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added 32 bit shift support

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bellard 2003-05-24 14:03:15 +00:00
parent 638e666c42
commit 813acdc691
1 changed files with 39 additions and 0 deletions
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39
libtcc1.c
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@ -421,19 +421,58 @@ unsigned long long __umoddi3(unsigned long long u, unsigned long long v)
/* XXX: fix tcc's code generator to do this instead */ /* XXX: fix tcc's code generator to do this instead */
long long __sardi3(long long a, int b) long long __sardi3(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; return a >> b;
#endif
} }
/* XXX: fix tcc's code generator to do this instead */ /* XXX: fix tcc's code generator to do this instead */
unsigned long long __shrdi3(unsigned long long a, int b) unsigned long long __shrdi3(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; return a >> b;
#endif
} }
/* XXX: fix tcc's code generator to do this instead */ /* XXX: fix tcc's code generator to do this instead */
long long __shldi3(long long a, int b) long long __shldi3(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) | (u.s.low >> (32 - b));
u.s.low = (unsigned)u.s.low << b;
}
return u.ll;
#else
return a << b; return a << b;
#endif
} }
#if defined(__i386__) #if defined(__i386__)