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PDP-10 Archives
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decuslib10-01
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43,50205/algol3.met
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00100 .SUBSYNTAX EXPRESSIONS
00200
00300 .INTERNAL BOOLEX,INTEXPR,REFEXPR,STREXPR,BUILTIN
00400 .EXTERNAL ARRAYEND,ARRAYSS,SETARRAY,AC,ARGNUM,ARGCT
00500 .EXTERNAL STRSSEND,STRSTORE,SUBSTR,STRTMP,ARGGET,REFTMP
00600 .EXTERNAL BLTININT,BLTINSTR,BLTINBOOL,DEFINE,BASE,REFSTORE
00700
00800 REFEXPR: .PEEK("NULL" .NOT(-.ID)) "NULL" .OUT("MOVEI"-"%TB,0")/
00900 .PEEK(.ID .LOOK (.CHECK 4 SET/.CHECK 5 SET))
01000 (.CHECK 5 SET .OUT("PUSHJ"-"%P,$"B#"."S#)/
01100 .CHECK 6 SET %1 "(" REFEXPR ")" ^1 .LOOK .OUT("MOVE"-"%TB,$"B#"."S#"(%TB)")/
01200 .CHECK 13 SET (.CHECK 10 SET #2"2" ARGGET /
01300 BASE .OUT("MOVE"-"%TB,$"B#"."S#^3*)) /
01400 .CHECK 11 SET SETARRAY "(" INTEXPR ")" #3"2" ARRAYSS ARRAYEND
01500 .OUT("MOVE"-"%TB,(%"[*:=AC]*")") [AC:=AC-1]/
01600 .CHECK 12 SET SETARRAY "(" INTEXPR "," #3"2" ARRAYSS INTEXPR ")"
01700 #3"5" ARRAYSS ARRAYEND .OUT("MOVE"-"%TB,(%"[*:=AC]*")") [AC:=AC-1]);
01800
01900
02000 INTEXPR: TERM *("+" TERM [AC:=AC-1] .OUT("ADD"-"%"[*:=AC]*",%"[*:=AC+1]*)/
02100 "-" TERM [AC:=AC-1] .OUT("SUB"-"%"[*:=AC]*",%"[*:=AC+1]*));
02200
02300 TERM: PRIME *("*" PRIME [AC:=AC-1] .OUT("IMUL"-"%"[*:=AC]*",%"[*:=AC+1]*)/
02400 "DIV" PRIME [AC:=AC-1] .OUT("IDIV"-"%"[*:=AC]*",%"[*:=AC+1]*)/
02500 "REM" PRIME [AC:=AC-1] .OUT("IDIV"-"%"[*:=AC]*",%"[*:=AC+1]*)
02600 .OUT("MOVE"-"%"[*:=AC]*",%"[*:=AC+1]*));
02700
02800 PRIME: "-" PRIME .OUT("MOVN"-"%"[*:=AC]*",%"*)/ "+" PRIME / "(" INTEXPR ")"/
02900 .PEEK("ABS" "(") INTEXPR ")" .OUT("MOVM"-"%"[*:=AC]*",%"*)/
03000 .NUMBER %1 [AC:=AC+1] .IF(AC.LE.7)
03100 .OUT("MOVE"-"%"[*:=AC]*",[DEC "^1*"]")/
03200 .PEEK(.ID .LOOK .CHECK 3 SET)
03300 (.CHECK 25 SET BLTININT/
03400 (.CHECK 21 SET .CHECK 26 SET BASE .OUT("MOVE"-"%"[*:=AC+1]*",$"B#"."S#^3*) /
03500 .CHECK 6 SET %1 "(" REFEXPR ")" ^1 .LOOK
03600 .OUT("MOVE"-[*:=AC+1]"%"*",$"B#"."S#"(%TB)") .OUT("SETZ"-"%TB,")/
03700 .CHECK 13 SET (.CHECK 10 SET
03800 (.IF(AC.GE.0) .OUT("MOVE"-"%"[*:=AC+1]*",%0")/.EMPTY)
03900 #2"2" ARGGET
04000 (.IF(AC.GE.0) .OUT("EXCH"-"%"[*:=AC+1]*",%0")/.EMPTY)/
04100 BASE .OUT("MOVE"-"%"[*:=AC+1]*",$"B#"."S#^3*) )/
04200 .CHECK 11 SET SETARRAY %3 "(" INTEXPR ")" #3"2" ARRAYSS ARRAYEND
04300 .OUT("MOVE"-"%"^3%3[*:=AC-*]*",(%"[*:=AC]*")") ^3[AC:=AC-1-*]/
04400 .CHECK 12 SET SETARRAY %3 "(" INTEXPR "," #3"2" ARRAYSS INTEXPR ")"
04500 #3"5" ARRAYSS ARRAYEND .OUT("MOVE"-"%"^3%3[*:=AC-*]*",(%"[*:=AC]*")")
04600 ^3[AC:=AC-1-*]) [AC:=AC+1] .IF(AC.LE.7));
04700
04800 STREXPR: STRPRIME *("CAT" STRSTORE STRPRIME STRSTORE .IF(AC.LE.3)
04900 ^1%3^1%1 .LOOKC .OUT("HLLZ"-"%"[*:=AC+2]*",$"B#"."S#"+1(%B)") ^3%3 .LOOKC
05000 .OUT("HLRZ"-"%"[*:=AC+4]*",%"[*:=AC+2]*) .OUT("MOVEI"-"%"[*:=AC+3]*",1")
05100 [*:=AC+2] .OUT("ADD"-"%"*",$"B#"."S#"+1(%B)") .OUT("ANDCMI"-"%"*",777777")
05200 [*:=AC+1] .OUT("MOVSI"-"%"*",(POINT 7,0)") .OUT("ASTRG"-"%"*) ^1 .LOOKC
05300 .OUT("SUBST"-"%"[*:=AC+3]*",%"[*:=AC+1]*) [*:=AC+3]
05400 .OUT("SMOVE"-"%"*",$"B#"."S#"(%B)") .OUT("HLLZS"-"%"*",$"B#"."S#"+1(%B)")
05500 .OUT("HLRZ"-"%"*",%"*) .OUT("ADDI"-"%"*",1") ^3 .LOOKC
05600 .OUT("HLRZ"-"%"[*:=AC+4]*",$"B#"."S#"+1(%B)")
05700 .OUT("SUBST"-"%"[*:=AC+3]*",%"[*:=AC+1]*) .OUT("SMOVE"-"%"[*:=AC+3]*",$"B#"."S#"(%B)")
05800 .OUT("HLLZS"-"$"B#"."S#"+1(%B)") [STRTMP:=STRTMP-2] [AC:=AC+1]);
05900
06000 STRPRIME: .STRING [AC:=AC+1] %2 .IF(AC.LE.6)
06100 (.IF(*L.GT.2) .OUT("MOVE"-"%"[*:=AC]*",[POINT 7,[ASCII"^2%2*"]]") /
06200 .OUT("MOVSI"-"%"[*:=AC]*",(POINT 7,0)"))
06300 .OUT("MOVSI"-"%"[*:=AC+1]*",^D"^2*L"-2") /
06400 "#" -.NUMBER %1 [AC:=AC+1] .IF(AC.LE.6)
06500 .OUT("MOVE"-"%"[*:=AC]*",[POINT 1,"*1"]")
06600 .OUT("MOVSI"-"%"[*:=AC+1]*",^D"^1*L)
06700 .OUT("JRST"-*2) .LABEL *1 .OUT("BITS"-*) .LABEL *2 /
06800 .PEEK(.ID .LOOK .CHECK 1 SET) (.CHECK 25 SET BLTINSTR /
06900 .CHECK 6 SET %1 "(" REFEXPR ")"
07000 ("(" REFSTORE INTEXPR "," INTEXPR ")" ^1 .LOOKC [REFTMP:=REFTMP-1]
07100 [AC:=AC-1] .OUT("MOVE"-"%,$"B#"."S#"(%B)")
07200 .OUT("SETZM"-"$"B#"."S#"(%B)") ^1 .LOOK
07300 .OUT("SUBST"-"%"[*:=AC]*",$"B#"."S#"(%)") /
07400 ^1 .LOOK [AC:=AC+1] .IF(AC.LE.6)
07500 .OUT("MOVE2"-"%"[*:=AC]*",$"B#"."S#"(%TB)")
07600 .OUT("SETZ"-"%TB,") )/
07700 .CHECK 13 SET ("(" %1 INTEXPR "," INTEXPR ")" [AC:=AC-1] ^1 .LOOK
07800 (.CHECK 10 SET (.IF(AC.GE.2) .OUT("EXCH"-"%"[*:=AC]*",%0")
07900 .OUT("EXCH"-"%"[*:=AC+1]*",%1") / .EMPTY) #2"1" ARGGET
08000 (.IF(AC.GE.2) .OUT("EXCH"-"%"[*:=AC]*",%0")
08100 .OUT("EXCH"-"%"[*:=AC+1]*",%1") / .EMPTY) /
08200 BASE .OUT("SUBST"-"%"[*:=AC]*",$"B#"."S#^3*)) /
08300 [AC:=AC+1] .IF(AC.LE.6)
08400 (.CHECK 10 SET (.IF(AC.GE.2) .OUT("MOVE2"-"%"[*:=AC]*",%0")
08500 /.EMPTY) #2"2" ARGGET (.IF(AC.GE.2)
08600 .OUT("EXCH"-"%"[*:=AC]*",%0")
08700 .OUT("EXCH"-"%"[*:=AC+1]*",%1") / .EMPTY) /
08800 BASE .OUT("MOVE2"-"%"[*:=AC]*",$"B#"."S#^3*) ) )/
08900 (.CHECK 11 SET %1 [AC:=AC+1] .IF(AC.LE.6) .OUT("SETZ"-"%"[*:=AC]*",")
09000 "(" INTEXPR ")" #3"2" ARRAYSS /
09100 .CHECK 12 SET %1 [AC:=AC+1] .IF(AC.LE.6) .OUT("SETZ"-"%"[*:=AC]*",")
09200 "(" INTEXPR "," #3"2" ARRAYSS INTEXPR #3"5" ARRAYSS ")")
09300 ("(" [AC:=AC+1] INTEXPR "," INTEXPR ")" [AC:=AC-3] STRSSEND
09400 .OUT("SUBST"-"%"[*:=AC+2]*",%"[*:=AC]*)
09500 .OUT("MOVE2"-"%"*",%"[*:=AC+2]*) / STRSSEND) );
09600
09700 BOOLEX: BOOLTM *("OR" BOOLTM [AC:=AC-1]
09800 .OUT("OR"-"%"[*:=AC]*",%"[*:=AC+1]*));
09900
10000 BOOLTM: BOOLPR *("AND" BOOLPR [AC:=AC-1]
10100 .OUT("AND"-"%"[*:=AC]*",%"[*:=AC+1]*));
10200
10300 BOOLPR: .PEEK("NOT" .NOT(-.ID)) "NOT" BOOLPR .OUT("SETCMM"-"%"[*:=AC]*)/
10400 .PEEK(.ID .LOOK .CHECK 35 SET) .CHECK 25 SET BLTINBOOL /
10500 INTEXPR ("EQL" INTEXPR [AC:=AC-1]
10600 .OUT("CAME"-"%"[*:=AC]*",%"[*:=AC+1]*)/
10700 "NEQ" INTEXPR [AC:=AC-1] .OUT("CAMN"-"%"[*:=AC]*",%"[*:=AC+1]*)/
10800 "LSS" INTEXPR [AC:=AC-1] .OUT("CAML"-"%"[*:=AC]*",%"[*:=AC+1]*)/
10900 "LEQ" INTEXPR [AC:=AC-1] .OUT("CAMLE"-"%"[*:=AC]*",%"[*:=AC+1]*)/
11000 "GTR" INTEXPR [AC:=AC-1] .OUT("CAMG"-"%"[*:=AC]*",%"[*:=AC+1]*)/
11100 "GEQ" INTEXPR [AC:=AC-1] .OUT("CAMGE"-"%"[*:=AC]*",%"[*:=AC+1]*))
11200 .OUT("TLZA"-"%"[*:=AC]*",777777") .OUT("TLO"-"%"*",777777")/
11300 REFEXPR ("IS" .ID .LOOK .CHECK 5 SET [AC:=AC+1] .IF(AC.LE.7)
11400 .OUT("IS"-"%TB,$"B#"$"S#) .OUT("TLZA"-"%"[*:=AC]*",777777")
11500 .OUT("TLO"-"%"*",777777") .OUT("SETZ"-"%TB,")/
11600 "EQL" REFSTORE REFEXPR ^1 .LOOKC [AC:=AC+1] .IF(AC.LE.7) [REFTMP:=REFTMP-1]
11700 .OUT("CAME"-"%TB,$"B#"."S#"(%B)") .OUT("TLZA"-"%"[*:=AC]*",777777")
11800 .OUT("TLO"-"%"*",777777") .OUT("SETZB"-"%TB,$"B#"."S#"(%B)")/
11900 "NEQ" REFSTORE REFEXPR ^1 .LOOKC [AC:=AC+1] .IF(AC.LE.7) [REFTMP:=REFTMP-1]
12000 .OUT("CAMN"-"%TB,$"B#"."S#"(%B)") .OUT("TLZA"-"%"[*:=AC]*",777777")
12100 .OUT("TLO"-"%"*",777777") .OUT("SETZB"-"%TB,$"B#"."S#"(%B)"))/
12200 .PEEK((.ID .LOOK .CHECK 1 SET/.STRING) .NOT(.IF(1.EQ.2)))
12300 [*:=AC] %2 [AC:=(AC+2)/2*2-1] STREXPR STRSTORE
12400 ("EQL" STREXPR ^1 .LOOKC .OUT("CSTER"-"%"[*:=AC]*",$"B#"."S#"(%B)")/
12500 "NEQ" STREXPR ^1 .LOOKC .OUT("CSTNR"-"%"[*:=AC]*",$"B#"."S#"(%B)")/
12600 "LSS" STREXPR ^1 .LOOKC .OUT("CSTLR"-"%"[*:=AC]*",$"B#"."S#"(%B)")/
12700 "LEQ" STREXPR ^1 .LOOKC .OUT("CSTLER"-"%"[*:=AC]*",$"B#"."S#"(%B)")/
12800 "GTR" STREXPR ^1 .LOOKC .OUT("CSTGR"-"%"[*:=AC]*",$"B#"."S#"(%B)")/
12900 "GEQ" STREXPR ^1 .LOOKC .OUT("CSTGER"-"%"[*:=AC]*",$"B#"."S#"(%B)"))
13000 ^2 [AC:=*+1] .OUT("TLZA"-"%"[*:=AC]*",777777") .OUT("TLO"-"%"*",777777")
13100 .OUT("HLLZS"-"$"B#"."S#"+1(%B)") [STRTMP:=STRTMP-1];
13200
13300 SETIN: ^1 .ENTERC .SET 25;
13400
13500 BUILTIN: DEFINE #1"%RUN" ^1 .ENTERC
13600 #1"ENTRY" SETIN .SET 35 .SET 26
13700 #1"ENDFILE" SETIN .SET 35 .SET 27
13800 #1"OPEN" SETIN .SET 35 .SET 28
13900 #1"ERROR" SETIN .SET 9 .SET 26
14000 #1"OUTSTRING" SETIN .SET 9 .SET 27
14100 #1"OUTBITS" SETIN .SET 9 .SET 27
14200 #1"OPENIN" SETIN .SET 9 .SET 28
14300 #1"OPENOUT" SETIN .SET 9 .SET 29
14400 #1"CLOSE" SETIN .SET 9 .SET 30
14500 #1"SETBREAK" SETIN .SET 9 .SET 31
14600 #1"OUTLINE" SETIN .SET 9 .SET 32
14700 #1"SLEEP" SETIN .SET 9 .SET 33
14800 #1"RUN" SETIN .SET 9 .SET 34
14900 #1"LINENO" SETIN .SET 3 .SET 26
15000 #1"LENGTH" SETIN .SET 3 .SET 27
15100 #1"STRINT" SETIN .SET 3 .SET 28
15200 #1"STATUS" SETIN .SET 3 .SET 29
15300 #1"BITINT" SETIN .SET 3 .SET 30
15400 #1"DATE" SETIN .SET 3 .SET 31
15500 #1"MSTIME" SETIN .SET 3 .SET 32
15600 #1"RUNTIME" SETIN .SET 3 .SET 33
15700 #1"JOBNO" SETIN .SET 3 .SET 34
15800 #1"PROJPROG" SETIN .SET 3
15900 #1"BREAK" SETIN .SET 1 .SET 2 .SET 26
16000 #1"BITSTR" SETIN .SET 1 .SET 2 .SET 27
16100 #1"STRBIT" SETIN .SET 1 .SET 2 .SET 24 .SET 28
16200 #1"INTBIT" SETIN .SET 1 .SET 2 .SET 24 .SET 29
16300 #1"INSTRING" SETIN .SET 1 .SET 2 .SET 30
16400 #1"INTSTR" SETIN .SET 1 .SET 2 .SET 31
16500 #1"INBITS" SETIN .SET 1 .SET 2 .SET 24 .SET 32
16600 #1"BLANKS" SETIN .SET 1 .SET 2 .SET 33
16700 #1"ZEROES" SETIN .SET 1 .SET 2 .SET 24 .SET 34
16800 #1"COPYSTRING" SETIN .SET 1 .SET 2
16900 #1"COPYBITS" SETIN .SET 1 .SET 2 .SET 24;
17000
17100 .END