X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=uebersetzerbau-ss10.git;a=blobdiff_plain;f=gesamt_arm%2Fparser.y;fp=gesamt_arm%2Fparser.y;h=e6fc7a5a2f772a03b17ff70c48cd92a71a50da3a;hp=0000000000000000000000000000000000000000;hb=67902869dbe033c80351a8e5d07bf55ed91b6c34;hpb=16705cf56da9f03c383319e63ffe3fe01613bd24

diff --git a/gesamt_arm/parser.y b/gesamt_arm/parser.y
new file mode 100644
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--- /dev/null
+++ b/gesamt_arm/parser.y
@@ -0,0 +1,624 @@
+%{
+	#include <stdio.h>
+	#include <stdlib.h>
+	#include <string.h>
+	#include "symtable.h"
+	#include "chelper.h"
+	#include "tree.h"
+
+	#define MAX(A,B) (A > B ? A : B)
+%}
+
+%start Input
+%token STRUCT END METHOD VAR IF THEN ELSE WHILE DO RETURN NOT OR THIS IDENT NUM ASSIGN
+
+@macro xxputsin(xx,)
+	@i xx = @Statement.sin@;
+@end
+
+@macro statinout()
+	@i @Statement.sout@ = @Statement.sin@;
+	/* das
+	 *> xxputsin(@Statement.sout@,)
+	 * geht nicht, weil verschachtelte macros deaktiviert sind */
+@end
+
+@macro lblcountinout()
+	@i @Statement.lblcnt_out@ = @Statement.lblcnt_in@;
+@end
+
+@macro varsinout()
+	@i @Statement.vars_out@ = @Statement.vars_in@;
+@end
+
+/* beschreibung der attribute
+ * s: symboltabelle
+ * f: symboltabelle fuer quirks mit structur und parameter
+ * gparamges: anzahl der parameter in einer methode
+ * parms: parametercounter
+ * node: baum fuer iburg
+ * sin: symboltabelle fuer statement ("eingabe")
+ * sout: symboltabelle die aus einem statement wieder rauskommt ("ausgabe")
+ */
+@autoinh s gparamges vars_in
+@autosyn node imm call
+
+@attributes { char *name; } IDENT
+@attributes { long val; } NUM
+@attributes { struct symbol *f; int paramges; int parms; } Parms
+@attributes { struct symbol *f; } Program Structdef;
+@attributes { struct symbol *f; int offsetcount; } FeldID
+@attributes { struct symbol *s; } Methoddef
+@attributes { struct symbol *s; int gparamges; int vars_in; int cnt; int paramcount; struct treenode *node; } Exprs
+@attributes { struct symbol *s; int gparamges; int lblcnt_in; int lblcnt_out; int vars_in; int vars_out; int call; } Statseq
+@attributes { struct symbol *s; int gparamges; int lblcnt_in; int lblcnt_out; int reallblcnt; int vars_in; int vars_out; int call; } Elsestat
+@attributes { struct symbol *s; int gparamges; int vars_in; struct treenode *node; short imm; int call; } Expr Minusterm Multerm Orterm Feld Term
+@attributes { struct symbol *s; int gparamges; int vars_in; struct treenode *node; } Lexpr
+@attributes { struct symbol *sin; int gparamges; struct symbol *sout; struct treenode *node; int vars_in; int vars_out; int lblcnt_in; int lblcnt_out; int call; } Statement
+
+@traversal @postorder c
+@traversal @preorder reg
+@traversal @preorder gen
+
+%%
+Input:
+	  Program
+	  @{
+	    @i @Program.f@ = tab_new();
+	    @gen printf("\t.section\t\".text\"\n");
+	  @}
+	;
+
+Program:
+	  Methoddef ';' Program
+	  @{
+	    @i @Methoddef.s@ = @Program.0.f@;
+	    @i @Program.1.f@ = @Program.0.f@;
+	  @}
+
+	| Structdef ';' Program
+	  @{
+	    @i @Program.1.f@ = tab_merge(@Program.0.f@, @Structdef.f@, 1);
+	  @}
+	|
+	;
+
+Methoddef:
+	  METHOD IDENT '(' Parms ')' Statseq END
+	  @{
+	    @i @Parms.parms@ = 1;
+	    @i @Statseq.s@ = tab_merge(@Methoddef.s@, @Parms.f@, 0);
+		@i @Statseq.vars_in@ = 0;
+		@i @Statseq.gparamges@ = @Parms.paramges@;
+		@i @Statseq.lblcnt_in@ = 0;
+	    @gen func_header(@IDENT.name@, @Statseq.vars_out@, @Parms.paramges@, @Statseq.call@);
+	  @}
+	;
+
+Structdef:
+	  STRUCT FeldID END
+	  @{
+	    @i @Structdef.f@ = @FeldID.f@;
+		@i @FeldID.offsetcount@ = 0;
+	  @}
+	;
+
+Parms:
+	  /* lokale Vars werden in Statement in die tabelle eingefuegt */
+	  IDENT Parms
+	  @{
+	    @i @Parms.1.parms@ = @Parms.0.parms@ + 1;
+		@i @Parms.0.paramges@ = @Parms.1.paramges@;
+	    @i @Parms.0.f@ = tab_add_symbol(@Parms.1.f@, @IDENT.name@, S_PARM, 1, @Parms.parms@, -1);
+	  @}
+
+	|
+	  @{
+	    @i @Parms.f@ = tab_new();
+		@i @Parms.paramges@ = @Parms.parms@;
+	  @}
+	;
+
+FeldID:
+	  IDENT FeldID
+	  @{
+	    @i @FeldID.1.offsetcount@ = @FeldID.0.offsetcount@ + 1;
+	    @i @FeldID.0.f@ = tab_add_symbol(@FeldID.1.f@, @IDENT.name@, S_FIELD, 1, -1, @FeldID.0.offsetcount@);
+	  @}
+
+	|
+	  @{
+	    @i @FeldID.f@ = tab_new();
+	  @}
+	;
+
+Statseq:
+	  Statement ';' Statseq
+	  @{
+		@i @Statement.sin@ = @Statseq.0.s@;
+		@i @Statement.lblcnt_in@ = @Statseq.0.lblcnt_in@;
+
+		@i @Statseq.1.s@ = @Statement.sout@;
+		@i @Statseq.1.lblcnt_in@ = @Statement.lblcnt_out@;
+		@i @Statseq.1.gparamges@ = @Statseq.0.gparamges@;
+
+		@i @Statement.vars_in@ = @Statseq.0.vars_in@;
+		@i @Statseq.1.vars_in@ = @Statement.vars_out@;
+
+		@i @Statseq.0.lblcnt_out@ = @Statseq.1.lblcnt_out@;
+		@i @Statseq.0.vars_out@ = @Statseq.1.vars_out@;
+
+		@i @Statseq.0.call@ = @Statement.call@ || @Statseq.1.call@;
+	  @}
+
+	|
+	  @{
+	  	@i @Statseq.0.lblcnt_out@ = @Statseq.0.lblcnt_in@;
+		@i @Statseq.0.vars_out@ = @Statseq.0.vars_in@;
+		@i @Statseq.0.call@ = 0;
+	  @}
+	;
+
+Statement:
+	  Lexpr ASSIGN Expr
+	  @{
+	  	statinout()
+		lblcountinout()
+		varsinout()
+		xxputsin(@Lexpr.s@,)
+		xxputsin(@Expr.s@,)
+	    @i @Statement.node@ = new_node(O_ASSIGN, @Expr.node@, @Lexpr.node@);
+		@reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+		@reg @Lexpr.node@->reg = next_reg(@Expr.node@->reg, @Expr.gparamges@);
+
+		@gen write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
+	  @}
+
+	| VAR IDENT ASSIGN Expr
+	  @{
+	  	/* tab_clone ist hier noetig, vgl. folgendes statement
+		 * > var x := x - 1; */
+		@i @Statement.sout@ = tab_add_symbol(tab_clone(@Statement.sin@), @IDENT.name@, S_VAR, 1, @Statement.gparamges@ + @Statement.vars_in@, -1);
+		lblcountinout()
+
+		@i @Statement.vars_out@ = @Statement.vars_in@ + 1;
+
+		xxputsin(@Expr.s@,)
+
+		@i @Statement.node@ = new_node(O_ASSIGN, @Expr.node@, new_param(O_ID, @IDENT.name@, TREENULL, TREENULL, @Statement.gparamges@ + @Statement.vars_in@));
+		@reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+
+		@gen write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
+	  @}
+
+	| Expr
+	  @{
+	  	statinout()
+		varsinout()
+		lblcountinout()
+		xxputsin(@Expr.s@,)
+		@i @Statement.node@ = new_node(O_EXPR, @Expr.node@, TREENULL);
+		@reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+
+		@gen write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
+	  @}
+
+	| IF Expr THEN Statseq END
+	  @{
+	  	statinout()
+		@i @Statseq.lblcnt_in@ =  @Statement.lblcnt_in@ + 1;
+		@i @Statement.lblcnt_out@ = @Statseq.lblcnt_out@;
+
+		@i @Statseq.vars_in@ = @Statement.vars_in@;
+		@i @Statement.vars_out@ = @Statseq.vars_out@;
+
+		@i @Statement.call@ = @Expr.call@ || @Statseq.call@;
+
+		xxputsin(@Expr.s@,)
+		xxputsin(@Statseq.s@,)
+
+		@i @Statement.node@ = new_node(O_IF, @Expr.node@, TREENULL);
+
+		@reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+		@gen {
+			printf(".%s_ifstart_%d:\n", get_func_name(), @Statement.lblcnt_in@);
+			write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
+			printf("\tbeq 0,.%s_ifend_%d\n", get_func_name(), @Statement.lblcnt_in@);
+		}
+		@gen @revorder(1) printf(".%s_ifend_%d:\n", get_func_name(), @Statement.lblcnt_in@);
+	  @}
+
+	| IF Expr THEN Statseq Elsestat END
+	  @{
+	  	statinout()
+		@i @Statseq.0.lblcnt_in@ = @Statement.lblcnt_in@ + 1;
+		@i @Elsestat.lblcnt_in@ = @Statseq.lblcnt_out@;
+		@i @Statement.lblcnt_out@ = @Elsestat.lblcnt_out@;
+
+		/* im Elsestat muss noch ein label numeriert werden */
+		@i @Elsestat.reallblcnt@ = @Statement.lblcnt_in@;
+
+		@i @Statseq.vars_in@ = @Statement.vars_in@;
+		@i @Elsestat.vars_in@ = @Statement.vars_in@;
+		@i @Statement.vars_out@ = MAX(@Statseq.vars_out@, @Elsestat.vars_out@);
+
+		@i @Statement.call@ = @Expr.call@ || @Statseq.call@ || @Elsestat.call@;
+
+		xxputsin(@Expr.s@,)
+		xxputsin(@Statseq.0.s@,)
+		xxputsin(@Elsestat.s@,)
+
+		@i @Statement.node@ = new_node(O_IF, @Expr.node@, TREENULL);
+
+		@reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+		@gen {
+			printf(".%s_ifstart_%d:\n", get_func_name(), @Statement.lblcnt_in@);
+			write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
+			printf("\tbeq 0,.%s_ifelse_%d\n", get_func_name(), @Statement.lblcnt_in@);
+		}
+		@gen @revorder(1) printf(".%s_ifend_%d:\n", get_func_name(), @Statement.lblcnt_in@);
+	  @}
+
+	| WHILE Expr DO Statseq END
+	  @{
+	  	statinout()
+		@i @Statseq.lblcnt_in@ =  @Statement.lblcnt_in@ + 1;
+		@i @Statement.lblcnt_out@ = @Statseq.lblcnt_out@;
+
+		@i @Statseq.vars_in@ = @Statement.vars_in@;
+		@i @Statement.vars_out@ = @Statseq.vars_out@;
+
+		@i @Statement.call@ = @Expr.call@ || @Statseq.call@;
+
+		xxputsin(@Expr.s@,)
+		xxputsin(@Statseq.s@,)
+
+		@i @Statement.node@ = new_node(O_IF, @Expr.node@, TREENULL);
+
+		@reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+		@gen {
+			printf(".%s_whilestart_%d:\n", get_func_name(), @Statement.lblcnt_in@);
+			write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1);
+			printf("\tbeq 0,.%s_whileend_%d\n", get_func_name(), @Statement.lblcnt_in@);
+		}
+		@gen @revorder(1) printf("\tb .%s_whilestart_%d\n.%s_whileend_%d:\n", get_func_name(), @Statement.lblcnt_in@, get_func_name(), @Statement.lblcnt_in@);
+	  @}
+
+	| RETURN Expr
+	  @{
+	  	statinout()
+		lblcountinout()
+		varsinout()
+		xxputsin(@Expr.s@,)
+
+		@i @Statement.node@ = new_node(O_RET, @Expr.node@, TREENULL);
+		@reg @Statement.node@->reg = @Expr.node@->reg = next_reg((char *)NULL, @Expr.gparamges@);
+
+		@gen write_tree(@Statement.node@, 0); burm_label(@Statement.node@); burm_reduce(@Statement.node@, 1); func_footer();
+	  @}
+	;
+
+Elsestat:
+	  ELSE Statseq
+	  @{
+		@i @Statseq.lblcnt_in@ =  @Elsestat.lblcnt_in@;
+		@i @Elsestat.lblcnt_out@ =  @Statseq.lblcnt_out@;
+
+		@i @Statseq.vars_in@ = @Elsestat.vars_in@;
+		@i @Elsestat.vars_out@ = @Statseq.vars_out@;
+
+		@gen printf("\tb .%s_ifend_%d\n.%s_ifelse_%d:\n", get_func_name(), @Elsestat.reallblcnt@, get_func_name(), @Elsestat.reallblcnt@);
+	  @}
+
+Lexpr:
+	  IDENT
+	  @{
+	    @c check(@Lexpr.s@, @IDENT.name@, S_VAR|S_PARM);
+
+		/* TODO: selbe Code wie bei Term/IDENT -- schoener machen! */
+	    @i {
+			@Lexpr.node@ = TREENULL;
+			if(tab_lookup(@Lexpr.s@, @IDENT.name@, S_VAR|S_PARM) == SYMNULL) {
+				/* es handelt sich um ein feldzugriff auf this */
+				@Lexpr.node@ = new_field(@IDENT.name@, new_param(O_ID, strdup("this"), TREENULL, TREENULL, 0), TREENULL, tab_lookup(@Lexpr.s@, @IDENT.name@, S_FIELD) == SYMNULL ? -1 : tab_lookup(@Lexpr.s@, @IDENT.name@, S_FIELD)->soffset);
+			} else { /* param oder var */
+				int tmp = tab_lookup(@Lexpr.s@, @IDENT.name@, S_VAR|S_PARM) == SYMNULL ? -1 : tab_lookup(@Lexpr.s@, @IDENT.name@, S_VAR|S_PARM)->param_index;
+				@Lexpr.node@ = new_param(O_ID, @IDENT.name@, TREENULL, TREENULL, tmp);
+			}
+		}
+
+		@reg if(tab_lookup(@Lexpr.s@, @IDENT.name@, S_VAR|S_PARM) == SYMNULL) {
+			/* TODO: kein schoener hack? */
+			@Lexpr.node@->kids[0]->reg = @Lexpr.node@->reg;
+		}
+	  @}
+
+	| Feld
+	;
+
+Feld: Term '.' IDENT
+	  @{
+	    @c check(@Feld.s@, @IDENT.name@, S_FIELD);
+	    @i @Feld.node@ = new_field(@IDENT.name@, @Term.node@, TREENULL, tab_lookup(@Feld.s@, @IDENT.name@, S_FIELD) == SYMNULL ? -1 : tab_lookup(@Feld.s@, @IDENT.name@, S_FIELD)->soffset);
+
+		@reg @Term.node@->reg = next_reg(@Feld.node@->reg, @Term.gparamges@);
+	  @}
+	;
+
+Expr:
+	  Term
+	  @{
+	    @reg @Term.node@->reg = @Expr.node@->reg;
+	  @}
+
+	| NOT Term
+	  @{
+		@i @Expr.node@ = new_node(O_BOOL, new_node(O_EQ, @Term.node@, new_node(O_NULL, TREENULL, TREENULL)), TREENULL);
+
+		@reg @Term.node@->reg = @Expr.node@->kids[0]->reg = @Expr.node@->reg;
+	  @}
+
+	| Term Minusterm
+	  @{
+	    @i @Expr.node@ = new_node(O_SUB, @Term.node@, @Minusterm.node@);
+		@i @Expr.imm@ = @Term.imm@ && @Minusterm.imm@;
+		@i @Expr.call@ = @Term.call@ || @Minusterm.call@;
+
+		@reg {
+			if(!(@Expr.node@->kids[0] == TREENULL && @Expr.node@->kids[1] == TREENULL)) {
+				@Term.node@->reg = @Expr.node@->reg;
+				if(@Minusterm.imm@) {
+					@Minusterm.node@->reg = @Expr.node@->reg;
+				} else {
+					@Minusterm.node@->reg = next_reg(@Term.node@->reg, @Expr.gparamges@);
+				}
+			}
+		}
+	  @}
+
+	| Term Multerm
+	  @{
+	    @i @Expr.node@ = new_node(O_MUL, @Term.node@, @Multerm.node@);
+		@i @Expr.imm@ = @Term.imm@ && @Multerm.imm@;
+		@i @Expr.call@ = @Term.call@ || @Multerm.call@;
+
+		@reg {
+			@Term.node@->reg = @Expr.node@->reg;
+			if(@Term.imm@) {
+				@Multerm.node@->reg = @Expr.node@->reg;
+			} else {
+				@Multerm.node@->reg = next_reg(@Term.node@->reg, @Expr.gparamges@);
+			}
+		}
+	  @}
+
+	| Term Orterm
+	  @{
+	    @i @Expr.node@ = new_node(O_OR, @Term.node@, @Orterm.node@);
+		@i @Expr.imm@ = @Term.imm@ && @Orterm.imm@;
+		@i @Expr.call@ = @Term.call@ || @Orterm.call@;
+
+		@reg {
+			@Term.node@->reg = @Expr.node@->reg;
+			@Orterm.node@->reg = next_reg(@Term.node@->reg, @Expr.gparamges@);
+		}
+	  @}
+
+	| Term '<' Term
+	  @{
+	    @i @Expr.node@ = new_node(O_BOOL, new_node(O_LESS, @Term.0.node@, @Term.1.node@), TREENULL);
+		@i @Expr.imm@ = @Term.0.imm@ && @Term.1.imm@;
+		@i @Expr.call@ = @Term.0.call@ || @Term.1.call@;
+
+		@reg {
+			@Term.0.node@->reg = @Expr.node@->kids[0]->reg = @Expr.node@->reg;
+			@Term.1.node@->reg = next_reg(@Term.0.node@->reg, @Expr.gparamges@);
+		}
+	  @}
+
+	| Term '=' Term
+	  @{
+	    @i @Expr.node@ = new_node(O_BOOL, new_node(O_EQ, @Term.0.node@, @Term.1.node@), TREENULL);
+		@i @Expr.imm@ = @Term.0.imm@ && @Term.1.imm@;
+		@i @Expr.call@ = @Term.0.call@ || @Term.1.call@;
+
+		@reg {
+			@Term.0.node@->reg = @Expr.node@->kids[0]->reg = @Expr.node@->reg;
+			@Term.1.node@->reg = next_reg(@Term.0.node@->reg, @Expr.gparamges@);
+		}
+	  @}
+	;
+
+Minusterm:
+	  '-' Term Minusterm
+	  @{
+	    @i @Minusterm.node@ = new_node(O_ADD, @Minusterm.1.node@, @Term.node@);
+		@i @Minusterm.0.imm@ = @Term.imm@ && @Minusterm.1.imm@;
+		@i @Minusterm.0.call@ = @Term.call@ || @Minusterm.1.call@;
+
+	    @reg {
+			@Minusterm.1.node@->reg = @Minusterm.node@->reg;
+			if(@Minusterm.1.imm@) {
+				@Term.node@->reg = @Minusterm.node@->reg;
+			} else {
+				@Term.node@->reg = next_reg(@Minusterm.1.node@->reg, @Minusterm.gparamges@);
+			}
+		}
+	  @}
+
+	| '-' Term
+	  @{
+	    @reg @Term.node@->reg = @Minusterm.node@->reg;
+	  @}
+	;
+
+Multerm:
+	  '*' Term Multerm
+	  @{
+	    @i @Multerm.node@ = new_node(O_MUL, @Multerm.1.node@, @Term.node@);
+		@i @Multerm.0.imm@ = @Term.imm@ && @Multerm.1.imm@;
+		@i @Multerm.0.call@ = @Term.call@ || @Multerm.1.call@;
+
+	    @reg {
+			@Multerm.1.node@->reg = @Multerm.node@->reg;
+			if(@Multerm.1.imm@) {
+				@Term.node@->reg = @Multerm.node@->reg;
+			} else {
+				@Term.node@->reg = next_reg(@Multerm.1.node@->reg, @Multerm.gparamges@);
+			}
+		}
+	  @}
+
+	| '*' Term
+	  @{
+	    @reg @Term.node@->reg = @Multerm.node@->reg;
+	  @}
+	;
+
+Orterm:
+	  OR Term Orterm
+	  @{
+	    @i @Orterm.node@ = new_node(O_OR, @Orterm.1.node@, @Term.node@);
+		@i @Orterm.0.imm@ = @Term.imm@ && @Orterm.1.imm@;
+		@i @Orterm.0.call@ = @Term.call@ || @Orterm.1.call@;
+
+	    @reg {
+			@Orterm.1.node@->reg = @Orterm.node@->reg;
+			if(@Orterm.1.imm@) {
+				@Term.node@->reg = @Orterm.node@->reg;
+			} else {
+				@Term.node@->reg = next_reg(@Orterm.1.node@->reg, @Orterm.gparamges@);
+			}
+		}
+	  @}
+	| OR Term
+	  @{
+	    @reg @Term.node@->reg = @Orterm.node@->reg;
+	  @}
+
+	;
+
+Term:
+	  '(' Expr ')'
+	  @{
+	    @i @Term.node@ = @Expr.node@;
+	  @}
+
+	| NUM
+	  @{
+	    @i @Term.node@ = new_number(@NUM.val@);
+		@i @Term.imm@ = 1;
+		@i @Term.call@ = 0;
+	  @}
+
+	| '-' NUM
+	  @{
+	    @i @Term.node@ = new_number(-1 * (@NUM.val@));
+		@i @Term.imm@ = 1;
+		@i @Term.call@ = 0;
+	  @}
+
+	| THIS
+	  @{
+	    @i @Term.node@ = new_param(O_ID, strdup("this"), TREENULL, TREENULL, 0);
+		@i @Term.imm@ = 0;
+		@i @Term.call@ = 0;
+	  @}
+
+	| IDENT
+	  @{
+	    @c check(@Term.s@, @IDENT.name@, S_VAR|S_PARM);
+
+		@i @Term.imm@ = 0;
+		@i @Term.call@ = 0;
+	    @i {
+			@Term.node@ = TREENULL;
+			if(tab_lookup(@Term.s@, @IDENT.name@, S_VAR|S_PARM) == SYMNULL) {
+				/* es handelt sich um ein feldzugriff auf this */
+				@Term.node@ = new_field(@IDENT.name@, new_param(O_ID, strdup("this"), TREENULL, TREENULL, 0), TREENULL, tab_lookup(@Term.s@, @IDENT.name@, S_FIELD) == SYMNULL ? -1 : tab_lookup(@Term.s@, @IDENT.name@, S_FIELD)->soffset);
+			} else { /* param oder var */
+				int tmp = tab_lookup(@Term.s@, @IDENT.name@, S_VAR|S_PARM) == SYMNULL ? -1 : tab_lookup(@Term.s@, @IDENT.name@, S_VAR|S_PARM)->param_index;
+				@Term.node@ = new_param(O_ID, @IDENT.name@, TREENULL, TREENULL, tmp);
+			}
+		}
+
+		@reg if(tab_lookup(@Term.s@, @IDENT.name@, S_VAR|S_PARM) == SYMNULL) {
+			/* TODO: kein schoener hack? */
+			@Term.node@->kids[0]->reg = @Term.node@->reg;
+		}
+	  @}
+
+	| Feld
+	  @{
+	    @i @Term.node@ = @Feld.node@;
+		@i @Term.imm@ = 0;
+	  @}
+
+	| IDENT '(' Exprs ')'
+	  @{
+	    @i {
+			@Term.node@ = new_call(@IDENT.name@, new_arg(@Exprs.node@, new_nothing(), 0) /*this*/,
+					TREENULL, @Term.gparamges@, @Term.vars_in@);
+			@Term.node@->soffset = MAX(@Exprs.paramcount@, @Term.gparamges@);
+		}
+		@i @Exprs.cnt@ = 1;
+		@i @Term.imm@ = 0;
+		@i @Term.call@ = 1;
+		@reg @Exprs.node@->reg = @Term.node@->reg;
+	  @}
+
+	| Term '.' IDENT '(' Exprs ')'
+	  @{
+	    @i {
+			@Term.node@ = new_call(@IDENT.name@, new_arg(@Exprs.node@, @Term.1.node@, 0) /*this*/,
+					TREENULL, @Term.gparamges@, @Term.vars_in@);
+			@Term.node@->soffset = MAX(@Exprs.paramcount@, @Term.gparamges@);
+		}
+		@i @Exprs.cnt@ = 1;
+		@i @Term.imm@ = 0;
+		@i @Term.call@ = 1;
+		@reg @Exprs.node@->reg = @Term.1.node@->reg = @Term.node@->kids[0]->reg = @Term.node@->reg;
+	  @}
+
+	;
+
+Exprs:
+	  Expr ',' Exprs
+	  @{
+		@i @Exprs.0.node@ = new_arg(@Expr.0.node@, @Exprs.1.node@, @Exprs.0.cnt@);
+		@i @Exprs.0.paramcount@ = @Exprs.1.paramcount@;
+		@i @Exprs.1.cnt@ = @Exprs.0.cnt@ + 1;
+		@reg @Expr.node@->reg = @Exprs.0.node@->reg; @Exprs.1.node@->reg = next_reg(@Exprs.0.node@->reg, @Exprs.gparamges@);
+	  @}
+	| Expr
+	  @{
+		@i @Exprs.0.node@ = new_arg(@Expr.0.node@, new_nothing(), @Exprs.cnt@);
+		@i @Exprs.paramcount@ = @Exprs.cnt@ + 1;
+		@reg @Expr.node@->reg = @Exprs.0.node@->reg;
+	  @}
+	|
+	  @{
+		@i @Exprs.0.node@ = new_nothing();
+		@i @Exprs.paramcount@ = @Exprs.cnt@;
+	  @}
+	;
+%%
+
+extern int yylex();
+extern int yylineno;
+
+int yyerror(char *error_text)
+{
+	fprintf(stderr,"Zeile %i: %s\n", yylineno, error_text);
+	exit(2);
+}
+
+int main(int argc, char **argv)
+{
+	#if 0
+	yydebug=1;
+	#endif
+	yyparse();
+	return 0;
+}
+