[BACK]Return to primitives CVS log [TXT] [DIR] Up to [gforth] / gforth

Diff for /gforth/Attic/primitives between versions 1.40 and 1.41

version 1.40, 1995/09/06 21:00:26 version 1.41, 1995/10/07 17:38:18
Line 166  if(((olddiff^MAXINT) >= n) ^ ((olddiff+n Line 166  if(((olddiff^MAXINT) >= n) ^ ((olddiff+n
     IF_TOS(TOS = sp[0]);      IF_TOS(TOS = sp[0]);
 )  )
   
   condbranch((-loop),u --         new     paren_minus_loop,
   /* !! check this thoroughly */
   Cell index = *rp;
   /* sign bit manipulation and test: (x^y)<0 is equivalent to (x<0) != (y<0) */
   /* dependent upon two's complement arithmetic */
   UCell olddiff = index-rp[1];
   if (olddiff>u) {
       *rp = index - u;
       IF_TOS(TOS = sp[0]);
   )
   
 condbranch((s+loop),n --                new     paren_symmetric_plus_loop,  condbranch((s+loop),n --                new     paren_symmetric_plus_loop,
 ""The run-time procedure compiled by S+LOOP. It loops until the index  ""The run-time procedure compiled by S+LOOP. It loops until the index
 crosses the boundary between limit and limit-sign(n). I.e. a symmetric  crosses the boundary between limit and limit-sign(n). I.e. a symmetric
Line 206  rp += 2; Line 217  rp += 2;
 :  :
  r> -rot swap >r >r >r ;   r> -rot swap >r >r >r ;
   
 (?do)   nlimit nstart --        core-ext        paren_question_do  (?do)   nlimit nstart --        new     paren_question_do
 *--rp = nlimit;  *--rp = nlimit;
 *--rp = nstart;  *--rp = nstart;
 if (nstart == nlimit) {  if (nstart == nlimit) {
Line 217  else { Line 228  else {
     INC_IP(1);      INC_IP(1);
 }  }
   
   (+do)   nlimit nstart --        new     paren_plus_do
   *--rp = nlimit;
   *--rp = nstart;
   if (nstart >= nlimit) {
       IF_TOS(TOS = sp[0]);
       goto branch;
       }
   else {
       INC_IP(1);
   }
   
   (u+do)  ulimit ustart --        new     paren_u_plus_do
   *--rp = ulimit;
   *--rp = ustart;
   if (ustart >= ulimit) {
       IF_TOS(TOS = sp[0]);
       goto branch;
       }
   else {
       INC_IP(1);
   }
   
   (-do)   nlimit nstart --        new     paren_minus_do
   *--rp = nlimit;
   *--rp = nstart;
   if (nstart <= nlimit) {
       IF_TOS(TOS = sp[0]);
       goto branch;
       }
   else {
       INC_IP(1);
   }
   
   (u-do)  ulimit ustart --        new     paren_u_minus_do
   *--rp = ulimit;
   *--rp = ustart;
   if (ustart <= ulimit) {
       IF_TOS(TOS = sp[0]);
       goto branch;
       }
   else {
       INC_IP(1);
   }
   
 i       -- n            core,fig  i       -- n            core,fig
 n = *rp;  n = *rp;
   
Line 1304  behaviour is undefined"" Line 1359  behaviour is undefined""
 defining-word-defined */  defining-word-defined */
 a_addr = (Cell *)DOES_CODE(xt);  a_addr = (Cell *)DOES_CODE(xt);
   
 code-address!           n xt -- new     code_address_store  code-address!           c_addr xt --            new     code_address_store
 ""Creates a code field with code address c_addr at xt""  ""Creates a code field with code address c_addr at xt""
 MAKE_CF(xt, symbols[CF(n)]);  MAKE_CF(xt, c_addr);
 CACHE_FLUSH(xt,PFA(0));  CACHE_FLUSH(xt,PFA(0));
   
 does-code!      a_addr xt --            new     does_code_store  does-code!      a_addr xt --            new     does_code_store
Line 1315  is the start of the Forth code after DOE Line 1370  is the start of the Forth code after DOE
 MAKE_DOES_CF(xt, a_addr);  MAKE_DOES_CF(xt, a_addr);
 CACHE_FLUSH(xt,PFA(0));  CACHE_FLUSH(xt,PFA(0));
   
 does-handler!   a_addr --       new     does_jump_store  does-handler!   a_addr --       new     does_handler_store
 ""creates a DOES>-handler at address a_addr. a_addr usually points  ""creates a DOES>-handler at address a_addr. a_addr usually points
 just behind a DOES>.""  just behind a DOES>.""
 MAKE_DOES_HANDLER(a_addr);  MAKE_DOES_HANDLER(a_addr);
Line 1326  CACHE_FLUSH(a_addr,DOES_HANDLER_SIZE); Line 1381  CACHE_FLUSH(a_addr,DOES_HANDLER_SIZE);
 /* !! a constant or environmental query might be better */  /* !! a constant or environmental query might be better */
 n = DOES_HANDLER_SIZE;  n = DOES_HANDLER_SIZE;
   
   flush-icache    c_addr u --     gforth  flush_icache
   ""Make sure that the instruction cache of the processor (if there is
   one) does not contain stale data at @var{c_addr} and @var{u} bytes
   afterwards. @code{END-CODE} performs a @code{flush-icache}
   automatically. Caveat: @code{flush-icache} might not work on your
   installation; this is usually the case if direct threading is not
   supported on your machine (take a look at your @file{machine.h}) and
   your machine has a separate instruction cache. In such cases,
   @code{flush-icache} does nothing instead of flushing the instruction
   cache.""
   FLUSH_ICACHE(c_addr,u);
   
 toupper c1 -- c2        new  toupper c1 -- c2        new
 c2 = toupper(c1);  c2 = toupper(c1);
   
Removed from v.1.40  
changed lines
  Added in v.1.41

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