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Simplify division function a bit.

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This commit is contained in:
Ken MacKay
2014-03-10 07:31:24 -07:00
parent 6da9ed4e77
commit bcc251667f
1 changed files with 4 additions and 16 deletions
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ecc.c
+4 -16
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@@ -1038,10 +1038,7 @@ static void vli_modInv(uint32_t *p_result, uint32_t *p_input, uint32_t *p_mod)
l_carry = vli_add(u, u, p_mod);
}
vli_rshift1(u);
if(l_carry)
{
u[NUM_ECC_DIGITS-1] |= 0x80000000;
}
u[NUM_ECC_DIGITS-1] |= l_carry << 31;
}
else if(EVEN(b))
{
@@ -1051,10 +1048,7 @@ static void vli_modInv(uint32_t *p_result, uint32_t *p_input, uint32_t *p_mod)
l_carry = vli_add(v, v, p_mod);
}
vli_rshift1(v);
if(l_carry)
{
v[NUM_ECC_DIGITS-1] |= 0x80000000;
}
v[NUM_ECC_DIGITS-1] |= l_carry << 31;
}
else if(l_cmpResult > 0)
{
@@ -1070,10 +1064,7 @@ static void vli_modInv(uint32_t *p_result, uint32_t *p_input, uint32_t *p_mod)
l_carry = vli_add(u, u, p_mod);
}
vli_rshift1(u);
if(l_carry)
{
u[NUM_ECC_DIGITS-1] |= 0x80000000;
}
u[NUM_ECC_DIGITS-1] |= l_carry << 31;
}
else
{
@@ -1089,10 +1080,7 @@ static void vli_modInv(uint32_t *p_result, uint32_t *p_input, uint32_t *p_mod)
l_carry = vli_add(v, v, p_mod);
}
vli_rshift1(v);
if(l_carry)
{
v[NUM_ECC_DIGITS-1] |= 0x80000000;
}
v[NUM_ECC_DIGITS-1] |= l_carry << 31;
}
}