5 Commits

Author	SHA1	Message	Date
Luke Wren	0766ec6f8a	First pass at adding branch prediction	2022-06-15 02:05:46 +01:00
Luke Wren	3703b1fc4c	Allow use of cir_flush_behind in frontend_match formal tb	2022-06-13 20:36:15 +01:00
Luke Wren	e68d8a6cd6	Fix two frontend bugs: possibility for fetch to be blocked at CIR whilst also not going to FIFO (fixed by making those signals the complement of each other) and typo in the shift value for shifting into a CIR with 32 bits of contents, which is only reachable via a CIR-locked branch to an unaligned address.	2022-06-13 01:23:32 +01:00
Luke Wren	23b4dbe7f3	Redesign fetch queue: 2x32 + 3x16 -> 6x16. ... Should make it easier to support finer-grained flushing, and handle predicted branches cleanly.	2022-06-12 02:44:08 +01:00
Luke Wren	d5a202e4a5	Add standalone frontend formal tb	2022-06-11 20:14:24 +01:00