On Friday, 23 October 2015 at 15:17:43 UTC, Etienne Cimon wrote:
Hello,
I've been trying to understand this for a while now:
https://github.com/etcimon/botan/blob/master/source/botan/math/mp/mp_core.d#L765
This comparison (looking at it with windbg during cmp
operation) has these invalid values in the respective registers:
rdx: 9366584610601550696
r15: 8407293697099479287
When moving them into a ulong variable with a mov [R11], RDX
before the CMP command, I get:
RDX: 7549031027420429441
R15: 17850297365717953652
Which are the valid values.
Any idea how these values could have gotten corrupted this way?
Is there a signed integer conversion going on behind the scenes?
I found out that there was an integer conversion going on behind
the scenes when using jnl. I had to use jnb
http://stackoverflow.com/questions/27284895/how-to-compare-a-signed-value-and-an-unsigned-value-in-x86-assembly
