emulator/csr_machine_trap_setup.c


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#include "emulator/csr.h"

#include "emulator/hart.h"

static uint32_t csr_misa(Hart* hart, uint32_t v, enum CsrAction a)
{
    uint32_t misa = 0;
    misa |= 1 << 30; // 32-bit
    misa |= 1 << 8;  // Base ISA
    misa |= 1 << 12; // M extension
    misa |= 1 << 18; // Supervisor mode
    misa |= 1 << 20; // User mode
    return misa;
}

void csr_init_machine_trap_setup(Hart* hart)
{
    hart->csrs[CSR_MISA].action = csr_misa;
}