fix compile errors in newer environment

[proxmark3-svn] / armsrc / crypto1.c

diff --git a/armsrc/crypto1.c b/armsrc/crypto1.c
index 9d103c7f553ab285fd2410f8ad3a53e8d1e4fb39..3d56fab400947a3ceafcacfc327753e2f7668a52 100644 (file)
--- a/armsrc/crypto1.c
+++ b/armsrc/crypto1.c
@@ -52,6 +52,7 @@ uint8_t crypto1_bit(struct Crypto1State *s, uint8_t in, int is_encrypted)
 {
        uint32_t feedin;
        uint8_t ret = filter(s->odd);
+       uint32_t tmp;
 
        feedin  = ret & !!is_encrypted;
        feedin ^= !!in;
@@ -59,7 +60,9 @@ uint8_t crypto1_bit(struct Crypto1State *s, uint8_t in, int is_encrypted)
        feedin ^= LF_POLY_EVEN & s->even;
        s->even = s->even << 1 | parity(feedin);
 
-       s->odd ^= (s->odd ^= s->even, s->even ^= s->odd);
+       tmp = s->odd;
+       s->odd = s->even;
+       s->even = tmp;
 
        return ret;
 }