[Libre-soc-bugs] [Bug 657] unit tests needed for BCD instructions
bugzilla-daemon at libre-soc.org
bugzilla-daemon at libre-soc.org
Tue Aug 10 21:23:05 BST 2021
https://bugs.libre-soc.org/show_bug.cgi?id=657
--- Comment #6 from dmitry.selyutin at 3mdeb.com ---
(In reply to dmitry.selyutin from comment #4)
> As an example, attempting to convert BCD 010 to DPD yields 0x008 instead of 0x010. Will investigate it.
Never mind, I'm stupid. These are not numbers in range 0..999, these are (what
a surprise, huh?) binary coded decimals. So when they write 010... it actually
means 0b000000010000 ((0x0 << 8) | (0x1 << 4) | (0x0 << 0)).
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