Diff for /gforth/prim between versions 1.202 and 1.208

version 1.202, 2006/10/30 15:50:52 version 1.208, 2007/03/25 21:30:59
Line 1 Line 1
 \ Gforth primitives  \ Gforth primitives
   
 \ Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 851  DCell d = (DCell)n1 * (DCell)n2; Line 851  DCell d = (DCell)n1 * (DCell)n2;
 #endif  #endif
 #ifdef ASM_SM_SLASH_REM  #ifdef ASM_SM_SLASH_REM
 ASM_SM_SLASH_REM(DLO(d), DHI(d), n3, n4, n5);  ASM_SM_SLASH_REM(DLO(d), DHI(d), n3, n4, n5);
 if (((DHI(d)^n3)<0) && n4!=0) {  if (FLOORED_DIV && ((DHI(d)^n3)<0) && n4!=0) {
   if (CHECK_DIVISION && n5 == CELL_MIN)    if (CHECK_DIVISION && n5 == CELL_MIN)
     throw(BALL_RESULTRANGE);      throw(BALL_RESULTRANGE);
   n5--;    n5--;
   n4+=n3;    n4+=n3;
 }  }
 #else  #else
 DCell r = fmdiv(d,n3);  DCell r = FLOORED_DIV ? fmdiv(d,n3) : smdiv(d,n3);
 n4=DHI(r);  n4=DHI(r);
 n5=DLO(r);  n5=DLO(r);
 #endif  #endif
Line 875  DCell d = (DCell)n1 * (DCell)n2; Line 875  DCell d = (DCell)n1 * (DCell)n2;
 #ifdef ASM_SM_SLASH_REM  #ifdef ASM_SM_SLASH_REM
 Cell remainder;  Cell remainder;
 ASM_SM_SLASH_REM(DLO(d), DHI(d), n3, remainder, n4);  ASM_SM_SLASH_REM(DLO(d), DHI(d), n3, remainder, n4);
 if (((DHI(d)^n3)<0) && remainder!=0) {  if (FLOORED_DIV && ((DHI(d)^n3)<0) && remainder!=0) {
   if (CHECK_DIVISION && n4 == CELL_MIN)    if (CHECK_DIVISION && n4 == CELL_MIN)
     throw(BALL_RESULTRANGE);      throw(BALL_RESULTRANGE);
   n4--;    n4--;
 }  }
 #else  #else
 DCell r = fmdiv(d,n3);  DCell r = FLOORED_DIV ? fmdiv(d,n3) : smdiv(d,n3);
 n4=DLO(r);  n4=DLO(r);
 #endif  #endif
 :  :
Line 907  n2 = n1>>1; Line 907  n2 = n1>>1;
 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 ASM_SM_SLASH_REM  #ifdef ASM_SM_SLASH_REM
 #ifdef BUGGY_LL_DIV  ASM_SM_SLASH_REM(DLO(d1), DHI(d1), n1, n2, n3);
 ASM_SM_SLASH_REM(d1.lo, d1.hi, n1, n2, n3);  
 if (((DHI(d1)^n1)<0) && n2!=0) {  if (((DHI(d1)^n1)<0) && n2!=0) {
   if (CHECK_DIVISION && n3 == CELL_MIN)    if (CHECK_DIVISION && n3 == CELL_MIN)
     throw(BALL_RESULTRANGE);      throw(BALL_RESULTRANGE);
   n3--;    n3--;
   n2+=n1;    n2+=n1;
 }  }
 #else  
 ASM_SM_SLASH_REM4(d1, n1, n2, n3);  
 if (((DHI(d1)^n1)<0) && n2!=0) {  
   if (CHECK_DIVISION && n3 == CELL_MIN)  
     throw(BALL_RESULTRANGE);  
   n3--;  
   n2+=n1;  
 }  
 #endif  
 #else /* !defined(ASM_SM_SLASH_REM) */  #else /* !defined(ASM_SM_SLASH_REM) */
 DCell r = fmdiv(d1,n1);  DCell r = fmdiv(d1,n1);
 n2=DHI(r);  n2=DHI(r);
 n3=DLO(r);  n3=DLO(r);
 #endif /* !defined(ADM_SM_SLASH_REM) */  #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 937  n3=DLO(r); Line 927  n3=DLO(r);
   
 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_LL_DIV  
 #ifdef ASM_SM_SLASH_REM  #ifdef ASM_SM_SLASH_REM
 ASM_SM_SLASH_REM(d1.lo, d1.hi, n1, n2, n3);  ASM_SM_SLASH_REM(DLO(d1), DHI(d1), n1, n2, n3);
 #else /* !defined(ASM_SM_SLASH_REM) */  #else /* !defined(ASM_SM_SLASH_REM) */
 DCell r = smdiv(d1,n1);  DCell r = smdiv(d1,n1);
 n2=DHI(r);  n2=DHI(r);
 n3=DLO(r);  n3=DLO(r);
 #endif /* !defined(ASM_SM_SLASH_REM) */  #endif /* !defined(ASM_SM_SLASH_REM) */
 #else  
 #ifdef ASM_SM_SLASH_REM4  
 ASM_SM_SLASH_REM4(d1, n1, n2, n3);  
 #else /* !defined(ASM_SM_SLASH_REM4) */  
 /* assumes that the processor uses either floored or symmetric division */  
 DCell d3 = d1/n1;  
 n2 = d1%n1;  
 if (CHECK_DIVISION_SW && n1 == 0)  
   throw(BALL_DIVZERO);  
 /* note that this 1%-3<0 is optimized by the compiler */  
 if (1%-3<0 && ((DHI(d1)^n1)<0) && n2!=0) {  
   d3++;  
   n2-=n1;  
 }  
 n3 = d3;  
 if (CHECK_DIVISION && d3 != n3)  
   throw(BALL_RESULTRANGE);  
 #endif /* !defined(ASM_SM_SLASH_REM4) */  
 #endif  
 :  :
  over >r dup >r abs -rot   over >r dup >r abs -rot
  dabs rot um/mod   dabs rot um/mod
Line 999  ud = (UDCell)u1 * (UDCell)u2; Line 969  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_LL_DIV  
 #ifdef ASM_UM_SLASH_MOD  #ifdef ASM_UM_SLASH_MOD
 ASM_UM_SLASH_MOD(ud.lo, ud.hi, u1, u2, u3);  ASM_UM_SLASH_MOD(DLO(ud), DHI(ud), u1, u2, u3);
 #else /* !defined(ASM_UM_SLASH_MOD) */  #else /* !defined(ASM_UM_SLASH_MOD) */
 UDCell r = umdiv(ud,u1);  UDCell r = umdiv(ud,u1);
 u2=DHI(r);  u2=DHI(r);
 u3=DLO(r);  u3=DLO(r);
 #endif /* !defined(ASM_UM_SLASH_MOD) */  #endif /* !defined(ASM_UM_SLASH_MOD) */
 #else  
 #ifdef ASM_UM_SLASH_MOD4  
 ASM_UM_SLASH_MOD4(ud, u1, u2, u3);  
 #else /* !defined(ASM_UM_SLASH_MOD4) */  
 UDCell ud3 = ud/u1;  
 u2 = ud%u1;  
 if (CHECK_DIVISION_SW && u1 == 0)  
   throw(BALL_DIVZERO);  
 u3 = ud3;  
 if (CHECK_DIVISION && ud3 != u3)  
   throw(BALL_RESULTRANGE);  
 #endif /* !defined(ASM_UM_SLASH_MOD4) */  
 #endif  
 :  :
    0 swap [ 8 cells 1 + ] literal 0     0 swap [ 8 cells 1 + ] literal 0
    ?DO /modstep     ?DO /modstep
Line 1072  d2 = -d1; Line 1028  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_LL_SHIFT  d2 = DLSHIFT(d1,1);
 DLO_IS(d2, DLO(d1)<<1);  
 DHI_IS(d2, (DHI(d1)<<1) | (DLO(d1)>>(CELL_BITS-1)));  
 #else  
 d2 = 2*d1;  
 #endif  
 :  :
  2dup d+ ;   2dup d+ ;
   
Line 1691  f = key_query((FILE*)wfileid); Line 1642  f = key_query((FILE*)wfileid);
 f = key_query(stdin);  f = key_query(stdin);
 #endif  #endif
   
 \+os  
   
 stdin   ( -- wfileid )  gforth  stdin   ( -- wfileid )  gforth
 ""The standard input file of the Gforth process.""  ""The standard input file of the Gforth process.""
 wfileid = (Cell)stdin;  wfileid = (Cell)stdin;
Line 1705  stderr ( -- wfileid ) gforth Line 1654  stderr ( -- wfileid ) gforth
 ""The standard error output file of the Gforth process.""  ""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 change
 with the window size.""  with the window size.""
Line 2810  define(`uploop', Line 2761  define(`uploop',
 define(`_uploop',  define(`_uploop',
        `ifelse($1, `$3', `$5',         `ifelse($1, `$3', `$5',
                `$4`'define(`$1', incr($1))_uploop(`$1', `$2', `$3', `$4', `$5')')')                 `$4`'define(`$1', incr($1))_uploop(`$1', `$2', `$3', `$4', `$5')')')
   
 \ argflist(argnum): Forth argument list  \ argflist(argnum): Forth argument list
 define(argflist,  define(argflist,
        `ifelse($1, 0, `',         `ifelse($1, 0, `',
                `uploop(`_i', 1, $1, `format(`u%d ', _i)', `format(`u%d ', _i)')')')                 `uploop(`_i', 1, $1, ``u''`_i ', ``u''`_i')')')
 \ argdlist(argnum): declare C's arguments  \ argdlist(argnum): declare C's arguments
 define(argdlist,  define(argdlist,
        `ifelse($1, 0, `',         `ifelse($1, 0, `',
Line 2821  define(argdlist, Line 2773  define(argdlist,
 \ argclist(argnum): pass C's arguments  \ argclist(argnum): pass C's arguments
 define(argclist,  define(argclist,
        `ifelse($1, 0, `',         `ifelse($1, 0, `',
                `uploop(`_i', 1, $1, `format(`u%d, ', _i)', `format(`u%d', _i)')')')                 `uploop(`_i', 1, $1, ``u''`_i, ', ``u''`_i')')')
 \ icall(argnum)  \ icall(argnum)
 define(icall,  define(icall,
 `icall$1        ( argflist($1)u -- uret )       gforth  `icall$1        ( argflist($1) u -- uret )      gforth
 uret = (SYSCALL(Cell(*)(argdlist($1)))u)(argclist($1));  uret = (SYSCALL(Cell(*)(argdlist($1)))u)(argclist($1));
   
 ')  ')
 define(fcall,  define(fcall,
 `fcall$1        ( argflist($1)u -- rret )       gforth  `fcall$1        ( argflist($1) u -- rret )      gforth
 rret = (SYSCALL(Float(*)(argdlist($1)))u)(argclist($1));  rret = (SYSCALL(Float(*)(argdlist($1)))u)(argclist($1));
   
 ')  ')

Removed from v.1.202  
changed lines
  Added in v.1.208


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