Diff for /gforth/prim between versions 1.139 and 1.258

version 1.139, 2003/08/20 09:23:45 version 1.258, 2011/10/18 13:13:53
Line 1 Line 1
 \ Gforth primitives  \ Gforth primitives
   
 \ Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
 \ Gforth is free software; you can redistribute it and/or  \ Gforth is free software; you can redistribute it and/or
 \ modify it under the terms of the GNU General Public License  \ modify it under the terms of the GNU General Public License
 \ as published by the Free Software Foundation; either version 2  \ as published by the Free Software Foundation, either version 3
 \ of the License, or (at your option) any later version.  \ of the License, or (at your option) any later version.
   
 \ This program is distributed in the hope that it will be useful,  \ This program is distributed in the hope that it will be useful,
Line 15 Line 15
 \ GNU General Public License for more details.  \ GNU General Public License for more details.
   
 \ You should have received a copy of the GNU General Public License  \ You should have received a copy of the GNU General Public License
 \ along with this program; if not, write to the Free Software  \ along with this program. If not, see http://www.gnu.org/licenses/.
 \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.  
   
   
 \ WARNING: This file is processed by m4. Make sure your identifiers  \ WARNING: This file is processed by m4. Make sure your identifiers
Line 100 Line 99
 \E s" struct F83Name *" single data-stack type-prefix f83name  \E s" struct F83Name *" single data-stack type-prefix f83name
 \E s" struct Longname *" single data-stack type-prefix longname  \E s" struct Longname *" single data-stack type-prefix longname
 \E   \E 
   \E data-stack   stack-prefix S:
   \E fp-stack     stack-prefix F:
 \E return-stack stack-prefix R:  \E return-stack stack-prefix R:
 \E inst-stream  stack-prefix #  \E inst-stream  stack-prefix #
 \E   \E 
Line 107 Line 108
 \E store-optimization on  \E store-optimization on
 \E ' noop tail-nextp2 ! \ now INST_TAIL just stores, but does not jump  \E ' noop tail-nextp2 ! \ now INST_TAIL just stores, but does not jump
 \E  \E
 \E include-skipped-insts on \ static superinsts include cells for components  \E `include-skipped-insts' on \ static superinsts include cells for components
 \E                          \ useful for dynamic programming and  \E                            \ useful for dynamic programming and
 \E                          \ superinsts across entry points  \E                            \ superinsts across entry points
   
 \   \ 
 \   \ 
Line 136 Line 137
 \ throw execute, cfa and NEXT1 out?  \ throw execute, cfa and NEXT1 out?
 \ macroize *ip, ip++, *ip++ (pipelining)?  \ macroize *ip, ip++, *ip++ (pipelining)?
   
   \ Stack caching setup
   
   ifdef(`STACK_CACHE_FILE', `include(STACK_CACHE_FILE)', `include(cache0.vmg)')
   
 \ these m4 macros would collide with identifiers  \ these m4 macros would collide with identifiers
 undefine(`index')  undefine(`index')
 undefine(`shift')  undefine(`shift')
 undefine(`symbols')  undefine(`symbols')
   
   \F 0 [if]
   
 \ run-time routines for non-primitives.  They are defined as  \ run-time routines for non-primitives.  They are defined as
 \ primitives, because that simplifies things.  \ primitives, because that simplifies things.
   
 (docol) ( -- R:a_retaddr )      gforth-internal paren_docol  (docol) ( -- R:a_retaddr )      gforth-internal paren_docol
 ""run-time routine for colon definitions""  ""run-time routine for colon definitions""
 a_retaddr = (Cell *)ip;  #ifdef NO_IP
   a_retaddr = next_code;
   INST_TAIL;
   goto **(Label *)PFA(CFA);
   #else /* !defined(NO_IP) */
   a_retaddr = (Cell *)IP;
 SET_IP((Xt *)PFA(CFA));  SET_IP((Xt *)PFA(CFA));
   #endif /* !defined(NO_IP) */
   
 (docon) ( -- w )        gforth-internal paren_docon  (docon) ( -- w )        gforth-internal paren_docon
 ""run-time routine for constants""  ""run-time routine for constants""
 w = *(Cell *)PFA(CFA);  w = *(Cell *)PFA(CFA);
   #ifdef NO_IP
   INST_TAIL;
   goto *next_code;
   #endif /* defined(NO_IP) */
   
 (dovar) ( -- a_body )   gforth-internal paren_dovar  (dovar) ( -- a_body )   gforth-internal paren_dovar
 ""run-time routine for variables and CREATEd words""  ""run-time routine for variables and CREATEd words""
 a_body = PFA(CFA);  a_body = PFA(CFA);
   #ifdef NO_IP
   INST_TAIL;
   goto *next_code;
   #endif /* defined(NO_IP) */
   
 (douser) ( -- a_user )  gforth-internal paren_douser  (douser) ( -- a_user )  gforth-internal paren_douser
 ""run-time routine for constants""  ""run-time routine for constants""
 a_user = (Cell *)(up+*(Cell *)PFA(CFA));  a_user = (Cell *)(up+*(Cell *)PFA(CFA));
   #ifdef NO_IP
   INST_TAIL;
   goto *next_code;
   #endif /* defined(NO_IP) */
   
 (dodefer) ( -- )        gforth-internal paren_dodefer  (dodefer) ( -- )        gforth-internal paren_dodefer
 ""run-time routine for deferred words""  ""run-time routine for deferred words""
 SUPER_END;  #ifndef NO_IP
 EXEC(*(Xt *)PFA(CFA));  ip=IP; /* undo any ip updating that may have been performed by NEXT_P0 */
   #endif /* !defined(NO_IP) */
   SUPER_END; /* !! probably unnecessary and may lead to measurement errors */
   VM_JUMP(EXEC1(*(Xt *)PFA(CFA)));
   
 (dofield) ( n1 -- n2 )  gforth-internal paren_field  (dofield) ( n1 -- n2 )  gforth-internal paren_field
 ""run-time routine for fields""  ""run-time routine for fields""
 n2 = n1 + *(Cell *)PFA(CFA);  n2 = n1 + *(Cell *)PFA(CFA);
   #ifdef NO_IP
   INST_TAIL;
   goto *next_code;
   #endif /* defined(NO_IP) */
   
   (dovalue) ( -- w )      gforth-internal paren_doval
   ""run-time routine for constants""
   w = *(Cell *)PFA(CFA);
   #ifdef NO_IP
   INST_TAIL;
   goto *next_code;
   #endif /* defined(NO_IP) */
   
 (dodoes) ( -- a_body R:a_retaddr )      gforth-internal paren_dodoes  (dodoes) ( -- a_body R:a_retaddr )      gforth-internal paren_dodoes
 ""run-time routine for @code{does>}-defined words""  ""run-time routine for @code{does>}-defined words""
 a_retaddr = (Cell *)ip;  #ifdef NO_IP
   a_retaddr = next_code;
   a_body = PFA(CFA);
   INST_TAIL;
   #ifdef DEBUG
   fprintf(stderr, "dodoes to %x, push %x\n", a_retaddr, a_body);
   #endif
   goto **(Label *)DOES_CODE1(CFA);
   #else /* !defined(NO_IP) */
   a_retaddr = (Cell *)IP;
 a_body = PFA(CFA);  a_body = PFA(CFA);
   #ifdef DEBUG
   fprintf(stderr, "dodoes to %x, push %x\n", a_retaddr, a_body);
   #endif
 SET_IP(DOES_CODE1(CFA));  SET_IP(DOES_CODE1(CFA));
   #endif /* !defined(NO_IP) */
   
   (doabicode) ( ... -- ...)       gforth-internal paren_doabicode
   ""run-time routine for @code{ABI-code} definitions""
   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) */
   
 (does-handler) ( -- )   gforth-internal paren_does_handler  \F [endif]
 ""just a slot to have an encoding for the DOESJUMP,   
 which is no longer used anyway (!! eliminate this)""  
   
 \g control  \g control
   
Line 189  noop ( -- )  gforth Line 263  noop ( -- )  gforth
 call    ( #a_callee -- R:a_retaddr )    new  call    ( #a_callee -- R:a_retaddr )    new
 ""Call callee (a variant of docol with inline argument).""  ""Call callee (a variant of docol with inline argument).""
 #ifdef NO_IP  #ifdef NO_IP
   assert(0);
 INST_TAIL;  INST_TAIL;
 JUMP(a_callee);  JUMP(a_callee);
 #else  #else
Line 205  SET_IP((Xt *)a_callee); Line 280  SET_IP((Xt *)a_callee);
   
 execute ( xt -- )               core  execute ( xt -- )               core
 ""Perform the semantics represented by the execution token, @i{xt}.""  ""Perform the semantics represented by the execution token, @i{xt}.""
   #ifdef DEBUG
   fprintf(stderr, "execute %08x\n", xt);
   #endif
 #ifndef NO_IP  #ifndef NO_IP
 ip=IP;  ip=IP;
 #endif  #endif
 IF_spTOS(spTOS = sp[0]);  
 SUPER_END;  SUPER_END;
 EXEC(xt);  VM_JUMP(EXEC1(xt));
   
 perform ( a_addr -- )   gforth  perform ( a_addr -- )   gforth
 ""@code{@@ execute}.""  ""@code{@@ execute}.""
Line 218  perform ( a_addr -- ) gforth Line 295  perform ( a_addr -- ) gforth
 #ifndef NO_IP  #ifndef NO_IP
 ip=IP;  ip=IP;
 #endif  #endif
 IF_spTOS(spTOS = sp[0]);  
 SUPER_END;  SUPER_END;
 EXEC(*(Xt *)a_addr);  VM_JUMP(EXEC1(*(Xt *)a_addr));
 :  :
  @ execute ;   @ execute ;
   
Line 243  lit-perform ( #a_addr -- ) new lit_perfo Line 319  lit-perform ( #a_addr -- ) new lit_perfo
 ip=IP;  ip=IP;
 #endif  #endif
 SUPER_END;  SUPER_END;
 EXEC(*(Xt *)a_addr);  VM_JUMP(EXEC1(*(Xt *)a_addr));
   
 does-exec ( #a_cfa -- R:nest a_pfa )    new     does_exec  does-exec ( #a_cfa -- R:nest a_pfa )    new     does_exec
 #ifdef NO_IP  #ifdef NO_IP
Line 252  assert(0); Line 328  assert(0);
 #else  #else
 a_pfa = PFA(a_cfa);  a_pfa = PFA(a_cfa);
 nest = (Cell)IP;  nest = (Cell)IP;
 IF_spTOS(spTOS = sp[0]);  
 #ifdef DEBUG  #ifdef DEBUG
     {      {
       CFA_TO_NAME(a_cfa);        CFA_TO_NAME(a_cfa);
Line 298  $5 #ifdef NO_IP Line 373  $5 #ifdef NO_IP
 JUMP(a_target);  JUMP(a_target);
 #else  #else
 SET_IP((Xt *)a_target);  SET_IP((Xt *)a_target);
 INST_TAIL; NEXT_P2;  ifelse(condbranch_opt,`1',`INST_TAIL; NEXT_P2;',`/* condbranch_opt=0 */')
 #endif  #endif
 }  }
 SUPER_CONTINUE;  ifelse(condbranch_opt,`1',`SUPER_CONTINUE;',`/* condbranch_opt=0 */')
 $6  $6
   
 \+glocals  \+glocals
Line 315  $5 lp += nlocals; Line 390  $5 lp += nlocals;
 JUMP(a_target);  JUMP(a_target);
 #else  #else
 SET_IP((Xt *)a_target);  SET_IP((Xt *)a_target);
 INST_TAIL; NEXT_P2;  ifelse(condbranch_opt,`1',`INST_TAIL; NEXT_P2;',`/* condbranch_opt=0 */')
 #endif  #endif
 }  }
 SUPER_CONTINUE;  ifelse(condbranch_opt,`1',`SUPER_CONTINUE;',`/* condbranch_opt=0 */')
   
 \+  \+
 )  )
Line 336  condbranch(?branch,f --,f83 question_bra Line 411  condbranch(?branch,f --,f83 question_bra
   
 \+xconds  \+xconds
   
 ?dup-?branch    ( #a_target f -- f )    new     question_dupe_question_branch  ?dup-?branch    ( #a_target f -- S:... )        new     question_dupe_question_branch
 ""The run-time procedure compiled by @code{?DUP-IF}.""  ""The run-time procedure compiled by @code{?DUP-IF}.""
 if (f==0) {  if (f==0) {
   sp++;  
   IF_spTOS(spTOS = sp[0]);  
 #ifdef NO_IP  #ifdef NO_IP
 INST_TAIL;  INST_TAIL;
 JUMP(a_target);  JUMP(a_target);
 #else  #else
 SET_IP((Xt *)a_target);  SET_IP((Xt *)a_target);
   INST_TAIL; NEXT_P2;  
 #endif  #endif
   } else {
   sp--;
   sp[0]=f;
 }  }
 SUPER_CONTINUE;  
   
 ?dup-0=-?branch ( #a_target f -- ) new  question_dupe_zero_equals_question_branch  ?dup-0=-?branch ( #a_target f -- S:... ) new    question_dupe_zero_equals_question_branch
 ""The run-time procedure compiled by @code{?DUP-0=-IF}.""  ""The run-time procedure compiled by @code{?DUP-0=-IF}.""
 /* the approach taken here of declaring the word as having the stack  
 effect ( f -- ) and correcting for it in the branch-taken case costs a  
 few cycles in that case, but is easy to convert to a CONDBRANCH  
 invocation */  
 if (f!=0) {  if (f!=0) {
   sp--;    sp--;
     sp[0]=f;
 #ifdef NO_IP  #ifdef NO_IP
   JUMP(a_target);    JUMP(a_target);
 #else  #else
   SET_IP((Xt *)a_target);    SET_IP((Xt *)a_target);
   NEXT;  
 #endif  #endif
 }  }
 SUPER_CONTINUE;  
   
 \+  \+
 \fhas? skiploopprims 0= [IF]  \fhas? skiploopprims 0= [IF]
Line 392  condbranch((+loop),n R:nlimit R:n1 -- R: Line 461  condbranch((+loop),n R:nlimit R:n1 -- R:
 /* dependent upon two's complement arithmetic */  /* dependent upon two's complement arithmetic */
 Cell olddiff = n1-nlimit;  Cell olddiff = n1-nlimit;
 n2=n1+n;          n2=n1+n;        
 ,if ((olddiff^(olddiff+n))>=0   /* the limit is not crossed */  ,if (((olddiff^(olddiff+n))    /* the limit is not crossed */
     || (olddiff^n)>=0          /* it is a wrap-around effect */) {       &(olddiff^n))             /* OR it is a wrap-around effect */
       >=0) { /* & is used to avoid having two branches for gforth-native */
 ,:  ,:
  r> swap   r> swap
  r> r> 2dup - >r   r> r> 2dup - >r
Line 422  if (n<0) { Line 492  if (n<0) {
     newdiff = -newdiff;      newdiff = -newdiff;
 }  }
 n2=n1+n;  n2=n1+n;
 ,if (diff>=0 || newdiff<0) {  ,if (((~diff)|newdiff)<0) { /* use | to avoid two branches for gforth-native */
 ,)  ,)
   
 \+  \+
Line 446  if (nstart == nlimit) { Line 516  if (nstart == nlimit) {
     JUMP(a_target);      JUMP(a_target);
 #else  #else
     SET_IP((Xt *)a_target);      SET_IP((Xt *)a_target);
     INST_TAIL; NEXT_P2;  
 #endif  #endif
 }  }
 SUPER_CONTINUE;  
 :  :
   2dup =    2dup =
   IF   r> swap rot >r >r    IF   r> swap rot >r >r
Line 469  if (nstart >= nlimit) { Line 537  if (nstart >= nlimit) {
     JUMP(a_target);      JUMP(a_target);
 #else  #else
     SET_IP((Xt *)a_target);      SET_IP((Xt *)a_target);
     INST_TAIL; NEXT_P2;  
 #endif  #endif
 }  }
 SUPER_CONTINUE;  
 :  :
  swap 2dup   swap 2dup
  r> swap >r swap >r   r> swap >r swap >r
Line 492  if (ustart >= ulimit) { Line 558  if (ustart >= ulimit) {
 JUMP(a_target);  JUMP(a_target);
 #else  #else
 SET_IP((Xt *)a_target);  SET_IP((Xt *)a_target);
 INST_TAIL; NEXT_P2;  
 #endif  #endif
 }  }
 SUPER_CONTINUE;  
 :  :
  swap 2dup   swap 2dup
  r> swap >r swap >r   r> swap >r swap >r
Line 515  if (nstart <= nlimit) { Line 579  if (nstart <= nlimit) {
 JUMP(a_target);  JUMP(a_target);
 #else  #else
 SET_IP((Xt *)a_target);  SET_IP((Xt *)a_target);
 INST_TAIL; NEXT_P2;  
 #endif  #endif
 }  }
 SUPER_CONTINUE;  
 :  :
  swap 2dup   swap 2dup
  r> swap >r swap >r   r> swap >r swap >r
Line 538  if (ustart <= ulimit) { Line 600  if (ustart <= ulimit) {
 JUMP(a_target);  JUMP(a_target);
 #else  #else
 SET_IP((Xt *)a_target);  SET_IP((Xt *)a_target);
 INST_TAIL; NEXT_P2;  
 #endif  #endif
 }  }
 SUPER_CONTINUE;  
 :  :
  swap 2dup   swap 2dup
  r> swap >r swap >r   r> swap >r swap >r
Line 552  SUPER_CONTINUE; Line 612  SUPER_CONTINUE;
      cell+       cell+
  THEN  >r ;   THEN  >r ;
   
   (try1)  ( ... a_oldhandler a_recovery -- R:a_recovery R:a_sp R:f_fp R:c_lp R:a_oldhandler a_newhandler ) gforth paren_try1
   a_sp = sp-1;
   f_fp = fp;
   c_lp = lp;
   a_newhandler = rp-5;
   
   (throw1) ( ... wball a_handler -- ... wball ) gforth paren_throw1
   rp = a_handler;
   lp = (Address)rp[1];
   fp = (Float *)rp[2];
   sp = (Cell *)rp[3];
   #ifndef NO_IP
   ip=IP;
   #endif
   SUPER_END;
   VM_JUMP(EXEC1(*(Xt *)rp[4]));
     
   
 \+  \+
   
 \ don't make any assumptions where the return stack is!!  \ don't make any assumptions where the return stack is!!
Line 568  i' ( R:w R:w2 -- R:w R:w2 w )  gforth  i Line 646  i' ( R:w R:w2 -- R:w R:w2 w )  gforth  i
   r> r> r> dup itmp ! >r >r >r itmp @ ;    r> r> r> dup itmp ! >r >r >r itmp @ ;
 variable itmp  variable itmp
   
 j       ( R:n R:d1 -- n R:n R:d1 )              core  j       ( R:w R:w1 R:w2 -- w R:w R:w1 R:w2 )    core
 :  :
 \ rp@ cell+ cell+ cell+ @ ;  \ rp@ cell+ cell+ cell+ @ ;
   r> r> r> r> dup itmp ! >r >r >r >r itmp @ ;    r> r> r> r> dup itmp ! >r >r >r >r itmp @ ;
 [IFUNDEF] itmp variable itmp [THEN]  [IFUNDEF] itmp variable itmp [THEN]
   
 k       ( R:n R:d1 R:d2 -- n R:n R:d1 R:d2 )            gforth  k       ( R:w R:w1 R:w2 R:w3 R:w4 -- w R:w R:w1 R:w2 R:w3 R:w4 )        gforth
 :  :
 \ rp@ [ 5 cells ] Literal + @ ;  \ rp@ [ 5 cells ] Literal + @ ;
   r> r> r> r> r> r> dup itmp ! >r >r >r >r >r >r itmp @ ;    r> r> r> r> r> r> dup itmp ! >r >r >r >r >r >r itmp @ ;
Line 633  n = compare(c_addr1, u1, c_addr2, u2); Line 711  n = compare(c_addr1, u1, c_addr2, u2);
 :  :
  rot 2dup swap - >r min swap -text dup   rot 2dup swap - >r min swap -text dup
  IF  rdrop  ELSE  drop r> sgn  THEN ;   IF  rdrop  ELSE  drop r> sgn  THEN ;
   : -text ( c_addr1 u c_addr2 -- n )
    swap bounds
    ?DO  dup c@ I c@ = WHILE  1+  LOOP  drop 0
    ELSE  c@ I c@ - unloop  THEN  sgn ;
 : sgn ( n -- -1/0/1 )  : sgn ( n -- -1/0/1 )
  dup 0= IF EXIT THEN  0< 2* 1+ ;   dup 0= IF EXIT THEN  0< 2* 1+ ;
   
Line 657  c2 = toupper(c1); Line 739  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 )  gforth
   ""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 677  n = n1+n2; Line 768  n = n1+n2;
 \ lit+ / lit_plus = lit +  \ lit+ / lit_plus = lit +
   
 lit+    ( n1 #n2 -- n )         new     lit_plus  lit+    ( n1 #n2 -- n )         new     lit_plus
   #ifdef DEBUG
   fprintf(stderr, "lit+ %08x\n", n2);
   #endif
 n=n1+n2;  n=n1+n2;
   
 \ PFE-0.9.14 has it differently, but the next release will have it as follows  \ PFE-0.9.14 has it differently, but the next release will have it as follows
Line 738  n = n1*n2; Line 832  n = n1*n2;
   
 /       ( n1 n2 -- n )          core    slash  /       ( n1 n2 -- n )          core    slash
 n = n1/n2;  n = n1/n2;
   if (CHECK_DIVISION_SW && n2 == 0)
     throw(BALL_DIVZERO);
   if (CHECK_DIVISION_SW && n2 == -1 && n1 == CELL_MIN)
     throw(BALL_RESULTRANGE);
   if (FLOORED_DIV && ((n1^n2) < 0) && (n1%n2 != 0))
     n--;
 :  :
  /mod nip ;   /mod nip ;
   
 mod     ( n1 n2 -- n )          core  mod     ( n1 n2 -- n )          core
 n = n1%n2;  n = n1%n2;
   if (CHECK_DIVISION_SW && n2 == 0)
     throw(BALL_DIVZERO);
   if (CHECK_DIVISION_SW && n2 == -1 && n1 == CELL_MIN)
     throw(BALL_RESULTRANGE);
   if(FLOORED_DIV && ((n1^n2) < 0) && n!=0) n += n2;
 :  :
  /mod drop ;   /mod drop ;
   
 /mod    ( n1 n2 -- n3 n4 )              core            slash_mod  /mod    ( n1 n2 -- n3 n4 )              core            slash_mod
 n4 = n1/n2;  n4 = n1/n2;
 n3 = n1%n2; /* !! is this correct? look into C standard! */  n3 = n1%n2; /* !! is this correct? look into C standard! */
   if (CHECK_DIVISION_SW && n2 == 0)
     throw(BALL_DIVZERO);
   if (CHECK_DIVISION_SW && n2 == -1 && n1 == CELL_MIN)
     throw(BALL_RESULTRANGE);
   if (FLOORED_DIV && ((n1^n2) < 0) && n3!=0) {
     n4--;
     n3+=n2;
   }
 :  :
  >r s>d r> fm/mod ;   >r s>d r> fm/mod ;
   
   */mod   ( n1 n2 n3 -- n4 n5 )   core    star_slash_mod
   ""n1*n2=n3*n5+n4, with the intermediate result (n1*n2) being double.""
   #ifdef BUGGY_LL_MUL
   DCell d = mmul(n1,n2);
   #else
   DCell d = (DCell)n1 * (DCell)n2;
   #endif
   #ifdef ASM_SM_SLASH_REM
   ASM_SM_SLASH_REM(DLO(d), DHI(d), n3, n4, n5);
   if (FLOORED_DIV && ((DHI(d)^n3)<0) && n4!=0) {
     if (CHECK_DIVISION && n5 == CELL_MIN)
       throw(BALL_RESULTRANGE);
     n5--;
     n4+=n3;
   }
   #else
   DCell r = FLOORED_DIV ? fmdiv(d,n3) : smdiv(d,n3);
   n4=DHI(r);
   n5=DLO(r);
   #endif
   :
    >r m* r> fm/mod ;
   
   */      ( n1 n2 n3 -- n4 )      core    star_slash
   ""n4=(n1*n2)/n3, with the intermediate result being double.""
   #ifdef BUGGY_LL_MUL
   DCell d = mmul(n1,n2);
   #else
   DCell d = (DCell)n1 * (DCell)n2;
   #endif
   #ifdef ASM_SM_SLASH_REM
   Cell remainder;
   ASM_SM_SLASH_REM(DLO(d), DHI(d), n3, remainder, n4);
   if (FLOORED_DIV && ((DHI(d)^n3)<0) && remainder!=0) {
     if (CHECK_DIVISION && n4 == CELL_MIN)
       throw(BALL_RESULTRANGE);
     n4--;
   }
   #else
   DCell r = FLOORED_DIV ? fmdiv(d,n3) : smdiv(d,n3);
   n4=DLO(r);
   #endif
   :
    */mod nip ;
   
 2*      ( n1 -- n2 )            core            two_star  2*      ( n1 -- n2 )            core            two_star
 ""Shift left by 1; also works on unsigned numbers""  ""Shift left by 1; also works on unsigned numbers""
 n2 = 2*n1;  n2 = 2*n1;
Line 764  division by 2 (note that @code{/} not ne Line 922  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 ;
   
 fm/mod  ( d1 n1 -- n2 n3 )              core            f_m_slash_mod  fm/mod  ( d1 n1 -- n2 n3 )              core            f_m_slash_mod
 ""Floored division: @i{d1} = @i{n3}*@i{n1}+@i{n2}, @i{n1}>@i{n2}>=0 or 0>=@i{n2}>@i{n1}.""  ""Floored division: @i{d1} = @i{n3}*@i{n1}+@i{n2}, @i{n1}>@i{n2}>=0 or 0>=@i{n2}>@i{n1}.""
 #ifdef BUGGY_LONG_LONG  #ifdef ASM_SM_SLASH_REM
 DCell r = fmdiv(d1,n1);  ASM_SM_SLASH_REM(DLO(d1), DHI(d1), n1, n2, n3);
 n2=r.hi;  if (((DHI(d1)^n1)<0) && n2!=0) {
 n3=r.lo;    if (CHECK_DIVISION && n3 == CELL_MIN)
 #else      throw(BALL_RESULTRANGE);
 /* assumes that the processor uses either floored or symmetric division */  
 n3 = d1/n1;  
 n2 = d1%n1;  
 /* note that this 1%-3>0 is optimized by the compiler */  
 if (1%-3>0 && (d1<0) != (n1<0) && n2!=0) {  
   n3--;    n3--;
   n2+=n1;    n2+=n1;
 }  }
 #endif  #else /* !defined(ASM_SM_SLASH_REM) */
   DCell r = fmdiv(d1,n1);
   n2=DHI(r);
   n3=DLO(r);
   #endif /* !defined(ASM_SM_SLASH_REM) */
 :  :
  dup >r dup 0< IF  negate >r dnegate r>  THEN   dup >r dup 0< IF  negate >r dnegate r>  THEN
  over       0< IF  tuck + swap  THEN   over       0< IF  tuck + swap  THEN
Line 793  if (1%-3>0 && (d1<0) != (n1<0) && n2!=0) Line 950  if (1%-3>0 && (d1<0) != (n1<0) && n2!=0)
   
 sm/rem  ( d1 n1 -- n2 n3 )              core            s_m_slash_rem  sm/rem  ( d1 n1 -- n2 n3 )              core            s_m_slash_rem
 ""Symmetric division: @i{d1} = @i{n3}*@i{n1}+@i{n2}, sign(@i{n2})=sign(@i{d1}) or 0.""  ""Symmetric division: @i{d1} = @i{n3}*@i{n1}+@i{n2}, sign(@i{n2})=sign(@i{d1}) or 0.""
 #ifdef BUGGY_LONG_LONG  #ifdef ASM_SM_SLASH_REM
   ASM_SM_SLASH_REM(DLO(d1), DHI(d1), n1, n2, n3);
   #else /* !defined(ASM_SM_SLASH_REM) */
 DCell r = smdiv(d1,n1);  DCell r = smdiv(d1,n1);
 n2=r.hi;  n2=DHI(r);
 n3=r.lo;  n3=DLO(r);
 #else  #endif /* !defined(ASM_SM_SLASH_REM) */
 /* assumes that the processor uses either floored or symmetric division */  
 n3 = d1/n1;  
 n2 = d1%n1;  
 /* note that this 1%-3<0 is optimized by the compiler */  
 if (1%-3<0 && (d1<0) != (n1<0) && n2!=0) {  
   n3++;  
   n2-=n1;  
 }  
 #endif  
 :  :
  over >r dup >r abs -rot   over >r dup >r abs -rot
  dabs rot um/mod   dabs rot um/mod
Line 814  if (1%-3<0 && (d1<0) != (n1<0) && n2!=0) Line 964  if (1%-3<0 && (d1<0) != (n1<0) && n2!=0)
  r>        0< IF  swap negate swap  THEN ;   r>        0< IF  swap negate swap  THEN ;
   
 m*      ( n1 n2 -- d )          core    m_star  m*      ( n1 n2 -- d )          core    m_star
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_MUL
 d = mmul(n1,n2);  d = mmul(n1,n2);
 #else  #else
 d = (DCell)n1 * (DCell)n2;  d = (DCell)n1 * (DCell)n2;
Line 826  d = (DCell)n1 * (DCell)n2; Line 976  d = (DCell)n1 * (DCell)n2;
   
 um*     ( u1 u2 -- ud )         core    u_m_star  um*     ( u1 u2 -- ud )         core    u_m_star
 /* use u* as alias */  /* use u* as alias */
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_MUL
 ud = ummul(u1,u2);  ud = ummul(u1,u2);
 #else  #else
 ud = (UDCell)u1 * (UDCell)u2;  ud = (UDCell)u1 * (UDCell)u2;
Line 842  ud = (UDCell)u1 * (UDCell)u2; Line 992  ud = (UDCell)u1 * (UDCell)u2;
   
 um/mod  ( ud u1 -- u2 u3 )              core    u_m_slash_mod  um/mod  ( ud u1 -- u2 u3 )              core    u_m_slash_mod
 ""ud=u3*u1+u2, u1>u2>=0""  ""ud=u3*u1+u2, u1>u2>=0""
 #ifdef BUGGY_LONG_LONG  #ifdef ASM_UM_SLASH_MOD
   ASM_UM_SLASH_MOD(DLO(ud), DHI(ud), u1, u2, u3);
   #else /* !defined(ASM_UM_SLASH_MOD) */
 UDCell r = umdiv(ud,u1);  UDCell r = umdiv(ud,u1);
 u2=r.hi;  u2=DHI(r);
 u3=r.lo;  u3=DLO(r);
 #else  #endif /* !defined(ASM_UM_SLASH_MOD) */
 u3 = ud/u1;  
 u2 = ud%u1;  
 #endif  
 :  :
    0 swap [ 8 cells 1 + ] literal 0     0 swap [ 8 cells 1 + ] literal 0
    ?DO /modstep     ?DO /modstep
Line 861  u2 = ud%u1; Line 1010  u2 = ud%u1;
    and >r >r 2dup d+ swap r> + swap r> ;     and >r >r 2dup d+ swap r> + swap r> ;
   
 m+      ( d1 n -- d2 )          double          m_plus  m+      ( d1 n -- d2 )          double          m_plus
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_ADD
 d2.lo = d1.lo+n;  DLO_IS(d2, DLO(d1)+n);
 d2.hi = d1.hi - (n<0) + (d2.lo<d1.lo);  DHI_IS(d2, DHI(d1) - (n<0) + (DLO(d2)<DLO(d1)));
 #else  #else
 d2 = d1+n;  d2 = d1+n;
 #endif  #endif
Line 871  d2 = d1+n; Line 1020  d2 = d1+n;
  s>d d+ ;   s>d d+ ;
   
 d+      ( d1 d2 -- d )          double  d_plus  d+      ( d1 d2 -- d )          double  d_plus
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_ADD
 d.lo = d1.lo+d2.lo;  DLO_IS(d, DLO(d1) + DLO(d2));
 d.hi = d1.hi + d2.hi + (d.lo<d1.lo);  DHI_IS(d, DHI(d1) + DHI(d2) + (d.lo<DLO(d1)));
 #else  #else
 d = d1+d2;  d = d1+d2;
 #endif  #endif
Line 881  d = d1+d2; Line 1030  d = d1+d2;
  rot + >r tuck + swap over u> r> swap - ;   rot + >r tuck + swap over u> r> swap - ;
   
 d-      ( d1 d2 -- d )          double          d_minus  d-      ( d1 d2 -- d )          double          d_minus
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_ADD
 d.lo = d1.lo - d2.lo;  DLO_IS(d, DLO(d1) - DLO(d2));
 d.hi = d1.hi-d2.hi-(d1.lo<d2.lo);  DHI_IS(d, DHI(d1)-DHI(d2)-(DLO(d1)<DLO(d2)));
 #else  #else
 d = d1-d2;  d = d1-d2;
 #endif  #endif
Line 892  d = d1-d2; Line 1041  d = d1-d2;
   
 dnegate ( d1 -- d2 )            double  d_negate  dnegate ( d1 -- d2 )            double  d_negate
 /* use dminus as alias */  /* use dminus as alias */
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_ADD
 d2 = dnegate(d1);  d2 = dnegate(d1);
 #else  #else
 d2 = -d1;  d2 = -d1;
Line 902  d2 = -d1; Line 1051  d2 = -d1;
   
 d2*     ( d1 -- d2 )            double          d_two_star  d2*     ( d1 -- d2 )            double          d_two_star
 ""Shift left by 1; also works on unsigned numbers""  ""Shift left by 1; also works on unsigned numbers""
 #ifdef BUGGY_LONG_LONG  d2 = DLSHIFT(d1,1);
 d2.lo = d1.lo<<1;  
 d2.hi = (d1.hi<<1) | (d1.lo>>(CELL_BITS-1));  
 #else  
 d2 = 2*d1;  
 #endif  
 :  :
  2dup d+ ;   2dup d+ ;
   
 d2/     ( d1 -- d2 )            double          d_two_slash  d2/     ( d1 -- d2 )            double          d_two_slash
 ""Arithmetic shift right by 1.  For signed numbers this is a floored  ""Arithmetic shift right by 1.  For signed numbers this is a floored
 division by 2.""  division by 2.""
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_SHIFT
 d2.hi = d1.hi>>1;  DHI_IS(d2, DHI(d1)>>1);
 d2.lo= (d1.lo>>1) | (d1.hi<<(CELL_BITS-1));  DLO_IS(d2, (DLO(d1)>>1) | (DHI(d1)<<(CELL_BITS-1)));
 #else  #else
 d2 = d1>>1;  d2 = d1>>1;
 #endif  #endif
Line 942  w2 = ~w1; Line 1086  w2 = ~w1;
   
 rshift  ( u1 n -- u2 )          core    r_shift  rshift  ( u1 n -- u2 )          core    r_shift
 ""Logical shift right by @i{n} bits.""  ""Logical shift right by @i{n} bits.""
   u2 = u1>>n;  #ifdef BROKEN_SHIFT
     u2 = rshift(u1, n);
   #else
     u2 = u1 >> n;
   #endif
 :  :
     0 ?DO 2/ MAXI and LOOP ;      0 ?DO 2/ MAXI and LOOP ;
   
 lshift  ( u1 n -- u2 )          core    l_shift  lshift  ( u1 n -- u2 )          core    l_shift
   u2 = u1<<n;  #ifdef BROKEN_SHIFT
     u2 = lshift(u1, n);
   #else
     u2 = u1 << n;
   #endif
 :  :
     0 ?DO 2* LOOP ;      0 ?DO 2* LOOP ;
   
Line 1011  comparisons(u, u1 u2, u_, u1, u2, gforth Line 1163  comparisons(u, u1 u2, u_, u1, u2, gforth
 \ dcomparisons(prefix, args, prefix, arg1, arg2, wordsets...)  \ dcomparisons(prefix, args, prefix, arg1, arg2, wordsets...)
 define(dcomparisons,  define(dcomparisons,
 $1=     ( $2 -- f )             $6      $3equals  $1=     ( $2 -- f )             $6      $3equals
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_CMP
 f = FLAG($4.lo==$5.lo && $4.hi==$5.hi);  f = FLAG($4.lo==$5.lo && $4.hi==$5.hi);
 #else  #else
 f = FLAG($4==$5);  f = FLAG($4==$5);
 #endif  #endif
   
 $1<>    ( $2 -- f )             $7      $3not_equals  $1<>    ( $2 -- f )             $7      $3not_equals
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_CMP
 f = FLAG($4.lo!=$5.lo || $4.hi!=$5.hi);  f = FLAG($4.lo!=$5.lo || $4.hi!=$5.hi);
 #else  #else
 f = FLAG($4!=$5);  f = FLAG($4!=$5);
 #endif  #endif
   
 $1<     ( $2 -- f )             $8      $3less_than  $1<     ( $2 -- f )             $8      $3less_than
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_CMP
 f = FLAG($4.hi==$5.hi ? $4.lo<$5.lo : $4.hi<$5.hi);  f = FLAG($4.hi==$5.hi ? $4.lo<$5.lo : $4.hi<$5.hi);
 #else  #else
 f = FLAG($4<$5);  f = FLAG($4<$5);
 #endif  #endif
   
 $1>     ( $2 -- f )             $9      $3greater_than  $1>     ( $2 -- f )             $9      $3greater_than
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_CMP
 f = FLAG($4.hi==$5.hi ? $4.lo>$5.lo : $4.hi>$5.hi);  f = FLAG($4.hi==$5.hi ? $4.lo>$5.lo : $4.hi>$5.hi);
 #else  #else
 f = FLAG($4>$5);  f = FLAG($4>$5);
 #endif  #endif
   
 $1<=    ( $2 -- f )             gforth  $3less_or_equal  $1<=    ( $2 -- f )             gforth  $3less_or_equal
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_CMP
 f = FLAG($4.hi==$5.hi ? $4.lo<=$5.lo : $4.hi<=$5.hi);  f = FLAG($4.hi==$5.hi ? $4.lo<=$5.lo : $4.hi<=$5.hi);
 #else  #else
 f = FLAG($4<=$5);  f = FLAG($4<=$5);
 #endif  #endif
   
 $1>=    ( $2 -- f )             gforth  $3greater_or_equal  $1>=    ( $2 -- f )             gforth  $3greater_or_equal
 #ifdef BUGGY_LONG_LONG  #ifdef BUGGY_LL_CMP
 f = FLAG($4.hi==$5.hi ? $4.lo>=$5.lo : $4.hi>=$5.hi);  f = FLAG($4.hi==$5.hi ? $4.lo>=$5.lo : $4.hi>=$5.hi);
 #else  #else
 f = FLAG($4>=$5);  f = FLAG($4>=$5);
Line 1080  useraddr ( #u -- a_addr ) new Line 1232  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=(Address)a_addr;
 :  :
  up ! ;   up ! ;
 Variable UP  Variable UP
   
 sp@     ( -- a_addr )           gforth          sp_fetch  sp@     ( S:... -- a_addr )             gforth          sp_fetch
 a_addr = sp+1;  a_addr = sp;
   
 sp!     ( a_addr -- )           gforth          sp_store  sp!     ( a_addr -- S:... )             gforth          sp_store
 sp = a_addr;  sp = a_addr;
 /* works with and without spTOS caching */  
   
 rp@     ( -- a_addr )           gforth          rp_fetch  rp@     ( -- a_addr )           gforth          rp_fetch
 a_addr = rp;  a_addr = rp;
Line 1100  rp = a_addr; Line 1251  rp = a_addr;
   
 \+floating  \+floating
   
 fp@     ( -- f_addr )   gforth  fp_fetch  fp@     ( f:... -- f_addr )     gforth  fp_fetch
 f_addr = fp;  f_addr = fp;
   
 fp!     ( f_addr -- )   gforth  fp_store  fp!     ( f_addr -- f:... )     gforth  fp_store
 fp = f_addr;  fp = f_addr;
   
 \+  \+
Line 1176  tuck ( w1 w2 -- w2 w1 w2 ) core-ext Line 1327  tuck ( w1 w2 -- w2 w1 w2 ) core-ext
 :  :
  swap over ;   swap over ;
   
 ?dup    ( w -- w )                      core    question_dupe  ?dup    ( w -- S:... w )        core    question_dupe
 ""Actually the stack effect is: @code{( w -- 0 | w w )}.  It performs a  ""Actually the stack effect is: @code{( w -- 0 | w w )}.  It performs a
 @code{dup} if w is nonzero.""  @code{dup} if w is nonzero.""
 if (w!=0) {  if (w!=0) {
   IF_spTOS(*sp-- = w;)  
 #ifndef USE_TOS  
   *--sp = w;    *--sp = w;
 #endif  
 }  }
 :  :
  dup IF dup THEN ;   dup IF dup THEN ;
   
 pick    ( u -- w )                      core-ext  pick    ( S:... u -- S:... w )          core-ext
 ""Actually the stack effect is @code{ x0 ... xu u -- x0 ... xu x0 }.""  ""Actually the stack effect is @code{ x0 ... xu u -- x0 ... xu x0 }.""
 w = sp[u+1];  w = sp[u];
 :  :
  1+ cells sp@ + @ ;   1+ cells sp@ + @ ;
   
Line 1362  for (; f83name1 != NULL; f83name1 = (str Line 1510  for (; f83name1 != NULL; f83name1 = (str
       memcasecmp(c_addr, f83name1->name, u)== 0 /* or inline? */)        memcasecmp(c_addr, f83name1->name, u)== 0 /* or inline? */)
     break;      break;
 f83name2=f83name1;  f83name2=f83name1;
   #ifdef DEBUG
   fprintf(stderr, "F83find ");
   fwrite(c_addr, u, 1, stderr);
   fprintf(stderr, " found %08x\n", f83name2); 
   #endif
 :  :
     BEGIN  dup WHILE  (find-samelen)  dup  WHILE      BEGIN  dup WHILE  (find-samelen)  dup  WHILE
         >r 2dup r@ cell+ char+ capscomp  0=          >r 2dup r@ cell+ char+ capscomp  0=
Line 1391  longname2=listlfind(c_addr, u, longname1 Line 1544  longname2=listlfind(c_addr, u, longname1
     REPEAT  THEN  nip nip ;      REPEAT  THEN  nip nip ;
 : (findl-samelen) ( u longname1 -- u longname2/0 )  : (findl-samelen) ( u longname1 -- u longname2/0 )
     BEGIN  2dup cell+ @ lcount-mask and <> WHILE  @  dup 0= UNTIL  THEN ;      BEGIN  2dup cell+ @ lcount-mask and <> WHILE  @  dup 0= UNTIL  THEN ;
   : capscomp ( c_addr1 u c_addr2 -- n )
    swap bounds
    ?DO  dup c@ I c@ <>
        IF  dup c@ toupper I c@ toupper =
        ELSE  true  THEN  WHILE  1+  LOOP  drop 0
    ELSE  c@ toupper I c@ toupper - unloop  THEN  sgn ;
   : sgn ( n -- -1/0/1 )
    dup 0= IF EXIT THEN  0< 2* 1+ ;
   
 \+hash  \+hash
   
Line 1484  n=1; Line 1645  n=1;
   
 \g hostos  \g hostos
   
 key-file        ( wfileid -- n )                gforth  paren_key_file  key-file        ( wfileid -- c )                gforth  paren_key_file
   ""Read one character @i{c} from @i{wfileid}.  This word disables
   buffering for @i{wfileid}.  If you want to read characters from a
   terminal in non-canonical (raw) mode, you have to put the terminal in
   non-canonical mode yourself (using the C interface); the exception is
   @code{stdin}: Gforth automatically puts it into non-canonical mode.""
 #ifdef HAS_FILE  #ifdef HAS_FILE
 fflush(stdout);  fflush(stdout);
 n = key((FILE*)wfileid);  c = key((FILE*)wfileid);
 #else  #else
 n = key(stdin);  c = key(stdin);
 #endif  #endif
   
 key?-file       ( wfileid -- n )                facility        key_q_file  key?-file       ( wfileid -- f )                gforth  key_q_file
   ""@i{f} is true if at least one character can be read from @i{wfileid}
   without blocking.  If you also want to use @code{read-file} or
   @code{read-line} on the file, you have to call @code{key?-file} or
   @code{key-file} first (these two words disable buffering).""
 #ifdef HAS_FILE  #ifdef HAS_FILE
 fflush(stdout);  fflush(stdout);
 n = key_query((FILE*)wfileid);  f = key_query((FILE*)wfileid);
 #else  #else
 n = key_query(stdin);  f = key_query(stdin);
 #endif  #endif
   
 \+os  
   
 stdin   ( -- wfileid )  gforth  stdin   ( -- wfileid )  gforth
   ""The standard input file of the Gforth process.""
 wfileid = (Cell)stdin;  wfileid = (Cell)stdin;
   
 stdout  ( -- wfileid )  gforth  stdout  ( -- wfileid )  gforth
   ""The standard output file of the Gforth process.""
 wfileid = (Cell)stdout;  wfileid = (Cell)stdout;
   
 stderr  ( -- wfileid )  gforth  stderr  ( -- wfileid )  gforth
   ""The standard error output file of the Gforth process.""
 wfileid = (Cell)stderr;  wfileid = (Cell)stderr;
   
   \+os
   
 form    ( -- urows ucols )      gforth  form    ( -- urows ucols )      gforth
 ""The number of lines and columns in the terminal. These numbers may change  ""The number of lines and columns in the terminal. These numbers may
 with the window size.""  change with the window size.  Note that it depends on the OS whether
   this reflects the actual size and changes with the window size
   (currently only on Unix-like OSs).  On other OSs you just get a
   default, and can tell Gforth the terminal size by setting the
   environment variables @code{COLUMNS} and @code{LINES} before starting
   Gforth.""
 /* we could block SIGWINCH here to get a consistent size, but I don't  /* we could block SIGWINCH here to get a consistent size, but I don't
  think this is necessary or always beneficial */   think this is necessary or always beneficial */
 urows=rows;  urows=rows;
 ucols=cols;  ucols=cols;
   
   wcwidth ( u -- n )      gforth
   ""The number of fixed-width characters per unicode character u""
   #ifdef HAVE_WCWIDTH
   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
 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 1529  supported on your machine (take a look a Line 1715  supported on your machine (take a look a
 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;
 return (Label *)n;  return (Label *)n;
   
 (system)        ( c_addr u -- wretval wior )    gforth  paren_system  (system)        ( c_addr u -- wretval wior )    gforth  paren_system
 #ifndef MSDOS  wretval = gforth_system(c_addr, u);  
 int old_tp=terminal_prepped;  
 deprep_terminal();  
 #endif  
 wretval=system(cstr(c_addr,u,1)); /* ~ expansion on first part of string? */  
 wior = IOR(wretval==-1 || (wretval==127 && errno != 0));  wior = IOR(wretval==-1 || (wretval==127 && errno != 0));
 #ifndef MSDOS  
 if (old_tp)  
   prep_terminal();  
 #endif  
   
 getenv  ( c_addr1 u1 -- c_addr2 u2 )    gforth  getenv  ( c_addr1 u1 -- c_addr2 u2 )    gforth
 ""The string @i{c-addr1 u1} specifies an environment variable. The string @i{c-addr2 u2}  ""The string @i{c-addr1 u1} specifies an environment variable. The string @i{c-addr2 u2}
Line 1553  is the host operating system's expansion Line 1731  is the host operating system's expansion
 environment variable does not exist, @i{c-addr2 u2} specifies a string 0 characters  environment variable does not exist, @i{c-addr2 u2} specifies a string 0 characters
 in length.""  in length.""
 /* close ' to keep fontify happy */  /* close ' to keep fontify happy */
 c_addr2 = getenv(cstr(c_addr1,u1,1));  c_addr2 = (Char *)getenv(cstr(c_addr1,u1,1));
 u2 = (c_addr2 == NULL ? 0 : strlen(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 */
   
Line 1588  nhour =ltime->tm_hour; Line 1767  nhour =ltime->tm_hour;
 nmin  =ltime->tm_min;  nmin  =ltime->tm_min;
 nsec  =ltime->tm_sec;  nsec  =ltime->tm_sec;
   
 ms      ( n -- )        facility-ext  ms      ( u -- )        facility-ext
 ""Wait at least @i{n} milli-second.""  ""Wait at least @i{n} milli-second.""
 struct timeval timeout;  gforth_ms(u);
 timeout.tv_sec=n/1000;  
 timeout.tv_usec=1000*(n%1000);  
 (void)select(0,0,0,0,&timeout);  
   
 allocate        ( u -- a_addr wior )    memory  allocate        ( u -- a_addr wior )    memory
 ""Allocate @i{u} address units of contiguous data space. The initial  ""Allocate @i{u} address units of contiguous data space. The initial
Line 1628  if (a_addr1==NULL) Line 1804  if (a_addr1==NULL)
 else  else
   a_addr2 = (Cell *)realloc(a_addr1, u);    a_addr2 = (Cell *)realloc(a_addr1, u);
 wior = IOR(a_addr2==NULL);      /* !! Define a return code */  wior = IOR(a_addr2==NULL);      /* !! Define a return code */
   if (a_addr2==NULL)
     a_addr2 = a_addr1;
   
 strerror        ( n -- c_addr u )       gforth  strerror        ( n -- c_addr u )       gforth
 c_addr = strerror(n);  c_addr = (Char *)strerror(n);
 u = strlen(c_addr);  u = strlen((char *)c_addr);
   
 strsignal       ( n -- c_addr u )       gforth  strsignal       ( n -- c_addr u )       gforth
 c_addr = (Address)strsignal(n);  c_addr = (Char *)strsignal(n);
 u = strlen(c_addr);  u = strlen((char *)c_addr);
   
 call-c  ( w -- )        gforth  call_c  call-c  ( ... w -- ... )        gforth  call_c
 ""Call the C function pointed to by @i{w}. The C function has to  ""Call the C function pointed to by @i{w}. The C function has to
 access the stack itself. The stack pointers are exported in the global  access the stack itself. The stack pointers are exported in the global
 variables @code{SP} and @code{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);  IF_fpTOS(fp[0]=fpTOS);
 FP=fp;  gforth_FP=fp;
 SP=sp;  gforth_SP=sp;
   gforth_RP=rp;
   gforth_LP=lp;
   #ifdef HAS_LINKBACK
 ((void (*)())w)();  ((void (*)())w)();
 sp=SP;  #else
 fp=FP;  ((void (*)(void *))w)(gforth_pointers);
 IF_spTOS(spTOS=sp[0]);  #endif
   sp=gforth_SP;
   fp=gforth_FP;
   rp=gforth_RP;
   lp=gforth_LP;
 IF_fpTOS(fpTOS=fp[0]);  IF_fpTOS(fpTOS=fp[0]);
   
 \+  \+
Line 1659  close-file ( wfileid -- wior )  file clo Line 1844  close-file ( wfileid -- wior )  file clo
 wior = IOR(fclose((FILE *)wfileid)==EOF);  wior = IOR(fclose((FILE *)wfileid)==EOF);
   
 open-file       ( c_addr u wfam -- wfileid wior )       file    open_file  open-file       ( c_addr u wfam -- wfileid wior )       file    open_file
 wfileid = (Cell)fopen(tilde_cstr(c_addr, u, 1), fileattr[wfam]);  wfileid = opencreate_file(tilde_cstr(c_addr,u,1), wfam, 0, &wior);
 wior =  IOR(wfileid == 0);  
   
 create-file     ( c_addr u wfam -- wfileid wior )       file    create_file  create-file     ( c_addr u wfam -- wfileid wior )       file    create_file
 Cell    fd;  wfileid = opencreate_file(tilde_cstr(c_addr,u,1), wfam, O_CREAT|O_TRUNC, &wior);
 fd = open(tilde_cstr(c_addr, u, 1), O_CREAT|O_TRUNC|ufileattr[wfam], 0666);  
 if (fd != -1) {  
   wfileid = (Cell)fdopen(fd, fileattr[wfam]);  
   wior = IOR(wfileid == 0);  
 } else {  
   wfileid = 0;  
   wior = IOR(1);  
 }  
   
 delete-file     ( c_addr u -- wior )            file    delete_file  delete-file     ( c_addr u -- wior )            file    delete_file
 wior = IOR(unlink(tilde_cstr(c_addr, u, 1))==-1);  wior = IOR(unlink(tilde_cstr(c_addr, u, 1))==-1);
Line 1699  wior = IOR(ftruncate(fileno((FILE *)wfil Line 1875  wior = IOR(ftruncate(fileno((FILE *)wfil
 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;
Line 1774  if(dent == NULL) { Line 1952  if(dent == NULL) {
   u2 = 0;    u2 = 0;
   flag = 0;    flag = 0;
 } else {  } else {
   u2 = strlen(dent->d_name);    u2 = strlen((char *)dent->d_name);
   if(u2 > u1) {    if(u2 > u1) {
     u2 = u1;      u2 = u1;
     wior = -512-ENAMETOOLONG;      wior = -512-ENAMETOOLONG;
Line 1791  char * string = cstr(c_addr1, u1, 1); Line 1969  char * string = cstr(c_addr1, u1, 1);
 char * pattern = cstr(c_addr2, u2, 0);  char * pattern = cstr(c_addr2, u2, 0);
 flag = FLAG(!fnmatch(pattern, string, 0));  flag = FLAG(!fnmatch(pattern, string, 0));
   
   set-dir ( c_addr u -- wior )    gforth set_dir
   ""Change the current directory to @i{c-addr, u}.
   Return an error if this is not possible""
   wior = IOR(chdir(tilde_cstr(c_addr, u, 1)));
   
   get-dir ( c_addr1 u1 -- c_addr2 u2 )    gforth get_dir
   ""Store the current directory in the buffer specified by @i{c-addr1, u1}.
   If the buffer size is not sufficient, return 0 0""
   c_addr2 = (Char *)getcwd((char *)c_addr1, u1);
   if(c_addr2 != NULL) {
     u2 = strlen((char *)c_addr2);
   } else {
     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
Line 1804  char newline[] = { Line 2001  char newline[] = {
 '\r','\n'  '\r','\n'
 #endif  #endif
 };  };
 c_addr=newline;  c_addr=(Char *)newline;
 u=sizeof(newline);  u=sizeof(newline);
 :  :
  "newline count ;   "newline count ;
Line 1833  dsystem = timeval2us(&usage.ru_stime); Line 2030  dsystem = timeval2us(&usage.ru_stime);
 struct timeval time1;  struct timeval time1;
 gettimeofday(&time1,NULL);  gettimeofday(&time1,NULL);
 duser = timeval2us(&time1);  duser = timeval2us(&time1);
 #ifndef BUGGY_LONG_LONG  dsystem = DZERO;
 dsystem = (DCell)0;  
 #else  
 dsystem=(DCell){0,0};  
 #endif  
 #endif  #endif
   
 \+  \+
Line 1849  dsystem=(DCell){0,0}; Line 2042  dsystem=(DCell){0,0};
 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_LONG_LONG  #ifdef BUGGY_LL_D2F
 extern double ldexp(double x, int exp);  extern double ldexp(double x, int exp);
 if (d.hi<0) {  if (DHI(d)<0) {
   #ifdef BUGGY_LL_ADD
   DCell d2=dnegate(d);    DCell d2=dnegate(d);
   r = -(ldexp((Float)d2.hi,CELL_BITS) + (Float)d2.lo);  #else
     DCell d2=-d;
   #endif
     r = -(ldexp((Float)DHI(d2),CELL_BITS) + (Float)DLO(d2));
 } else  } else
   r = ldexp((Float)d.hi,CELL_BITS) + (Float)d.lo;    r = ldexp((Float)DHI(d),CELL_BITS) + (Float)DLO(d);
 #else  #else
 r = d;  r = d;
 #endif  #endif
Line 1865  f>d ( r -- d )  float f_to_d Line 2065  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 1923  f** ( r1 r2 -- r3 ) float-ext f_star_sta Line 2126  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 1953  floor ( r1 -- r2 ) float Line 2168  floor ( r1 -- r2 ) float
 /* !! unclear wording */  /* !! unclear wording */
 r2 = floor(r1);  r2 = floor(r1);
   
 fround  ( r1 -- r2 )    gforth  f_round  fround  ( r1 -- r2 )    float   f_round
 ""Round to the nearest integral value.""  ""Round to the nearest integral value.""
 r2 = rint(r1);  r2 = rint(r1);
   
Line 1976  int flag; Line 2191  int flag;
 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(sig);  siglen=strlen((char *)sig);
 if (siglen>u) /* happens in glibc-2.1.3 if 999.. is rounded up */  if (siglen>u) /* happens in glibc-2.1.3 if 999.. is rounded up */
   siglen=u;    siglen=u;
   if (!f2) /* workaround Cygwin trailing 0s for Inf and Nan */
     for (; sig[siglen-1]=='0'; siglen--);
       ;
 memcpy(c_addr,sig,siglen);  memcpy(c_addr,sig,siglen);
 memset(c_addr+siglen,f2?'0':' ',u-siglen);  memset(c_addr+siglen,f2?'0':' ',u-siglen);
   
 >float  ( c_addr u -- flag )    float   to_float  >float  ( c_addr u -- f:... flag )      float   to_float
 ""Actual stack effect: ( c_addr u -- r t | f ).  Attempt to convert the  ""Actual stack effect: ( c_addr u -- r t | f ).  Attempt to convert the
 character string @i{c-addr u} to internal floating-point  character string @i{c-addr u} to internal floating-point
 representation. If the string represents a valid floating-point number  representation. If the string represents a valid floating-point number
Line 1994  case and represents the floating-point n Line 2213  case and represents the floating-point n
 Float r;  Float r;
 flag = to_float(c_addr, u, &r);  flag = to_float(c_addr, u, &r);
 if (flag) {  if (flag) {
   IF_fpTOS(fp[0] = fpTOS);    fp--;
   fp += -1;    fp[0]=r;
   fpTOS = r;  
 }  }
   
 fabs    ( r1 -- r2 )    float-ext       f_abs  fabs    ( r1 -- r2 )    float-ext       f_abs
Line 2222  f>l ( r -- ) gforth f_to_l Line 2440  f>l ( r -- ) gforth f_to_l
 lp -= sizeof(Float);  lp -= sizeof(Float);
 *(Float *)lp = r;  *(Float *)lp = r;
   
 fpick   ( u -- r )              gforth  fpick   ( f:... u -- f:... r )          gforth
 ""Actually the stack effect is @code{ r0 ... ru u -- r0 ... ru r0 }.""  ""Actually the stack effect is @code{ r0 ... ru u -- r0 ... ru r0 }.""
 r = fp[u+1]; /* +1, because update of fp happens before this fragment */  r = fp[u];
 :  :
  floats fp@ + f@ ;   floats fp@ + f@ ;
   
Line 2236  r = fp[u+1]; /* +1, because update of fp Line 2454  r = fp[u+1]; /* +1, because update of fp
 \g syslib  \g syslib
   
 open-lib        ( c_addr1 u1 -- u2 )    gforth  open_lib  open-lib        ( c_addr1 u1 -- u2 )    gforth  open_lib
 #if defined(HAVE_LIBDL) || defined(HAVE_DLOPEN)  u2 = gforth_dlopen(c_addr1, u1);
 #ifndef RTLD_GLOBAL  
 #define RTLD_GLOBAL 0  
 #endif  
 u2=(UCell) dlopen(cstr(c_addr1, u1, 1), RTLD_GLOBAL | RTLD_LAZY);  
 #else  
 #  ifdef _WIN32  
 u2 = (Cell) GetModuleHandle(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 defined(HAVE_LIBDL) || defined(HAVE_DLOPEN)  #ifdef HAVE_LIBLTDL
   u3 = (UCell) lt_dlsym((lt_dlhandle)u2, cstr(c_addr1, u1, 1));
   #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));
 #else  #else
 #  ifdef _WIN32  #  ifdef _WIN32
Line 2262  u3 = 0; Line 2470  u3 = 0;
 #  endif  #  endif
 #endif  #endif
   
 \+FFCALL  wcall   ( ... u -- ... )        gforth
   gforth_FP=fp;
 av-start-void   ( c_addr -- )   gforth  av_start_void  sp=(Cell*)(SYSCALL(Cell*(*)(Cell *, void *))u)(sp, &gforth_FP);
 av_start_void(alist, c_addr);  fp=gforth_FP;
   
 av-start-int    ( c_addr -- )   gforth  av_start_int  uw@ ( c_addr -- u )     gforth u_w_fetch
 av_start_int(alist, c_addr, &irv);  ""@i{u} is the zero-extended 16-bit value stored at @i{c_addr}.""
   u = *(UWyde*)(c_addr);
 av-start-float  ( c_addr -- )   gforth  av_start_float  
 av_start_float(alist, c_addr, &frv);  sw@ ( c_addr -- n )     gforth s_w_fetch
   ""@i{n} is the sign-extended 16-bit value stored at @i{c_addr}.""
 av-start-double ( c_addr -- )   gforth  av_start_double  n = *(Wyde*)(c_addr);
 av_start_double(alist, c_addr, &drv);  
   w! ( w c_addr -- )      gforth w_store
 av-start-longlong       ( c_addr -- )   gforth  av_start_longlong  ""Store the bottom 16 bits of @i{w} at @i{c_addr}.""
 av_start_longlong(alist, c_addr, &llrv);  *(Wyde*)(c_addr) = w;
   
 av-start-ptr    ( c_addr -- )   gforth  av_start_ptr  ul@ ( c_addr -- u )     gforth u_l_fetch
 av_start_ptr(alist, c_addr, void*, &prv);  ""@i{u} is the zero-extended 32-bit value stored at @i{c_addr}.""
   u = *(UTetrabyte*)(c_addr);
 av-int  ( w -- )  gforth  av_int  
 av_int(alist, w);  sl@ ( c_addr -- n )     gforth s_l_fetch
   ""@i{n} is the sign-extended 32-bit value stored at @i{c_addr}.""
 av-float        ( r -- )        gforth  av_float  n = *(Tetrabyte*)(c_addr);
 av_float(alist, r);  
   l! ( w c_addr -- )      gforth l_store
 av-double       ( r -- )        gforth  av_double  ""Store the bottom 32 bits of @i{w} at @i{c_addr}.""
 av_double(alist, r);  *(Tetrabyte*)(c_addr) = w;
   
 av-longlong     ( d -- )        gforth  av_longlong  lib-error ( -- c_addr u )       gforth  lib_error
 av_longlong(alist, d);  ""Error message for last failed @code{open-lib} or @code{lib-sym}.""
   #ifdef HAVE_LIBLTDL
 av-ptr  ( c_addr -- )   gforth  av_ptr  c_addr = (Char *)lt_dlerror();
 av_ptr(alist, void*, c_addr);  u = (c_addr == NULL) ? 0 : strlen((char *)c_addr);
   #elif defined(HAVE_LIBDL) || defined(HAVE_DLOPEN)
 av-int-r  ( R:w -- )  gforth  av_int_r  c_addr = dlerror();
 av_int(alist, w);  u = strlen(c_addr);
   #else
 av-float-r      ( -- )  gforth  av_float_r  c_addr = "libltdl is not configured";
 float r = *(Float*)lp;  u = strlen(c_addr);
 lp += sizeof(Float);  #endif
 av_float(alist, r);  
   
 av-double-r     ( -- )  gforth  av_double_r  
 double r = *(Float*)lp;  
 lp += sizeof(Float);  
 av_double(alist, r);  
   
 av-longlong-r   ( R:d -- )      gforth  av_longlong_r  
 av_longlong(alist, d);  
   
 av-ptr-r        ( R:c_addr -- ) gforth  av_ptr_r  
 av_ptr(alist, void*, c_addr);  
   
 av-call-void    ( -- )  gforth  av_call_void  
 SAVE_REGS  
 av_call(alist);  
 REST_REGS  
   
 av-call-int     ( -- w )        gforth  av_call_int  
 SAVE_REGS  
 av_call(alist);  
 REST_REGS  
 w = irv;  
   
 av-call-float   ( -- r )        gforth  av_call_float  
 SAVE_REGS  
 av_call(alist);  
 REST_REGS  
 r = frv;  
   
 av-call-double  ( -- r )        gforth  av_call_double  
 SAVE_REGS  
 av_call(alist);  
 REST_REGS  
 r = drv;  
   
 av-call-longlong        ( -- d )        gforth  av_call_longlong  
 SAVE_REGS  
 av_call(alist);  
 REST_REGS  
 d = llrv;  
   
 av-call-ptr     ( -- c_addr )   gforth  av_call_ptr  
 SAVE_REGS  
 av_call(alist);  
 REST_REGS  
 c_addr = prv;  
   
 alloc-callback  ( a_ip -- c_addr )      gforth  alloc_callback  
 c_addr = (char *)alloc_callback(engine_callback, (Xt *)a_ip);  
   
 va-start-void   ( -- )  gforth  va_start_void  
 va_start_void(clist);  
   
 va-start-int    ( -- )  gforth  va_start_int  
 va_start_int(clist);  
   
 va-start-longlong       ( -- )  gforth  va_start_longlong  
 va_start_longlong(clist);  
   
 va-start-ptr    ( -- )  gforth  va_start_ptr  
 va_start_ptr(clist, (char *));  
   
 va-start-float  ( -- )  gforth  va_start_float  
 va_start_float(clist);  
   
 va-start-double ( -- )  gforth  va_start_double  
 va_start_double(clist);  
   
 va-arg-int      ( -- w )        gforth  va_arg_int  
 w = va_arg_int(clist);  
   
 va-arg-longlong ( -- d )        gforth  va_arg_longlong  
 d = va_arg_longlong(clist);  
   
 va-arg-ptr      ( -- c_addr )   gforth  va_arg_ptr  
 c_addr = (char *)va_arg_ptr(clist,char*);  
   
 va-arg-float    ( -- r )        gforth  va_arg_float  
 r = va_arg_float(clist);  
   
 va-arg-double   ( -- r )        gforth  va_arg_double  
 r = va_arg_double(clist);  
   
 va-return-void ( -- )   gforth va_return_void  
 va_return_void(clist);  
 return 0;  
   
 va-return-int ( w -- )  gforth va_return_int  
 va_return_int(clist, w);  
 return 0;  
   
 va-return-ptr ( c_addr -- )     gforth va_return_ptr  
 va_return_ptr(clist, void *, c_addr);  
 return 0;  
   
 va-return-longlong ( d -- )     gforth va_return_longlong  
 va_return_longlong(clist, d);  
 return 0;  
   
 va-return-float ( r -- )        gforth va_return_float  
 va_return_float(clist, r);  
 return 0;  
   
 va-return-double ( r -- )       gforth va_return_double  
 va_return_double(clist, r);  
 return 0;  
   
 \-  
   
 define(`uploop',  be-w! ( w c_addr -- )   gforth w_store_be
        `pushdef(`$1', `$2')_uploop(`$1', `$2', `$3', `$4', `$5')`'popdef(`$1')')  ""Store the bottom 16 bits of @i{w} at @i{c_addr} in big endian format.""
 define(`_uploop',  c_addr[0] = w >> 8;
        `ifelse($1, `$3', `$5',  c_addr[1] = w;
                `$4`'define(`$1', incr($1))_uploop(`$1', `$2', `$3', `$4', `$5')')')  
 \ argflist(argnum): Forth argument list  be-l! ( w c_addr -- )   gforth l_store_be
 define(argflist,  ""Store the bottom 32 bits of @i{w} at @i{c_addr} in big endian format.""
        `ifelse($1, 0, `',  c_addr[0] = w >> 24;
                `uploop(`_i', 1, $1, `format(`u%d ', _i)', `format(`u%d ', _i)')')')  c_addr[1] = w >> 16;
 \ argdlist(argnum): declare C's arguments  c_addr[2] = w >> 8;
 define(argdlist,  c_addr[3] = w;
        `ifelse($1, 0, `',  
                `uploop(`_i', 1, $1, `Cell, ', `Cell')')')  le-w! ( w c_addr -- )   gforth w_store_le
 \ argclist(argnum): pass C's arguments  ""Store the bottom 16 bits of @i{w} at @i{c_addr} in big endian format.""
 define(argclist,  c_addr[1] = w >> 8;
        `ifelse($1, 0, `',  c_addr[0] = w;
                `uploop(`_i', 1, $1, `format(`u%d, ', _i)', `format(`u%d', _i)')')')  
 \ icall(argnum)  le-l! ( w c_addr -- )   gforth l_store_le
 define(icall,  ""Store the bottom 32 bits of @i{w} at @i{c_addr} in big endian format.""
 `icall$1        ( argflist($1)u -- uret )       gforth  c_addr[3] = w >> 24;
 uret = (SYSCALL(Cell(*)(argdlist($1)))u)(argclist($1));  c_addr[2] = w >> 16;
   c_addr[1] = w >> 8;
 ')  c_addr[0] = w;
 define(fcall,  
 `fcall$1        ( argflist($1)u -- rret )       gforth  be-uw@ ( c_addr -- u )  gforth w_fetch_be
 rret = (SYSCALL(Float(*)(argdlist($1)))u)(argclist($1));  ""@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
 \ close ' to keep fontify happy  ""@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]);
 uploop(i, 0, 7, `icall(i)')  
 icall(20)  le-uw@ ( c_addr -- u )  gforth w_fetch_le
 uploop(i, 0, 7, `fcall(i)')  ""@i{u} is the zero-extended 16-bit little endian value stored at @i{c_addr}.""
 fcall(20)  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
 wcall   ( u -- )        gforth  
 IF_fpTOS(fp[0]=fpTOS);  
 FP=fp;  
 sp=(Cell*)(SYSCALL(Cell*(*)(Cell *, void *))u)(sp, &FP);  
 fp=FP;  
 IF_spTOS(spTOS=sp[0];)  
 IF_fpTOS(fpTOS=fp[0]);  
   
 \+peephole  \+peephole
   
 \g peephole  
   
 compile-prim1 ( a_prim -- ) gforth compile_prim1  compile-prim1 ( a_prim -- ) gforth compile_prim1
 ""compile prim (incl. immargs) at @var{a_prim}""  ""compile prim (incl. immargs) at @var{a_prim}""
 compile_prim1(a_prim);  compile_prim1(a_prim);
   
 finish-code ( -- ) gforth finish_code  finish-code ( ... -- ... ) gforth finish_code
 ""Perform delayed steps in code generation (branch resolution, I-cache  ""Perform delayed steps in code generation (branch resolution, I-cache
 flushing).""  flushing).""
   /* The ... above are a workaround for a bug in gcc-2.95, which fails
      to save spTOS (gforth-fast --enable-force-reg) */
 finish_code();  finish_code();
   
 forget-dyncode ( c_code -- f ) gforth-internal forget_dyncode  forget-dyncode ( c_code -- f ) gforth-internal forget_dyncode
Line 2504  a_addr = groups; Line 2658  a_addr = groups;
   
 \+  \+
   
 \g static_super  \g primitive_centric
   
 \C #if !defined(GFORTH_DEBUGGING) && !defined(INDIRECT_THREADED) && !defined(DOUBLY_INDIRECT) && !defined(VM_PROFILING)  \ primitives for primitive-centric code
   \ another one is does-exec
   
 include(peeprules.vmg)  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
   
 \C #endif  ifdef(`STACK_CACHE_FILE',
   `include(peeprules.vmg)')
   
 \g end  \g end

Removed from v.1.139  
changed lines
  Added in v.1.258


FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>