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authorJeff Garzik <jeff@garzik.org>2010-11-27 03:45:47 -0500
committerJeff Garzik <jgarzik@redhat.com>2010-11-27 03:45:47 -0500
commiteeea340b17302c3b82d29a7d2f50238cd1b24af4 (patch)
tree857785ec4e3a7b5a3e3e7009e9f92afa3690a53a
parent4da2e4fbe25e0053a155d026121d645dc660f549 (diff)
sha256_via: add further comments on byte-swapping work
-rw-r--r--sha256_via.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sha256_via.c b/sha256_via.c
index c03495b..8becfd7 100644
--- a/sha256_via.c
+++ b/sha256_via.c
@@ -42,6 +42,8 @@ bool scanhash_via(unsigned char *midstate, const unsigned char *data_in,
/* bitcoin gives us big endian input, but via wants LE,
* so we reverse the swapping bitcoin has already done (extra work)
+ * in order to permit the hardware to swap everything
+ * back to BE again (extra work).
*/
for (i = 0; i < 128/4; i++) {
uint32_t *data32 = (uint32_t *) data;