diff options
Diffstat (limited to 'riscv/sim.h')
-rw-r--r-- | riscv/sim.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/riscv/sim.h b/riscv/sim.h index 6c6e435..9a0a10b 100644 --- a/riscv/sim.h +++ b/riscv/sim.h @@ -15,8 +15,19 @@ class mmu_t; class remote_bitbang_t; +// this is the interface to the simulator used by the processors and memory +class simif_t +{ +public: + // should return NULL for MMIO addresses + virtual char* addr_to_mem(reg_t addr) = 0; + // used for MMIO addresses + virtual bool mmio_load(reg_t addr, size_t len, uint8_t* bytes) = 0; + virtual bool mmio_store(reg_t addr, size_t len, const uint8_t* bytes) = 0; +}; + // this class encapsulates the processors and memory in a RISC-V machine. -class sim_t : public htif_t +class sim_t : public htif_t, public simif_t { public: sim_t(const char* isa, size_t _nprocs, bool halted, reg_t start_pc, |