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Diff for /gforth/Attic/engine.c between versions 1.35 and 1.41

version 1.35, 1996/02/09 17:34:08 version 1.41, 1997/03/04 17:49:48
Line 45 Line 45
   
 #define IOR(flag)       ((flag)? -512-errno : 0)  #define IOR(flag)       ((flag)? -512-errno : 0)
   
 typedef union {  
   struct {  
 #ifdef WORDS_BIGENDIAN  
     Cell high;  
     UCell low;  
 #else  
     UCell low;  
     Cell high;  
 #endif;  
   } cells;  
   DCell dcell;  
 } Double_Store;  
   
 typedef struct F83Name {  typedef struct F83Name {
   struct F83Name        *next;  /* the link field for old hands */    struct F83Name        *next;  /* the link field for old hands */
   char                  countetc;    char                  countetc;
Line 69  typedef struct F83Name { Line 56  typedef struct F83Name {
 #define F83NAME_SMUDGE(np)      (((np)->countetc & 0x40) != 0)  #define F83NAME_SMUDGE(np)      (((np)->countetc & 0x40) != 0)
 #define F83NAME_IMMEDIATE(np)   (((np)->countetc & 0x20) != 0)  #define F83NAME_IMMEDIATE(np)   (((np)->countetc & 0x20) != 0)
   
 #ifdef USE_TOS  
 #define IF_TOS(x) x  
 #else  
 #define IF_TOS(x)  
 #define TOS (sp[0])  
 #endif  
   
 #ifdef USE_FTOS  
 #define IF_FTOS(x) x  
 #else  
 #define IF_FTOS(x)  
 #define FTOS (fp[0])  
 #endif  
   
 Cell *SP;  Cell *SP;
 Float *FP;  Float *FP;
   Address UP=NULL;
   
 #if 0  #if 0
 /* not used currently */  /* not used currently */
 int emitcounter;  int emitcounter;
Line 134  char *tilde_cstr(Char *from, UCell size, Line 109  char *tilde_cstr(Char *from, UCell size,
     return cstr(from, size, clear);      return cstr(from, size, clear);
   if (size<2 || from[1]=='/') {    if (size<2 || from[1]=='/') {
     s1 = (char *)getenv ("HOME");      s1 = (char *)getenv ("HOME");
       if(s1 == NULL)
         s1 = "";
     s2 = from+1;      s2 = from+1;
     s2_len = size-1;      s2_len = size-1;
   } else {    } else {
     int i;      UCell i;
     for (i=1; i<size && from[i]!='/'; i++)      for (i=1; i<size && from[i]!='/'; i++)
       ;        ;
     {      {
Line 172  char *tilde_cstr(Char *from, UCell size, Line 149  char *tilde_cstr(Char *from, UCell size,
   
 static char* fileattr[6]={"r","rb","r+","r+b","w","wb"};  static char* fileattr[6]={"r","rb","r+","r+b","w","wb"};
   
 static Address up0=NULL;  #ifndef O_BINARY
   #define O_BINARY 0
   #endif
   #ifndef O_TEXT
   #define O_TEXT 0
   #endif
   
   static int ufileattr[6]= {
     O_RDONLY|O_TEXT, O_RDONLY|O_BINARY,
     O_RDWR  |O_TEXT, O_RDWR  |O_BINARY,
     O_WRONLY|O_TEXT, O_WRONLY|O_BINARY };
   
 /* if machine.h has not defined explicit registers, define them as implicit */  /* if machine.h has not defined explicit registers, define them as implicit */
 #ifndef IPREG  #ifndef IPREG
Line 203  static Address up0=NULL; Line 190  static Address up0=NULL;
 #define FTOSREG  #define FTOSREG
 #endif  #endif
   
   #ifndef CPU_DEP1
   # define CPU_DEP1 0
   #endif
   
 /* declare and compute cfa for certain threading variants */  /* declare and compute cfa for certain threading variants */
 /* warning: this is nonsyntactical; it will not work in place of a statement */  /* warning: this is nonsyntactical; it will not work in place of a statement */
 #ifdef CFA_NEXT  #ifdef CFA_NEXT
Line 224  Label *engine(Xt *ip0, Cell *sp0, Cell * Line 215  Label *engine(Xt *ip0, Cell *sp0, Cell *
 #ifdef CFA_NEXT  #ifdef CFA_NEXT
   register Xt cfa CFAREG;    register Xt cfa CFAREG;
 #endif  #endif
   register Address up UPREG = up0;    register Address up UPREG = UP;
   IF_TOS(register Cell TOS TOSREG;)    IF_TOS(register Cell TOS TOSREG;)
   IF_FTOS(register Float FTOS FTOSREG;)    IF_FTOS(register Float FTOS FTOSREG;)
   #if defined(DOUBLY_INDIRECT)
     static Label *symbols;
     static void *routines[]= {
   #else /* !defined(DOUBLY_INDIRECT) */
   static Label symbols[]= {    static Label symbols[]= {
   #endif /* !defined(DOUBLY_INDIRECT) */
     &&docol,      &&docol,
     &&docon,      &&docon,
     &&dovar,      &&dovar,
Line 237  Label *engine(Xt *ip0, Cell *sp0, Cell * Line 233  Label *engine(Xt *ip0, Cell *sp0, Cell *
     &&dodoes,      &&dodoes,
     /* the following entry is normally unused;      /* the following entry is normally unused;
        it's there because its index indicates a does-handler */         it's there because its index indicates a does-handler */
 #ifdef CPU_DEP1  
     CPU_DEP1,      CPU_DEP1,
 #else  
     (Label)0,  
 #endif  
 #include "prim_labels.i"  #include "prim_labels.i"
       0
   };    };
 #ifdef CPU_DEP2  #ifdef CPU_DEP2
   CPU_DEP2    CPU_DEP2
Line 254  Label *engine(Xt *ip0, Cell *sp0, Cell * Line 247  Label *engine(Xt *ip0, Cell *sp0, Cell *
           (unsigned)fp,(unsigned)lp,(unsigned)up);            (unsigned)fp,(unsigned)lp,(unsigned)up);
 #endif  #endif
   
   if (ip == NULL)    if (ip == NULL) {
     return symbols;  #if defined(DOUBLY_INDIRECT)
   #define MAX_SYMBOLS 1000
       int i;
       Cell code_offset = offset_image? 11*sizeof(Cell) : 0;
   
       symbols = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+code_offset)+code_offset);
       for (i=0; i<DOESJUMP+1; i++)
         symbols[i] = (Label)routines[i];
       for (; routines[i]!=0; i++) {
         if (i>=MAX_SYMBOLS) {
           fprintf(stderr,"gforth-ditc: more than %d primitives\n",MAX_SYMBOLS);
           exit(1);
       }
       symbols[i] = &routines[i];
     }
   #endif /* defined(DOUBLY_INDIRECT) */
     return symbols;
   }
   
   IF_TOS(TOS = sp[0]);    IF_TOS(TOS = sp[0]);
   IF_FTOS(FTOS = fp[0]);    IF_FTOS(FTOS = fp[0]);
Removed from v.1.35  
changed lines
  Added in v.1.41

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