perm filename IALHDR.PAS[EAL,HE] blob sn#708959 filedate 1983-05-01 generic text, type C, neo UTF8
C00001 00001
C00002 00002	(* This file is the header file for the Interpreter modules. 		*)
C00006 00003	(* Random type declarations for OMSI/SAIL compatibility *)
C00008 00004	(* datatype definitions *)
C00011 00005	(* statement definitions *)
C00015 00006	(* auxiliary definitions: variable, etc. *)
C00017 00007	(* definition of the ubiquitous NODE record *)
C00024 00008	(* process descriptor blocks & environment record definitions *)
C00032 00009	(* definition of AL-ARM messages *)
C00034 00010	(* global variables *)
C00047 ENDMK
(* This file is the header file for the Interpreter modules. 		*)

(* It consists of definitions in ALHDR, with the type definitions	*)
(* for stuff the interpreter does not use removed.  Pointers to such 	*)
(* types have been replaced with the dummy pointer type "dump" (which	*)
(* may be confused with garbage).  The global variable section has	*)
(* not been changed, except to change those pointers whose type no 	*)
(* longer exists, to "dump".						*)

(* The following bits are used during calls to the ARM servo *)


  (* Constants from EDIT *)

  maxLines = 28;
  maxPPLines = 18;
  maxBpts = 25;
  maxTBpts = 20;	(* max could be exceeded by huge case stmnt *)
  listinglength = 2000;	(* Length of Listingarray *)

(* Random type declarations for OMSI/SAIL compatibility *)

  byte = 0..255;	(* doesn't really belong here, but... *)
  ascii = char; 
  atext = text;

{ Define all the pointer types here }

vectorp = ↑vector;
transp = ↑trans;
strngp = ↑strng;
eventp = ↑event;
framep = ↑frame;
statementp = ↑statement;
varidefp = ↑varidef;
nodep = ↑node;
pdbp = ↑pdb;
envheaderp = ↑envheader;
enventryp = ↑enventry;
environp = ↑environment;
cmoncbp = ↑cmoncb;
messagep = ↑message;

(* This one is used whenever a pointer is needed for which the 	*)
(* definition is missing from this file; naturally, all 	*)
(* pointers use the same space 					*)

dump = ↑integer;
token = array[1..4] of integer;		{Uses same space as a token}
cursorp = array[1..4] of integer;	{Ditto, for cursorp}
(* datatype definitions *)

datatypes = (pconstype, varitype, svaltype, vectype, rottype, transtype,
	     frametype, eventtype, strngtype, labeltype, proctype, arraytype,
	     reftype, valtype, cmontype, nulltype, undeftype,
	     dimensiontype, mactype, macargtype, freevartype);

scalar = real;

u = (used,free);
vector = record case u of
	   used: (refcnt: integer; val: array [1..3] of real);
	   free: (next: vectorp);

trans = record case u of
	   used: (refcnt: integer; val: array [1..3,1..4] of real);
	   free: (next: transp);

cstring = packed array [1..10] of ascii;
c4str = packed array [1..4] of ascii;
c5str = packed array [1..5] of ascii;
c20str = packed array [1..20] of ascii;
linestr = packed array [1..130] of ascii;

strng = record
	  next: strngp;
	  ch: cstring;

event = record
	  next: eventp;		(* all events are on one big list *)
	  count: integer;
	  waitlist: pdbp;

frame = record
	  vari: varidefp;	(* back pointer to variable name & info *)
	  calcs: nodep;		(* affixment info *)
	  case ftype: boolean of	(* frame = true, device = false *)
  true:	    (valid: integer; val, fdepr: transp; dcntr: integer; dev: framep);
  false:    (mech: integer; case sdev: boolean of
		true: (sdest: real); false: (tdest,appr,depr: transp));
		(* sdev = true for scalar devices, false for frames *)

(* statement definitions *)

stmntypes = (progtype, blocktype, coblocktype, endtype, coendtype,
		fortype, iftype, whiletype, untiltype, casetype,
		calltype, returntype,
		printtype, prompttype, pausetype, aborttype, assigntype,
		signaltype, waittype, enabletype, disabletype, cmtype,
		affixtype, unfixtype,
		floattype, stoptype, retrytype,
		requiretype, definetype, macrotype, commenttype, dimdeftype,
		setbasetype, wristtype, saytype, declaretype, emptytype,
		evaltype, armmagictype);
		(* more??? *)

statement = packed record
		next, last: statementp;
		stlab: varidefp;
		exprs: nodep;	(* any expressions used by this statement *)
		nlines: integer;
		bpt,bad: boolean;
		case stype: stmntypes of

    progtype:	    (pcode: statementp; errors: integer);
    coendtype:	    (bcode, bparent: statementp; blkid: dump;
			level, numvars: 0..255; variables: varidefp);
    coblocktype:    (threads: nodep; nthreads: integer; cblkid: dump);
    fortype:	    (forvar, initial, step, final: nodep; fbody: statementp);
    untiltype:	    (cond: nodep; body: statementp);
    casetype:	    (index: nodep; range, ncases: integer; caselist: nodep);
    iftype:	    (icond: nodep; thn, els: statementp);
    pausetype:	    (ptime: nodep);
    saytype:	    (plist: nodep; debugLev: integer);
    returntype:	    (retval, rproc: nodep);
    assigntype:     (what, aval: nodep);
    unfixtype:	    (frame1, frame2, byvar, atexp: nodep; rigid: boolean);
    waittype:	    (event: nodep);
    stoptype:	    (cf, clauses: nodep);
    retrytype:	    (rcode, rparent: statementp; olevel: integer);
    wristtype:	    (arm, ff, fvec, tvec: nodep; csys: boolean);
    cmtype:	    (oncond: nodep; conclusion: statementp;
			deferCm, exprCm: boolean; cdef: varidefp);
    disabletype:    (cmonlab: varidefp);
    requiretype:    (rfil: boolean; rfils: strngp; rfilen: integer);
    definetype:	    (macname,mpars: varidefp; macdef: dump);
    commenttype:    (len: integer; str: strngp; cbody: statementp);
    dimdeftype:	    (dimname: varidefp; dimexpr: nodep);
    armmagictype:   (cmdnum,dev,iargs,oargs: nodep);

(* auxiliary definitions: variable, etc. *)

varidef = packed record
	    next,dnext: varidefp;
	    name: dump;
	    level: 0..255;	(* environment level *)
	    offset: 0..255;	(* environment offset *)
	    dtype: varidefp;	(* to hold the dimension info *)
	    tbits: 0..15;  (* special type bits: array = 1, proc = 2, ref = 4 & ? *)
	    dbits: 0..15;	(* for use by debugger/interpreter *)
	    case vtype: datatypes of
  arraytype:  (a: nodep);
  proctype:   (p: nodep);
  cmontype:   (s: statementp);
  mactype:    (mdef: statementp);
  macargtype: (marg: dump);
  pconstype:  (c: nodep);
  dimensiontype: (dim: nodep);

(* definition of the ubiquitous NODE record *)

nodetypes = (exprnode, leafnode, listnode, clistnode, colistnode, forvalnode,
		deprnode, viaptnode, apprnode, destnode, byptnode, durnode,
		sfacnode, wobblenode, swtnode, nullingnode, wristnode, cwnode,
		arrivalnode, departingnode,
		ffnode, forcenode, stiffnode, gathernode, cmonnode, errornode,
		calcnode, arraydefnode, bnddefnode, bndvalnode,
		waitlistnode, procdefnode, tlistnode, dimnode, commentnode,
		linearnode, elbownode, shouldernode, flipnode, wrtnode,

exprtypes =  (	svalop,					(* scalar operators *)
		sltop, sleop, seqop, sgeop, sgtop, sneop,	(* relations *)
		notop, orop, xorop, andop, eqvop,		(* logical *)
		saddop, ssubop, smulop, sdivop, snegop, sabsop, (* scalar ops *)
		sexpop, maxop, minop, intop, idivop, modop,
		sqrtop, logop, expop, timeop,			(* functions *)
		sinop, cosop, tanop, asinop, acosop, atan2op,	(* trig *)
		vdotop, vmagnop, tmagnop,
		vecop,					(* vector operators *)
		vmakeop, unitvop, vaddop, vsubop, crossvop, vnegop,
		svmulop, vsmulop, vsdivop, tvmulop, wrtop,
		tposop, taxisop,
		transop,				(* trans operators *)
		tmakeop, torientop, ttmulop, tvaddop, tvsubop, tinvrtop,
		vsaxwrop, constrop, ftofop, deproachop, fmakeop, vmkfrcop,
		ioop,					(* i/o operators *)
		queryop, inscalarop,
		specop,					(* special operators *)
		arefop, callop, grinchop, macroop, vmop, adcop, dacop, jointop,
		addop, subop, negop, mulop, divop, absop); (* for parsing *)

leaftypes = pconstype..strngtype;

reltypes = sltop..sgtop;
forcetypes = (force,absforce,torque,abstorque,angvelocity);

node = record
	next: nodep;
	case ntype: nodetypes of
    exprnode:	(op: exprtypes; arg1, arg2, arg3: nodep; elength: integer);
    leafnode:	(case ltype: leaftypes of
	varitype:  (vari: varidefp; vid: dump);
	pconstype: (cname: varidefp; pcval: nodep);
	svaltype:  (s: scalar; wid: integer);
	vectype:   (v: vectorp);
	transtype: (t: transp);
	strngtype: (length: integer; str: strngp) ); (* also used by commentnodes *)
    listnode:	(lval: nodep);
    clistnode:	(cval: integer; stmnt: statementp; clast: nodep);
    colistnode:	(prev: nodep; cstmnt: statementp);
    forvalnode:	(fvar: enventryp; fstep: scalar);
    arrivalnode:(evar: varidefp);
    destnode:	(loc: nodep; code: statementp);
    viaptnode:	(vlist: boolean; via,vclauses: nodep; vcode: statementp);
    durnode:	(durrel: reltypes; durval: nodep);
    swtnode:	(clval: nodep);
    nullingnode,			(* true = nonulling *)
    wristnode,				(*	= don't zero force wrist *)
    cwnode,				(*	= counter_clockwise *)
    elbownode,				(*	= elbow up *)
    shouldernode,			(*	= right shoulder *)
    flipnode,				(*	= don't flip wrist *)
    linearnode:	(notp: boolean);	(*	= linear motion *)
    ffnode:	(ff,cf: nodep; csys, pdef: boolean); (* true = world, false = hand *)
    loadnode:	(loadval,loadvec: nodep; lcsys: boolean); (* lcsys = csys above *)
    forcenode:	(ftype: forcetypes; frel: reltypes; fval, fvec, fframe: nodep);
    stiffnode:	(fv, mv, cocff: nodep);
    gathernode:	(gbits: integer);
    cmonnode:	(cmon: statementp; errhandlerp: boolean);
    errornode:	(eexpr: nodep);
    calcnode: 	(rigid, frame1: boolean; other: framep; case tvarp: boolean of 
		    false: (tval: transp); true: (tvar: enventryp) );
    arraydefnode: (numdims: 1..10; bounds: nodep; combnds: boolean);
    bnddefnode:	(lower, upper: nodep);
    bndvalnode:	(lb, ub, mult: integer);
    waitlistnode: (who: pdbp; when: integer);
    procdefnode:(ptype: datatypes; level: 0..255;
		    pname, paramlist: varidefp; body: statementp);
    dimnode:	(time, distance, angle, dforce: integer);

(* process descriptor blocks & environment record definitions *)

queuetypes = (nullqueue,nowrunning,runqueue,inputqueue,eventqueue,sleepqueue,

pdb = packed record
	nextpdb,next: pdbp;	(* for list of all/active pdb's *)
	level: 0..255;		(* lexical level *)
	mode: 0..255;		(* expression/statement/sub-statement *)
	priority: 0..255;	(* probably never greater than 3? *)
	status: queuetypes;	(* what are we doing *)
	env: envheaderp;
	spc: statementp;	(* current statement *)
	epc: nodep;		(* current expression (if any) *)
	sp: nodep;		(* intermediate value stack *)
	cm: cmoncbp;		(* if we're a cmon point to our definition *)
	mech: framep;		(* current device being used *)
	linenum: integer;	(* used by editor/debugger *)
	 case procp: boolean of	(* true if we're a procedure *)
true:  (opdb: pdbp;		(* pdb to restore when procedure exits *)
	pdef: nodep);		(* procedure definition node *)
false: (evt: eventp;		(* event to signal when process goes away *)
	sdef: statementp);	(* first statement where process was defined *)

envheader = packed record
	      parent: envheaderp;
	      env: array [0..4] of environp;
	      varcnt: 0..255;		(* # of variables in use ??? *)
		case procp: boolean of  (* true if we're a procedure *)
	true: (proc: nodep);
	false:(block: statementp);

enventry = record
	    case etype: datatypes of
  svaltype:  (s: scalar);
  vectype:   (v: vectorp);
  transtype: (t: transp);
  frametype: (f: framep);
  eventtype: (evt: eventp);
  strngtype: (length: integer; str: strngp);
  cmontype:  (c: cmoncbp);
  proctype:  (p: nodep; penv: envheaderp);
  reftype:   (r: enventryp);
  arraytype: (a: envheaderp; bnds: nodep);

environment = record
		next: environp;
		vals: array [0..9] of enventryp;

cmoncb = record
	   running, enabled: boolean;		(* cmon's status *)
	   cmon: statementp;
	   pdb: pdbp;
	   evt: eventp;
	   fbits: integer;			(* bits for force sensing *)
	   oldcmon: cmoncbp;			(* for debugger *)

(* definition of AL-ARM messages *)

msgtypes = (initarmscmd,calibcmd,killarmscmd,wherecmd,

errortypes = (noerror,noarmsol,timerr,durerr,toolong,featna,

message = record
	   cmd: msgtypes;
	   ok: boolean;
	   case integer of
	1:   (dev, bits, n: integer;
(*	     (dev, bits, n, evt: integer;	(* for arm code version *)
	      evt: eventp;
	      dur: real;
	      case integer of
		1: (v1,v2,v3: real);
		2: (sfac,wobble,pos: real);
		3: (val,angle,mag: real);
		4: (max,min: real);
		5: (error: errortypes));
	2:   (fv1,fv2,fv3,mv1,mv2,mv3: real);	(* may never use these... *)
	3:   (t: array [1..6] of real);

interr = record
         case integer of
           0: (i: integer);
	   1: (err,foo: errortypes);

listingarray = packed array [0..listinglength] of ascii;
(* global variables *)

	(* from EDIT *)
    listing: listingarray;  (* first 150 chars are used by expression editor *)
			    (* next 40 by header & trailer lines *)
{*} cursorStack: array [1..15] of cursorp;	{These are BIG records! }
(*  lbuf: array [1..160] of ascii;
    ppBuf: array [1..100] of ascii; *)
    dum1: array[1..260] of ascii;
    lines: array [1..maxLines] of dump; 
    ppLines: array [1..maxPPLines] of dump;	
(*  marks: array [1..20] of integer;
    reswords: array [0..26] of reswordp;
    idents: array [0..26] of identp;
    macrostack: array [1..10] of tokenp;
    curmacstack: array [1..10] of varidefp;
    screenheight,dispHeight: integer;
    ppBufp,oppBufp,ppOffset,ppSize,nmarks: integer;
    lbufp,cursor,ocur,cursorLine,fieldnum,lineNum,findLine,pcLine: integer;
    firstDline,topDline,botDline,firstLine,lastLine,curLine: integer;
    freeLines,oldLines: linerecp;
    sysVars: varidefp;
    dProg: statementp;
    curBlock, newDeclarations, findStmnt: statementp;
    macrodepth: integer;
    filedepth, errCount, sCursor: integer;
    curChar, maxChar, curFLine, curPage: integer;
    nodim, distancedim, timedim, angledim,
      forcedim, torquedim, veldim, angveldim: varidefp;
    fvstiffdim, mvstiffdim: nodep;
    pnode: nodep;
*)  dum2: array[1..141] of dump;
(*  smartTerminal: boolean; 
      shownLine: boolean;
*)  dum3: array[1..16] of boolean;
    curtoken: token;
    file1,file2,file3,file4,file5,outFile: atext;

    bpts: array [1..maxBpts] of statementp;	(* debugging crap *)
    tbpts: array [1..maxTBpts] of statementp;
    debugPdbs: array [0..10] of pdbp;
    nbpts,ntbpts,debugLevel: integer;
    eCurInt: pdbp;
    STLevel: integer;
    singleThreadMode,tSingleThreadMode: boolean;

	(* from INTERP *)
    inputLine: array [1..20] of ascii;
    talk: text;			(* for using the speech synthesizer *)
    curInt, activeInts, readQueue, allPdbs: pdbp;
    sysEnv: envheaderp;
    clkQueue: nodep;
    allEvents: eventp;
    etime: integer;		(* used by eval *)
    curtime: integer; (* who knows where this will get updated - an ast? *)
    stime: integer;		(* used for clock queue on 10 *)
    msg: messagep;		(* for AL-ARM interaction *)
    inputp: integer;		(* current offset into inputLine array above *)
    resched, running, escapeI, iSingleThreadMode: boolean;
    msgp: boolean;		(* flag set if any messages pending *)
    inputReady: boolean;

(* various constant pointers *)
    xhat,yhat,zhat,nilvect: vectorp;
    niltrans: transp;
    gpark, rpark: transp;		(* arm park positions *)

(* various device & variable pointers *)
    speedfactor: enventryp;
    garm: framep;