Diff for /gforth/prim between versions 1.176 and 1.189

version 1.176, 2005/09/03 07:49:02 version 1.189, 2006/02/19 17:27:12
Line 1 Line 1
 \ Gforth primitives  \ Gforth primitives
   
 \ Copyright (C) 1995,1996,1997,1998,2000,2003,2004 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 719  c2 = toupper(c1); Line 719  c2 = toupper(c1);
 :  :
  dup [char] a - [ char z char a - 1 + ] Literal u<  bl and - ;   dup [char] a - [ char z char a - 1 + ] Literal u<  bl and - ;
   
   capscompare     ( c_addr1 u1 c_addr2 u2 -- n )  string
   ""Compare two strings lexicographically. If they are equal, @i{n} is 0; if
   the first string is smaller, @i{n} is -1; if the first string is larger, @i{n}
   is 1. Currently this is based on the machine's character
   comparison. In the future, this may change to consider the current
   locale and its collation order.""
   /* close ' to keep fontify happy */ 
   n = capscompare(c_addr1, u1, c_addr2, u2);
   
 /string ( c_addr1 u1 n -- c_addr2 u2 )  string  slash_string  /string ( c_addr1 u1 n -- c_addr2 u2 )  string  slash_string
 ""Adjust the string specified by @i{c-addr1, u1} to remove @i{n}  ""Adjust the string specified by @i{c-addr1, u1} to remove @i{n}
 characters from the start of the string.""  characters from the start of the string.""
Line 873  division by 2 (note that @code{/} not ne Line 882  division by 2 (note that @code{/} not ne
 n2 = n1>>1;  n2 = n1>>1;
 :  :
  dup MINI and IF 1 ELSE 0 THEN   dup MINI and IF 1 ELSE 0 THEN
  [ bits/byte cell * 1- ] literal    [ bits/char cell * 1- ] literal 
  0 DO 2* swap dup 2* >r MINI and    0 DO 2* swap dup 2* >r MINI and 
      IF 1 ELSE 0 THEN or r> swap       IF 1 ELSE 0 THEN or r> swap
  LOOP nip ;   LOOP nip ;
Line 1229  useraddr ( #u -- a_addr ) new Line 1238  useraddr ( #u -- a_addr ) new
 a_addr = (Cell *)(up+u);  a_addr = (Cell *)(up+u);
   
 up!     ( a_addr -- )   gforth  up_store  up!     ( a_addr -- )   gforth  up_store
 UP=up=(char *)a_addr;  gforth_UP=up=(char *)a_addr;
 :  :
  up ! ;   up ! ;
 Variable UP  Variable UP
Line 1672  with the window size."" Line 1681  with the window size.""
 urows=rows;  urows=rows;
 ucols=cols;  ucols=cols;
   
   wcwidth ( u -- n )      gforth
   ""The number of fixed-width characters per unicode character u""
   n = wcwidth(u);
   
 flush-icache    ( c_addr u -- ) gforth  flush_icache  flush-icache    ( c_addr u -- ) gforth  flush_icache
 ""Make sure that the instruction cache of the processor (if there is  ""Make sure that the instruction cache of the processor (if there is
 one) does not contain stale data at @i{c-addr} and @i{u} bytes  one) does not contain stale data at @i{c-addr} and @i{u} bytes
Line 1788  access the stack itself. The stack point Line 1801  access the stack itself. The stack point
 variables @code{SP} and @code{FP}.""  variables @code{SP} and @code{FP}.""
 /* This is a first attempt at support for calls to C. This may change in  /* This is a first attempt at support for calls to C. This may change in
    the future */     the future */
 FP=fp;  gforth_FP=fp;
 SP=sp;  gforth_SP=sp;
 ((void (*)())w)();  ((void (*)())w)();
 sp=SP;  sp=gforth_SP;
 fp=FP;  fp=gforth_FP;
   
 \+  \+
 \+file  \+file
Line 2002  dsystem = DZERO; Line 2015  dsystem = DZERO;
 comparisons(f, r1 r2, f_, r1, r2, gforth, gforth, float, gforth)  comparisons(f, r1 r2, f_, r1, r2, gforth, gforth, float, gforth)
 comparisons(f0, r, f_zero_, r, 0., float, gforth, float, gforth)  comparisons(f0, r, f_zero_, r, 0., float, gforth, float, gforth)
   
   s>f     ( n -- r )              float   s_to_f
   r = n;
   
 d>f     ( d -- r )              float   d_to_f  d>f     ( d -- r )              float   d_to_f
 #ifdef BUGGY_LL_D2F  #ifdef BUGGY_LL_D2F
 extern double ldexp(double x, int exp);  extern double ldexp(double x, int exp);
Line 2022  f>d ( r -- d )  float f_to_d Line 2038  f>d ( r -- d )  float f_to_d
 extern DCell double2ll(Float r);  extern DCell double2ll(Float r);
 d = double2ll(r);  d = double2ll(r);
   
   f>s     ( r -- n )              float   f_to_s
   n = (Cell)r;
   
 f!      ( r f_addr -- ) float   f_store  f!      ( r f_addr -- ) float   f_store
 ""Store @i{r} into the float at address @i{f-addr}.""  ""Store @i{r} into the float at address @i{f-addr}.""
 *f_addr = r;  *f_addr = r;
Line 2080  f** ( r1 r2 -- r3 ) float-ext f_star_sta Line 2099  f** ( r1 r2 -- r3 ) float-ext f_star_sta
 ""@i{r3} is @i{r1} raised to the @i{r2}th power.""  ""@i{r3} is @i{r1} raised to the @i{r2}th power.""
 r3 = pow(r1,r2);  r3 = pow(r1,r2);
   
   fm*     ( r1 n -- r2 )  gforth  fm_star
   r2 = r1*n;
   
   fm/     ( r1 n -- r2 )  gforth  fm_slash
   r2 = r1/n;
   
   fm*/    ( r1 n1 n2 -- r2 )      gforth  fm_star_slash
   r2 = (r1*n1)/n2;
   
   f**2    ( r1 -- r2 )    gforth  fm_square
   r2 = r1*r1;
   
 fnegate ( r1 -- r2 )    float   f_negate  fnegate ( r1 -- r2 )    float   f_negate
 r2 = - r1;  r2 = - r1;
   
Line 2422  u3 = 0; Line 2453  u3 = 0;
 #endif  #endif
   
 wcall   ( ... u -- ... )        gforth  wcall   ( ... u -- ... )        gforth
 FP=fp;  gforth_FP=fp;
 sp=(Cell*)(SYSCALL(Cell*(*)(Cell *, void *))u)(sp, &FP);  sp=(Cell*)(SYSCALL(Cell*(*)(Cell *, void *))u)(sp, &gforth_FP);
 fp=FP;  fp=gforth_FP;
   
   uw@ ( c_addr -- u )     gforth u_w_fetch
   ""@i{u} is the zero-extended 16-bit value stored at @i{c_addr}.""
   u = *(UWyde*)(c_addr);
   
   sw@ ( c_addr -- n )     gforth s_w_fetch
   ""@i{n} is the sign-extended 16-bit value stored at @i{c_addr}.""
   n = *(Wyde*)(c_addr);
   
   w! ( w c_addr -- )      gforth w_store
   ""Store the bottom 16 bits of @i{w} at @i{c_addr}.""
   *(Wyde*)(c_addr) = w;
   
   ul@ ( c_addr -- u )     gforth u_l_fetch
   ""@i{u} is the zero-extended 32-bit value stored at @i{c_addr}.""
   u = *(UTetrabyte*)(c_addr);
   
   sl@ ( c_addr -- n )     gforth s_l_fetch
   ""@i{n} is the sign-extended 32-bit value stored at @i{c_addr}.""
   n = *(Tetrabyte*)(c_addr);
   
   l! ( w c_addr -- )      gforth l_store
   ""Store the bottom 32 bits of @i{w} at @i{c_addr}.""
   *(Tetrabyte*)(c_addr) = w;
   
 \+FFCALL  \+FFCALL
   
Line 2529  REST_REGS Line 2584  REST_REGS
 c_addr = prv;  c_addr = prv;
   
 alloc-callback  ( a_ip -- c_addr )      gforth  alloc_callback  alloc-callback  ( a_ip -- c_addr )      gforth  alloc_callback
 c_addr = (char *)alloc_callback(engine_callback, (Xt *)a_ip);  c_addr = (char *)alloc_callback(gforth_callback, (Xt *)a_ip);
   
 va-start-void   ( -- )  gforth  va_start_void  va-start-void   ( -- )  gforth  va_start_void
 va_start_void(clist);  va_start_void(clist);
Line 2621  ffi-prep-cif ( a_atypes n a_rtype a_cif Line 2676  ffi-prep-cif ( a_atypes n a_rtype a_cif
 w = ffi_prep_cif(a_cif, FFI_DEFAULT_ABI, n, a_rtype, a_atypes);  w = ffi_prep_cif(a_cif, FFI_DEFAULT_ABI, n, a_rtype, a_atypes);
   
 ffi-call ( a_avalues a_rvalue a_ip a_cif -- )   gforth ffi_call  ffi-call ( a_avalues a_rvalue a_ip a_cif -- )   gforth ffi_call
   SAVE_REGS
 ffi_call(a_cif, a_ip, a_rvalue, a_avalues);  ffi_call(a_cif, a_ip, a_rvalue, a_avalues);
   REST_REGS
   
 ffi-prep-closure ( a_ip a_cif a_closure -- w )  gforth ffi_prep_closure  ffi-prep-closure ( a_ip a_cif a_closure -- w )  gforth ffi_prep_closure
 w = ffi_prep_closure(a_closure, a_cif, ffi_callback, a_ip);  w = ffi_prep_closure(a_closure, a_cif, gforth_callback, a_ip);
   
 ffi-2@ ( a_addr -- d )  gforth ffi_2fetch  ffi-2@ ( a_addr -- d )  gforth ffi_2fetch
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LONG_LONG
 DLO_IS(d, (Cell*)(*a_addr));  DLO_IS(d, (Cell*)(*a_addr));
 DHI_IS(d, 0);  DHI_IS(d, 0);
 #else  #else
 d = *(DCell*)(*a_addr);  d = *(DCell*)(a_addr);
 #endif  #endif
   
 ffi-2! ( d a_addr -- )  gforth ffi_2store  ffi-2! ( d a_addr -- )  gforth ffi_2store
Line 2642  ffi-2! ( d a_addr -- ) gforth ffi_2store Line 2699  ffi-2! ( d a_addr -- ) gforth ffi_2store
 #endif  #endif
   
 ffi-arg-int ( -- w )    gforth ffi_arg_int  ffi-arg-int ( -- w )    gforth ffi_arg_int
 w = *(Cell*)(*clist++);  w = *(int *)(*clist++);
   
 ffi-arg-longlong ( -- d )       gforth ffi_arg_longlong  ffi-arg-longlong ( -- d )       gforth ffi_arg_longlong
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LONG_LONG
Line 2661  r = *(float*)(*clist++); Line 2718  r = *(float*)(*clist++);
 ffi-arg-double ( -- r ) gforth ffi_arg_double  ffi-arg-double ( -- r ) gforth ffi_arg_double
 r = *(double*)(*clist++);  r = *(double*)(*clist++);
   
 ffi-ret-int ( -- w )    gforth ffi_ret_int  ffi-ret-void ( -- )     gforth ffi_ret_void
   return 0;
   
   ffi-ret-int ( w -- )    gforth ffi_ret_int
 *(int*)(ritem) = w;  *(int*)(ritem) = w;
   return 0;
   
 ffi-ret-longlong ( -- d )       gforth ffi_ret_longlong  ffi-ret-longlong ( d -- )       gforth ffi_ret_longlong
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LONG_LONG
 *(Cell*)(ritem) = DLO(d);  *(Cell*)(ritem) = DLO(d);
 #else  #else
 *(DCell*)(ritem) = d;  *(DCell*)(ritem) = d;
 #endif  #endif
   return 0;
   
 ffi-ret-ptr ( -- c_addr )       gforth ffi_ret_ptr  ffi-ret-ptr ( c_addr -- )       gforth ffi_ret_ptr
 *(char **)(ritem) = c_addr;  *(char **)(ritem) = c_addr;
   return 0;
   
 ffi-ret-float ( -- r )  gforth ffi_ret_float  ffi-ret-float ( r -- )  gforth ffi_ret_float
 *(float*)(ritem) = r;  *(float*)(ritem) = r;
   return 0;
   
 ffi-ret-double ( -- r ) gforth ffi_ret_double  ffi-ret-double ( r -- ) gforth ffi_ret_double
 *(double*)(ritem) = r;  *(double*)(ritem) = r;
   return 0;
   
 \+  \+
   

Removed from v.1.176  
changed lines
  Added in v.1.189


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