SIM: add logtimer's sink/source && reg's difftest to env.FPGAPlatform
Remove the final 'BoringUtils'
Merge remote-tracking branch 'origin/master' into dev-memend
Merge remote-tracking branch 'origin/master' into perf-debug
[WIP] Memend: fix mem rf port width, add tlbFeedback
[WIP] loadPipeline: fix wiring for loadPipeline
mem,lsq: remove instIsStore and use commitType instead
perf: add commit time debug
perf: add debug info for timer
[WIP] Lsroq: fix unified lsroq wiring
renameTable: update spec_table when flushPipe
freelist: reset headPtr to tailPtrNext in case of exception or flushPipe
Rename: assign DontCare to lrscValid in rename toget rid of firrtl errors.
Roq: add flush pipe logic for fence instr
dispatch queue: dont reset preg state if idest is 0
Busytable: Add support for setting preg state to busy when replay
lsroq: rename moq to lsroq
Merge master into temp-lsu-test
Merge remote-tracking branch 'origin/master' into frontend-temp
Merge master into dev-fronend
Rename: remove unnesscary logic
BusyTable: use a 128-bit uint instead vec(128, bool)
ParallelMux: use generic type T instead UInt
Rename: simplify hand shake logic
Block insts at rename when 'roq walk'
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