Commit Graph

8 Commits

Author SHA1 Message Date
Luke Wren 0a369efc06 Add single-port bus compliance. Fix adapter not re-arbitrating following an ERROR response, causing a squashed younger load-store to remain presented to the bus. 2021-12-18 15:41:05 +00:00
Luke Wren 1b0e205f87 Fix bad AMO asserts. Fix hwdata instability during stalled AMO write dphase, which meant AMOs were fundamentally broken following yesterday's datapath origami 2021-12-18 14:51:46 +00:00
Luke Wren 449348f459 Fix bug where an IRQ can fire during load/store dphase, followed by dphase bus exception.
Result was that the exception would sample the IRQ vector PC rather than the load/store instruction PC.
Fix by fencing off on in-flight dphases before asserting the IRQ. This adds a cycle of jitter
to IRQs, but is required for correct operation without adding a full exception-gathering pipeline.
2021-12-07 19:24:53 +00:00
Luke Wren dbc331dbb4 Add exclusives bus properties 2021-12-07 05:47:25 +00:00
Luke Wren 93be227d8a Add (currently failing) trap entry property. Fails when an IRQ arrives during a load/store data phase which subsequently excepts. 2021-12-06 20:12:23 +00:00
Luke Wren 16dc905dce Add simple formal bus properties check 2021-05-30 10:19:42 +01:00
Luke Wren 089bcc7c43 Typo 2021-05-29 23:24:18 +01:00
Luke Wren 90acfdcbe8 Organise test directory into formal and sim 2021-05-23 07:42:35 +01:00