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RV64 with H and Ssnpm: hstatus.HUPMM is read-only zero

Status: Open.

#86 In tenstorrent/whisper;

· davidharrishmc opened on Sep 30, 2026

SRET executed in VS-mode takes the landing-pad enable from hstatus.SPV, so it does not restore ELP from vsstatus.SPELP

Status: Open.

#85 In tenstorrent/whisper;

· davidharrishmc opened on Sep 30, 2026

RV32: VS-mode access to hstateen0h succeeds instead of raising a virtual-instruction exception

Status: Open.

#84 In tenstorrent/whisper;

· davidharrishmc opened on Sep 30, 2026

RV32 with H: mtinst/htinst for a faulting c.fsw has rs1 and rs2 swapped

Status: Open.

#83 In tenstorrent/whisper;

· davidharrishmc opened on Sep 30, 2026

RV64 Zicfilp: mstatus.SPELP/MPELP are not writable and traps do not record ELP in MPELP

Status: Open.

#82 In tenstorrent/whisper;

· davidharrishmc opened on Sep 29, 2026

The ssp CSR exists when Zicfiss is not implemented

Status: Open.

#77 In tenstorrent/whisper;

· davidharrishmc opened on Sep 29, 2026

Remove mention of RISCOF from README and replace with instructions to use ACT4

Status: Open.

#71 In tenstorrent/whisper;

· jordancarlin opened on Sep 26, 2026

Wrong agnostic behavior for overlapping destination and source operands with different EEW

Status: Open.

#69 In tenstorrent/whisper;

· kseniadobrovolskaya opened on Sep 25, 2026

RV32 mhpmeventNh should be writable when Sscofpmf is enabled

Status: Open.

#65 In tenstorrent/whisper;

· davidharrishmc opened on Sep 24, 2026

AIA IMSIC CSRs stopei (0x15C) / vstopei (0x25C) treated as unimplemented: every access raises illegal-instruction, breaking VS-mode virtual-instruction semantics and hstateen0.IMSIC gating

Status: Open.

#62 In tenstorrent/whisper;

· jamesbeyond opened on Sep 17, 2026

VS-mode WFI is never trapped: hstatus.VTW=1 (cause 22) and mstatus.TW=1 (cause 2) both ignored

Status: Open.

#57 In tenstorrent/whisper;

· jamesbeyond opened on Sep 14, 2026

VS-mode timer interrupt (vstimecmp / VSTIP) is not delivered to VS-mode when hideleg[6]=1

Status: Open.

#56 In tenstorrent/whisper;

· jamesbeyond opened on Sep 14, 2026