1 files changed, 1 insertions, 1 deletions
diff --git a/bignum.s b/bignum.s
index 06e99ab..27580d5 100644
--- a/bignum.s
+++ b/bignum.s
@@ -312,7 +312,7 @@ _big_cmp:
  ; subtract (and throw away the result, only care about sign)
  jsr FSUB ; FR0 = FR0 - FR1
 
- ldx #0
  lda FR0  ; exponent has sign bit, and happily is 0 if the result was 0!
+ tax      ; sign extension, grr.
  rts