instructions.c 82.7 KB
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/*
	(Concurrent) Clean Compiler: ABC instructions
	Authors:  Sjaak Smetsers & John van Groningen
*/

#pragma segment instructions

#include "compiledefines.h"
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#include "comsupport.h"
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#include "system.h"

#include <ctype.h>

#include "syntaxtr.t"
#include "checksupport.h"

#include "settings.h"
#include "sizes.h"
#include "codegen_types.h"
#include "codegen1.h"
#include "codegen2.h"
#include "instructions.h"
#include "statesgen.h"
#include "version.h"

#define BINARY_ABC 0
#undef MEMORY_PROFILING_WITH_N_STRING

#define PutSOutFile(s) FPutS ((s),OutFile)
#define PutCOutFile(s) FPutC ((s),OutFile)

static void error_in_function (char *m)
{
	ErrorInCompiler ("instructions.c",m,"");
}

#ifdef _STANDALONE_
/* also defined in project.c, only needed for stand alone compiler */

#define N_DoDebug				0
#define N_DoReuseUniqueNodes	1
#define N_DoParallel			2

#define N_NoDescriptors 3
/*
#define N_NoMemoryProfiling		3
*/
#define N_DoStrictnessAnalysis	4
#define N_NoTimeProfiling		5

#define N_ExportLocalLabels 6
/*
#define N_DoVerbose				6
*/
#define N_DoWarning				7
#define N_System				8

static void ConvertOptionsToString (CompilerOptions options,char *optstring)
{
	optstring[N_DoDebug]              = DoDebug ? '1' : '0';
	optstring[N_DoReuseUniqueNodes]   = !DoReuseUniqueNodes ? '1' : '0';
	optstring[N_DoParallel]           = DoParallel ? '1' : '0';

	optstring[N_NoDescriptors] = !DoDescriptors ? '1' : '0';
/*
	optstring[N_NoMemoryProfiling]    = !DoProfiling ? '1' : '0';
*/
	optstring[N_DoStrictnessAnalysis] = DoStrictnessAnalysis ? '1' : '0';

	optstring[N_NoTimeProfiling]      = !DoTimeProfiling ? '1' : '0';
	optstring[N_ExportLocalLabels] = ExportLocalLabels ? '1' : '0';
/*
	optstring[N_DoVerbose]            = DoVerbose ? '1' : '0';
*/
	optstring[N_DoWarning]            = DoWarning ? '1' : '0';
	optstring[N_System]               = '0';
	optstring[NR_OPTIONS]             = '\0';
}
#else
# define N_System				8
# include "cginterface.t"
# include "project.h"
#endif

#define D_PREFIX "d"
#define N_PREFIX "n"
#define L_PREFIX "l"

#define EA_PREFIX "ea"
#define S_PREFIX "s"

#define R_PREFIX "r"
#define RECORD_N_PREFIX "c"
#define RECORD_D_PREFIX "t"
#define CONSTRUCTOR_R_PREFIX "k"

#define LOCAL_D_PREFIX "d"

File OutFile;
char *ABCFileName;

Bool OpenABCFile (char *fname)
{
	OutFile = FOpen (fname, abcFile, "w");

	if (OutFile!=NULL){
#if defined (THINK_C) || defined (POWER)
		setvbuf ((FILE*) OutFile, NULL, _IOFBF, 8192);
#endif
		OpenedFile = OutFile;
		ABCFileName = fname;
		return True;
	} else
		return False;
}

void WriteLastNewlineToABCFile (void)
{
	FPutC ('\n',OutFile);
}

void CloseABCFile (char *fname)
{
	if (OutFile){
#ifdef THINK_C
		int file_io_error;
		
		file_io_error=ferror (OutFile);
#endif
		if (FClose (OutFile) != 0
#ifdef THINK_C
		||	file_io_error
#endif
		){
			CompilerError = True;
			CurrentLine = 0;
			
			StaticMessage (True, "<open file>", "Write error (disk full?)");
		}
		if (CompilerError)
			FDelete (fname, abcFile); 
		OpenedFile = (File) NIL;
	}
}

static Bool DescriptorNeeded (SymbDef sdef)
{
	return (sdef->sdef_exported || 
			(sdef->sdef_kind!=IMPRULE && sdef->sdef_kind!=SYSRULE) || 
			sdef->sdef_mark & SDEF_USED_CURRIED_MASK) ||
			((DoParallel || DoDescriptors) && (sdef->sdef_mark & (SDEF_USED_CURRIED_MASK | SDEF_USED_LAZILY_MASK)));
}

static void GenLabel (Label label)
{
	if (label->lab_issymbol){
		SymbDef def;
		char *module_name;

		def=label->lab_symbol;
		module_name = label->lab_mod;
		
		if (module_name!=NULL)
			FPrintF (OutFile,"e_%s_%s%s",module_name,label->lab_pref,def->sdef_ident->ident_name);
		else if (DoDebug){
			if (def->sdef_kind==IMPRULE)
				FPrintF (OutFile, "%s%s.%u",label->lab_pref,def->sdef_ident->ident_name,def->sdef_number);
			else
				FPrintF (OutFile, "%s%s",label->lab_pref,def->sdef_ident->ident_name);
		} else if (def->sdef_number==0)
			FPrintF (OutFile, "%s%s",label->lab_pref,def->sdef_ident->ident_name);
		else if (label->lab_pref[0] == '\0')
			FPrintF (OutFile,LOCAL_D_PREFIX "%u",def->sdef_number);
		else
			FPrintF (OutFile,"%s%u",label->lab_pref,def->sdef_number);
	} else {
		FPutS (label->lab_pref,OutFile);
		FPutS (label->lab_name,OutFile);
	}
	if (label->lab_post!=0)
		FPrintF (OutFile,".%u",label->lab_post);
}

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static void GenDescriptorOrNodeEntryLabel (Label label)
{
	if (label->lab_issymbol){
		SymbDef def;
		char *module_name;

		def=label->lab_symbol;
		module_name = label->lab_mod;
		
		if (module_name!=NULL)
			FPrintF (OutFile,"e_%s_%s%s",module_name,label->lab_pref,def->sdef_ident->ident_name);
		else if (ExportLocalLabels){
			if (def->sdef_kind==IMPRULE)
				FPrintF (OutFile,"e_%s_%s%s.%u",CurrentModule,label->lab_pref,def->sdef_ident->ident_name,def->sdef_number);
			else
				FPrintF (OutFile,"e_%s_%s%s",CurrentModule,label->lab_pref,def->sdef_ident->ident_name);
		} else if (DoDebug){
			if (def->sdef_kind==IMPRULE)
				FPrintF (OutFile, "%s%s.%u",label->lab_pref,def->sdef_ident->ident_name,def->sdef_number);
			else
				FPrintF (OutFile, "%s%s",label->lab_pref,def->sdef_ident->ident_name);
		} else if (def->sdef_number==0)
			FPrintF (OutFile, "%s%s",label->lab_pref,def->sdef_ident->ident_name);
		else if (label->lab_pref[0] == '\0')
			FPrintF (OutFile,LOCAL_D_PREFIX "%u",def->sdef_number);
		else
			FPrintF (OutFile,"%s%u",label->lab_pref,def->sdef_number);
	} else {
		FPutS (label->lab_pref,OutFile);
		FPutS (label->lab_name,OutFile);
	}
	if (label->lab_post!=0)
		FPrintF (OutFile,".%u",label->lab_post);
}

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static void GenGetWL (int offset)
{
	FPrintF (OutFile, "\n\tgetWL %d", offset);
}

static void GenPutWL (int offset)
{
	FPrintF (OutFile, "\n\tputWL %d", offset);
}

static void GenRelease (void)
{
	FPutS ("\n\trelease", OutFile);
}

static void TreatWaitListBeforeFill (int offset, FillKind fkind)
{
	if (DoParallel && fkind != NormalFill)
		GenGetWL (offset);	
}

static void TreatWaitListAfterFill (int offset, FillKind fkind)
{
	if (DoParallel){
		switch (fkind){
			case ReleaseAndFill:GenRelease ();		break;
			case PartialFill:	GenPutWL (offset);	break;
			default:							break;
		}
	}
}

#if !BINARY_ABC

#define put_instructionb(a) put_instruction(I##a)
#define put_instruction_b(a) put_instruction_(I##a)
#define put_directive_b(a) put_directive_(D##a)
#define put_arguments_i_b(i1) FPrintF (OutFile,"%s",(i1))
#define put_arguments_in_b(i1,n1) FPrintF (OutFile,"%s %d",(i1),(n1))
#define put_arguments_n_b(n1) FPrintF (OutFile,"%d",(n1))
#define put_arguments_nn_b(n1,n2) FPrintF (OutFile,"%d %d",(n1),(n2))
#define put_arguments_nnn_b(n1,n2,n3) FPrintF (OutFile,"%d %d %d",(n1),(n2),(n3))
#define put_arguments_nnnn_b(n1,n2,n3,n4) FPrintF (OutFile,"%d %d %d %d",(n1),(n2),(n3),(n4))
#define put_arguments_nnnnn_b(n1,n2,n3,n4,n5) FPrintF (OutFile,"%d %d %d %d %d",(n1),(n2),(n3),(n4),(n5))
#define put_arguments_n__b(n1) FPrintF (OutFile,"%d ",(n1))
#define put_arguments_nn__b(n1,n2) FPrintF (OutFile,"%d %d ",(n1),(n2))
#define put_arguments__n_b(n1) FPrintF (OutFile," %d",(n1))
#define put_arguments__nn_b(n1,n2) FPrintF (OutFile," %d %d",(n1),(n2))
#define put_arguments__n__b(n1) FPrintF (OutFile," %d ",(n1))

#else

/*
#define put_instructionb(a) put_instruction_code(C##a)
#define put_instruction_b(a) put_instruction_code(C##a)
#define put_directive_b(a) put_instruction_code(C##a)
*/

#define put_instructionb(a) if (DoDebug) put_instruction(I##a); else put_instruction_code(C##a)
#define put_instruction_b(a) if (DoDebug) put_instruction_(I##a); else put_instruction_code(C##a)
#define put_directive_b(a) if (DoDebug) put_directive_(D##a); else put_instruction_code(C##a)

static void put_n (long n)
{
	while (!(n>=-64 && n<=63)){
		FPutC (128+(n & 127),OutFile);
		n=n>>7;
	}

	FPutC (n+64,OutFile);
}

static long integer_string_to_integer (char *s_p)
{
	long integer;
	int minus_sign,last_char;
	
	minus_sign=0;
	last_char=*s_p++;
	if (last_char=='+' || last_char=='-'){
		if (last_char=='-')
			minus_sign=!minus_sign;
		last_char=*s_p++;;
	}
			
	integer=last_char-'0';
	last_char=*s_p++;;
	
	while ((unsigned)(last_char-'0')<10u){
		integer*=10;
		integer+=last_char-'0';
		last_char=*s_p++;;
	}
		
	if (minus_sign)
		integer=-integer;
	
	return integer;
}

static void put_arguments_i_b (char *i1)
{
	if (DoDebug)
		FPrintF (OutFile,"%s",(i1));
	else
		put_n (integer_string_to_integer (i1));
}

static void put_arguments_in_b (char *i1,long n1)
{
	if (DoDebug)
		FPrintF (OutFile,"%s %d",(i1),(n1));
	else {
		put_n (integer_string_to_integer (i1));
		put_n (n1);
	}
}

static void put_arguments_n_b (long n1)
{
	if (DoDebug)
		FPrintF (OutFile,"%d",(n1));
	else
		put_n (n1);
}

static void put_arguments_nn_b (long n1,long n2)
{
	if (DoDebug)
		FPrintF (OutFile,"%d %d",(n1),(n2));
	else {
		put_n (n1);
		put_n (n2);
	}
}

static void put_arguments_nnn_b (long n1,long n2,long n3)
{
	if (DoDebug)
		FPrintF (OutFile,"%d %d %d",(n1),(n2),(n3));
	else {
		put_n (n1);
		put_n (n2);
		put_n (n3);
	}
}

static void put_arguments_nnnn_b (long n1,long n2,long n3,long n4)
{
	if (DoDebug)	
		FPrintF (OutFile,"%d %d %d %d",(n1),(n2),(n3),(n4));
	else {
		put_n (n1);
		put_n (n2);
		put_n (n3);
		put_n (n4);
	}
}

static void put_arguments_nnnnn_b (long n1,long n2,long n3,long n4,long n5)
{
	if (DoDebug)
		FPrintF (OutFile,"%d %d %d %d %d",(n1),(n2),(n3),(n4),(n5));
	else {
		put_n (n1);
		put_n (n2);
		put_n (n3);
		put_n (n4);
		put_n (n5);
	}
}

static void put_arguments_n__b (long n1)
{
	if (DoDebug)
		FPrintF (OutFile,"%d ",(n1));
	else
		put_n (n1);
}

static void put_arguments__n_b (long n1)
{
	if (DoDebug)
		FPrintF (OutFile," %d",(n1));
	else {
		FPutC (' ',OutFile);
		put_n (n1);
	}
}

static void put_arguments__n__b (long n1)
{
	if (DoDebug)
		FPrintF (OutFile," %d ",(n1));
	else {
		FPutC (' ',OutFile);
		put_n (n1);
	}
}

static void put_arguments_nn__b (long n1,long n2)
{
	if (DoDebug)
		FPrintF (OutFile,"%d %d ",(n1),(n2));
	else {
		put_n (n1);
		put_n (n2);
	}
}

static void put_arguments__nn_b (long n1,long n2)
{
	if (DoDebug)
		FPrintF (OutFile," %d %d",(n1),(n2));
	else {
		FPutC (' ',OutFile);
		put_n (n1);
		put_n (n2);
	}
}

enum {
	Cbuild=136,
	Cbuildh,
	CbuildI,
	CbuildB_b,
	CbuildC_b,
	CbuildI_b,
	CbuildR_b,
	CbuildF_b,
	Ceq_desc,
	CeqD_b,
	CeqI_a,
	CeqI_b,
	Cfill,
	Cfillh,
	CfillI,
	CfillB_b,
	CfillC_b,
	CfillF_b,
	CfillI_b,
	CfillR_b,
	Cfill_a,
	Cjmp,
	Cjmp_false,
	Cjmp_true,
	Cjsr,
	Cjsr_eval,
	Cpop_a,
	Cpop_b,
	CpushB_a,
	CpushC_a,
	CpushI_a,
	CpushF_a,
	CpushR_a,
	CpushD,
	CpushI,
	Cpush_a,
	Cpush_b,
	Cpush_arg,
	Cpush_args,
	Cpush_args_u,
	Cpush_node,
	Cpush_node_u,
	Cpush_r_args,
	Cpush_r_args_a,
	Cpush_r_args_b,
	Cpush_r_args_u,
	Crepl_arg,
	Crepl_args,
	Crepl_r_args,
	Crepl_r_args_a,
	Crtn,
	Cupdate_a,
	Cupdate_b,
	Cupdatepop_a,
	Cupdatepop_b,
	
	Cd,
	Co,
	Cimpdesc,
	Cimplab,
	Cn
};
#endif

#define IbuildB "buildB"
#define IbuildC "buildC"
#define IbuildI "buildI"
#define IbuildR "buildR"
#define IbuildS "buildS"

#define IbuildB_b "buildB_b"
#define IbuildC_b "buildC_b"
#define IbuildF_b "buildF_b"
#define IbuildI_b "buildI_b"
#define IbuildR_b "buildR_b"

#define IfillB "fillB"
#define IfillC "fillC"
#define IfillI "fillI"
#define IfillR "fillR"
#define IfillS "fillS"

#define IfillB_b "fillB_b"
#define IfillC_b "fillC_b"
#define IfillI_b "fillI_b"
#define IfillR_b "fillR_b"
#define IfillF_b "fillF_b"

#define IeqB_a "eqB_a"
#define IeqC_a "eqC_a"
#define IeqI_a "eqI_a"
#define IeqR_a "eqR_a"
#define IeqS_a "eqS_a"

#define IeqAC_a "eqAC_a"

#define IeqB_b "eqB_b"
#define IeqC_b "eqC_b"
#define IeqI_b "eqI_b"
#define IeqR_b "eqR_b"

542
543
#define InotB "notB"

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#define IpushB "pushB"
#define IpushI "pushI"
#define IpushC "pushC"
#define IpushR "pushR"

#define IpushD "pushD"

#define IpushB_a "pushB_a"
#define IpushC_a "pushC_a"
#define IpushI_a "pushI_a"
#define IpushR_a "pushR_a"
#define IpushF_a "pushF_a"

#define IpushD_a "pushD_a"

#define Ipush_array "push_array"
#define Ipush_arraysize "push_arraysize"
#define Iselect "select"
#define Iupdate "update"
#define Ireplace "replace"

#define Ipush_arg "push_arg"
#define Ipush_args "push_args"
#define Ipush_args_u "push_args_u"
#define Ipush_r_args "push_r_args"
#define Ipush_r_args_u "push_r_args_u"
#define Ipush_r_args_a "push_r_args_a"
#define Ipush_r_args_b "push_r_args_b"
#define Irepl_arg "repl_arg"
#define Irepl_args "repl_args"
#define Irepl_r_args "repl_r_args"
#define Irepl_r_args_a "repl_r_args_a"

#define Ipush_node "push_node"
#define Ipush_node_u "push_node_u"

#define Ifill "fill"
#define Ifillcp "fillcp"
#define Ifill_u "fill_u"
#define Ifillcp_u "fillcp_u"
#define Ifillh "fillh"
#define Ifill1 "fill1"
#define Ifill2 "fill2"

#define Ibuild "build"
#define Ibuildh "buildh"
#define Ibuild_u "build_u"
#define IbuildAC "buildAC"

#define Ifill_r "fill_r"
#define Ifill1_r "fill1_r"
#define Ifill2_r "fill2_r"
#define Ifill3_r "fill3_r"

#define Ibuild_r "build_r"

#define Ifill_a "fill_a"

#define Ipush_a "push_a"
#define Ipush_b "push_b"

#define Ijsr_eval "jsr_eval"

#define Ipop_a "pop_a"
#define Ipop_b "pop_b"
#define Ieq_desc "eq_desc"
#define IeqD_b "eqD_b"

#define Ijmp_false "jmp_false"
#define Ijmp_true "jmp_true"
#define Ijmp "jmp"
#define Ijsr "jsr"

#define Icreate "create"
#define Iprint "print"

#define Iupdate_a "update_a"
#define Iupdate_b "update_b"
#define Iupdatepop_a "updatepop_a"
#define Iupdatepop_b "updatepop_b"
#define Iupdate_b "update_b"
#define Ipop_a "pop_a"
#define Ipop_b "pop_b"

#define Iget_node_arity "get_node_arity"
#define Iget_desc_arity "get_desc_arity"

#define Ipush_arg_b "push_arg_b"

#define Irtn "rtn"

#define Ijmp_eval "jmp_eval"
#define Ijmp_eval_upd "jmp_eval_upd"

#define Ihalt "halt"

#define Itestcaf "testcaf"
#define Ipushcaf "pushcaf"
#define Ifillcaf "fillcaf"

#define Iin "in"
#define Iout "out"

static void put_instruction (char *instruction)
{
	FPutC ('\n',OutFile);
	FPutC ('\t',OutFile);
	FPutS (instruction,OutFile);
}

static void put_instruction_ (char *instruction)
{
	FPutC ('\n',OutFile);
	FPutC ('\t',OutFile);
	FPutS (instruction,OutFile);
	FPutC (' ',OutFile);
}

static void put_instruction_code (int instruction_code)
{
	FPutC (instruction_code,OutFile);
}

#define Dkeep "keep"
#define Dd "d"
#define Do "o"
#define Dimpdesc "impdesc"
#define Dimplab "implab"
#define Dexport "export"
#define Dn "n"
#define Dnu "nu"
#define Dn_string "n_string"
#define Ddesc "desc"
#define Ddescn "descn"
#define Ddescexp "descexp"
#define Drecord "record"
#define Dmodule "module"
#define Ddepend "depend"
#define Dcomp "comp"
#define Dcode "code"
#define Dstart "start"
#define Dstring "string"
#define Dcaf "caf"
#define Dendinfo "endinfo"

#define Dpb "pb"
#define Dpd "pd"
#define Dpn "pn"
#define Dpl "pl"
#define Dpld "pld"
#define Dpt "pt"
#define Dpe "pe"

static void put_directive (char *directive)
{
	FPutC ('\n',OutFile);
	FPutC ('.',OutFile);
	FPutS (directive,OutFile);
}

static void put_directive_ (char *directive)
{
	FPutC ('\n',OutFile);
	FPutC ('.',OutFile);
	FPutS (directive,OutFile);
	FPutC (' ',OutFile);
}

static void put_first_directive_ (char *directive)
{
	FPutC ('.',OutFile);
	FPutS (directive,OutFile);
	FPutC (' ',OutFile);
}

void BuildBasicFromB (ObjectKind kind,int b_offset)
{
	switch (kind){
		case IntObj:
		case ProcIdObj:
		case RedIdObj:
			put_instruction_b (buildI_b); break;
		case BoolObj:
			put_instruction_b (buildB_b); break;
		case CharObj:
			put_instruction_b (buildC_b); break;
		case RealObj:
			put_instruction_b (buildR_b); break;
		case FileObj:
			put_instruction_b (buildF_b); break;
		default:
			error_in_function ("BuildBasicFromB");
			return;
	}

	put_arguments_n_b (b_offset);
}

void FillBasicFromB (ObjectKind kind, int boffs, int aoffs, FillKind fkind)
{
	TreatWaitListBeforeFill (aoffs, fkind);
	switch (kind){
		case IntObj:
		case ProcIdObj:			/* we assume proc_id and red_id	*/
		case RedIdObj:			/* to be integers				*/
			put_instruction_b (fillI_b); break;
		case BoolObj:
			put_instruction_b (fillB_b); break;
		case CharObj:
			put_instruction_b (fillC_b); break;
		case RealObj:
			put_instruction_b (fillR_b); break;
		case FileObj:
			put_instruction_b (fillF_b); break;
		default:
			error_in_function ("FillBasicFromB");
			return;
	}
	put_arguments_nn_b (boffs,aoffs);
	TreatWaitListAfterFill (aoffs, fkind);
}
	
void BuildBasic (ObjectKind obj,SymbValue val)
{
	switch (obj){
		case IntObj:
			put_instruction_b (buildI);
			put_arguments_i_b (val.val_int);
			break;
		case BoolObj:
			put_instruction_ (IbuildB);
			if (val.val_bool)
				FPrintF (OutFile, "TRUE");
			else
				FPrintF (OutFile, "FALSE");
			break;
		case CharObj:
			put_instruction_ (IbuildC);
			FPrintF (OutFile, "%s", val.val_char);
			break;
		case RealObj:
			put_instruction_ (IbuildR);
			FPrintF (OutFile, "%s", val.val_real);
			break;
		case StringObj:
			put_instruction_ (IbuildS);
			FPrintF (OutFile, "%s", val.val_string);
			break;
		default:
			error_in_function ("BuildBasic");
			return;
	}
}

void FillBasic (ObjectKind obj, SymbValue val, int offset, FillKind fkind)
{
	TreatWaitListBeforeFill (offset, fkind);
	switch (obj){
		case IntObj:
			put_instruction_b (fillI);
			put_arguments_in_b (val.val_int,offset);
			break;
		case BoolObj:
			put_instruction_ (IfillB);
			if (val.val_bool)
				FPrintF (OutFile, "TRUE %d", offset);
			else
				FPrintF (OutFile, "FALSE %d", offset);
			break;
		case CharObj:
			put_instruction_ (IfillC);
			FPrintF (OutFile, "%s %d", val.val_char, offset);
			break;
		case RealObj:
			put_instruction_ (IfillR);
			FPrintF (OutFile, "%s %d", val.val_real, offset);
			break;
		case StringObj:
			put_instruction_ (IfillS);
			FPrintF (OutFile, "%s %d", val.val_string, offset);
			break;
		default:
			error_in_function ("FillBasic");
			return;
	}
	TreatWaitListAfterFill (offset, fkind);
}

void IsBasic (ObjectKind obj, SymbValue val, int offset)
{
	switch (obj){
		case IntObj:
			put_instruction_b (eqI_a);
			put_arguments_in_b (val.val_int,offset);
			break;
		case BoolObj:
			put_instruction_ (IeqB_a);
			if (val.val_bool)
				FPrintF (OutFile, "TRUE %d", offset);
			else
				FPrintF (OutFile, "FALSE %d", offset);
			break;
		case CharObj:
			put_instruction_ (IeqC_a);
			FPrintF (OutFile, "%s %d", val.val_char, offset); break;
		case RealObj:
			put_instruction_ (IeqR_a);
			FPrintF (OutFile, "%s %d", val.val_real, offset); break;
		case StringObj:
			put_instruction_ (IeqS_a);
			FPrintF (OutFile, "%s %d", val.val_string, offset); break;
		default:
			error_in_function ("IsBasic");
			return;
	}
}

void IsString (SymbValue val)
{
	put_instruction_ (IeqAC_a);
	FPrintF (OutFile, "%s",val.val_string);
}

void PushBasic (ObjectKind obj, SymbValue val)
{
	switch (obj){
		case IntObj:
			put_instruction_b (pushI);
			put_arguments_i_b (val.val_int);
			break;
		case BoolObj:
			put_instruction_ (IpushB);
			if (val.val_bool)
				FPutS ("TRUE", OutFile);
			else
				FPutS ("FALSE", OutFile);
			break;
		case CharObj:
			put_instruction_ (IpushC);
			FPrintF (OutFile, "%s", val.val_char); break;
		case RealObj:
			put_instruction_ (IpushR);
			FPrintF (OutFile, "%s", val.val_real); break;
		default:
			error_in_function ("PushBasic");
			return;
	}
}

void GenPushReducerId (int i)
{
	put_instruction_b (pushI);
	put_arguments_n_b (i);
}

void GenPushArgNr (int argnr)
{
	put_instruction_b (pushI);
	put_arguments_n_b (argnr);
}

void EqBasic (ObjectKind obj, SymbValue val, int offset)
{
	switch (obj){
		case IntObj:
			put_instruction_b (eqI_b);
			put_arguments_in_b (val.val_int,offset);
			break;
		case BoolObj:
			put_instruction_ (IeqB_b);
			if (val.val_bool)
				FPrintF (OutFile, "TRUE %d", offset);
			else
				FPrintF (OutFile, "FALSE %d", offset);
			break;
		case CharObj:
			put_instruction_ (IeqC_b);
			FPrintF (OutFile, "%s %d", val.val_char, offset); break;
		case RealObj:
			put_instruction_ (IeqR_b);
			FPrintF (OutFile, "%s %d", val.val_real, offset); break;
		default:
			error_in_function ("EqBasic");
			return;
	}
}

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void GenNotB (void)
{
	put_instruction (InotB);
}

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void PushBasicFromAOnB (ObjectKind kind,int offset)
{
	switch (kind){
		case IntObj:
		case ProcIdObj:
		case RedIdObj:
			put_instruction_b (pushI_a);
			break;
		case BoolObj:
			put_instruction_b (pushB_a);
			break;
		case CharObj:
			put_instruction_b (pushC_a);
			break;
		case RealObj:
			put_instruction_b (pushR_a);
			break;
		case FileObj:
			put_instruction_b (pushF_a);
			break;
		default:
			error_in_function ("PushBasicFromAOnB");
			return;
	}
	put_arguments_n_b (offset);
}

void GenPushD_a (int a_offset)
{
	put_instruction_ (IpushD_a);
	FPrintF (OutFile,"%d",a_offset);
}
	
void PushBasicOnB (ObjectKind obj, int offset)
{
	int i;

	for (i = ObjectSizes[obj]; i > 0; i--)
		GenPushB (offset + ObjectSizes[obj] - 1);
}

void UpdateBasic (int size, int srcoffset, int dstoffset)
{
	if (srcoffset < dstoffset){
		int i;
		
		for (i=size-1; i >= 0; i--)
			GenUpdateB (srcoffset+i, dstoffset+i);
	} else if (srcoffset > dstoffset){
		int i;
		
		for (i=0; i < size; i++)
			GenUpdateB (srcoffset+i, dstoffset+i);
	}
}

static Bool IsDirective (Instructions instruction, char *directive)
{
	char *s;

	s=instruction->instr_this;
	while (isspace(*s))
		++s;
	if (*s!='.')
		return False;
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