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Diffstat (limited to 'src/machine.adoc')
| -rw-r--r-- | src/machine.adoc | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/src/machine.adoc b/src/machine.adoc index 1b8c2ff..cd2159b 100644 --- a/src/machine.adoc +++ b/src/machine.adoc @@ -1586,13 +1586,6 @@ include::images/bytefield/hpmevents.adoc[] The `mhpmcounters` are *WARL* registers that support up to 64 bits of precision on RV32 and RV64. -[NOTE] -==== -A future revision of this specification will define a mechanism to -generate an interrupt when a hardware performance monitor counter -overflows. -==== - When XLEN=32, reads of the `mcycle`, `minstret`, `mhpmcounter__n__`, and `mhpmevent__n__` CSRs return bits 31-0 of the corresponding register, and writes change only bits 31-0; reads of the `mcycleh`, `minstreth`, `mhpmcounter__n__h`, and `mhpmevent__n__h` |