yas-grammar.c

来自「深入理解计算机系统 的lab」· C语言 代码 · 共 1,835 行 · 第 1/4 页

       21,   30,   31,   32,   21,   21,   21,   21,   33,   21,
       34,   35,   36,   37,   38,   39,   40,   41,   34,   42,
       43,   44,   45,   46,   47,   47,   47,   34,   48,   47,
       49,   47,   47,   47,   50,   51,   52,   53,   54,   55,
       47,   56,   57,   58,   47,   47,   47,   47,   59,   47,
       61,   61,   61,   61,   63,   64,   65,   64,   65,   67,
       68,   71,   71,   72,   73,   71,   71,   71,   71,   78,

       80,   84,   74,  157,   86,   87,   75,   86,   81,   88,
       89,   90,   76,   94,   96,   85,  102,  103,   95,  200,
       97,   78,  105,  106,   98,  104,  105,  106,  108,  109,
      102,  103,  200,  110,  102,  103,  102,  103,  102,  103,
      102,  103,  102,  103,  143,  143,  118,   86,  112,  112,
      102,  103,  112,  112,  111,  102,  103,   64,   65,  123,
      112,  112,  120,  124,  119,  125,  120,  120,  120,   86,
      120,  113,  114,   86,  120,  120,  120,  120,  132,  126,
      115,  120,  127,  128,  116,  120,  119,  129,  130,  131,
      117,  101,  101,  102,  103,  101,  101,  101,  101,  101,

      101,  101,  101,  101,  101,  102,  103,  101,  101,  101,
      101,  101,  101,  101,  101,  120,  200,  120,  204,  120,
      230,  120,  200,  120,  121,  120,  133,  120,  134,  120,
      135,  140,  122,  120,  137,  136,  229,  120,   67,   68,
      138,  120,   67,   68,  139,  120,  141,   63,   64,   65,
      144,  145,  146,  147,   71,   71,  155,  156,  102,  103,
      102,  103,  104,  105,  106,  148,  105,  106,  108,  109,
      108,  109,  102,  103,   86,  110,  102,  103,  102,  103,
      102,  103,  102,  103,  102,  103,  102,  103,  112,  112,
      102,  103,  172,  173,  174,  175,  183,  184,  186,  228,

      187,   86,  190,  120,  227,  177,  120,  176,  120,  188,
      120,  120,  179,   86,  180,  120,  120,  120,  181,  178,
      102,  103,  189,  120,  120,  120,  120,  120,  127,  195,
      185,  185,  185,  191,  120,  120,  185,  185,  185,  185,
      185,  120,  127,  120,  120,  127,  204,  192,  120,  120,
      120,  120,  120,  127,  120,  193,  120,  120,  120,  200,
      120,  204,  120,  120,  127,  120,  200,  194,  120,  120,
      196,  120,  198,  127,  120,  120,  197,  120,  143,  143,
      155,  156,  120,  120,  155,  156,  199,  102,  103,  102,
      103,  102,  103,  102,  103,  183,  184,  102,  103,  102,

      103,  102,  103,  102,  103,  102,  103,  102,  103,  183,
      184,  120,  204,  219,  102,  103,  213,  127,  213,  120,
      213,  120,  214,  213,  226,  213,  213,  213,   86,  213,
      216,  120,  120,  215,   86,  120,  217,  218,  127,  120,
      120,  127,  120,  120,  127,  120,  120,  102,  103,  120,
      120,  220,  223,  120,  120,  222,  120,  120,  120,  212,
      221,  120,  127,  211,  120,  120,  120,  224,  120,  120,
      225,  127,  210,  120,  127,   86,  120,  102,  103,  102,
      103,  102,  103,  120,  102,  103,  120,  120,  127,  127,
      209,  120,  120,  208,  120,  120,  102,  103,  231,  217,

      120,  232,  217,  217,  120,  120,  120,  233,  207,  120,
      127,  206,  120,  120,  120,  127,  120,  120,   86,  120,
      234,  235,  127,  217,  120,  127,  120,  120,   86,   86,
       86,  205,  127,  204,  120,   60,   60,   60,   62,   62,
       62,   66,   66,   66,   79,   79,  101,  101,  101,  107,
      107,  107,  120,  120,  120,  142,  142,  142,  154,  154,
      154,  182,  182,  182,  203,  202,  201,  200,  200,  171,
      170,  169,  168,   86,  167,  166,   86,  165,  164,   86,
       86,   86,   86,  163,  162,  161,  160,  159,  158,  153,
      152,  151,  150,  149,   69,  100,   99,   93,   92,   91,

       83,   82,   77,   70,   69,  236,    7,  236,  236,  236,
      236,  236,  236,  236,  236,  236,  236,  236,  236,  236,
      236,  236,  236,  236,  236,  236,  236,  236,  236,  236,
      236,  236,  236,  236,  236,  236,  236,  236,  236,  236,
      236,  236,  236,  236,  236,  236,  236
    } ;

static yyconst short int yy_chk[648] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
        3,    3,    4,    4,    9,    9,    9,   11,   11,   12,
       12,   16,   16,   17,   17,   19,   19,   20,   20,   19,

       22,   25,   17,  246,   26,   26,   17,  230,   22,   26,
       26,   26,   17,   30,   31,   25,   34,   34,   30,  147,
       31,   19,   37,   37,   31,   35,   35,   35,   38,   38,
       39,   39,  147,   39,   40,   40,   41,   41,   42,   42,
       44,   44,   46,   46,   60,   60,   44,  229,   42,   42,
       45,   45,   46,   46,   40,   43,   43,   65,   65,   49,
       45,   45,   49,   50,   45,   51,   50,  120,   51,  228,
       49,   43,   43,  227,   50,  120,   51,   53,   53,   51,
       43,   52,   52,   52,   43,   53,   45,   52,   52,   52,
       43,   47,   47,   47,   47,   47,   47,   47,   47,   47,

       47,   47,   47,   48,   48,   48,   48,   48,   48,   48,
       48,   48,   48,   48,   48,   54,  148,   58,  226,   55,
      212,   56,  148,   54,   48,   58,   54,   55,   55,   56,
       56,   58,   48,   57,   57,   56,  211,   59,   66,   66,
       57,   57,   68,   68,   57,   59,   59,   63,   63,   63,
       70,   70,   70,   70,   71,   71,   77,   77,  101,  101,
      103,  103,  104,  104,  104,   70,  106,  106,  107,  107,
      109,  109,  110,  110,  210,  110,  111,  111,  112,  112,
      113,  113,  114,  114,  115,  115,  116,  116,  112,  112,
      117,  117,  111,  111,  111,  111,  118,  118,  121,  209,

      122,  208,  125,  123,  207,  113,  121,  111,  122,  123,
      125,  123,  115,  206,  116,  127,  124,  136,  117,  114,
      119,  119,  124,  127,  124,  136,  126,  128,  128,  136,
      119,  119,  119,  126,  126,  128,  119,  119,  119,  119,
      119,  129,  129,  130,  131,  131,  205,  132,  133,  129,
      132,  130,  131,  130,  134,  133,  133,  135,  132,  145,
      137,  203,  134,  138,  134,  135,  145,  135,  137,  139,
      138,  138,  140,  137,  140,  141,  139,  139,  142,  142,
      154,  154,  140,  141,  156,  156,  141,  172,  172,  173,
      173,  174,  174,  175,  175,  182,  182,  176,  176,  177,

      177,  178,  178,  179,  179,  180,  180,  181,  181,  184,
      184,  186,  202,  190,  213,  213,  175,  186,  173,  186,
      176,  190,  177,  172,  201,  173,  176,  174,  171,  175,
      179,  189,  187,  178,  170,  188,  180,  181,  187,  189,
      187,  188,  191,  188,  189,  192,  193,  217,  217,  195,
      191,  191,  195,  192,  193,  193,  194,  195,  196,  169,
      192,  197,  194,  168,  194,  198,  196,  196,  199,  197,
      197,  198,  167,  198,  199,  166,  199,  214,  214,  215,
      215,  216,  216,  219,  218,  218,  220,  221,  221,  219,
      165,  219,  222,  164,  220,  221,  231,  231,  214,  215,

      222,  220,  216,  218,  223,  224,  225,  222,  163,  232,
      223,  162,  223,  224,  225,  232,  233,  232,  161,  234,
      224,  225,  233,  231,  233,  234,  235,  234,  160,  159,
      158,  153,  235,  152,  235,  237,  237,  237,  238,  238,
      238,  239,  239,  239,  240,  240,  241,  241,  241,  242,
      242,  242,  243,  243,  243,  244,  244,  244,  245,  245,
      245,  247,  247,  247,  151,  150,  149,  146,  144,  100,
       99,   98,   97,   96,   95,   94,   93,   92,   91,   90,
       89,   88,   87,   85,   84,   83,   82,   81,   80,   76,
       75,   74,   73,   72,   69,   33,   32,   29,   28,   27,

       24,   23,   18,   14,   13,    7,  236,  236,  236,  236,
      236,  236,  236,  236,  236,  236,  236,  236,  236,  236,
      236,  236,  236,  236,  236,  236,  236,  236,  236,  236,
      236,  236,  236,  236,  236,  236,  236,  236,  236,  236,
      236,  236,  236,  236,  236,  236,  236
    } ;

static yy_state_type yy_state_buf[YY_BUF_SIZE + 2], *yy_state_ptr;
static char *yy_full_match;
static int yy_lp;
#define REJECT \
{ \
*yy_cp = yy_hold_char; /* undo effects of setting up yytext */ \
yy_cp = yy_full_match; /* restore poss. backed-over text */ \
++yy_lp; \
goto find_rule; \
}
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *yytext;
#line 1 "yas-grammar.lex"
#define INITIAL 0
/* Grammar for Y86 Assembler */
#include "yas.h"
unsigned int atoh(const char *);
#define ERR 1
#define COM 2

#line 628 "lex.yy.c"

/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap YY_PROTO(( void ));
#else
extern int yywrap YY_PROTO(( void ));
#endif
#endif

#ifndef YY_NO_UNPUT
static void yyunput YY_PROTO(( int c, char *buf_ptr ));
#endif

#ifndef yytext_ptr
static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int ));
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen YY_PROTO(( yyconst char * ));
#endif

#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput YY_PROTO(( void ));
#else
static int input YY_PROTO(( void ));
#endif
#endif

#if YY_STACK_USED
static int yy_start_stack_ptr = 0;
static int yy_start_stack_depth = 0;
static int *yy_start_stack = 0;
#ifndef YY_NO_PUSH_STATE
static void yy_push_state YY_PROTO(( int new_state ));
#endif
#ifndef YY_NO_POP_STATE
static void yy_pop_state YY_PROTO(( void ));
#endif
#ifndef YY_NO_TOP_STATE
static int yy_top_state YY_PROTO(( void ));
#endif

#else
#define YY_NO_PUSH_STATE 1
#define YY_NO_POP_STATE 1
#define YY_NO_TOP_STATE 1
#endif

#ifdef YY_MALLOC_DECL
YY_MALLOC_DECL
#else
#if __STDC__
#ifndef __cplusplus
#include <stdlib.h>
#endif
#else
/* Just try to get by without declaring the routines.  This will fail
 * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
 * or sizeof(void*) != sizeof(int).
 */
#endif
#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* Copy whatever the last rule matched to the standard output. */

#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite().
 */
#define ECHO (void) fwrite( yytext, yyleng, 1, yyout )
#endif

/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
	if ( yy_current_buffer->yy_is_interactive ) \
		{ \
		int c = '*', n; \
		for ( n = 0; n < max_size && \
			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
			buf[n] = (char) c; \
		if ( c == '\n' ) \
			buf[n++] = (char) c; \
		if ( c == EOF && ferror( yyin ) ) \
			YY_FATAL_ERROR( "input in flex scanner failed" ); \
		result = n; \
		} \
	else if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \
		  && ferror( yyin ) ) \
		YY_FATAL_ERROR( "input in flex scanner failed" );
#endif

/* No semi-colon after return; correct usage is to write "yyterminate();" -
 * we don't want an extra ';' after the "return" because that will cause
 * some compilers to complain about unreachable statements.
 */
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif

/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif

/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
#endif

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL int yylex YY_PROTO(( void ))
#endif

/* Code executed at the beginning of each rule, after yytext and yyleng
 * have been set up.
 */
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif

/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif

#define YY_RULE_SETUP \
	if ( yyleng > 0 ) \
		yy_current_buffer->yy_at_bol = \
				(yytext[yyleng - 1] == '\n'); \
	YY_USER_ACTION

YY_DECL
	{
	register yy_state_type yy_current_state;
	register char *yy_cp = NULL, *yy_bp = NULL;
	register int yy_act;

#line 17 "yas-grammar.lex"


#line 785 "lex.yy.c"

	if ( yy_init )
		{
		yy_init = 0;

#ifdef YY_USER_INIT
		YY_USER_INIT;
#endif

		if ( ! yy_start )
			yy_start = 1;	/* first start state */

		if ( ! yyin )
			yyin = stdin;

		if ( ! yyout )
			yyout = stdout;

		if ( ! yy_current_buffer )
			yy_current_buffer =
				yy_create_buffer( yyin, YY_BUF_SIZE );

		yy_load_buffer_state();
		}

	while ( 1 )		/* loops until end-of-file is reached */
		{
		yy_cp = yy_c_buf_p;

		/* Support of yytext. */
		*yy_cp = yy_hold_char;

		/* yy_bp points to the position in yy_ch_buf of the start of
		 * the current run.
		 */
		yy_bp = yy_cp;

		yy_current_state = yy_start;
		yy_current_state += YY_AT_BOL();
		yy_state_ptr = yy_state_buf;
		*yy_state_ptr++ = yy_current_state;
yy_match:
		do
			{
			register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
				{
				yy_current_state = (int) yy_def[yy_current_state];
				if ( yy_current_state >= 237 )
					yy_c = yy_meta[(unsigned int) yy_c];
				}
			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
			*yy_state_ptr++ = yy_current_state;
			++yy_cp;
			}
		while ( yy_base[yy_current_state] != 607 );

yy_find_action:
		yy_current_state = *--yy_state_ptr;
		yy_lp = yy_accept[yy_current_state];
find_rule: /* we branch to this label when backing up */
		for ( ; ; ) /* until we find what rule we matched */
			{
			if ( yy_lp && yy_lp < yy_accept[yy_current_state + 1] )
				{
				yy_act = yy_acclist[yy_lp];
					{
					yy_full_match = yy_cp;
					break;
					}
				}
			--yy_cp;
			yy_current_state = *--yy_state_ptr;
			yy_lp = yy_accept[yy_current_state];
			}

		YY_DO_BEFORE_ACTION;


do_action:	/* This label is used only to access EOF actions. */


		switch ( yy_act )
	{ /* beginning of action switch */
case 1:
YY_RULE_SETUP
#line 19 "yas-grammar.lex"
{ save_line(yytext); REJECT;} /* Snarf input line */
	YY_BREAK
case 2:
YY_RULE_SETUP
#line 20 "yas-grammar.lex"
{finish_line(); lineno++;}
	YY_BREAK
case 3:
YY_RULE_SETUP
#line 21 "yas-grammar.lex"
{finish_line(); lineno++;}
	YY_BREAK
case 4:
YY_RULE_SETUP
#line 22 "yas-grammar.lex"
{finish_line(); lineno++;}
	YY_BREAK
case 5:
YY_RULE_SETUP
#line 25 "yas-grammar.lex"
;
	YY_BREAK
case 6:
YY_RULE_SETUP
#line 26 "yas-grammar.lex"
;
	YY_BREAK
case 7:
YY_RULE_SETUP
#line 27 "yas-grammar.lex"
add_instr(yytext);
	YY_BREAK
case 8:
YY_RULE_SETUP
#line 28 "yas-grammar.lex"
add_reg(yytext);
	YY_BREAK
case 9:
YY_RULE_SETUP
#line 29 "yas-grammar.lex"
add_num(atoi(yytext));
	YY_BREAK
case 10:
YY_RULE_SETUP
#line 30 "yas-grammar.lex"
add_num(atoh(yytext));
	YY_BREAK