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10,7/rms10/rmssrc/cpasym.mac
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UNIVER CPASYM -- Parameter File For CMDPAR
SUBTTL /PJT/MLB/DC/PJT 3-Oct-79
;
;
; COPYRIGHT (c) 1975,1976,1977,1978,1979
; DIGITAL EQUIPMENT CORPORATION
;
; 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 WHICH IS NOT SUPPLIED BY
; DIGITAL.
SALL ;SUPRESS MACRO EXPANSIONS
DEFINE TOPS10 <IFN TOP$10,> ;SETUP CONDITIONAL MACROS
DEFINE TOPS20 <IFN TOP$20,>
TOPS10 <
IF1,<PRINTX Building a CPASYM-10 library>
SEARCH UUOSYM> ;SEARCH PROPER
TOPS20 <
IF1,<PRINTX Building a CPASYM-20 library>
SEARCH MONSYM> ;UNIVERSAL FOR SYSTEM SYMBOLS
DEFINE VRSN.(PFX),<BYTE (3)PFX'WHO (9)PFX'VER (6)PFX'MIN (18)PFX'EDT>
SUBTTL Table of contents
SUBTTL Accumulator Definitions
;THE FOLLOWING ACCUMULATOR DEFINITIONS ARE STANDARD THROUGHOUT THE
; SUB-SYSTEMS GROUP AND MAY NOT BE CHANGED. THE ACCUMULATORS DEFINED ARE:
TF==0 ;TRUE/FALSE REGISTER, NEVER REFERENCED DIRECTLY
; USED BY $RETx AND JUMPT,JUMPF, SKIPT,SKIPF
.SAC==0 ;SCRATCH AC USED BY SOME NONE SKIPPABLE MACROS
S1==1 ;S1 & S2 ARE ARGUMENTS TO ROUTINES
S2==2 ;AND ARE OTHERWISE SCRATCH
T1==3 ;T1 - T4 ARE TEMPORARY REGS
T2==4
T3==5
T4==6
P1==7 ;P1 - P4 ARE PRESERVED REGS
P2==10
P3==11
P4==12
.A13==13 ;.A13 THRU .A16 NOT USED BY LIBRARY
.A14==14
.A15==15
.A16==16
.FP==16 ;FRAME POINTER USED BY TRVAR AND ASUBR
;MAY NOT BE CHANGED WITHIN THE SCOPE OF
;A ROUTINE USING TRVAR OR ASUBR
;HOWEVER -- IT IS PRESERVED OUTSIDE THE
;SCOPE OF THESE ROUTINES
P==17 ;PUSHDOWN POINTER
;THERE ARE CO-ROUTINES DEFINED IN CPACOM TO SAVE AND AUTOMATICALLY
; RESTORE THE "T" AND "P" THAT ARE INVOKED BY THE SAVE MACRO
; CALLED AS FOLLOWS:
; $SAVE <P1,P2,P3,P4> ;TO SAVE P1-P4
; $SAVE <T1,T2,T3,T4> ;TO SAVE T1-T4
; $SAVE <P1> ;TO SAVE P1
; $SAVE <P1,P2,P3> ;TO SAVE P1-P3
; $SAVE <T1,T2> ;TO SAVE T1-T2
; $SAVE <TF,S1> ;TO SAVE TF AND S1 FOR RETURN TO CALLER
; ;AC'S ARE AUTOMATICALLY RESTORED ON RETURN
;AC'S 13,14,15 & 16 ARE AVAILABLE TO THE COMPONENT AND MAY BE USED
; TO ANY END WITH THE NOTEABLE EXCEPTION:
; * * * * N O T E * * * *
; AC16 IS USED AS A FRAME POINTER FOR TRVAR AND ASUBR DYNAMIC
; VARIABLE ALLOCATION. IT MAY NOT BE REFERENCED WITHIN THE
; RANGE OF THE TRVAR OR ASUBR, HOWEVER IT IS PRESERVED ON RETURN
; TO THE CALLER.
;REFER TO CMDPAR.MEM FOR A FULL DESCRIPTION OF MACROS AND AC USAGE
SUBTTL JUMPx, SKIPx Instruction OPDEFS
;All subroutines which follow CMDPAR conventions return a "success/failure"
; value in the register TF. This is done by returning via one of
; the return instructions, $RETE, $RETT or $RETF (See next page).
;The value of TRUE or FALSE which a routine returns can be tested with one
;of the following instructions, which alter program flow according to
; the value currently in TF.
; Jump to location specified if TF contains TRUE
OPDEF JUMPT [JUMPN]
; Jump to location specified if TF contains FALSE
OPDEF JUMPF [JUMPE]
; Skip the next instruction if TF contains TRUE
OPDEF SKIPT [SKIPN]
; Skip the next instruction if TF contains FALSE
OPDEF SKIPF [SKIPE]
; PJRST instruction OPDEF
OPDEF PJRST [JRST]
SUBTTL ND, XP, EXT, and GLOB Macros
;Macro to Define a Symbol if not already defined
; ND SYMBOL,VALUE
DEFINE ND(SYM,VAL),<IF2,<IFDEF SYM,<SYM==SYM>> IFNDEF SYM,<SYM==VAL>>
;Macro to Define a Symbol and force it INTERN
; XP SYMBOL,VAL,PRINT
; Where PRINT is any Non-blank to allow printing from DDT
DEFINE XP(SYM,VAL,PRINT),<IFB <PRINT>,<SYM==:VAL> IFNB <PRINT>,<SYM=:VAL>>
;Macro to EXTERN a Symbol if not defined in this routine
; EXT SYMBOL
DEFINE EXT(SYMBOL),<IRP SYMBOL,<
IF2,<IFNDEF SYMBOL,<EXTERN SYMBOL>>>>
;Macro to EXTERN or INTERN a Symbol
; GLOB SYMBOL
DEFINE GLOB(SYMBOL),<IRP SYMBOL,<
IF2,<IFDEF SYMBOL,<.IFN SYMBOL,EXTERN,<INTERN SYMBOL>>
IFNDEF SYMBOL,<EXTERN SYMBOL>
SUPPRES SYMBOL>>>
SUBTTL CONT. LSTOF. LSTON. VRSN. Macro Definitions
;Macro to force page overflow with appropriate comments
DEFINE CONT.(NAME)<LALL
PAGE; (NAME Continued on next page)
SALL; (NAME Continued from previous page)>
;Macros to turn on and off listings with nesting and level control
; LSTOF. ;TURNS OFF LISTINGS ONLY
; LSTOF. XCREF ;TURNS OFF LISTINGS AND CREF
; LSTON. ;RESTORES LISTINGS AND CREF AT TOP LEVEL
;IF LSTIN. IS DEFINED AS .MINFI THEN ALL LISTINGS ARE ON
DEFINE LSTOF.(FOO),<
IFNDEF LSTIN.,LSTIN.==0 ;;INITIALIZE LEVEL COUNTER
IFE LSTIN.,<
IFIDN <XCREF><FOO>,<.XCREF> ;;CONDITIONALLY SUPPRESS CREF
XLIST> ;;TURN OFF LISTINGS
LSTIN.==LSTIN.+1> ;;BUMP LIST LEVEL
DEFINE LSTON.,<
IFG LSTIN.,LSTIN.==LSTIN.-1 ;;DECR LIST LEVEL
IFLE LSTIN.,<.CREF ;;RESUME CREFS
LIST>> ;;RESUME LISTS
;Macro to Generate Standard Version Word
;Assumes PFXWHO, PFXVER, PFXMIN, PFXEDT are defined.
; VRSN. (PFX)
DEFINE VRSN.(PFX),<BYTE (3)PFX'WHO (9)PFX'VER (6)PFX'MIN (18)PFX'EDT>
SUBTTL PROLOG - Uniform assembly set up
;The PROLOG macro is used to uniformly search all the right UNV files
; and setup the listing format and STOP CODE controls.
; The call is : PROLOG(xxxxxx)
; where the 'xxxxxx' represents the module name.
%%.MOD==SIXBIT/NONAME/ ;DEFAULT MODULE NAME BEFORE
; PROGRAM DOES PROLOG
DEFINE PROLOG(MODULE)<
SALL
LSTOF. XCREF
TOPS20 <SEARCH MONSYM> ;;LOAD O.S. SYMBOLS
TOPS10 <SEARCH UUOSYM> ;; FOR PROPER OPERATING SYSTEM
;;FOR NON-LIBRARY COMPONENTS
DEFINE $DATA(NAM,SIZ<1>)<
NAM: BLOCK SIZ
>
DEFINE ..ASGN(A,ADDR) <GLOB(A)>
IFNB <MODULE>,<%%.MOD==SIXBIT/MODULE/> ;;MAKE NAME AVAILABLE
OPDEF $RETT [PJRST .RETT] ;;Pick up proper .RETT/.RETF
OPDEF $RETF [PJRST .RETF]
LSTON. ;;TURN LISTINGS BACK ON
> ;END OF PROLOG DEFINITION
U$PURE==400000
; $IMPURE - CONTINUE GENERATION OF IMPURE PSECT
;
DEFINE $IMPURE< ;;DO THIS WAY BECAUSE OF MACRO-53 RESTRICTIONS
P$IMPURE==1 ;;TELL $PURE
TWOSEG U$PURE ;;MAKE PLENTY OF ROOM
RELOC 0 ;;START THE IMPURE "SEGMENT"
>
; $PURE - CONTINUE GENERATION OF PURE PSECT
;
DEFINE $PURE< ;;DO THIS WAY FOR NOW
IFNDEF P$IMPUR,<TWOSEG U$PURE> ;;INDIC A PURE SEGMENT
RELOC U$PURE ;;AND START IT UP
>
SUBTTL SYSPRM - Set system dependent parameters
;THE SYSPRM MACRO IS USED TO DEFINE A SYMBOL WHOSE VALUE IS DIFFERENT
; DEPENDING ON THE OPERATING SYSTEM WHICH THE PROGRAM IS
; BEING ASSEMBLED FOR.
;
; THE CALL IS:
;
; SYSPRM 'SUBSYSTEM-NAME' , 'TOPS10 VALUE' , 'TOPS20 VALUE'
DEFINE SYSPRM(SYMBOL,UUOS,JSYS),<
IFNB <UUOS>,<TOPS10<SYMBOL==UUOS>>
IFNB <JSYS>,<TOPS20<SYMBOL==JSYS>>
> ;END DEFINE SYSPRM
SUBTTL PG2ADR,ADR2PG Macros
DEFINE PG2ADR(AC),<LSH AC,^D9>
DEFINE ADR2PG(AC),<LSH AC,-^D9>
SUBTTL Standard Constants
.INFIN==377777,,777777 ;PLUS INFINITY
.MINFI==1B0 ;MINUS INFINITY
LHMASK==777777B17 ;LEFT HALF
RHMASK==777777 ;RIGHT HALF
FWMASK==-1 ;FULL WORD
; BYTE POINTER PARTS
BP.POS==77B5 ;POSITION (BITS TO THE RIGHT)
BP.SIZ==77B11 ;SIZE OF BYTE
BP.ADR==Z -1 ;ADDRESS PORTION
; DEFINE UNIVERSAL TRUE AND FALSE CONSTANTS
FALSE==0
TRUE=-1
; MEMORY CONSTANTS
PAGSIZ==^D512 ;SIZE OF ONE PAGE
MEMSIZ==^D512 ;PAGES IN THE ADDRESS SPACE
; DEBUGGING CONSTANTS
SYSPRM DDTADR,.JBDDT,770000 ;LOCATION CONTAINING START OF DDT
SYSPRM DEBUGW,.JBOPS,135 ;SPECIAL "DEBUGGING" WORD
SUBTTL Control Character Symbols
.CHNUL==000 ;NULL
.CHCNA==001
.CHCNB==002
.CHCNC==003
.CHCND==004
.CHCNE==005
.CHCNF==006
.CHBEL==007 ;BELL
.CHBSP==010 ;BACKSPACE
.CHTAB==011 ;TAB
.CHLFD==012 ;LINE-FEED
.CHVTB==013 ;VERTICAL TAB
.CHFFD==014 ;FORM FEED
.CHCRT==015 ;CARRIAGE RETURN
.CHCNN==016
.CHCNO==017
.CHCNP==020
.CHCNQ==021
.CHCNR==022
.CHCNS==023
.CHCNT==024
.CHCNU==025
.CHCNV==026
.CHCNW==027
.CHCNX==030
.CHCNY==031
.CHCNZ==032
.CHESC==033 ;ESCAPE
.CHCBS==034 ;CONTROL BACK SLASH
.CHCRB==035 ;CONTROL RIGHT BRACKET
.CHCCF==036 ;CONTROL CIRCONFLEX
.CHCUN==037 ;CONTROL UNDERLINE
.CHALT==175 ;OLD ALTMODE
.CHAL2==176 ;ALTERNATE OLD ALTMODE
.CHDEL==177 ;DELETE
SUBTTL Field and Mask Macros
;STANDARD MACROS
;MACROS TO HANDLE FIELD MASKS
;COMPUTE LENGTH OF MASK, I.E. LENGTH OF LEFTMOST STRING OF ONES
;REMEMBER THAT ^L DOES 'JFFO', I.E. HAS VALUE OF FIRST ONE BIT IN WORD
;COMPUTE WIDTH OF MASK, I.E. LENGTH OF LEFTMOST STRING OF ONES
DEFINE WID(MASK)<<^L<-<<MASK>_<^L<MASK>>>-1>>>
;COMPUTE POSITION OF MASK, I.E. BIT POSITION OF RIGHTMOST ONE IN MASK
DEFINE POS(MASK)<<^L<<MASK>&<-<MASK>>>>>
;CONSTRUCT BYTE POINTER TO MASK
DEFINE POINTR(LOC,MASK)<<POINT WID(MASK),LOC,POS(MASK)>>
;PUT RIGHT-JUSTIFIED VALUE INTO FIELD SPECIFIED BY MASK
DEFINE FLD(VALUE,MASK),<<<<VALUE>B<POS(<MASK>)>>&<MASK>>>
;MAKE VALUE BE RIGHT JUSTIFIED IN WORD.
DEFINE .RTJST(VAL,MSK)<<VAL>B<^D70-POS(MSK)>>
;CONSTRUCT MASK FROM BIT AA TO BIT BB. I.E. MASKB 0,8 = 777B8
DEFINE MASKB (AA,BB)<1B<<AA>-1>-1B<BB>>
;MODULE - GIVES REMAINDER OF DEND DIVIDED BY DSOR
DEFINE MOD. (DEND,DSOR)<<DEND-<DEND/DSOR>*DSOR>>
;OLD STYLE MACTEN TYPE CALLS
;MACRO TO BUILD A MASK "WID" BITS WIDE, WITH ITS RIGHTMOST BIT
; IN THE BIT POSITION "POS".
DEFINE MASK.(WID,POS),<<<<1_<WID>>-1>B<POS>>>
;INVSL. POSITIONS VALUE IN MASK TO BE REPLACED BY FLD(VALUE,MASK)
DEFINE INSVL.(VALUE,MASK),<<<<VALUE>B<POS(<MASK>)>>&<MASK>>>
SUBTTL MOVX
;MOVX - LOAD AC WITH CONSTANT
DEFINE MOVX (AC,MSK)<
..MX1==MSK ;;EVAL EXPRESSION IF ANY
IFDEF .PSECT,<
.IFN ..MX1,ABSOLUTE,<
MOVE AC,[MSK]>
.IF ..MX1,ABSOLUTE,<
..MX2==0 ;;FLAG SAYS HAVEN'T DONE IT YET
IFE <..MX1>B53,<
..MX2==1
MOVEI AC,..MX1> ;;LH 0, DO AS RH
IFE ..MX2,< ;;IF HAVEN'T DONE IT YET,
IFE <..MX1>B17,<
..MX2==1
MOVSI AC,(..MX1)>> ;;RH 0, DO AS LH
IFE ..MX2,< ;;IF HAVEN'T DONE IT YET,
IFE <<..MX1>B53-^O777777>,<
..MX2==1
HRROI AC,<..MX1>>> ;;LH -1
IFE ..MX2,< ;;IF HAVEN'T DONE IT YET,
IFE <<..MX1>B17-^O777777B17>,<
..MX2==1
HRLOI AC,(..MX1-^O777777)>> ;;RH -1
IFE ..MX2,< ;;IF STILL HAVEN'T DONE IT,
MOVE AC,[..MX1]> ;;GIVE UP AND USE LITERAL
>>
IFNDEF .PSECT,<
..MX2==0 ;;FLAG SAYS HAVEN'T DONE IT YET
IFE <..MX1>B53,<
..MX2==1
MOVEI AC,..MX1> ;;LH 0, DO AS RH
IFE ..MX2,< ;;IF HAVEN'T DONE IT YET,
IFE <..MX1>B17,<
..MX2==1
MOVSI AC,(..MX1)>> ;;RH 0, DO AS LH
IFE ..MX2,< ;;IF HAVEN'T DONE IT YET,
IFE <<..MX1>B53-^O777777>,<
..MX2==1
HRROI AC,<..MX1>>> ;;LH -1
IFE ..MX2,< ;;IF HAVEN'T DONE IT YET,
IFE <<..MX1>B17-^O777777B17>,<
..MX2==1
HRLOI AC,(..MX1-^O777777)>> ;;RH -1
IFE ..MX2,< ;;IF STILL HAVEN'T DONE IT,
MOVE AC,[..MX1]> ;;GIVE UP AND USE LITERAL
>
PURGE ..MX1,..MX2>
SUBTTL CAX - COMPARE MACROS
;CREATE THE CAX MACRO DEFINITIONS
DEFINE ..DOCX (T)<
IRP T,<
DEFINE CAX'T (AC,MSK)<
..CX(T,AC,MSK)>>>
..DOCX (<,L,LE,E,G,GE,N,A>) ;DO 8 DEFINITIONS
PURGE ..DOCX
DEFINE ..CX(T,AC,MSK)<
..CX1==MSK
IFDEF .PSECT,<
.IFN ..CX1,ABSOLUTE,<
CAM'T AC,[MSK]>
.IF ..CX1,ABSOLUTE,< ;;MASK IS TESTABLE
..CX2==0 ;;MARK NOT DONE
IFE <..CX1&^O777777B17>,<
..CX2==1 ;;LH 0 CAN DO CAI
CAI'T AC,MSK>
IFE ..CX2,< ;;MUST USE CAM
CAM'T AC,[MSK]>
PURGE ..CX1,..CX2>>
IFNDEF .PSECT,<
..CX2==0 ;;MARK NOT DONE
IFE <..CX1&^O777777B17>,<
..CX2==1 ;;LH 0 CAN USE CAI
CAI'T AC,MSK>
IFE ..CX2,< ;;MUST USE CAM
CAM'T AC,[MSK]>
PURGE ..CX1,..CX2>>
SUBTTL TX -- TEST MASK
;CREATE THE TX MACRO DEFINITIONS
;THIS DOUBLE IRP CAUSES ALL COMBINATIONS OF MODIFICATION AND TESTING
;TO BE DEFINED
DEFINE ..DOTX (M,T)<
IRP M,<
IRP T,<
DEFINE TX'M'T (AC,MSK)<
..TX(M'T,AC,<MSK>)>>>>
..DOTX (<N,O,Z,C>,<,E,N,A>) ;DO ALL DEFINITIONS
PURGE ..DOTX
;..TX
;ALL TX MACROS JUST CALL ..TX WHICH DOES ALL THE WORK
DEFINE ..TX(MT,AC,MSK)<
..TX1==MSK ;;EVAL EXPRESSION IF ANY
IFDEF .PSECT,<
.IFN ..TX1,ABSOLUTE,<
TD'MT AC,[MSK]>
.IF ..TX1,ABSOLUTE,< ;;MASK MUST BE TESTABLE
..TX2==0 ;;FLAG SAYS HAVEN'T DONE IT YET
IFE <..TX1&^O777777B17>,<
..TX2==1 ;;LH 0, DO AS RH
TR'MT AC,..TX1>
IFE ..TX2,< ;;IF HAVEN'T DONE IT YET,
IFE <..TX1&^O777777>,<
..TX2==1 ;;RH 0, DO AS LH
TL'MT AC,(..TX1)>>
IFE ..TX2,< ;;IF HAVEN'T DONE IT YET,
IFE <<..TX1>B53-^O777777>,< ;;IF LH ALL ONES,
..TX3 (MT,AC)>> ;;TRY Z,O,C SPECIAL CASES
IFE ..TX2,< ;;IF STILL HAVEN'T DONE IT,
TD'MT AC,[..TX1]> ;;MUST GIVE UP AND USE LITERAL
PURGE ..TX1,..TX2>>
IFNDEF .PSECT,<
..TX2==0 ;;FLAG SAYS HAVEN'T DONE IT YET
IFE <..TX1&^O777777B17>,<
..TX2==1 ;;LH 0, DO AS RH
TR'MT AC,..TX1>
IFE ..TX2,< ;;IF HAVEN'T DONE IT YET,
IFE <..TX1&^O777777>,<
..TX2==1 ;;RH 0, DO AS LH
TL'MT AC,(..TX1)>>
IFE ..TX2,< ;;IF HAVEN'T DONE IT YET,
IFE <<..TX1>B53-^O777777>,< ;;IF LH ALL ONES,
..TX3 (MT,AC)>> ;;TRY Z,O,C SPECIAL CASES
IFE ..TX2,< ;;IF STILL HAVEN'T DONE IT,
TD'MT AC,[..TX1]> ;;MUST GIVE UP AND USE LITERAL
PURGE ..TX1,..TX2>>
;SPECIAL CASE FOR LH ALL ONES
DEFINE ..TX3 (MT,AC)<
IFIDN <MT><Z>,< ;;IF ZEROING WANTED
..TX2==1
ANDI AC,^-..TX1> ;;CAN DO IT WITH ANDI
IFIDN <MT><O>,< ;;IF SET TO ONES WANTED
..TX2==1
ORCMI AC,^-..TX1> ;;CAN DO IT WITH IORCM
IFIDN <MT><C>,< ;;IF COMPLEMENT WANTED
..TX2==1
EQVI AC,^-..TX1>> ;;CAN DO IT WITH EQV
;VARIENT MNEMONICS FOR TX DEFINITIONS
DEFINE IORX (AC,MSK)<
TXO AC,<MSK>>
DEFINE ANDX (AC,MSK)<
TXZ AC,<^-<MSK>>>
DEFINE XORX (AC,MSK)<
TXC AC,<MSK>>
SUBTTL SUBFUNCTION MACROS
;.IF0 CONDITION, ACTION IF CONDITION 0, ACTION OTHERWISE
DEFINE .IF0 (COND,THEN,ELSE)<
..IFT==COND ;;GET LOCAL VALUE FOR CONDITION
IFE ..IFT,<
THEN
..IFT==0> ;;RESTORE IN CASE CHANGED BY NESTED .IF0
IFN ..IFT,<
ELSE>>
;CASE (NUMBER,<FIRST,SECOND,...,NTH>)
DEFINE .CASE (NUM,LIST)<
..CSN==NUM
..CSC==0
IRP LIST,<
IFE ..CSN-..CSC,<
STOPI
..CAS1 (LIST)>
..CSC==..CSC+1>>
DEFINE ..CAS1 (LIST)<
LIST>
;TEST FOR FULL WORD, RH, LH, OR ARBITRARY BYTE
DEFINE ..TSIZ (SYM,MSK)<
SYM==3 ;;ASSUME BYTE UNLESS...
IFE <MSK>+1,<SYM=0> ;;FULL WORD IF MASK IS -1
IFE <MSK>-^O777777,<SYM==1> ;;RH IF MASK IS 777777
IFE <MSK>-^O777777B17,<SYM==2>> ;;LH IF MAST IS 777777,,0
;TEST FOR LOC BEING AN AC -- SET SYM TO 1 IF AC, 0 IF NOT AC
DEFINE ..TSAC (SYM,LOC)<
IFNDEF .PSECT,<
SYM==0 ;;ASSUME NOT AC UNLESS...
..TSA1==<Z LOC> ;;LOOK AT LOC
IFE ..TSA1&^O777777777760,<SYM==1> ;;AC IF VALUE IS 0-17
>
IFDEF .PSECT,<
SYM==0 ;;ASSUME NOT AC UNLESS...
..TSA1==<Z LOC> ;;LOOK AT LOC
.IF ..TSA1,ABSOLUTE,< ;;SEE IF WE CAN TEST VALUE
IFE ..TSA1&^O777777777760,<SYM==1>> ;;AC IF VALUE IS 0-17
PURGE ..TSA1>>
;FUNCTION TO TEST FOR MASK CONTAINING EXACTLY ONE BIT. RETURNS
;1 IFF LEFTMOST BIT AND RIGHTMOST BIT ARE SAME
DEFINE ..ONEB (SYM,MSK)<
SYM==<<<-<MSK>>&<MSK>>&<1B<^L<MSK>>>>>
SUBTTL STKVAR - STACK VARIABLE FACILITY
;MACRO FOR ALLOCATING VARIABLES ON THE STACK. ITS ARGUMENT IS
;A LIST OF ITEMS. EACH ITEM MAY BE:
; 1. A SINGLE VARIABLE WHICH WILL BE ALLOCATED ONE WORD
; 2. A VARIABLE AND SIZE PARAMETER WRITTEN AS <VAR,SIZ>. THE
; VARIABLE WILL BE ALLOCATED THE SPECIFIED NUMBER OF WORDS.
;RETURN FROM A SUBROUTINE USING THIS FACILITY MUST BE VIA
;RET OR RETSKP. A DUMMY RETURN WHICH FIXES UP THE STACK IS PUT ON
;THE STACK AT THE POINT THE STKVAR IS ENCOUNTERED.
;WITHIN THE RANGE OF A STKVAR, PUSH/POP CANNOT BE USED AS THEY WILL
;CAUSE THE VARIABLES (WHICH ARE DEFINED AS RELATIVE STACK LOCATIONS)
;TO REFERENCE THE WRONG PLACE.
;TYPICAL USE: STKVAR <AA,BB,<QQ,5>,ZZ>
EXTERN .STKST
DEFINE STKVAR (ARGS)<
..STKR==10 ;;REMEMBER RADIX
RADIX 8
..STKN==0
IRP ARGS,<
.STKV1 (ARGS)>
JSP .SAC,.STKST
..STKN,,..STKN
RADIX ..STKR
PURGE ..STKN,..STKR,..STKQ
>
;INTERMEDIATE MACRO TO PEAL OFF ANGLEBRACKETS IF ANY
DEFINE .STKV1 (ARG)<
.STKV2 (ARG)>
;INTERMEDIATE MACRO TO CALCULATE OFFSET AND COUNT VARIABLES
DEFINE .STKV2 (VAR,SIZ)<
IFB <SIZ>,<..STKN==..STKN+1>
IFNB <SIZ>,<..STKN==..STKN+SIZ>
..STKQ==..STKN+1
.STKV3 (VAR,\..STKQ)>
;INNERMOST MACRO TO DEFINE VARIABLE
DEFINE .STKV3 (VAR,LOC)<
IFDEF VAR,<.IF VAR,SYMBOL,<PRINTX STKVAR VAR ALREADY DEFINED>>
DEFINE VAR<-^O'LOC(P)>
$'VAR==<Z VAR>> ;SYMBOL FOR DDT
SUBTTL SAVE MACRO DEFINITION
;VARIABLE SAVE FACILITY -- ACCEPTS A LIST OF ARGUMENTS
; $SAVE <LIST-OF-VARIABLES>
;AUTOMATICALLY RESTORES ALL NAMED VARIABLES ON RETURN FROM ROUTINE
; SUPPORTS +1 OR +2 RETURNS
;IF AN APPROPRIATE CO-ROUTINE IS DEFINED IN CPACOM FOR THE DESIRED
;AC'S IT IS USED, OTHERWISE OPEN PUSHES AND A DUMMY RESTORE ROUTINE
;ARE GENERATED.
;IF THE SAME SET OF VARIABLES IS SAVED MORE THAN ONCE IN A PROGRAM,
;THE RESTORE ROUTINE GENERATED IN THE LITERALS IS SHARED BETWEEN THE
;TWO SAVES.
EXTERN .SAVE1,.SAVE2,.SAVE3,.SAVE4,.SAVET,.SV13,.SV14,.SV15,.SV16, .ZCHNK
DEFINE SAVE (ARG) <PRINTX % Replacing SAVE with $SAVE
$SAVE <ARG>>
DEFINE $SAVE(ARG,%L1)<
.NVR==0 ;;INITILIZE VARIABLE COUNT
.ACM==0 ;;INITIALIZE AC MASK
IRP ARG,< ;;BUILD AC MASK AND PUSH OTHER VARIABLES
..TSAC(.ACB,ARG) ;;IS IT AN AC?
IFN .ACB,<.ACM==.ACM!1B<ARG>> ;;YES -- BUILD MASK
IFE .ACB,< ;;NO -- PUSH IT
IFE .NVR,< ;;FIRST VARIABLE?
CAIA ;;YES -- DO SKIP CODE
LSTOF.
JRST %L1>
..PUSH(ARG,\<.NVR+1>)>> ;;PUSH IT AND BUMP COUNT
IFN .ACM,< ;;CHECK FOR PROPER AC CO-ROUTINE
IFE <.ACM-17B<T4>>,<.ACM==0
$CALL .SAVET>
IFE <.ACM-377B<.A16>>,<.ACM==0
$CALL .SAVE8>
IFE <.ACM-17B<P4>>,<.ACM==0
$CALL .SAVE4>
IFE <.ACM-7B<P3>>,<.ACM==0
$CALL .SAVE3>
IFE .NVR,< ;;DON'T DO CO-ROUTINE IF OTHER VARIABLES
IFE <.ACM-3B<P2>>,<.ACM==0
$CALL .SAVE2>
IFE <.ACM-1B<P1>>,<.ACM==0
$CALL .SAVE1>
IFE <.ACM-1B<.A13>>,<.ACM==0
$CALL .SV13>
IFE <.ACM-1B<.A14>>,<.ACM==0
$CALL .SV14>
IFE <.ACM-1B<.A15>>,<.ACM==0
$CALL .SV15>
IFE <.ACM-1B<.A16>>,<.ACM==0
$CALL .SV16>
>>
;;SAVE IS CONITINUED ON NEXT PAGE
;;SAVE MACRO CONTINUED FROM PREVIOUS PAGE
IFN .ACM,< ;;PUSH THE AC'S IF NOT DONE BY CO-ROUTINE
IFE .NVR,< ;;FIRST ONE?
CAIA ;;YES -- DO SKIP CODE
LSTOF.
JRST %L1>
.ACB==0 ;;START AT AC0
REPEAT ^D16,< ;;LOOP THRU ALL 16
IFN <.ACM&1B<.ACB>>,< ;;WAS IT GIVEN?
..PUSH(\.ACB,\<.NVR+1>)>;;YES -- PUSH IT
.ACB==.ACB+1>> ;;STEP TO NEXT
IFN .NVR,< ;;BUILD DUMMY ROUTINE TO RESTORE ALL PUSHES
PUSH P,[[CAIA ;;HERE FOR NON SKIP RETURN
AOS -.NVR(P) ;;HANDLE SKIP RETURN
REPEAT .NVR,<..POP(\.NVR)> ;;POP ALL THINGS STACKED
POPJ P,0]]> ;;RETURN TO CALLER
LSTON.
%L1: SUPPRESS %L1>
DEFINE ..PUSH(ARG,.NVX)<
PUSH P,ARG
.NV'.NVX==ARG
.NVR==.NVR+1>
DEFINE ..POP(.NVX)<
POP P,.NV'.NVX
PURGE .NV'.NVX
.NVR==.NVR-1>
SUBTTL LOAD,STORE,INCR,DECR,ZERO
DEFINE LOAD (AC,Y,STR)<
IFNB <STR>,<..STR0 (..LDB,AC,STR,Y)>
IFB <STR>,<MOVE AC,Y>> ;;DEFAULT TO FULL WORD MOVE
DEFINE ..STR0 (OP,AC,STR,Y)<
IFNDEF STR,<PRINTX STR IS NOT DEFINED
OP (<AC>,Y,FWMASK)> ;;RESERVE A WORD, ASSUME WORD MASK
IFDEF STR,<
IFNDEF %'STR,<
OP (<AC>,Y,STR)> ;;ASSUME NO OTHER LOCN
IFDEF %'STR,<
%'STR (OP,<AC>,Y,STR)>>> ;;DO IT
DEFINE ..LDB (AC,LOC,MSK)<
..TSIZ (..PST,MSK)
.CASE ..PST,<<
MOVE AC,LOC>,<
HRRZ AC,LOC>,<
HLRZ AC,LOC>,<
LDB AC,[POINTR (LOC,MSK)]>>>
DEFINE STORE (AC,Y,STR)<
IFNB <STR>,<..STR0 (..DPB,AC,STR,Y)>
IFB <STR>,<MOVEM AC,Y>> ;;DEFAULT FULL WORD MOVE
DEFINE ..DPB (AC,LOC,MSK)<
..TSIZ (..PST,MSK)
.CASE ..PST,<<
MOVEM AC,LOC>,<
HRRM AC,LOC>,<
HRLM AC,LOC>,<
DPB AC,[POINTR (LOC,MSK)]>>>
DEFINE INCR (Y,STR)<
IFNB <STR>,<..STR0 (.INCR0,,<STR>,Y)>
IFB <STR>,<AOS Y>> ;;DEFAULT FULL WORD INCR
DEFINE .INCR0 (AC,LOC,MSK)<
..PST==MSK-FWMASK
.IF0 ..PST,<
AOS LOC>,< ;;FULL WORD, CAN USE AOS
$CALL .AOS ;;MUST USE SUPPORT CODE
LSTOF.
JUMP [POINTR(LOC,MSK)]
LSTON.>>
DEFINE DECR (Y,STR)<
IFNB <STR>,<..STR0 (.DECR0,,<STR>,Y)>
IFB <STR>,<SOS Y>> ;;DEFAULT FULL WORD DECR
DEFINE .DECR0 (AC,LOC,MSK)<
..PST==MSK-FWMASK
.IF0 ..PST,<
SOS LOC>,< ;;FULL WORD, CAN USE SOS
$CALL .SOS ;;MUST USE SUPPORT CODE
LSTOF.
JUMP [POINTR(LOC,MSK)]
LSTON.>>
SUBTTL $BUILD,$SET,$EOB - Build pre-formed data blocks
;Many components have a need to build simple and complex blocks which
; contain pre-formatted data, such as FOBs,IBs and other blocks
; which are made up of several words, each containing from 1 to several
; fields. Since data structures change, these blocks should not be
; just created using EXP or whatever. These macros will take values
; and install them in the right field and word of a structure.
; Start off a structure, argument is the size of the structure.
DEFINE $BUILD(SIZE)<
IFDEF ..BSIZ,<PRINTX ?Missing $EOB after a $BUILD>
..BSIZ==0 ;;START COUNTER
..BLOC==. ;;REMEMBER OUR STARTING ADDRESS
REPEAT SIZE,< ;;FOR EACH WORD IN THE BLOCK
BLD0.(\..BSIZ,0) ;;ZERO OUT IT'S ACCUMULATOR
..BSIZ==..BSIZ+1> ;;AND STEP TO NEXT
>;END OF $BUILD DEFINITION
; For each value installed somewhere in the structure, set it into the block
; Arguments are word offset,field in word (optional) and value to set.
DEFINE $SET(OFFSET,STR,VALUE),<
IFNDEF ..BSIZ,<PRINTX ?$SET without previous $BUILD>
IFNB <STR>,<..STR0 (..SET,<VALUE>,STR,OFFSET)>
IFB <STR>,<..STR0 (..SET,<VALUE>,FWMASK,OFFSET)>
> ; END OF $SET DEFINITION
DEFINE ..SET (VALUE,LOC,MSK) <
IFGE <<<LOC>&777777>-..BSIZ>,<
PRINTX ?WORD offset greater than $BUILD size parameter>
SET0. (\<LOC>,MSK,<VALUE>)
> ;END ..SET DEFINITION
; After all values are declared, the block must be closed to do its actual
; creation.
DEFINE $EOB,<
IFNDEF ..BSIZ,<PRINTX ?$EOB without previous $BUILD>
IFN <.-..BLOC>,<PRINTX ?Address change between $BUILD and $EOB>
LSTOF. ;;DON'T SHOW THE BLOCK
..T==0
REPEAT ..BSIZ,<
BLD0.(\..T,1) ;;STORE EACH WORD
..T==..T+1 >
PURGE ..BSIZ,..T,..BLOC ;;REMOVE SYMBOLS
LSTON.
>; END OF $EOB DEFINITION
DEFINE BLD0.(N,WHAT),<
IFE WHAT,<..T'N==0>
IFN WHAT,<EXP ..T'N
PURGE ..T'N>
> ;END OF BLD0. DEFINITION
DEFINE SET0.(LOC,MSK,VALUE),<
IFN <<..T'LOC>&MSK>,<PRINTX ?Initial field not zero in $SET>
..TVAL==<VALUE>
..TMSK==<MSK>
..T'LOC==..T'LOC!<FLD(..TVAL,..TMSK)>
PURGE ..TVAL,..TMSK
>;END OF SET0. DEFINITION
SUBTTL $CALL,$RETT,$RETF,$RETE,$RET Uniform Call/Return Mechanisms
; All routines which follow CMDPAR Conventions should call
; library routines and internal routines which return TRUE/FALSE
; values with the $CALL Macro. This provides a uniform calling
; mechanism.
; All routines which follow CMDPAR conventions should return
; via one of the return instructions. These instructions set the contents
; of the true/false register, TF and then return via POPJ P,.
; If a routine wishes to merely pass on the value of the TF register
; it should return using a $RET
EXTERN .RETT,.RETF,.RETE,.RET,.POPJ
DEFINE $CALL(NAME$)<
IF2,<IFNDEF NAME$,<EXTERN NAME$>>
PUSHJ P,NAME$
>
; $RETE is the instruction used to return FALSE from a routine and also
; set a specific error code in the first status register, S1. The argument
; provided to the instruction is a 3 letter CMDPAR canonical error code.
; The effect of the $RETE instruction is to place the value of the
; CMDPAR error code into S1, place FALSE into TF and return via POPJ.
DEFINE $RETE (COD) <
JSP TF,.RETE ;;GO TO SUPPORT COD
LSTOF.
JUMP ER'COD'$
LSTON.> ;;END OF $RETE DEFINITION
;$RETT is the instruction used to place a value of TRUE into the TF register
; and return from the routine. This instruction is used when a routine
; wishes to indicate to its caller that it is returning successfully.
; $RETT is defined during the PROLOG macro
; OPDEF $RETT PJRST .RETT]
;$RETF is the instruction used to place a value of FALSE into the TF register
; and return from the routine. This instruction is used when a routine
; wishes to indicate to its caller that is returning unsuccessfully.
; $RETF is defined during the PROLOG macro
; OPDEF $RETF [PJRST .RETF]
;$RET is the instruction used to return the last value of TF to the caller
OPDEF $RET [POPJ P,] ;;RETURN CURRENT VALUE OF TF
SUBTTL $DATA and $GDATA Macros - Runtime System Data Area control
;This macro is used to define impure storage areas. The actual
;areas are created at run-time by the memory manager. The first argument
; is the name of the word(s) to be allocated. This name may be referenced
; as any other labelled location. The second argument is the number of
; words to allocate. If omitted, this defaults to 1.
;In order to facilitate debugging of new library routines, the $DATA and
; $GDATA macros produce BLOCK pseudo-op type locations when used
; in a module whose PROLOG indicates it is not part of the library.
; This means that a new library module may be loaded with a test program
; as a non-library piece of code while it is being debugged.
DEFINE $DATA(NAM,SIZ<1>)<
.PSECT DATA
NAM: BLOCK SIZ
.ENDPS
> ;END OF $DATA DEFINITION
; $GDATA is exactly like $DATA, except that the location defined
; is GLOBAL, that is, available to other programs.
DEFINE $GDATA(NAM,SIZ<1>)<
INTERN NAM
$DATA(NAM,<SIZ>)
> ;END OF $GDATA DEFINITION
SUBTTL TYPE OUT MACROS
;$TEXT PUTS OUT AN ARBITRARY ASCIZ STRING
;
EXTERN K%SOUT
DEFINE $TEXT(STRING)<
PUSHJ P,[ ;;CALL PRINT OUT ROUTINE
MOVEI S1,[ASCIZ\STRING\] ;;WITH THIS ARG
PJRST K%SOUT] ;;DO IT
>
;$FATAL is provided as a short form STOP code. It should
;be used when it is impossible to proceed because
;the program doesn't have proper priviledges or can't find a required
;file -- or any other occassion where the full stopcode information
;is irrelevant or misleading
;CALL $FATAL <any valid $TEXT string argument>
;
DEFINE $FATAL (STRING) <
$TEXT <?'STRING>
> ;END OF $FATAL DEFINITION
;$WARN May be used when it is desired to issue a warning on the
;users terminal.
;CALL $WARN <any valid $TEXT string argument>
;
DEFINE $WARN (STRING) <
$TEXT <%'STRING> ;;TEXT TO PUT OUT
>
SUBTTL STOPPING A PROGRAM
;$STOP(CODE,STRING)
;WHERE CODE = A UNIQUE 3 CHARACTER INDICATION OF THE STOP CODE
; AND
;STRING IS AN EXPANDED STRING ASSOCIATED WITH THE ERROR CONDITION
; I.E.: $STOP(NFP,No free pages)
DEFINE $STOP(CODE,STRING),<
JRST [$TEXT(?'CODE' 'STRING) ;;PUT OUT MSG
$CALL .STOP] ;;EXIT TO MONITOR
>
SYSPRM $HALT,<EXIT 1,>,<HALTF> ;EXIT WITHOUT RESET
SUBTTL System error codes
DEFINE ERRORS,<
ERR EOF,<End Of File>
ERR IFP,<Illegal file position>
ERR FDE,<File Data Error>
ERR FND,<File is not on disk>
ERR NSD,<No such device>
ERR SLE,<A System Limit Was Exceeded>
ERR IFS,<Illegal File Specification>
ERR FNF,<File Not Found>
ERR PRT,<Protection Violation>
ERR DNA,<Device Was Not Available>
ERR FDS,<Files are on different structures>
ERR FAE,<File already exists>
ERR USE,<Unexpected System Error>
ERR TBF,<The Command Table is full>
ERR EIT,<Entry already exists in the table>
ERR ITE,<Invalid Table Entry>
ERR QEF,<Quota Exceeded or Disk Full>
ERR ARG,<Invalid Argument>
> ;END DEFINE ERRORS
;GENERATE THE ERROR SYMBOLS
ER%%%==1 ;DON'T USE ERROR CODE 0
DEFINE ERR(A,B),<
ER'A'$==ER%%%
ER%%%==ER%%%+1
> ;END DEFINE ERR
ERRORS
SUBTTL Canonical File Information
;In order to bring the number of feature test switches needed to the
;absolute minimum, the GLXFIL (file handler) module makes information
;about open files available through the F%INFO routine call. The
;particular piece of information desired is designated by providing
;a canonical descriptor for that piece of information.
;These FI.xxx symbols, defined here, are the F%INFO descriptors
DEFINE CFI<
LSTOF.
X CRE ;;UDT FORMAT CREATION DATE/TIME OF FILE
X GEN ;;VERSION/GENERATION NUMBER OF FILE
X PRT ;;PROTECTION OF THE FILE
X CLS ;;CLASS OF FILE (TOPS-20) ONLY
X AUT ;;AUTHOR OF THE FILE
X USW ;;USER SETTABLE WORD
X SPL ;;SPOOL WORD (TOPS-10)
X SIZ ;;SIZE OF FILE, IN BYTES
X MOD ;;DATA MODE
X CHN ;;FILE CHANNEL # (CHN OR JFN)
LSTON.
> ;END OF CFI DEFINITION
;CREATE THE SYMBOLS
FI.%%%==0
DEFINE X(A)<
FI.'A==FI.%%%
FI.%%%==FI.%%%+1
>
CFI
SUBTTL FD - File Descriptor and Miscellaneous File Parameters
; PARAMETERS USED BY: GLXFIL
SYSPRM SZ.IFN,^D30,^D30 ;NUMBER OF FILES OPEN SIMULTANEOUSLY
SYSPRM SZ.BUF,406,400 ;SIZE OF BUFFER AREA
SYSPRM SZ.OBF,200,400 ;MAXIMUM WORDS XFERRED ON F%?BUF CALL
SYSPRM .PRIIN,377776,.PRIIN ;PRIMARY INPUT JFN
SYSPRM .PRIOU,377777,.PRIOU ;PRIMARY OUTPUT JFN
SYSPRM .NULIO,377775,.NULIO ;NULL I/O JFN
; The FD (File Descriptor) is the data structure used to pass a system
; dependent file description to subroutines or as part of a larger
; message or data structure.
PHASE 0
.FDLEN:! BLOCK 1 ;LENGTH WORD
FD.LEN==-1,,0 ;MASK TO LENGTH FIELD
.FDFIL:! ;FIRST WORD OF FILESPECIFICATION
DEPHASE
TOPS10 < ;FILE DESCRIPTOR FOR TOPS10
; !=======================================================!
; ! LENGTH OF THE FD !
; !-------------------------------------------------------!
; ! STRUCTURE CONTAINING THE FILE !
; !-------------------------------------------------------!
; ! FILE NAME !
; !-------------------------------------------------------!
; ! EXTENSION !
; !-------------------------------------------------------!
; ! [P,PN] !
; !=======================================================!
; ! !
; ! SFD PATH FOR THE FILE !
; ! THESE WORDS ARE OPTIONAL !
; ! AND CAN BE OF LENGTH 0 TO 5 !
; ! !
; !=======================================================!
PHASE .FDFIL
.FDSTR:! BLOCK 1 ;STRUCTURE CONTAINING THE FILE
.FDNAM:! BLOCK 1 ;THE FILE NAME
.FDEXT:! BLOCK 1 ;THE EXTENSION
.FDPPN:! BLOCK 1 ;THE OWNER OF THE FILE
FDMSIZ:! ;MINUMUM SIZE OF A FILE DESCRIPTOR
.FDPAT:! BLOCK 5 ;PATH (OPTIONAL AND FROM 0 TO 5 WORDS)
FDXSIZ:! ;MAXIMUM FD AREA SIZE
DEPHASE
> ;END OF TOPS10
;CONTINUED ON FOLLOWING PAGE
TOPS20 < ;FILE DESCRIPTOR FOR TOPS20
; !=======================================================!
; / /
; / /
; / THE FILE DESCRIPTOR ON TOPS20 IS AN ASCIZ STRING /
; / OF VARIABLE LENGTH AND READY TO BE GTJFN'ED /
; / /
; / /
; !=======================================================!
PHASE .FDFIL
.FDSTG:! BLOCK 1 ;ASCIZ STRING FOR GTJFN/OPENF SEQUENCE
FDMSIZ:! ;MINIMUM SIZE OF A FILE DESCRIPTOR
FDXSIZ==^D300/^D5 ;RESERVE ROOM FOR 300 CHARACTERS
DEPHASE
> ;END OF TOPS20
SUBTTL FOB - Parameter block passed to F%IOPN and F%OOPN
; THE FOLLOWING IS A DESCRIPTION OF THE BLOCK USED AS A PARAMETER
; PASSING AREA TO THE TWO FILE OPEN ROUTINES IN GLXFIL.
; !=======================================================!
; ! ADDRESS OF FD TO USE FOR FILE SPECIFICATION !
; !-------------------------------------------------------!
; ! !LSN!NFO!BYTE SIZE!
; !-------------------------------------------------------!
; ! FIRST HALF OF USER ID FOR "IN BEHALF OF" !
; !-------------------------------------------------------!
; ! CONNECTED DIRECTORY (TOPS-20 ONLY) !
; !=======================================================!
PHASE 0
FOB.FD:! BLOCK 1 ;POINTER TO FD AREA
FOB.CW:! BLOCK 1 ;CONTROL WORD
FB.LSN==1B28 ;LINE SEQUENCE NUMBERS APPEAR (IGNORE)
FB.NFO==1B29 ;NEW FILE ONLY (NON-SUPERSEDING)
FB.BSZ==77B35 ;BYTE SIZE OF THE FILE
FOB.MZ:! ;MINIMUM SIZE OF A FOB
FOB.US:! BLOCK 1 ;(OPTIONAL) USER ID FOR "IN BEHALF" OPERATIONS
FOB.CD:! BLOCK 1 ;(OPTIONAL) CONNECTED DIRECTORY (TOPS20)
FOB.SZ:! ;SIZE OF AN FOB
DEPHASE
SUBTTL Scanning and Command Module Symbols
;Define the major macro to expand X(y,z,...) for each terminal type
;Note well: the items in the TRMTYP macro MUST be in Alphabetical order
; so that TRMTYP can be used to build parse tables.
DEFINE TRMTYP,<
LSTOF.
X(33,TTY33,33,) ;;MODEL 33
X(35,TTY35,35,) ;;MODEL 35
TOPS20<
X(37,TTY37,37,) ;;MODEL 37
X(EXECUPORT,EXEC,EXE,) ;;TI EXECUPORT
>
X(LA36,LA36,L36,) ;;LA36
X(VT05,VT05,V05,<37,177,177,177>) ;;VT05
X(VT100,VT100,100,<.CHESC,"[","K">) ;;VT100
X(VT50,VT50,V50,<.CHESC,"J">) ;;VT50
X(VT52,VT52,V52,<.CHESC,"J">) ;;VT52
LSTON.
>;END DEFINE TRMTYP
;The general form of the X macro (which must be redefined just before invoking
;TRMTYP) is:
;X(PARNAM,SIXNAM,SUF,EOLSEQ)
;Where,
; PARNAM is the parseable name
; SIXNAM is the (TOPS-10) SIXBIT name for TRMOP. .TOTRM
; SUF is a 3-char suffix for .TTsuf and .TIsuf
; EOLSEQ is a sequence of bytes which will clear to end of line
;Note:
; .TTsuf is the code to be passed to K%STYP
; This value need not be the same on the -10 and the -20,
; but today, they are.
; .TIsuf is a number between 0 and .TIMAX (inclusive) which may
; be used to $BUILD and $SETup dispatch tables
;Now, define the .TIsuf symbols which are indicies into tables
;which contain 1 entry for each type of terminal
DEFINE X(PARNAM,SIXNAM,SUF,EOLSEQ),<
.TI'SUF==..Z
..Z==..Z+1>
..Z==0
LALL
TRMTYP ;Do 'em all!
.TIMAX==..Z-1 ;Set the max (must $BUILD (.TIMAX+1) still!)
PURGE ..Z
TOPS10<
;Define the .TTsuf symbols, since they're not in UUOSYM
DEFINE X(PARNAM,SIXNAM,SUF,EOLSEQ),<
.TT'SUF==..Z
..Z==..Z+1
>;END DEFINE X
..Z==0 ;Start at 0
TRMTYP ;Do 'em all!
PURGE ..Z
>;END TOPS10
; The following TOPS-20 symbols are defined when building a TOPS-10 library
; so that the emulation routines provided for scanning and command
; parsing can use the same symbols on both systems.
TOPS10 < ;ALREADY DEFINED ON THE -20
; RDTTY flags and argument offsets
.RDCWB==0 ;COUNT OF WORDS FOLLOWING
.RDFLG==1 ;FLAG BITS
RD%BRK==1B0 ; BREAK ON ^Z OR ESC
RD%TOP==1B1 ; BREAK ON TOPS-10 BREAK SET
RD%PUN==1B2 ; BREAK ON PUNCTUATION
RD%BEL==1B3 ; BREAK ON EOL
RD%CRF==1B4 ; EAT CARRIAGE RETURNS
RD%RND==1B5 ; RETURN IF EDITED TO BEGINNING
RD%JFN==1B6 ; IFN RATHER THAN STRING PTR
RD%RIE==1B7 ; NON-BLOCKING, I.E. RETURN IF EMPTY
RD%BBG==1B8 ; PTR TO DEST BUFFER IS IN .RDBFP
RD%RAI==1B10 ; CONVERT LOWER TO UPPER CASE
RD%SUI==1B11 ; SUPRESS ^U (RUBOUT LINE) HANDLING
RD%BTM==1B12 ; INPUT ENDED ON A BREAK
RD%BFE==1B13 ; USER DELETED TO BEGINNING
RD%BLR==1B14 ; BACKUP LIMIT REACHED
RD%NEC==1B35 ; NO ECHO ON ANYTHING (TOPS-10)
.RDIOJ==2 ;INPUT AND OUTPUT IFNS OR STRING POINTER
.RDDBP==3 ;DESTINATION BYTE POINTER
.RDDBC==4 ;NUMBER OF BYTES LEFT AFTER POINTER
.RDBFP==5 ;BEGINNING BYTE POINTER
.RDRTY==6 ;RE-TYPE PROMPT POINTER
.RDBRK==7 ;LOCATION OF 4 WORD BREAK SET TABLE
.RDBKL==10 ;REAL (ARBITRARY) BACKUP LIMIT
;; STILL UNDER TOPS10 CONDITIONAL
; COMMAND SCANNING (S%CMND) INTERFACE
;FORMAT OF COMND STATE BLOCK:
.CMFLG=0 ;USER FLAGS,,REPARSE DISPATCH ADDRESS
.CMIOJ=1 ;INJFN,,OUTJFN
.CMRTY=2 ;^R BUFFER POINTER
.CMBFP=3 ;PTR TO TOP OF BUFFER
.CMPTR=4 ;PTR TO NEXT INPUT TO BE PARSED
.CMCNT=5 ;COUNT OF SPACE LEFT IN BUFFER AFTER PTR
.CMINC=6 ;COUNT OF CHARACTERS FOLLOWING PTR
.CMABP=7 ;ATOM BUFFER POINTER
.CMABC=10 ;ATOM BUFFER SIZE
.CMGJB=11 ;ADR OF GTJFN ARG BLOCK
CM%GJB=777777 ;ADR OF GTJFN ARG BLOCK
> ;END TOPS10
SUBTTL PDB - PARSER DESCRIPTOR BLOCK DEFINITION
; THE PARSER DESCRIPTOR BLOCK (PDB) IS THE BASIC DATA STRUCTURE USED TO
;CONTROL THE ACTION OF THE PARSER ROUTINE. THE FULL-BLOWN PDB CONSISTS OF THE STANDARD
;FUNCTION DESCRIPTOR BLOCK (FDB) AS USED BY THE COMND JSYS, PLUS FOUR
;ADDITIONAL WORDS USED BY THE PARSER ROUTINE TO CONTROL THE PARSE.
;HOWEVER, UNNECESSARY WORDS AT THE END OF THE FDB AND PRIVATE PART OF PDB
;ARE NOT ALLOCATED WHEN POSSIBLE.
;FUNCTION DESCRIPTOR BLOCK
.CMFNP=0 ;FUNCTION AND POINTER
CM%FNC=777B8 ;FUNCTION CODE
CM%FFL=377B17 ;FUNCTION-SPECIFIC FLAGS
CM%LST=777777 ;LIST POINTER
.CMDAT=1 ;DATA FOR FUNCTION
.CMHLP=2 ;HELP TEXT POINTER
.CMDEF=3 ;DEFAULT STRING POINTER
.CMBRK==4 ;BREAK SET FOR CM%BRK
;THIS BLOCK DEFINES THE OFFSETS AFTER THE FDB FOR THE PDB
;RELATED ROUTINES.
PB%HDR==0 ;HEADER FOR THE BLOCK
PB.PDB==-1,,0 ;OFFSET FOR PDB LENGTH
PB.FDB==0,,-1 ;OFFSET FOR FDB LENGTH
PHASE 0
PB%NXT:! BLOCK 1 ;NEXT PDB TO USE
PB%RTN:! BLOCK 1 ;ACTION ROUTINE FOR THE PARSER
PB%ERR:! BLOCK 1 ;ERROR ROUTINE
PB%DEF:! BLOCK 1 ;DEFAILT FILLING ROUTINE
PB%SIZ:! ;SIZE OF MAXIMUM PDB DATA
DEPHASE
PDB.SZ==.CMBRK+PB%SIZ
SUBTTL CONSTANT DEFINITIONS FOR PARSER
NCHPW==5 ;NUMBER OF ASCII CHARACTERS PER WORD
BUFSIZ==200 ;SIZE OF INPUT TEXT BUFFER
ATMSIZ==BUFSIZ ;SIZE OF ATOM BUFFER FOR COMND JSYS
FDBSIZ==.CMDEF+2 ;SIZE OF FUNCTION DESCRIPTOR BLOCK
; GTJFN BLOCK FOR COMMAND
TOPS20 <GJFSIZ==.GJRTY+2> ;SIZE OF GTJFN BLOCK USED BY COMND JSYS
TOPS10 <GJFSIZ==FDXSIZ>
.RDSIZ==.RDBKL+1 ;SIZE OF ARGUMENT BLOCK
END