* Moved lcc and q3asm into code/tools
This commit is contained in:
Tim Angus
parent
b1cef6352e
commit
ad118b9baf
452 changed files with 0 additions and 0 deletions
591
code/tools/lcc/tst/yacc.c
Normal file
591
code/tools/lcc/tst/yacc.c
Normal file
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@ -0,0 +1,591 @@
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# define ID 257
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# define CON 258
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# define UNARYMINUS 259
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#define yyclearin yychar = -1
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#define yyerrok yyerrflag = 0
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extern int yychar;
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extern short yyerrflag;
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#ifndef YYMAXDEPTH
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#define YYMAXDEPTH 150
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#endif
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#ifndef YYSTYPE
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#define YYSTYPE int
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#endif
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YYSTYPE yylval, yyval;
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# define YYERRCODE 256
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#include <stdio.h>
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# define U(x) x
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# define NLSTATE yyprevious=YYNEWLINE
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# define BEGIN yybgin = yysvec + 1 +
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# define INITIAL 0
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# define YYLERR yysvec
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# define YYSTATE (yyestate-yysvec-1)
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# define YYOPTIM 1
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# define YYLMAX 200
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# define output(c) (void)putc(c,yyout)
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# define input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getc(yyin))==10?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)
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# define unput(c) {yytchar= (c);if(yytchar=='\n')yylineno--;*yysptr++=yytchar;}
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# define yymore() (yymorfg=1)
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# define ECHO fprintf(yyout, "%s",yytext)
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# define REJECT { nstr = yyreject(); goto yyfussy;}
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int yyleng; extern char yytext[];
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int yymorfg;
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extern char *yysptr, yysbuf[];
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int yytchar;
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FILE *yyin ={stdin}, *yyout ={stdout};
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extern int yylineno;
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struct yysvf {
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struct yywork *yystoff;
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struct yysvf *yyother;
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int *yystops;};
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struct yysvf *yyestate;
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extern struct yysvf yysvec[], *yybgin;
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# define YYNEWLINE 10
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yylex(){
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int nstr; extern int yyprevious;
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while((nstr = yylook()) >= 0)
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yyfussy: switch(nstr){
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case 0:
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if(yywrap()) return(0); break;
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case 1:
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return ID;
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break;
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case 2:
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return CON;
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break;
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case 3:
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;
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break;
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case 4:
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return yytext[0];
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break;
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case -1:
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break;
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default:
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fprintf(yyout,"bad switch yylook %d",nstr);
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} return(0); }
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/* end of yylex */
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int yyvstop[] ={
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0,
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4,
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0,
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3,
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4,
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0,
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2,
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4,
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0,
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1,
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4,
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0,
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2,
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0,
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1,
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0,
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0};
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# define YYTYPE char
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struct yywork { YYTYPE verify, advance; } yycrank[] ={
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0,0, 0,0, 1,3, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 1,4, 1,3,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 1,5, 5,7, 5,7,
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5,7, 5,7, 5,7, 5,7,
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5,7, 5,7, 5,7, 5,7,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 1,6, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 0,0,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 0,0, 0,0,
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0,0, 0,0, 6,8, 0,0,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 6,8, 6,8,
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6,8, 6,8, 0,0, 0,0,
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0,0};
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struct yysvf yysvec[] ={
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0, 0, 0,
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yycrank+-1, 0, 0,
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yycrank+0, yysvec+1, 0,
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yycrank+0, 0, yyvstop+1,
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yycrank+0, 0, yyvstop+3,
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yycrank+2, 0, yyvstop+6,
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yycrank+19, 0, yyvstop+9,
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yycrank+0, yysvec+5, yyvstop+12,
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yycrank+0, yysvec+6, yyvstop+14,
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0, 0, 0};
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struct yywork *yytop = yycrank+141;
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struct yysvf *yybgin = yysvec+1;
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char yymatch[] ={
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00 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
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01 ,011 ,012 ,01 ,01 ,01 ,01 ,01 ,
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01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
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01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
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011 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
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01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
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'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,
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'0' ,'0' ,01 ,01 ,01 ,01 ,01 ,01 ,
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01 ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
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'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
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'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
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'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,'A' ,
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01 ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
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'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
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'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
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'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,01 ,
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0};
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char yyextra[] ={
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0,0,0,0,0,0,0,0,
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0};
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/* ncform 4.1 83/08/11 */
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int yylineno =1;
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# define YYU(x) x
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# define NLSTATE yyprevious=YYNEWLINE
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char yytext[YYLMAX];
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struct yysvf *yylstate [YYLMAX], **yylsp, **yyolsp;
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char yysbuf[YYLMAX];
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char *yysptr = yysbuf;
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int *yyfnd;
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extern struct yysvf *yyestate;
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int yyprevious = YYNEWLINE;
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yylook(){
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register struct yysvf *yystate, **lsp;
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register struct yywork *yyt;
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struct yysvf *yyz;
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int yych;
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struct yywork *yyr;
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# ifdef LEXDEBUG
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int debug;
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# endif
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char *yylastch;
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/* start off machines */
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# ifdef LEXDEBUG
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debug = 0;
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# endif
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if (!yymorfg)
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yylastch = yytext;
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else {
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yymorfg=0;
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yylastch = yytext+yyleng;
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}
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for(;;){
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lsp = yylstate;
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yyestate = yystate = yybgin;
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if (yyprevious==YYNEWLINE) yystate++;
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for (;;){
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# ifdef LEXDEBUG
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if(debug)fprintf(yyout,"state %d\n",yystate-yysvec-1);
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# endif
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yyt = yystate->yystoff;
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if(yyt == yycrank){ /* may not be any transitions */
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yyz = yystate->yyother;
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if(yyz == 0)break;
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if(yyz->yystoff == yycrank)break;
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}
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*yylastch++ = yych = input();
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tryagain:
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# ifdef LEXDEBUG
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if(debug){
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fprintf(yyout,"char ");
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allprint(yych);
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putchar('\n');
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}
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# endif
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yyr = yyt;
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if ( yyt > yycrank){
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yyt = yyr + yych;
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if (yyt <= yytop && yyt->verify+yysvec == yystate){
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if(yyt->advance+yysvec == YYLERR) /* error transitions */
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{unput(*--yylastch);break;}
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*lsp++ = yystate = yyt->advance+yysvec;
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goto contin;
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}
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}
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# ifdef YYOPTIM
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else if(yyt < yycrank) { /* r < yycrank */
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yyt = yyr = yycrank+(yycrank-yyt);
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# ifdef LEXDEBUG
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if(debug)fprintf(yyout,"compressed state\n");
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# endif
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yyt = yyt + yych;
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if(yyt <= yytop && yyt->verify+yysvec == yystate){
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if(yyt->advance+yysvec == YYLERR) /* error transitions */
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{unput(*--yylastch);break;}
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*lsp++ = yystate = yyt->advance+yysvec;
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goto contin;
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}
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yyt = yyr + YYU(yymatch[yych]);
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# ifdef LEXDEBUG
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if(debug){
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fprintf(yyout,"try fall back character ");
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allprint(YYU(yymatch[yych]));
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putchar('\n');
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}
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# endif
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if(yyt <= yytop && yyt->verify+yysvec == yystate){
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if(yyt->advance+yysvec == YYLERR) /* error transition */
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{unput(*--yylastch);break;}
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*lsp++ = yystate = yyt->advance+yysvec;
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goto contin;
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}
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}
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if ((yystate = yystate->yyother) && (yyt= yystate->yystoff) != yycrank){
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# ifdef LEXDEBUG
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if(debug)fprintf(yyout,"fall back to state %d\n",yystate-yysvec-1);
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# endif
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goto tryagain;
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}
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# endif
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else
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{unput(*--yylastch);break;}
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contin:
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# ifdef LEXDEBUG
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if(debug){
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fprintf(yyout,"state %d char ",yystate-yysvec-1);
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allprint(yych);
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putchar('\n');
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}
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# endif
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;
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}
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# ifdef LEXDEBUG
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if(debug){
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fprintf(yyout,"stopped at %d with ",*(lsp-1)-yysvec-1);
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allprint(yych);
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putchar('\n');
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}
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# endif
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while (lsp-- > yylstate){
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*yylastch-- = 0;
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if (*lsp != 0 && (yyfnd= (*lsp)->yystops) && *yyfnd > 0){
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yyolsp = lsp;
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if(yyextra[*yyfnd]){ /* must backup */
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while(yyback((*lsp)->yystops,-*yyfnd) != 1 && lsp > yylstate){
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lsp--;
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unput(*yylastch--);
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}
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}
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yyprevious = YYU(*yylastch);
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yylsp = lsp;
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yyleng = yylastch-yytext+1;
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yytext[yyleng] = 0;
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# ifdef LEXDEBUG
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if(debug){
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fprintf(yyout,"\nmatch ");
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sprint(yytext);
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fprintf(yyout," action %d\n",*yyfnd);
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}
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# endif
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return(*yyfnd++);
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}
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unput(*yylastch);
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}
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if (yytext[0] == 0 /* && feof(yyin) */)
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{
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yysptr=yysbuf;
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return(0);
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}
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yyprevious = yytext[0] = input();
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if (yyprevious>0)
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output(yyprevious);
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yylastch=yytext;
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# ifdef LEXDEBUG
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if(debug)putchar('\n');
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# endif
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}
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}
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yyback(p, m)
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int *p;
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{
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if (p==0) return(0);
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while (*p)
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{
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if (*p++ == m)
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return(1);
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}
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return(0);
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}
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/* the following are only used in the lex library */
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yyinput(){
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return(input());
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}
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yyoutput(c)
|
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int c; {
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output(c);
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}
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yyunput(c)
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int c; {
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unput(c);
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}
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main() {
|
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yyparse();
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return 0;
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}
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/* yyerror - issue error message */
|
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yyerror(s) char *s; {
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printf("%s\n", s);
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}
|
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short yyexca[] ={
|
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-1, 1,
|
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0, -1,
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-2, 0,
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};
|
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# define YYNPROD 15
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# define YYLAST 249
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short yyact[]={
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12, 2, 9, 8, 17, 11, 25, 17, 15, 18,
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16, 10, 18, 17, 15, 7, 16, 13, 18, 5,
|
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3, 1, 0, 19, 20, 0, 0, 21, 22, 23,
|
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24, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 6, 14, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
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0, 0, 0, 0, 0, 0, 0, 4, 6 };
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short yypact[]={
|
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|
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-1000, -9,-1000, 5, -7, -59,-1000,-1000,-1000, -40,
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-29, -40, -40,-1000,-1000, -40, -40, -40, -40, -38,
|
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-35, -38, -38,-1000,-1000,-1000 };
|
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short yypgo[]={
|
||||
|
||||
0, 21, 20, 17, 11 };
|
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short yyr1[]={
|
||||
|
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0, 1, 1, 1, 1, 2, 4, 4, 4, 4,
|
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4, 4, 4, 4, 3 };
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short yyr2[]={
|
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|
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0, 0, 2, 3, 3, 3, 3, 3, 3, 3,
|
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2, 3, 1, 1, 1 };
|
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short yychk[]={
|
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|
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-1000, -1, 10, -2, 256, -3, 257, 10, 10, 61,
|
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-4, 45, 40, -3, 258, 43, 45, 42, 47, -4,
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-4, -4, -4, -4, -4, 41 };
|
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short yydef[]={
|
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|
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1, -2, 2, 0, 0, 0, 14, 3, 4, 0,
|
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5, 0, 0, 12, 13, 0, 0, 0, 0, 10,
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0, 6, 7, 8, 9, 11 };
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#ifndef lint
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#endif
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# define YYFLAG -1000
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# define YYERROR goto yyerrlab
|
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# define YYACCEPT return(0)
|
||||
# define YYABORT return(1)
|
||||
|
||||
/* parser for yacc output */
|
||||
|
||||
#ifdef YYDEBUG
|
||||
int yydebug = 0; /* 1 for debugging */
|
||||
#endif
|
||||
YYSTYPE yyv[YYMAXDEPTH]; /* where the values are stored */
|
||||
int yychar = -1; /* current input token number */
|
||||
int yynerrs = 0; /* number of errors */
|
||||
short yyerrflag = 0; /* error recovery flag */
|
||||
|
||||
yyparse() {
|
||||
|
||||
short yys[YYMAXDEPTH];
|
||||
short yyj, yym;
|
||||
register YYSTYPE *yypvt;
|
||||
register short yystate, *yyps, yyn;
|
||||
register YYSTYPE *yypv;
|
||||
register short *yyxi;
|
||||
|
||||
yystate = 0;
|
||||
yychar = -1;
|
||||
yynerrs = 0;
|
||||
yyerrflag = 0;
|
||||
yyps= &yys[-1];
|
||||
yypv= &yyv[-1];
|
||||
|
||||
yystack: /* put a state and value onto the stack */
|
||||
|
||||
#ifdef YYDEBUG
|
||||
if( yydebug ) printf( "state %d, char 0%o\n", yystate, yychar );
|
||||
#endif
|
||||
if( ++yyps> &yys[YYMAXDEPTH] ) { yyerror( "yacc stack overflow" ); return(1); }
|
||||
*yyps = yystate;
|
||||
++yypv;
|
||||
*yypv = yyval;
|
||||
|
||||
yynewstate:
|
||||
|
||||
yyn = yypact[yystate];
|
||||
|
||||
if( yyn<= YYFLAG ) goto yydefault; /* simple state */
|
||||
|
||||
if( yychar<0 ) if( (yychar=yylex())<0 ) yychar=0;
|
||||
if( (yyn += yychar)<0 || yyn >= YYLAST ) goto yydefault;
|
||||
|
||||
if( yychk[ yyn=yyact[ yyn ] ] == yychar ){ /* valid shift */
|
||||
yychar = -1;
|
||||
yyval = yylval;
|
||||
yystate = yyn;
|
||||
if( yyerrflag > 0 ) --yyerrflag;
|
||||
goto yystack;
|
||||
}
|
||||
|
||||
yydefault:
|
||||
/* default state action */
|
||||
|
||||
if( (yyn=yydef[yystate]) == -2 ) {
|
||||
if( yychar<0 ) if( (yychar=yylex())<0 ) yychar = 0;
|
||||
/* look through exception table */
|
||||
|
||||
for( yyxi=yyexca; (*yyxi!= (-1)) || (yyxi[1]!=yystate) ; yyxi += 2 ) ; /* VOID */
|
||||
|
||||
while( *(yyxi+=2) >= 0 ){
|
||||
if( *yyxi == yychar ) break;
|
||||
}
|
||||
if( (yyn = yyxi[1]) < 0 ) return(0); /* accept */
|
||||
}
|
||||
|
||||
if( yyn == 0 ){ /* error */
|
||||
/* error ... attempt to resume parsing */
|
||||
|
||||
switch( yyerrflag ){
|
||||
|
||||
case 0: /* brand new error */
|
||||
|
||||
yyerror( "syntax error" );
|
||||
yyerrlab:
|
||||
++yynerrs;
|
||||
|
||||
case 1:
|
||||
case 2: /* incompletely recovered error ... try again */
|
||||
|
||||
yyerrflag = 3;
|
||||
|
||||
/* find a state where "error" is a legal shift action */
|
||||
|
||||
while ( yyps >= yys ) {
|
||||
yyn = yypact[*yyps] + YYERRCODE;
|
||||
if( yyn>= 0 && yyn < YYLAST && yychk[yyact[yyn]] == YYERRCODE ){
|
||||
yystate = yyact[yyn]; /* simulate a shift of "error" */
|
||||
goto yystack;
|
||||
}
|
||||
yyn = yypact[*yyps];
|
||||
|
||||
/* the current yyps has no shift onn "error", pop stack */
|
||||
|
||||
#ifdef YYDEBUG
|
||||
if( yydebug ) printf( "error recovery pops state %d, uncovers %d\n", *yyps, yyps[-1] );
|
||||
#endif
|
||||
--yyps;
|
||||
--yypv;
|
||||
}
|
||||
|
||||
/* there is no state on the stack with an error shift ... abort */
|
||||
|
||||
yyabort:
|
||||
return(1);
|
||||
|
||||
|
||||
case 3: /* no shift yet; clobber input char */
|
||||
|
||||
#ifdef YYDEBUG
|
||||
if( yydebug ) printf( "error recovery discards char %d\n", yychar );
|
||||
#endif
|
||||
|
||||
if( yychar == 0 ) goto yyabort; /* don't discard EOF, quit */
|
||||
yychar = -1;
|
||||
goto yynewstate; /* try again in the same state */
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* reduction by production yyn */
|
||||
|
||||
#ifdef YYDEBUG
|
||||
if( yydebug ) printf("reduce %d\n",yyn);
|
||||
#endif
|
||||
yyps -= yyr2[yyn];
|
||||
yypvt = yypv;
|
||||
yypv -= yyr2[yyn];
|
||||
yyval = yypv[1];
|
||||
yym=yyn;
|
||||
/* consult goto table to find next state */
|
||||
yyn = yyr1[yyn];
|
||||
yyj = yypgo[yyn] + *yyps + 1;
|
||||
if( yyj>=YYLAST || yychk[ yystate = yyact[yyj] ] != -yyn ) yystate = yyact[yypgo[yyn]];
|
||||
switch(yym){
|
||||
|
||||
case 4:
|
||||
{ yyerrok; } break;
|
||||
case 5:
|
||||
{ printf("store\n"); } break;
|
||||
case 6:
|
||||
{ printf("add\n"); } break;
|
||||
case 7:
|
||||
{ printf("negate\nadd\n"); } break;
|
||||
case 8:
|
||||
{ printf("multiply\n"); } break;
|
||||
case 9:
|
||||
{ printf("divide\n"); } break;
|
||||
case 10:
|
||||
{ printf("negate\n"); } break;
|
||||
case 12:
|
||||
{ printf("load\n"); } break;
|
||||
case 13:
|
||||
{ printf("push %s\n", yytext); } break;
|
||||
case 14:
|
||||
{ printf("%s\n", yytext); } break;
|
||||
}
|
||||
goto yystack; /* stack new state and value */
|
||||
|
||||
}
|
||||
int yywrap() { return 1; }
|
||||
Loading…
Add table
Add a link
Reference in a new issue