diff options
| -rw-r--r-- | riscv/csrs.cc | 5 | ||||
| -rw-r--r-- | riscv/csrs.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/riscv/csrs.cc b/riscv/csrs.cc index 4900581..4a612e5 100644 --- a/riscv/csrs.cc +++ b/riscv/csrs.cc @@ -1549,6 +1549,11 @@ void henvcfg_csr_t::verify_permissions(insn_t insn, bool write) const { masked_csr_t::verify_permissions(insn, write); } +bool henvcfg_csr_t::unlogged_write(const reg_t val) noexcept { + const reg_t mask = menvcfg->read() | ~(MENVCFG_PBMTE | MENVCFG_STCE | MENVCFG_ADUE); + return envcfg_csr_t::unlogged_write((masked_csr_t::read() & ~mask) | (val & mask)); +} + stimecmp_csr_t::stimecmp_csr_t(processor_t* const proc, const reg_t addr, const reg_t imask): basic_csr_t(proc, addr, 0), intr_mask(imask) { } diff --git a/riscv/csrs.h b/riscv/csrs.h index 990c301..2595243 100644 --- a/riscv/csrs.h +++ b/riscv/csrs.h @@ -490,6 +490,9 @@ class henvcfg_csr_t final: public envcfg_csr_t { virtual void verify_permissions(insn_t insn, bool write) const override; + protected: + virtual bool unlogged_write(const reg_t val) noexcept override; + private: csr_t_p menvcfg; }; |