW UNLOCKED
POPJ P,
;HERE TO SEND A REVERSE BREAK TO A 2741 TO GET LINE CONTROL BACK.
; CALLED AT UUO LEVEL
; CALL WITH LDBBCD IN T1
BCDDBK: DPB T3,BCDPCH ;SAVE CHARACTER TO TYPE LATER
MOVE T3,BCDPC1 ;GET POINTER TO CHARACTER
MOVEM T3,LDBFLP##(U) ;SO WE TYPE IT LATER
TLNE T1,BCDCDB ;IF USER TOOK IT DON'T TAKE IT BACK
TLNE T1,BCDXRB ; & BE SURE WE HAVEN'T ALREADY DONE THIS
JRST BCDKDB
TLNN T1,BCDMSK!BCDRCR ;BE SURE NOT ALREADY DOING SOMETHING
; AND WE HAVE HARDWARE FEATURE
TLNN T1,BCDPRL ;IS PRINTER LOCKED?
JRST BCDKDB ;NOPE
MOVSI T1,LILDBK## ;BIT FOR HAS REVERSE BREAK FEATURE
TDNN T1,LDBISR##(U) ;DO WE HAVE IT
JRST BCDKDB
MOVSI T1,BCDXRB ;SET TRYING TO DEBREAK BIT IN
IORM T1,LDBBCD(U) ; STATUS WORD
MOVE T3,[BCDWDB,,^D13] ;200-240MS OF SPACE
PUSHJ P,BCDCLK
MOVEI T3,200
PJRST BCDTY9
BCDWDB: MOVE U,LINTAB(T1)
MOVSI T1,BCDXRB ;MARK NO REQUEST IN QUEUE
ANDCAM T1,LDBBCD(U) ; LOWER SHIFT PRINTER UNLOCKED
MOVEI T3,177 ;SEND BITS TO FINISH BREAK
PUSHJ P,BCDTY9
HLL U,LDBBCD(U) ;GET STATUS BITS
PJRST BCDRE2 ;NOW PRETEND WE RECEIVED AN EOT
BCDKDB: MOVEI T1,LDRSHC ;DISABLE IRMA
IORM T1,LDBDCH(U)
POPJ P,
BCDCLK: LDB T1,LDPLNO ;GET LINE #
CONO PI,PIOFF##
IDPB T3,CLOCK##
IDPB T1,CLOCK## ;REMEMBER LINE #
CONO PI,PION##
POPJ P,
>;END OF IFN FTD10H
IFN FTMODM,<
;HERE TO EXERCISE CONTROL OVER A DATASET. TRANSACTION CODE IN T3,
; DSCTAB INDEX IN LINE. ENTERED FROM SCNSER ONLY.
DSCTYP: CAIN T3,DSTON## ;IS CODE FOR ON?
JRST DSDON ;YES. DRIVEN ON FLAG
CAIN T3,DSTOFF## ;NO. FOR OFF?
JRST DSDOFF ;YES. DISPATCH.
IFN FTDIAL,<
CAIN T3,DSTCRQ## ;PLACE OUTGOING CALL REQUEST?
JRST DSDCRQ ;YES
CAIG T3,DSTPND##+17 ;DIGIT TO DIAL?
CAIGE T3,DSTPND## ; ..
SKIPA ; NO.
JRST DSDPND ;YES.
>
CAIE T3,DSTREQ## ;REQUEST SATATUS?
POPJ P,0 ;NO. ERRONEOUS CODE. DISMISS.
DSDREQ: ;HERE TO REQUEST STATUS OF A LINE, ONLY DURING TTYINI. THUS
; IT IS OK TO GO INTO A WAIT-LOOP TO ACCOMPLISH THIS, AND TO IGNORE
; ANY OTHER ACTIVITY.
MOVSI T3,USDRLN+DSCOFS(U) ;PUT DIRECTED LINE NUMBER IN LH
HRRI T3,DLSOHE+DLSART ;REQUEST ARTIFICIAL INT, KEEP OFFHOOK ENABLE
DATAO DLS,T3 ;SEND TO DC10
MOVEI T1,1000 ;TIMEOUT, IN CASE DC10E DEAD
DSCIL2: CONSZ DLS,30 ;WAIT FOR INTERRUPT
JRST DSDRQ1 ;GOT A FLAG. SEE WHAT IT IS
SOJG T1,DSCIL2 ;WAIT FOR FLAG
DSRQOF: MOVEI T3,DSTOFF ;TELL SCNSER IT'S OFF.
POPJ P,0 ;RETURN TO SCNSER
DSDRQ1: DATAI DLS,T3 ;SEE WHAT THE DC10 SAYS
TRNE T3,RCVBIT ;IS IT A RECEIVE FLAG?
JRST DSDRQ2 ;YES. GOOD.
DATAO DLS,[EXP TDSABL] ;NO. RANDOM XMT FLAG. JUNK IT.
JRST DSCIL2 ;AND KEEP WAITING
DSDRQ2: HLRZ T2,T3 ;GET LINE NUMBER FROM DC10 INT.
CAIE T2,DSCOFS(U) ;CORRECT FOR THIS REQUEST?
JRST DSCIL2 ;NO. IGNORE IT.
TRNN T3,DLSCAR ;YES. IS CARRIER ON?
JRST DSRQOF ;NO. TELL SCNSER ITS OFF
DSRQON: MOVEI T3,DSTON ;YES. TELL SCNSER.
POPJ P,0 ;RETURN FROM DSCTYP
;STILL IN FTMODM
;HERE TO DRIVE A DATASET ON.
DSDON: MOVEI T2,DLSOHE ;BIT FOR DC10E
JRST DSDOF1 ;SEE WHICH TO USE
;HERE TO DRIVE A DATASET OFF.
DSDOFF: MOVEI T2,0 ;BIT FOR DC10E OFF
DSDOF1: MOVEI T1,0(U) ;GET COPY OF LINE NUMBER
ADDI T1,DSCOFS ;CORRECT TO DC10E NUMBER
MOVE T3,T2 ;GET BIT (OR NOT) FOR DC10E
JRST SCNTY1 ;SEND TO DC10
IFN FTDIAL,<
DSDCRQ: MOVEI T1,0(U) ;COPY DSCTAB INDEX
ADDI T1,DSCOFS ;CONVERT TO DC10E PHYSICAL LINE NUMBER
MOVEI T3,DLSOHE!DLSCRQ ;REQUEST LINE
JRST SCNTY1 ;SEND TO HARDWARE
DSDPND: MOVEI T1,0(U) ;COPY DSCTAB INDEX
ADDI T1,DSCOFS ;CONVERT TO PHYSICAL LINE IN DC10E
ANDI T3,17 ;JUST THE DESIRED DIGIT
CAIN T3,16 ;FLAG FOR SECOND DIAL TONE DELAY?
JRST DSDSDT ;YES. GO WAIT FOR SECOND DIAL TONE
TRO T3,DLSOHE!DLSDPR!DLSCRQ
JRST SCNTY1 ;SEND THE DIGIT TO DC10E
DSDSDT: MOVE T1,TICSEC## ;ONE SECOND
IMULI T1,5 ;FIVE SECONDS
HRLI T1,DLSCLK ;WHERE TO COME ON CLK LEVEL
CONO PI,PI.OFF ;FOR CLOCK REQUEST
IDPB T1,CLOCK## ;PUT IN QUEUE
IBP CLOCK## ;TWO WORDS/ENTRY
CONO PI,PI.ON ;OK FOR INT'S NOW
POPJ P,0 ;DISMISS, WAIT FOR CLOCK.
;HERE ON CLOCK LEVEL AFTER WAITING FOR SECOND DIAL TONE
DLSCLK: MOVE T3,DSDUNI## ;GET TTY NUMBER FOR DIALLER
MOVE U,LINTAB##(T3) ;LINE TABLE ENTRY IS LDB ADDRESS
LDB T3,LDPDSC## ;GET THE DATASET CONTROLLER INDEX
MOVSI T3,DSCOFS(T3) ;DC10E LINE NUMBER TO LEFT HALF
HRRI T3,RCVBIT!DLSPND ;PRETEND IT WAS RECEIPT OF NEXT DIGIT
JRST SCNNT1 ;AND JUMP INTO RECEIVE INTERRUPT CODE
> ;END OF FTDIAL
> ;END OF FTMODM
;ROUTINE TO OUTPUT A CHARACTER TO A LINE
;CALLED FROM TYPE IN SCNSER
;WITH 8-BITS OF CHARACTER IN T3
SCNTYP: IFN FTD10H <
MOVEI T1,LDR274 ;BIT FOR 2741 LINES
TDNN T1,LDBDCH(U) ;IS LINE A 2741 ?
JRST BCDTY9 ;NO
MOVE T1,LDBBCD(U) ;GET 2741 STATUS BITS
TLNE T1,BCDPRL ;CHECK FOR PRINTER LOCKED
TLNE T1,BCDKBL ;CHECK FOR KEYBOARD LOCKED
JRST BCDTY0
JRST BCDDBK ;SEND DEBREAK TO UNLOCK PRINTER
BCDTY0: ANDI T3,577 ;LEAVE ONLY 7BIT ASCII
TRZN T3,400 ;IMAGE MODE?
JRST BCDTY1 ;NO
ANDI T3,77
CAIN T3,BCDUCS&77 ;UPSHIFT?
TLO T1,BCDUPS
CAIN T3,BCDLCS&77 ;DOWNSHIFT?
TLZ T1,BCDUPS
CAIN T3,BCDEOT&77
TLO T1,BCDPRL ;YES MARK PRINTER LOCKED
HLLM T1,LDBBCD(U) ;SAVE NEW STATUS
JRST BCDTY8 ;YES - SO DON'T TRANSLATE
BCDTY1: CAIL T3,"A"+40 ;IS IT LOWER CASE?
CAILE T3,"Z"+40
JRST BCDTY2
TLNE U,LDLLCT## ;IS TTY LC SET?
ANDI T3,137 ;CONVERT TO UPPER CASE
BCDTY2: MOVE T1,BCDOUT(T3) ;TRANSLATE
PUSH P,T3
LDB T3,BCDPCD ;GET CODE NUMBER
SOJL T3,.+3
LSH T1,-7
JRST .-2
ANDI T1,177
POP P,T3
HRL T3,T1
TRNE T1,04 ;DOES THIS CHARACTER
TRNN T1,10 ;NEED SHIFT CHECKED?
JRST .+3 ;YES
TRNE T1,60 ;MAYBE
JRST BCDTY6 ;NO
HLLZ T1,LDBBCD(U) ;GET BCD STATUS BITS
TLZE T3,100 ;DO WE NEED AN UPSHIFT?
JRST BCDTUP ;YES
TLZN T1,BCDUPS ;NO - DO WE ALREADY HAVE ONE?
JRST BCDTY6 ;NO
PUSH P,[BCDLCS,,0]
JRST BCDTY5
BCDTUP: TLOE T1,BCDUPS ;DO WE ALREADY HAVE UC?
JRST BCDTY6 ;YES
PUSH P,[BCDUCS,,0]
BCDTY5: HLLM T1,LDBBCD(U)
DPB T3,BCDPCH
MOVE T3,BCDPC1
MOVEM T3,LDBFLP##(U) ;SO WE SEND CHAR LATER
POP P,T3
BCDTY6: HLRZS T3 ;RESTORE CHR TO TYPE
MOVSI T1,BCDOCR
CAIE T3,055 ;CR?
JRST BCDTY7
IORM T1,LDBBCD(U) ;SO WE FLUSH NEXT LF
PUSH P,T3 ;SAVE T3
MOVE T3,[POINT 9,BCDF13] ;POINT TO 13 FILLERS (377)
MOVEM T3,LDBFLP(U) ;PUT POINTER IN LDB
POP P,T3 ;RESTORE T3
JRST BCDTY8
BCDTY7: CAIN T3,075 ;SENDING IDLE?
JRST BCDTY8
CAIN T3,056 ;LF?
TDNN T1,LDBBCD(U)
CAIA
MOVEI T3,075 ;SEND AN IDLE INSTEAD
CAIG T3,057 ;LOOK FOR A TAB (057) OR
CAIGE T3,056 ; A LINE FEED (056)
JRST .+5 ;NO, ITS SOMETHING ELSE.
PUSH P,T3 ;SAVE T3
MOVE T3,[POINT 9,BCDF01] ;POINT TO 1 FILLER (377)
MOVEM T3,LDBFLP(U) ;PUT POINTER TO FILLER IN LDB
POP P,T3 ;RESTORE T3
ANDCAM T1,LDBBCD(U)
BCDTY8: PUSHJ P,PEVEN8## ;GET PARITY FOR CHARACTER
TRZN T3,200 ;WAS PARITY ALREADY ODD?
TRC T3,100 ;NO
BCDTY9:
>;END OF IFN FTD10H
ANDI T3,377 ;MAKE SURE NO JUNK
IFN FTHDPX!FTTRACK,<
DPB T3,LDPECK## ;SAVE FOR ECHO CHECK
>
LDB T1,LDPLNO## ;PICK UP LINE NUMBER
SUBI T1,DLSOFS ;CONVERT LINE #
SCNTY1: HRL T3,T1 ;SET UP LINE NUMBER IN T3 LH
TLO T3,USDRLN ;AND DIRECT TO THAT LINE
DATAO DLS,T3 ;OUT TO SCANNER
POPJ P,0 ;AND RETURN
SCNCHK: CONSZ DLS,7 ;ANY PI CHAN ON DC10?
POPJ P,0 ;YES. OK
CONO DLS,SCNCHN ;NO. RE ASSIGN IT
AOS DLSERR ;AND COUNT OCCURRENCE OF ERROR
POPJ P,0 ;RETURN TO CLOCK
$LOW
DLSERR: 0 ;COUNT OF LOST PI CHANNEL ERRORS
$LIT
DLSEND: END