VUnit
Unaligned addresses with axi_read_slave
Fixing how axi_read_slave handles unaligned addresses.
Let's say your memory looks like this: byte 0 = 0x00 byte 1 = 0x01 byte 2 = 0x02 byte 3 = 0x03 byte 4 = 0x04 byte 5 = 0x05
AXI4 read request looks like this: bus width = 4 bytes ARADR = 2 ARLEN = 0 (1 word)
On RDATA I would expect to see 0x03020100 or maybe 0x0302---- since the lower 2 bytes aren't valid.
Instead you get 0x03020504 for the first transfer, 0x07060908 for the second, etc. This change fixes the rotated data.
Mentioned in #851 but not exactly the same issue.
Any word on when this might be able to be merged? I heard something about breaking verification components out into a different repo -- planning to wait for that first?
@LarsAsplund -- any chance of getting this released as a 4.7.1 patch? We've had internal tools pointing to this branch for a while now but would be nice to get rid of that workaround.