[gforth] / gforth / prim  

gforth: gforth/prim

Diff for /gforth/prim between version 1.230 and 1.254

version 1.230, Tue Jul 15 16:11:49 2008 UTC version 1.254, Sat Aug 21 19:08:46 2010 UTC
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 \ Gforth primitives  \ Gforth primitives
   
 \ Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
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 SET_IP(DOES_CODE1(CFA));  SET_IP(DOES_CODE1(CFA));
 #endif /* !defined(NO_IP) */  #endif /* !defined(NO_IP) */
   
 (does-handler) ( -- )   gforth-internal paren_does_handler  (doabicode) ( ... -- ...)       gforth-internal paren_doabicode
 ""just a slot to have an encoding for the DOESJUMP,  ""run-time routine for @code{ABI-code} definitions""
 which is no longer used anyway (!! eliminate this)""  abifunc *f = (abifunc *)PFA(CFA);
   Float *fp_mem = fp;
   sp = (*f)(sp, &fp_mem);
   fp = fp_mem;
   #ifdef NO_IP
   INST_TAIL;
   goto *next_code;
   #endif /* defined(NO_IP) */
   
   (do;abicode) ( ... -- ... ) gforth-internal paren_do_semicolon_abi_code
   ""run-time routine for @code{;abi-code}-defined words""
   Float *fp_mem = fp;
   Address body = (Address)PFA(CFA);
   semiabifunc *f = (semiabifunc *)DOES_CODE1(CFA);
   sp = (*f)(sp, &fp_mem, body);
   fp = fp_mem;
   #ifdef NO_IP
   INST_TAIL;
   goto *next_code;
   #endif /* defined(NO_IP) */
   
 \F [endif]  \F [endif]
   
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 wcwidth ( u -- n )      gforth  wcwidth ( u -- n )      gforth
 ""The number of fixed-width characters per unicode character u""  ""The number of fixed-width characters per unicode character u""
   #ifdef HAVE_WCWIDTH
 n = wcwidth(u);  n = wcwidth(u);
   #else
   n = 1;
   #endif
   
 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
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 your machine has a separate instruction cache. In such cases,  your machine has a separate instruction cache. In such cases,
 @code{flush-icache} does nothing instead of flushing the instruction  @code{flush-icache} does nothing instead of flushing the instruction
 cache.""  cache.""
 FLUSH_ICACHE(c_addr,u);  FLUSH_ICACHE((caddr_t)c_addr,u);
   
 (bye)   ( n -- )        gforth  paren_bye  (bye)   ( n -- )        gforth  paren_bye
 SUPER_END;  SUPER_END;
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 u2 = (c_addr2 == NULL ? 0 : strlen((char *)c_addr2));  u2 = (c_addr2 == NULL ? 0 : strlen((char *)c_addr2));
   
 open-pipe       ( c_addr u wfam -- wfileid wior )       gforth  open_pipe  open-pipe       ( c_addr u wfam -- wfileid wior )       gforth  open_pipe
   fflush(stdout);
 wfileid=(Cell)popen(cstr(c_addr,u,1),pfileattr[wfam]); /* ~ expansion of 1st arg? */  wfileid=(Cell)popen(cstr(c_addr,u,1),pfileattr[wfam]); /* ~ expansion of 1st arg? */
 wior = IOR(wfileid==0); /* !! the man page says that errno is not set reliably */  wior = IOR(wfileid==0); /* !! the man page says that errno is not set reliably */
   
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 variables @code{gforth_SP} and @code{gforth_FP}.""  variables @code{gforth_SP} and @code{gforth_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 */
   IF_fpTOS(fp[0]=fpTOS);
 gforth_FP=fp;  gforth_FP=fp;
 gforth_SP=sp;  gforth_SP=sp;
   gforth_RP=rp;
   gforth_LP=lp;
   #ifdef HAS_LINKBACK
 ((void (*)())w)();  ((void (*)())w)();
   #else
   ((void (*)(void *))w)(gforth_pointers);
   #endif
 sp=gforth_SP;  sp=gforth_SP;
 fp=gforth_FP;  fp=gforth_FP;
   rp=gforth_RP;
   lp=gforth_LP;
   IF_fpTOS(fpTOS=fp[0]);
   
 \+  \+
 \+file  \+file
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 read-file       ( c_addr u1 wfileid -- u2 wior )        file    read_file  read-file       ( c_addr u1 wfileid -- u2 wior )        file    read_file
 /* !! fread does not guarantee enough */  /* !! fread does not guarantee enough */
 u2 = fread(c_addr, sizeof(Char), u1, (FILE *)wfileid);  u2 = fread(c_addr, sizeof(Char), u1, (FILE *)wfileid);
   if (u2>0)
      gf_regetc((FILE *)wfileid);
 wior = FILEIO(u2<u1 && ferror((FILE *)wfileid));  wior = FILEIO(u2<u1 && ferror((FILE *)wfileid));
 /* !! is the value of ferror errno-compatible? */  /* !! is the value of ferror errno-compatible? */
 if (wior)  if (wior)
   clearerr((FILE *)wfileid);    clearerr((FILE *)wfileid);
   
 (read-line)     ( c_addr u1 wfileid -- u2 flag u3 wior ) file   paren_read_line  (read-line)     ( c_addr u1 wfileid -- u2 flag u3 wior ) file   paren_read_line
 struct Cellquad r = read_line(c_addr, u1, wfileid);  struct Cellquad r = read_line(c_addr, u1, (FILE *)wfileid);
 u2   = r.n1;  u2   = r.n1;
 flag = r.n2;  flag = r.n2;
 u3   = r.n3;  u3   = r.n3;
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 wior = IOR(chdir(tilde_cstr(c_addr, u, 1)));  wior = IOR(chdir(tilde_cstr(c_addr, u, 1)));
   
 get-dir ( c_addr1 u1 -- c_addr2 u2 )    gforth get_dir  get-dir ( c_addr1 u1 -- c_addr2 u2 )    gforth get_dir
 ""Store the current directory in the buffer specified by @{c-addr1, u1}.  ""Store the current directory in the buffer specified by @i{c-addr1, u1}.
 If the buffer size is not sufficient, return 0 0""  If the buffer size is not sufficient, return 0 0""
 c_addr2 = (Char *)getcwd((char *)c_addr1, u1);  c_addr2 = (Char *)getcwd((char *)c_addr1, u1);
 if(c_addr2 != NULL) {  if(c_addr2 != NULL) {
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   u2 = 0;    u2 = 0;
 }  }
   
   =mkdir ( c_addr u wmode -- wior )        gforth equals_mkdir
   ""Create directory @i{c-addr u} with mode @i{wmode}.""
   wior = IOR(mkdir(tilde_cstr(c_addr,u,1),wmode));
   
 \+  \+
   
 newline ( -- c_addr u ) gforth  newline ( -- c_addr u ) gforth
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 int decpt;  int decpt;
 sig=ecvt(r, u, &decpt, &flag);  sig=ecvt(r, u, &decpt, &flag);
 n=(r==0. ? 1 : decpt);  n=(r==0. ? 1 : decpt);
   flag=signbit(r); /* not all ecvt()s do this as desired */
 f1=FLAG(flag!=0);  f1=FLAG(flag!=0);
 f2=FLAG(isdigit((unsigned)(sig[0]))!=0);  f2=FLAG(isdigit((unsigned)(sig[0]))!=0);
 siglen=strlen((char *)sig);  siglen=strlen((char *)sig);
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 \g syslib  \g syslib
   
 open-lib        ( c_addr1 u1 -- u2 )    gforth  open_lib  open-lib        ( c_addr1 u1 -- u2 )    gforth  open_lib
 #if 1  u2 = gforth_dlopen(c_addr1, u1);
 u2 = (UCell)lt_dlopen(tilde_cstr(c_addr1, u1, 1));  
 #elif defined(HAVE_LIBDL) || defined(HAVE_DLOPEN)  
 #ifndef RTLD_GLOBAL  
 #define RTLD_GLOBAL 0  
 #endif  
 u2=(UCell) dlopen(tilde_cstr(c_addr1, u1, 1), RTLD_GLOBAL | RTLD_LAZY);  
 #else  
 #  ifdef _WIN32  
 u2 = (Cell) GetModuleHandle(tilde_cstr(c_addr1, u1, 1));  
 #  else  
 #warning Define open-lib!  
 u2 = 0;  
 #  endif  
 #endif  
   
 lib-sym ( c_addr1 u1 u2 -- u3 ) gforth  lib_sym  lib-sym ( c_addr1 u1 u2 -- u3 ) gforth  lib_sym
 #if 1  #ifdef HAVE_LIBLTDL
 u3 = (UCell) lt_dlsym((lt_dlhandle)u2, cstr(c_addr1, u1, 1));  u3 = (UCell) lt_dlsym((lt_dlhandle)u2, cstr(c_addr1, u1, 1));
 #elif defined(HAVE_LIBDL) || defined(HAVE_DLOPEN)  #elif defined(HAVE_LIBDL) || defined(HAVE_DLOPEN)
 u3 = (UCell) dlsym((void*)u2,cstr(c_addr1, u1, 1));  u3 = (UCell) dlsym((void*)u2,cstr(c_addr1, u1, 1));
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 lib-error ( -- c_addr u )       gforth  lib_error  lib-error ( -- c_addr u )       gforth  lib_error
 ""Error message for last failed @code{open-lib} or @code{lib-sym}.""  ""Error message for last failed @code{open-lib} or @code{lib-sym}.""
 c_addr = lt_dlerror();  #ifdef HAVE_LIBLTDL
 u = (c_addr == NULL) ? 0 : strlen(c_addr);  c_addr = (Char *)lt_dlerror();
   u = (c_addr == NULL) ? 0 : strlen((char *)c_addr);
   #elif defined(HAVE_LIBDL) || defined(HAVE_DLOPEN)
   c_addr = dlerror();
   u = strlen(c_addr);
   #else
   c_addr = "libltdl is not configured";
   u = strlen(c_addr);
   #endif
   
   be-w! ( w c_addr -- )   gforth w_store_be
   ""Store the bottom 16 bits of @i{w} at @i{c_addr} in big endian format.""
   c_addr[0] = w >> 8;
   c_addr[1] = w;
   
   be-l! ( w c_addr -- )   gforth l_store_be
   ""Store the bottom 32 bits of @i{w} at @i{c_addr} in big endian format.""
   c_addr[0] = w >> 24;
   c_addr[1] = w >> 16;
   c_addr[2] = w >> 8;
   c_addr[3] = w;
   
   le-w! ( w c_addr -- )   gforth w_store_le
   ""Store the bottom 16 bits of @i{w} at @i{c_addr} in big endian format.""
   c_addr[1] = w >> 8;
   c_addr[0] = w;
   
   le-l! ( w c_addr -- )   gforth l_store_le
   ""Store the bottom 32 bits of @i{w} at @i{c_addr} in big endian format.""
   c_addr[3] = w >> 24;
   c_addr[2] = w >> 16;
   c_addr[1] = w >> 8;
   c_addr[0] = w;
   
   be-uw@ ( c_addr -- u )  gforth w_fetch_be
   ""@i{u} is the zero-extended 16-bit big endian value stored at @i{c_addr}.""
   u = (c_addr[0] << 8) | (c_addr[1]);
   
   be-ul@ ( c_addr -- u )  gforth l_fetch_be
   ""@i{u} is the zero-extended 32-bit big endian value stored at @i{c_addr}.""
   u = (c_addr[0] << 24) | (c_addr[1] << 16) | (c_addr[2] << 8) | (c_addr[3]);
   
   le-uw@ ( c_addr -- u )  gforth w_fetch_le
   ""@i{u} is the zero-extended 16-bit little endian value stored at @i{c_addr}.""
   u = (c_addr[1] << 8) | (c_addr[0]);
   
   le-ul@ ( c_addr -- u )  gforth l_fetch_le
   ""@i{u} is the zero-extended 32-bit little endian value stored at @i{c_addr}.""
   u = (c_addr[3] << 24) | (c_addr[2] << 16) | (c_addr[1] << 8) | (c_addr[0]);
   
   \+64bit
   
   x! ( w c_addr -- )      gforth x_store
   ""Store the bottom 64 bits of @i{w} at 64-bit-aligned @i{c_addr}.""
   *(UOctabyte *)c_addr = w;
   
   ux@ ( c_addr -- u )     gforth u_x_fetch
   ""@i{u} is the zero-extended 64-bit value stored at 64-bit-aligned @i{c_addr}.""
   u = *(UOctabyte *)c_addr;
   
   sx@ ( c_addr -- n )     gforth s_x_fetch
   ""@i{u} is the sign-extended 64-bit value stored at 64-bit-aligned @i{c_addr}.""
   n = *(Octabyte *)c_addr;
   
   be-x! ( w c_addr -- )   gforth b_e_x_store
   ""Store the bottom 64 bits of @i{w} at @i{c_addr} in big endian format.""
   c_addr[0] = w >> 56;
   c_addr[1] = w >> 48;
   c_addr[2] = w >> 40;
   c_addr[3] = w >> 32;
   c_addr[4] = w >> 24;
   c_addr[5] = w >> 16;
   c_addr[6] = w >> 8;
   c_addr[7] = w;
   
   le-x! ( w c_addr -- )   gforth l_e_x_store
   ""Store the bottom 64 bits of @i{w} at @i{c_addr} in big endian format.""
   c_addr[7] = w >> 56;
   c_addr[6] = w >> 48;
   c_addr[5] = w >> 40;
   c_addr[4] = w >> 32;
   c_addr[3] = w >> 24;
   c_addr[2] = w >> 16;
   c_addr[1] = w >> 8;
   c_addr[0] = w;
   
   be-ux@ ( c_addr -- u )  gforth b_e_u_x_fetch
   ""@i{u} is the zero-extended 64-bit big endian value stored at @i{c_addr}.""
   u = (((Cell)(c_addr[0]) << 56) |
        ((Cell)(c_addr[1]) << 48) |
        ((Cell)(c_addr[2]) << 40) |
        ((Cell)(c_addr[3]) << 32) |
        ((Cell)(c_addr[4]) << 24) |
        ((Cell)(c_addr[5]) << 16) |
        ((Cell)(c_addr[6]) << 8) |
        ((Cell)(c_addr[7])));
   
   le-ux@ ( c_addr -- u )  gforth l_e_u_x_fetch
   ""@i{u} is the zero-extended 64-bit little endian value stored at @i{c_addr}.""
   u = (((Cell)(c_addr[7]) << 56) |
        ((Cell)(c_addr[6]) << 48) |
        ((Cell)(c_addr[5]) << 40) |
        ((Cell)(c_addr[4]) << 32) |
        ((Cell)(c_addr[3]) << 24) |
        ((Cell)(c_addr[2]) << 16) |
        ((Cell)(c_addr[1]) << 8) |
        ((Cell)(c_addr[0])));
   
 \+  \+
   \+
 \g peephole  \g peephole
   
 \+peephole  \+peephole
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Line 2638 
   
 \+  \+
   
   \g primitive_centric
   
   \ primitives for primitive-centric code
   \ another one is does-exec
   
   abi-call        ( #a_callee ... -- ... ) gforth-internal abi_call
   /* primitive for compiled ABI-CODE words */
   abifunc *f = (abifunc *)a_callee;
   Float *fp_mem = fp;
   sp = (*f)(sp, &fp_mem);
   fp = fp_mem;
   
   ;abi-code-exec ( #a_cfa ... -- ... ) gforth-internal semi_abi_code_exec
   /* primitive for performing ;ABI-CODE words */
   Float *fp_mem = fp;
   semiabifunc *f = (semiabifunc *)DOES_CODE1(a_cfa);
   Address body = (Address)PFA(a_cfa);
   sp = (*f)(sp, &fp_mem, body);
   fp = fp_mem;
   
   lit-execute     ( #a_addr -- )  new     lit_execute
   /* for ;code and code words; a static superinstruction would be more general,
      but VM_JUMP is currently not supported there */
   #ifndef NO_IP
   ip=IP;
   #endif
   SUPER_END;
   VM_JUMP(EXEC1((Xt)a_addr));
   
   
 \g static_super  \g static_super
   
 ifdef(`STACK_CACHE_FILE',  ifdef(`STACK_CACHE_FILE',

Generate output suitable for use with a patch program
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Removed from v.1.230  
changed lines
  Added in v.1.254
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