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* added configure mode for DOS-Makefile:
  configure -target=i386-<anythinh>-msdos<anyversion>
  creates Makefile for DOS.
* checked in some mminor changes which never were checked in.
* added special startup file for DOS

    1: /*
    2:   $Id: sparc.h,v 1.2 1994/11/29 16:22:49 pazsan Exp $
    3:   Copyright 1992 by the ANSI figForth Development Group
    4: 
    5:   This is the machine-specific part for a SPARC running SunOS
    6: */
    7: 
    8: 
    9: /* Cell and UCell must be the same size as a pointer */
   10: typedef long Cell;
   11: typedef unsigned long UCell;
   12: 
   13: /* DCell and UDCell must be twice as large as Cell */
   14: typedef long long DCell;
   15: typedef unsigned long long UDCell;
   16: 
   17: /* define this if IEEE singles and doubles are available as C data types */
   18: #define IEEE_FP
   19: 
   20: /* the IEEE types are used only for loading and storing */
   21: /* the IEEE double precision type */
   22: typedef double DFloat;
   23: /* the IEEE single precision type */
   24: typedef float SFloat;
   25: 
   26: /* define this if the least-significant byte is at the largets address */
   27: #define BIG_ENDIAN
   28: 
   29: #ifdef DIRECT_THREADED
   30: /* PFA gives the parameter field address corresponding to a cfa */
   31: #define PFA(cfa)	(((Cell *)cfa)+2)
   32: /* PFA1 is a special version for use just after a NEXT1 */
   33: /* the improvement here is that we may destroy cfa before using PFA1 */
   34: #define PFA1(cfa)	/* PFA(cfa) */ \
   35: 			({register Cell *pfa asm("%15"); \
   36: 			  pfa+2; })
   37: /* CODE_ADDRESS is the address of the code jumped to through the code field */
   38: #define CODE_ADDRESS(cfa)	((Label)((*(unsigned *)(cfa))<<2))
   39: /* MAKE_CF creates an appropriate code field at the cfa; ca is the code address */
   40: /* we use call, since 'branch always' only has 22 bits displacement */
   41: #define MAKE_CF(cfa,ca)	({long *_cfa        = (long *)(cfa); \
   42: 			  unsigned _ca = (unsigned)(ca); \
   43: 			  _cfa[0] = 0x8000000|((_ca+4-(unsigned)_cfa)>>2) /* CALL ca */ \
   44: 			  _cfa[1] = *(long *)_ca; /* delay slot */})
   45: #endif
   46: 
   47: /* this is the point where the does code starts if label points to the
   48:  * jump dodoes */
   49: #define DOES_CODE(label)	(((Xt *)(label))+2)
   50: 
   51: /* this is a special version of DOES_CODE for use in dodoes */
   52: #define DOES_CODE1(label)	({register Xt *_does_code asm("%15"); \
   53: 			  	_does_code+2; })
   54: 
   55: /* this stores a call dodoes at addr */
   56: #define MAKE_DOESJUMP(addr)	({long *_addr = (long *)(addr); \
   57: 				  _addr[0] = 0x8000000|((((unsigned)&&dodoes)+4-((unsigned)_addr))>>2) /* CALL dodoes */ \
   58: 			  _addr[1] = *(long *)&&dodoes; /* delay slot */})
   59: 
   60: /* OS dependences */
   61: 
   62: #define SEEK_SET 0
   63: 
   64: #define memmove(a,b,c) ({ if((long)(a)<(long)(b)) memcpy(a,b,c); \
   65: 			  else \
   66: 			    {  int i; \
   67: 			       for(i=(c)-1; i>=0; i--) \
   68: 				  (char*)a[i]=(char*)b[i]; \
   69: 			    } \
   70: 			})
   71: #define strtoul(a,b,c) strtol(a,b,c)
   72: