[sha1-asm] fixing bug when *_lastBlock is used to hash multiple blocks, thanks to Alex

2013-01-20 22:57:05 +01:00 · 2013-01-20 22:57:05 +01:00 · 5a83cf2b01
parent ca591a22fb
commit 5a83cf2b01
1 changed files with 2 additions and 2 deletions
--- a/sha1/sha1-asm.S
+++ b/sha1/sha1-asm.S
@ -284,8 +284,8 @@ sha1_lastBlock:
 	pop r25
 	subi r21, 2
 	ldi r19, 64
-	sub r22, r19
-	sbc r23, r1
+	add r22, r19
+	adc r23, r1
 	rjmp sha1_lastBlock
 sha1_lastBlock_prolog:
 	/* allocate space on stack */