--- gforth/prim 2006/10/30 15:50:52 1.202 +++ gforth/prim 2007/01/05 13:36:06 1.205 @@ -1,6 +1,6 @@ \ 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. @@ -907,28 +907,18 @@ n2 = n1>>1; 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}."" #ifdef ASM_SM_SLASH_REM -#ifdef BUGGY_LL_DIV -ASM_SM_SLASH_REM(d1.lo, d1.hi, n1, n2, n3); +ASM_SM_SLASH_REM(DLO(d1), DHI(d1), n1, n2, n3); if (((DHI(d1)^n1)<0) && n2!=0) { if (CHECK_DIVISION && n3 == CELL_MIN) throw(BALL_RESULTRANGE); n3--; 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) */ DCell r = fmdiv(d1,n1); n2=DHI(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 over 0< IF tuck + swap THEN @@ -937,33 +927,13 @@ n3=DLO(r); 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."" -#ifdef BUGGY_LL_DIV #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) */ DCell r = smdiv(d1,n1); n2=DHI(r); n3=DLO(r); #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 dabs rot um/mod @@ -999,27 +969,13 @@ ud = (UDCell)u1 * (UDCell)u2; um/mod ( ud u1 -- u2 u3 ) core u_m_slash_mod ""ud=u3*u1+u2, u1>u2>=0"" -#ifdef BUGGY_LL_DIV #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) */ UDCell r = umdiv(ud,u1); u2=DHI(r); u3=DLO(r); #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 ?DO /modstep @@ -1072,12 +1028,7 @@ d2 = -d1; d2* ( d1 -- d2 ) double d_two_star ""Shift left by 1; also works on unsigned numbers"" -#ifdef BUGGY_LL_SHIFT -DLO_IS(d2, DLO(d1)<<1); -DHI_IS(d2, (DHI(d1)<<1) | (DLO(d1)>>(CELL_BITS-1))); -#else -d2 = 2*d1; -#endif +d2 = DLSHIFT(d1,1); : 2dup d+ ;