Merge branch 'master' of git://localhost/acess2

[tpg/acess2.git] / Usermode / Libraries / libgcc.so_src / libgcc.c

diff --git a/Usermode/Libraries/libgcc.so_src/libgcc.c b/Usermode/Libraries/libgcc.so_src/libgcc.c
index f88b663..df1832d 100644 (file)
--- a/Usermode/Libraries/libgcc.so_src/libgcc.c
+++ b/Usermode/Libraries/libgcc.so_src/libgcc.c
@@ -13,116 +13,8 @@ int SoMain()
 // --- Errors ---
 void __stack_chk_fail()
 {
-       write(2, 32, "FATAL ERROR: Stack Check Failed\n");
+       write(2, "FATAL ERROR: Stack Check Failed\n", 32);
        _exit(-1);
        for(;;);
 }
 
-// --- 64-Bit Math ---
-/**
- * \fn uint64_t __udivdi3(uint64_t Num, uint64_t Den)
- * \brief Divide two 64-bit integers
- */
-uint64_t __udivdi3(uint64_t Num, uint64_t Den)
-{
-       #if 0
-       uint64_t        ret = 0;
-       if(Den == 0)    // Call Div by Zero Error
-               __asm__ __volatile__ ("int $0");
-       
-       if(Den == 1)    return Num;
-       if(Den == 2)    return Num >> 1;
-       if(Den == 4)    return Num >> 2;
-       if(Den == 8)    return Num >> 3;
-       if(Den == 16)   return Num >> 4;
-       if(Den == 32)   return Num >> 5;
-       if(Den == 64)   return Num >> 6;
-       if(Den == 128)  return Num >> 7;
-       if(Den == 256)  return Num >> 8;
-       
-       while(Num > Den) {
-               ret ++;
-               Num -= Den;
-       }
-       return ret;
-       #else
-       uint64_t        P[2];
-       uint64_t        q;
-        int    i;
-       
-       if(Den == 0)    __asm__ __volatile__ ("int $0x0");
-       // Common speedups
-       if(Num <= 0xFFFFFFFF && Den <= 0xFFFFFFFF)
-               return Num / Den;
-       if(Den == 1)    return Num;
-       if(Den == 2)    return Num >> 1;
-       if(Den == 16)   return Num >> 4;
-       if(Num < Den)   return 0;
-       if(Num < Den*2) return 1;
-       if(Num == Den*2)        return 2;
-       
-       // Restoring division, from wikipedia
-       // http://en.wikipedia.org/wiki/Division_(digital)
-       P[0] = Num;     P[1] = 0;
-       for( i = 64; i--; )
-       {
-               // P <<= 1;
-               P[1] = (P[1] << 1) | (P[0] >> 63);
-               P[0] = P[0] << 1;
-               
-               // P -= Den << 64
-               P[1] -= Den;
-               
-               // P >= 0
-               if( !(P[1] & (1ULL<<63)) ) {
-                       q |= (uint64_t)1 << (63-i);
-               }
-               else {
-                       //q |= 0 << (63-i);
-                       P[1] += Den;
-               }
-       }
-       
-       return q;
-       #endif
-}
-
-/**
- * \fn uint64_t __umoddi3(uint64_t Num, uint64_t Den)
- * \brief Get the modulus of two 64-bit integers
- */
-uint64_t __umoddi3(uint64_t Num, uint64_t Den)
-{
-       #if 0
-       if(Den == 0)    __asm__ __volatile__ ("int $0");        // Call Div by Zero Error
-       
-       if(Den == 1)    return 0;
-       if(Den == 2)    return Num & 0x01;
-       if(Den == 4)    return Num & 0x03;
-       if(Den == 8)    return Num & 0x07;
-       if(Den == 16)   return Num & 0x0F;
-       if(Den == 32)   return Num & 0x1F;
-       if(Den == 64)   return Num & 0x3F;
-       if(Den == 128)  return Num & 0x3F;
-       if(Den == 256)  return Num & 0x7F;
-       
-       while(Num >= Den)       Num -= Den;
-       
-       return Num;
-       #else
-       if(Den == 0)    __asm__ __volatile__ ("int $0");        // Call Div by Zero Error
-       
-       // Speedups
-       if(Num < Den)   return Num;
-       if(Num == Den)  return 0;
-       if(Num <= 0xFFFFFFFF && Den <= 0xFFFFFFFF)
-               return (uint32_t)Num % (uint32_t)Den;
-       
-       // Speedups for common operations
-       if(Den == 1)    return 0;
-       if(Den == 2)    return Num & 0x01;
-       if(Den == 8)    return Num & 0x07;
-       if(Den == 16)   return Num & 0x0F;
-       return Num - __udivdi3(Num, Den) * Den;
-       #endif
-}