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Diffstat (limited to '05/tcc-0.9.25/lib/libtcc1.c')
-rw-r--r--05/tcc-0.9.25/lib/libtcc1.c607
1 files changed, 0 insertions, 607 deletions
diff --git a/05/tcc-0.9.25/lib/libtcc1.c b/05/tcc-0.9.25/lib/libtcc1.c
deleted file mode 100644
index b079477..0000000
--- a/05/tcc-0.9.25/lib/libtcc1.c
+++ /dev/null
@@ -1,607 +0,0 @@
-/* TCC runtime library.
- Parts of this code are (c) 2002 Fabrice Bellard
-
- Copyright (C) 1987, 1988, 1992, 1994, 1995 Free Software Foundation, Inc.
-
-This file is free software; you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
-later version.
-
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file. (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
-
-This file is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
-*/
-
-#define W_TYPE_SIZE 32
-#define BITS_PER_UNIT 8
-
-typedef int Wtype;
-typedef unsigned int UWtype;
-typedef unsigned int USItype;
-typedef long long DWtype;
-typedef unsigned long long UDWtype;
-
-struct DWstruct {
- Wtype low, high;
-};
-
-typedef union
-{
- struct DWstruct s;
- DWtype ll;
-} DWunion;
-
-typedef long double XFtype;
-#define WORD_SIZE (sizeof (Wtype) * BITS_PER_UNIT)
-#define HIGH_WORD_COEFF (((UDWtype) 1) << WORD_SIZE)
-
-/* the following deal with IEEE single-precision numbers */
-#define EXCESS 126
-#define SIGNBIT 0x80000000
-#define HIDDEN (1 << 23)
-#define SIGN(fp) ((fp) & SIGNBIT)
-#define EXP(fp) (((fp) >> 23) & 0xFF)
-#define MANT(fp) (((fp) & 0x7FFFFF) | HIDDEN)
-#define PACK(s,e,m) ((s) | ((e) << 23) | (m))
-
-/* the following deal with IEEE double-precision numbers */
-#define EXCESSD 1022
-#define HIDDEND (1 << 20)
-#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF)
-#define SIGND(fp) ((fp.l.upper) & SIGNBIT)
-#define MANTD(fp) (((((fp.l.upper) & 0xFFFFF) | HIDDEND) << 10) | \
- (fp.l.lower >> 22))
-#define HIDDEND_LL ((long long)1 << 52)
-#define MANTD_LL(fp) ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL)
-#define PACKD_LL(s,e,m) (((long long)((s)+((e)<<20))<<32)|(m))
-
-/* the following deal with x86 long double-precision numbers */
-#define EXCESSLD 16382
-#define EXPLD(fp) (fp.l.upper & 0x7fff)
-#define SIGNLD(fp) ((fp.l.upper) & 0x8000)
-
-/* only for x86 */
-union ldouble_long {
- long double ld;
- struct {
- unsigned long long lower;
- unsigned short upper;
- } l;
-};
-
-union double_long {
- double d;
-#if 1
- struct {
- unsigned int lower;
- int upper;
- } l;
-#else
- struct {
- int upper;
- unsigned int lower;
- } l;
-#endif
- long long ll;
-};
-
-union float_long {
- float f;
- long l;
-};
-
-/* XXX: we don't support several builtin supports for now */
-#ifndef __x86_64__
-
-/* XXX: use gcc/tcc intrinsic ? */
-#if defined(__i386__)
-#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
- __asm__ ("subl %5,%1\n\tsbbl %3,%0" \
- : "=r" ((USItype) (sh)), \
- "=&r" ((USItype) (sl)) \
- : "0" ((USItype) (ah)), \
- "g" ((USItype) (bh)), \
- "1" ((USItype) (al)), \
- "g" ((USItype) (bl)))
-#define umul_ppmm(w1, w0, u, v) \
- __asm__ ("mull %3" \
- : "=a" ((USItype) (w0)), \
- "=d" ((USItype) (w1)) \
- : "%0" ((USItype) (u)), \
- "rm" ((USItype) (v)))
-#define udiv_qrnnd(q, r, n1, n0, dv) \
- __asm__ ("divl %4" \
- : "=a" ((USItype) (q)), \
- "=d" ((USItype) (r)) \
- : "0" ((USItype) (n0)), \
- "1" ((USItype) (n1)), \
- "rm" ((USItype) (dv)))
-#define count_leading_zeros(count, x) \
- do { \
- USItype __cbtmp; \
- __asm__ ("bsrl %1,%0" \
- : "=r" (__cbtmp) : "rm" ((USItype) (x))); \
- (count) = __cbtmp ^ 31; \
- } while (0)
-#else
-#error unsupported CPU type
-#endif
-
-/* most of this code is taken from libgcc2.c from gcc */
-
-static UDWtype __udivmoddi4 (UDWtype n, UDWtype d, UDWtype *rp)
-{
- DWunion ww;
- DWunion nn, dd;
- DWunion rr;
- UWtype d0, d1, n0, n1, n2;
- UWtype q0, q1;
- UWtype b, bm;
-
- nn.ll = n;
- dd.ll = d;
-
- d0 = dd.s.low;
- d1 = dd.s.high;
- n0 = nn.s.low;
- n1 = nn.s.high;
-
-#if !UDIV_NEEDS_NORMALIZATION
- if (d1 == 0)
- {
- if (d0 > n1)
- {
- /* 0q = nn / 0D */
-
- udiv_qrnnd (q0, n0, n1, n0, d0);
- q1 = 0;
-
- /* Remainder in n0. */
- }
- else
- {
- /* qq = NN / 0d */
-
- if (d0 == 0)
- d0 = 1 / d0; /* Divide intentionally by zero. */
-
- udiv_qrnnd (q1, n1, 0, n1, d0);
- udiv_qrnnd (q0, n0, n1, n0, d0);
-
- /* Remainder in n0. */
- }
-
- if (rp != 0)
- {
- rr.s.low = n0;
- rr.s.high = 0;
- *rp = rr.ll;
- }
- }
-
-#else /* UDIV_NEEDS_NORMALIZATION */
-
- if (d1 == 0)
- {
- if (d0 > n1)
- {
- /* 0q = nn / 0D */
-
- count_leading_zeros (bm, d0);
-
- if (bm != 0)
- {
- /* Normalize, i.e. make the most significant bit of the
- denominator set. */
-
- d0 = d0 << bm;
- n1 = (n1 << bm) | (n0 >> (W_TYPE_SIZE - bm));
- n0 = n0 << bm;
- }
-
- udiv_qrnnd (q0, n0, n1, n0, d0);
- q1 = 0;
-
- /* Remainder in n0 >> bm. */
- }
- else
- {
- /* qq = NN / 0d */
-
- if (d0 == 0)
- d0 = 1 / d0; /* Divide intentionally by zero. */
-
- count_leading_zeros (bm, d0);
-
- if (bm == 0)
- {
- /* From (n1 >= d0) /\ (the most significant bit of d0 is set),
- conclude (the most significant bit of n1 is set) /\ (the
- leading quotient digit q1 = 1).
-
- This special case is necessary, not an optimization.
- (Shifts counts of W_TYPE_SIZE are undefined.) */
-
- n1 -= d0;
- q1 = 1;
- }
- else
- {
- /* Normalize. */
-
- b = W_TYPE_SIZE - bm;
-
- d0 = d0 << bm;
- n2 = n1 >> b;
- n1 = (n1 << bm) | (n0 >> b);
- n0 = n0 << bm;
-
- udiv_qrnnd (q1, n1, n2, n1, d0);
- }
-
- /* n1 != d0... */
-
- udiv_qrnnd (q0, n0, n1, n0, d0);
-
- /* Remainder in n0 >> bm. */
- }
-
- if (rp != 0)
- {
- rr.s.low = n0 >> bm;
- rr.s.high = 0;
- *rp = rr.ll;
- }
- }
-#endif /* UDIV_NEEDS_NORMALIZATION */
-
- else
- {
- if (d1 > n1)
- {
- /* 00 = nn / DD */
-
- q0 = 0;
- q1 = 0;
-
- /* Remainder in n1n0. */
- if (rp != 0)
- {
- rr.s.low = n0;
- rr.s.high = n1;
- *rp = rr.ll;
- }
- }
- else
- {
- /* 0q = NN / dd */
-
- count_leading_zeros (bm, d1);
- if (bm == 0)
- {
- /* From (n1 >= d1) /\ (the most significant bit of d1 is set),
- conclude (the most significant bit of n1 is set) /\ (the
- quotient digit q0 = 0 or 1).
-
- This special case is necessary, not an optimization. */
-
- /* The condition on the next line takes advantage of that
- n1 >= d1 (true due to program flow). */
- if (n1 > d1 || n0 >= d0)
- {
- q0 = 1;
- sub_ddmmss (n1, n0, n1, n0, d1, d0);
- }
- else
- q0 = 0;
-
- q1 = 0;
-
- if (rp != 0)
- {
- rr.s.low = n0;
- rr.s.high = n1;
- *rp = rr.ll;
- }
- }
- else
- {
- UWtype m1, m0;
- /* Normalize. */
-
- b = W_TYPE_SIZE - bm;
-
- d1 = (d1 << bm) | (d0 >> b);
- d0 = d0 << bm;
- n2 = n1 >> b;
- n1 = (n1 << bm) | (n0 >> b);
- n0 = n0 << bm;
-
- udiv_qrnnd (q0, n1, n2, n1, d1);
- umul_ppmm (m1, m0, q0, d0);
-
- if (m1 > n1 || (m1 == n1 && m0 > n0))
- {
- q0--;
- sub_ddmmss (m1, m0, m1, m0, d1, d0);
- }
-
- q1 = 0;
-
- /* Remainder in (n1n0 - m1m0) >> bm. */
- if (rp != 0)
- {
- sub_ddmmss (n1, n0, n1, n0, m1, m0);
- rr.s.low = (n1 << b) | (n0 >> bm);
- rr.s.high = n1 >> bm;
- *rp = rr.ll;
- }
- }
- }
- }
-
- ww.s.low = q0;
- ww.s.high = q1;
- return ww.ll;
-}
-
-#define __negdi2(a) (-(a))
-
-long long __divdi3(long long u, long long v)
-{
- int c = 0;
- DWunion uu, vv;
- DWtype w;
-
- uu.ll = u;
- vv.ll = v;
-
- if (uu.s.high < 0) {
- c = ~c;
- uu.ll = __negdi2 (uu.ll);
- }
- if (vv.s.high < 0) {
- c = ~c;
- vv.ll = __negdi2 (vv.ll);
- }
- w = __udivmoddi4 (uu.ll, vv.ll, (UDWtype *) 0);
- if (c)
- w = __negdi2 (w);
- return w;
-}
-
-long long __moddi3(long long u, long long v)
-{
- int c = 0;
- DWunion uu, vv;
- DWtype w;
-
- uu.ll = u;
- vv.ll = v;
-
- if (uu.s.high < 0) {
- c = ~c;
- uu.ll = __negdi2 (uu.ll);
- }
- if (vv.s.high < 0)
- vv.ll = __negdi2 (vv.ll);
-
- __udivmoddi4 (uu.ll, vv.ll, (UDWtype *) &w);
- if (c)
- w = __negdi2 (w);
- return w;
-}
-
-unsigned long long __udivdi3(unsigned long long u, unsigned long long v)
-{
- return __udivmoddi4 (u, v, (UDWtype *) 0);
-}
-
-unsigned long long __umoddi3(unsigned long long u, unsigned long long v)
-{
- UDWtype w;
-
- __udivmoddi4 (u, v, &w);
- return w;
-}
-
-/* XXX: fix tcc's code generator to do this instead */
-long long __ashrdi3(long long a, int b)
-{
-#ifdef __TINYC__
- DWunion u;
- u.ll = a;
- if (b >= 32) {
- u.s.low = u.s.high >> (b - 32);
- u.s.high = u.s.high >> 31;
- } else if (b != 0) {
- u.s.low = ((unsigned)u.s.low >> b) | (u.s.high << (32 - b));
- u.s.high = u.s.high >> b;
- }
- return u.ll;
-#else
- return a >> b;
-#endif
-}
-
-/* XXX: fix tcc's code generator to do this instead */
-unsigned long long __lshrdi3(unsigned long long a, int b)
-{
-#ifdef __TINYC__
- DWunion u;
- u.ll = a;
- if (b >= 32) {
- u.s.low = (unsigned)u.s.high >> (b - 32);
- u.s.high = 0;
- } else if (b != 0) {
- u.s.low = ((unsigned)u.s.low >> b) | (u.s.high << (32 - b));
- u.s.high = (unsigned)u.s.high >> b;
- }
- return u.ll;
-#else
- return a >> b;
-#endif
-}
-
-/* XXX: fix tcc's code generator to do this instead */
-long long __ashldi3(long long a, int b)
-{
-#ifdef __TINYC__
- DWunion u;
- u.ll = a;
- if (b >= 32) {
- u.s.high = (unsigned)u.s.low << (b - 32);
- u.s.low = 0;
- } else if (b != 0) {
- u.s.high = ((unsigned)u.s.high << b) | ((unsigned)u.s.low >> (32 - b));
- u.s.low = (unsigned)u.s.low << b;
- }
- return u.ll;
-#else
- return a << b;
-#endif
-}
-
-#if defined(__i386__)
-/* FPU control word for rounding to nearest mode */
-unsigned short __tcc_fpu_control = 0x137f;
-/* FPU control word for round to zero mode for int conversion */
-unsigned short __tcc_int_fpu_control = 0x137f | 0x0c00;
-#endif
-
-#endif /* !__x86_64__ */
-
-/* XXX: fix tcc's code generator to do this instead */
-float __floatundisf(unsigned long long a)
-{
- DWunion uu;
- XFtype r;
-
- uu.ll = a;
- if (uu.s.high >= 0) {
- return (float)uu.ll;
- } else {
- r = (XFtype)uu.ll;
- r += 18446744073709551616.0;
- return (float)r;
- }
-}
-
-double __floatundidf(unsigned long long a)
-{
- DWunion uu;
- XFtype r;
-
- uu.ll = a;
- if (uu.s.high >= 0) {
- return (double)uu.ll;
- } else {
- r = (XFtype)uu.ll;
- r += 18446744073709551616.0;
- return (double)r;
- }
-}
-
-long double __floatundixf(unsigned long long a)
-{
- DWunion uu;
- XFtype r;
-
- uu.ll = a;
- if (uu.s.high >= 0) {
- return (long double)uu.ll;
- } else {
- r = (XFtype)uu.ll;
- r += 18446744073709551616.0;
- return (long double)r;
- }
-}
-
-unsigned long long __fixunssfdi (float a1)
-{
- register union float_long fl1;
- register int exp;
- register unsigned long l;
-
- fl1.f = a1;
-
- if (fl1.l == 0)
- return (0);
-
- exp = EXP (fl1.l) - EXCESS - 24;
-
- l = MANT(fl1.l);
- if (exp >= 41)
- return (unsigned long long)-1;
- else if (exp >= 0)
- return (unsigned long long)l << exp;
- else if (exp >= -23)
- return l >> -exp;
- else
- return 0;
-}
-
-unsigned long long __fixunsdfdi (double a1)
-{
- register union double_long dl1;
- register int exp;
- register unsigned long long l;
-
- dl1.d = a1;
-
- if (dl1.ll == 0)
- return (0);
-
- exp = EXPD (dl1) - EXCESSD - 53;
-
- l = MANTD_LL(dl1);
-
- if (exp >= 12)
- return (unsigned long long)-1;
- else if (exp >= 0)
- return l << exp;
- else if (exp >= -52)
- return l >> -exp;
- else
- return 0;
-}
-
-unsigned long long __fixunsxfdi (long double a1)
-{
- register union ldouble_long dl1;
- register int exp;
- register unsigned long long l;
-
- dl1.ld = a1;
-
- if (dl1.l.lower == 0 && dl1.l.upper == 0)
- return (0);
-
- exp = EXPLD (dl1) - EXCESSLD - 64;
-
- l = dl1.l.lower;
-
- if (exp > 0)
- return (unsigned long long)-1;
- else if (exp >= -63)
- return l >> -exp;
- else
- return 0;
-}
-
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