y.tab.c

Spim软件的一些源码。其中有Xspim的

#define Y_NMSUB_D_OP 471
#define Y_NMSUB_PS_OP 472
#define Y_NMSUB_S_OP 473
#define Y_NOR_OP 474
#define Y_OR_OP 475
#define Y_ORI_OP 476
#define Y_PFW_OP 477
#define Y_PLL_PS_OP 478
#define Y_PLU_PS_OP 479
#define Y_PREF_OP 480
#define Y_PREFX_OP 481
#define Y_PUL_PS_OP 482
#define Y_PUU_PS_OP 483
#define Y_RDHWR_OP 484
#define Y_RDPGPR_OP 485
#define Y_RECIP_D_OP 486
#define Y_RECIP_S_OP 487
#define Y_RFE_OP 488
#define Y_ROTR_OP 489
#define Y_ROTRV_OP 490
#define Y_ROUND_L_D_OP 491
#define Y_ROUND_L_S_OP 492
#define Y_ROUND_W_D_OP 493
#define Y_ROUND_W_S_OP 494
#define Y_RSQRT_D_OP 495
#define Y_RSQRT_S_OP 496
#define Y_SB_OP 497
#define Y_SC_OP 498
#define Y_SDBBP_OP 499
#define Y_SDC1_OP 500
#define Y_SDC2_OP 501
#define Y_SDXC1_OP 502
#define Y_SEB_OP 503
#define Y_SEH_OP 504
#define Y_SH_OP 505
#define Y_SLL_OP 506
#define Y_SLLV_OP 507
#define Y_SLT_OP 508
#define Y_SLTI_OP 509
#define Y_SLTIU_OP 510
#define Y_SLTU_OP 511
#define Y_SQRT_D_OP 512
#define Y_SQRT_S_OP 513
#define Y_SRA_OP 514
#define Y_SRAV_OP 515
#define Y_SRL_OP 516
#define Y_SRLV_OP 517
#define Y_SSNOP_OP 518
#define Y_SUB_D_OP 519
#define Y_SUB_OP 520
#define Y_SUB_PS_OP 521
#define Y_SUB_S_OP 522
#define Y_SUBU_OP 523
#define Y_SUXC1_OP 524
#define Y_SW_OP 525
#define Y_SWC1_OP 526
#define Y_SWC2_OP 527
#define Y_SWL_OP 528
#define Y_SWR_OP 529
#define Y_SWXC1_OP 530
#define Y_SYNC_OP 531
#define Y_SYNCI_OP 532
#define Y_SYSCALL_OP 533
#define Y_TEQ_OP 534
#define Y_TEQI_OP 535
#define Y_TGE_OP 536
#define Y_TGEI_OP 537
#define Y_TGEIU_OP 538
#define Y_TGEU_OP 539
#define Y_TLBP_OP 540
#define Y_TLBR_OP 541
#define Y_TLBWI_OP 542
#define Y_TLBWR_OP 543
#define Y_TLT_OP 544
#define Y_TLTI_OP 545
#define Y_TLTIU_OP 546
#define Y_TLTU_OP 547
#define Y_TNE_OP 548
#define Y_TNEI_OP 549
#define Y_TRUNC_L_D_OP 550
#define Y_TRUNC_L_S_OP 551
#define Y_TRUNC_W_D_OP 552
#define Y_TRUNC_W_S_OP 553
#define Y_WRPGPR_OP 554
#define Y_WSBH_OP 555
#define Y_XOR_OP 556
#define Y_XORI_OP 557
#define Y_ABS_POP 558
#define Y_B_POP 559
#define Y_BAL_POP 560
#define Y_BEQZ_POP 561
#define Y_BGE_POP 562
#define Y_BGEU_POP 563
#define Y_BGT_POP 564
#define Y_BGTU_POP 565
#define Y_BLE_POP 566
#define Y_BLEU_POP 567
#define Y_BLT_POP 568
#define Y_BLTU_POP 569
#define Y_BNEZ_POP 570
#define Y_LA_POP 571
#define Y_LD_POP 572
#define Y_L_D_POP 573
#define Y_L_S_POP 574
#define Y_LI_D_POP 575
#define Y_LI_POP 576
#define Y_LI_S_POP 577
#define Y_MFC1_D_POP 578
#define Y_MOVE_POP 579
#define Y_MTC1_D_POP 580
#define Y_MULO_POP 581
#define Y_MULOU_POP 582
#define Y_NEG_POP 583
#define Y_NEGU_POP 584
#define Y_NOP_POP 585
#define Y_NOT_POP 586
#define Y_REM_POP 587
#define Y_REMU_POP 588
#define Y_ROL_POP 589
#define Y_ROR_POP 590
#define Y_S_D_POP 591
#define Y_S_S_POP 592
#define Y_SD_POP 593
#define Y_SEQ_POP 594
#define Y_SGE_POP 595
#define Y_SGEU_POP 596
#define Y_SGT_POP 597
#define Y_SGTU_POP 598
#define Y_SLE_POP 599
#define Y_SLEU_POP 600
#define Y_SNE_POP 601
#define Y_ULH_POP 602
#define Y_ULHU_POP 603
#define Y_ULW_POP 604
#define Y_USH_POP 605
#define Y_USW_POP 606
#define Y_ALIAS_DIR 607
#define Y_ALIGN_DIR 608
#define Y_ASCII_DIR 609
#define Y_ASCIIZ_DIR 610
#define Y_ASM0_DIR 611
#define Y_BGNB_DIR 612
#define Y_BYTE_DIR 613
#define Y_COMM_DIR 614
#define Y_DATA_DIR 615
#define Y_DOUBLE_DIR 616
#define Y_END_DIR 617
#define Y_ENDB_DIR 618
#define Y_ENDR_DIR 619
#define Y_ENT_DIR 620
#define Y_ERR_DIR 621
#define Y_EXTERN_DIR 622
#define Y_FILE_DIR 623
#define Y_FLOAT_DIR 624
#define Y_FMASK_DIR 625
#define Y_FRAME_DIR 626
#define Y_GLOBAL_DIR 627
#define Y_HALF_DIR 628
#define Y_K_DATA_DIR 629
#define Y_K_TEXT_DIR 630
#define Y_LABEL_DIR 631
#define Y_LCOMM_DIR 632
#define Y_LIVEREG_DIR 633
#define Y_LOC_DIR 634
#define Y_MASK_DIR 635
#define Y_NOALIAS_DIR 636
#define Y_OPTIONS_DIR 637
#define Y_RDATA_DIR 638
#define Y_REPEAT_DIR 639
#define Y_SDATA_DIR 640
#define Y_SET_DIR 641
#define Y_SPACE_DIR 642
#define Y_STRUCT_DIR 643
#define Y_TEXT_DIR 644
#define Y_VERSTAMP_DIR 645
#define Y_VREG_DIR 646
#define Y_WORD_DIR 647




/* Copy the first part of user declarations.  */
#line 432 "d:\\Jim\\Software\\Spim\\Cpu\\parser.y"

#include <stdio.h>

#include "spim.h"
#include "string-stream.h"
#include "spim-utils.h"
#include "inst.h"
#include "reg.h"
#include "mem.h"
#include "sym-tbl.h"
#include "data.h"
#include "scanner.h"
#include "parser.h"


/* return (0) */
#define LINE_PARSE_DONE YYACCEPT

/* return (1) */
#define FILE_PARSE_DONE YYABORT

typedef struct ll
{
  label *head;
  struct ll *tail;
} label_list;


/* Exported Variables: */

int data_dir;		/* Non-zero means item in data segment */

int text_dir;		/* Non-zero means item in text segment */

int parse_error_occurred; /* Non-zero => parse resulted in error */


/* Local functions: */

static imm_expr *branch_offset (int n_inst);
static int cc_to_rt (int cc, int nd, int tf);
static void check_imm_range (imm_expr*, int32, int32);
static void check_uimm_range (imm_expr*, uint32, uint32);
static void clear_labels ();
static label_list *cons_label (label *head, label_list *tail);
static void div_inst (int op, int rd, int rs, int rt, int const_divisor);
static void mips32_r2_inst ();
static void mult_inst (int op, int rd, int rs, int rt);
static void nop_inst ();
static void set_eq_inst (int op, int rd, int rs, int rt);
static void set_ge_inst (int op, int rd, int rs, int rt);
static void set_gt_inst (int op, int rd, int rs, int rt);
static void set_le_inst (int op, int rd, int rs, int rt);
static void store_word_data (int value);
static void trap_inst ();
static void yywarn (char*);


/* Local variables: */

static int null_term;		/* Non-zero means string terminate by \0 */

static void (*store_op) ();	/* Function to store items in an EXPR_LST */

static label_list *this_line_labels = NULL; /* List of label for curent line */

static int noat_flag = 0;	/* Non-zero means program can use $1 */

static char *input_file_name;	/* Name of file being parsed */



/* Enabling traces.  */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif

/* Enabling verbose error messages.  */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
# define YYERROR_VERBOSE 0
#endif

#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
typedef int YYSTYPE;
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif



/* Copy the second part of user declarations.  */


/* Line 214 of yacc.c.  */
#line 943 "y.tab.c"

#if ! defined (yyoverflow) || YYERROR_VERBOSE

/* The parser invokes alloca or malloc; define the necessary symbols.  */

# if YYSTACK_USE_ALLOCA
#  define YYSTACK_ALLOC alloca
# else
#  ifndef YYSTACK_USE_ALLOCA
#   if defined (alloca) || defined (_ALLOCA_H)
#    define YYSTACK_ALLOC alloca
#   else
#    ifdef __GNUC__
#     define YYSTACK_ALLOC __builtin_alloca
#    endif
#   endif
#  endif
# endif

# ifdef YYSTACK_ALLOC
   /* Pacify GCC's `empty if-body' warning. */
#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
# else
#  if defined (__STDC__) || defined (__cplusplus)
#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
#   define YYSIZE_T size_t
#  endif
#  define YYSTACK_ALLOC malloc
#  define YYSTACK_FREE free
# endif
#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */


#if (! defined (yyoverflow) \
     && (! defined (__cplusplus) \
	 || (YYSTYPE_IS_TRIVIAL)))

/* A type that is properly aligned for any stack member.  */
union yyalloc
{
  short yyss;
  YYSTYPE yyvs;
  };

/* The size of the maximum gap between one aligned stack and the next.  */
# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)

/* The size of an array large to enough to hold all stacks, each with