X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=hamming32.c;h=a27725318e5fab6893bcb653dd89c9162afb2abc;hb=fb9bc5893a549544f90236a03ab5b5857b53afd7;hp=6270f4b3a48cc77f7f9a490130d128cb8d655ca3;hpb=f3e7020b1b1878652733d7b146dd77c842b43cae;p=hamming

diff --git a/hamming32.c b/hamming32.c
index 6270f4b..a277253 100644
--- a/hamming32.c
+++ b/hamming32.c
@@ -34,7 +34,7 @@ unsigned generate_parity(unsigned data)
 	unsigned parity3 = find_parity_32(data & 0x01c78f0f);
 	unsigned parity4 = find_parity_32(data & 0x003f80ff);
 	unsigned parity5 = find_parity_32(data & 0x00007fff);
-	unsigned parity6 = find_parity_32(data & 0x03b4e986);
+	unsigned parity6 = find_parity_32(data & 0x03b4e996);
 		
 	return parity6 | (parity5 << 1) | (parity4 << 2) | (parity3 << 3) | (parity2 << 4) | (parity1 << 5);
 }
@@ -79,15 +79,15 @@ int has_double_error(unsigned code)
 	unsigned extra_parity = find_parity_32(code);
 
 	/* no errors at all (user should have used has_error() first; boo, hiss) */
-	if (hamming_parity == gen_hamming_parity && extra_parity == 1)
+	if (hamming_parity == gen_hamming_parity && extra_parity == 0)
 		return 0;
 
 	/* both hamming and simple parity errors; this is a single-bit error */
-	if (hamming_parity != gen_hamming_parity && extra_parity == 0)
+	if (hamming_parity != gen_hamming_parity && extra_parity == 1)
 		return 0;
 
 	/* hamming says OK, but simple parity indicates an error => simple parity error is wrong */
-	if (hamming_parity == gen_hamming_parity && extra_parity == 0)
+	if (hamming_parity == gen_hamming_parity && extra_parity == 1)
 		return 0;
 
 	/* hamming says error, simple parity says OK => DOUBLE ERROR */