Andrew Waterman and Andrew Waterman
8225676a86
For FMIN(sNaN, x) and FMIN(qNaN, qNaN), return canonical NaN
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See https://github.com/riscv/riscv-isa-sim/issues/76
2017-02-02 11:55:08 -08:00
Andrew Waterman and Andrew Waterman
75edf42323
Set xPIE=1 on xRET
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We were setting xPIE=0 instead. This is a benign bug, but still a bug.
2017-02-02 11:55:08 -08:00
Andrew Waterman and Henry Cook
f1cb06142e
bump tools
2017-01-11 13:21:55 -08:00
Andrew Waterman and Henry Cook
71c4b000b3
Don't special-case power-of-2 replacement policy for BTB
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PLRU wasn't implemented correctly for the BTB, since it wasn't
increasing the priority on replacement, only on usage. Regardless,
this should be a second-order effect, so using FIFO always is fine.
2017-01-11 13:21:55 -08:00
Andrew Waterman and Henry Cook
5f3fb64ef0
Per ABI, only x1 and x5 should be treated as function returns
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We were doing so for x3 and x7, as well, which could reduce performance
for compilers that happen to perform indirect jumps via t2 (x7).
2016-11-22 12:01:05 -08:00
Andrew Waterman and Howard Mao
8a7fc75b53
fix metadata race in blocking L1 DCache
2016-07-28 17:54:28 -07:00
Andrew WatermanandAndrew Waterman
