C++ (Cpp) openrisc_env_get_cpuの例

コード例 #1

ファイル: interrupt_helper.c プロジェクト: JehandadKhan/dpdk-ovs

void HELPER(rfe)(CPUOpenRISCState *env)
{
    OpenRISCCPU *cpu = openrisc_env_get_cpu(env);
#ifndef CONFIG_USER_ONLY
    int need_flush_tlb = (cpu->env.sr & (SR_SM | SR_IME | SR_DME)) ^
                         (cpu->env.esr & (SR_SM | SR_IME | SR_DME));
#endif
    cpu->env.pc = cpu->env.epcr;
    cpu->env.npc = cpu->env.epcr;
    cpu->env.sr = cpu->env.esr;

#ifndef CONFIG_USER_ONLY
    if (cpu->env.sr & SR_DME) {
        cpu->env.tlb->cpu_openrisc_map_address_data =
            &cpu_openrisc_get_phys_data;
    } else {
        cpu->env.tlb->cpu_openrisc_map_address_data =
            &cpu_openrisc_get_phys_nommu;
    }

    if (cpu->env.sr & SR_IME) {
        cpu->env.tlb->cpu_openrisc_map_address_code =
            &cpu_openrisc_get_phys_code;
    } else {
        cpu->env.tlb->cpu_openrisc_map_address_code =
            &cpu_openrisc_get_phys_nommu;
    }

    if (need_flush_tlb) {
        tlb_flush(&cpu->env, 1);
    }
#endif
    cpu->env.interrupt_request |= CPU_INTERRUPT_EXITTB;
}

コード例 #2

ファイル: int_helper.c プロジェクト: Icenowy/qemu

uint32_t HELPER(mul32)(CPUOpenRISCState *env,
                       uint32_t ra, uint32_t rb)
{
    uint64_t result;
    uint32_t high, cy;

    OpenRISCCPU *cpu = openrisc_env_get_cpu(env);

    result = (uint64_t)ra * rb;
    /* regisiers in or32 is 32bit, so 32 is NOT a magic number.
       or64 is not handled in this function, and not implement yet,
       TARGET_LONG_BITS for or64 is 64, it will break this function,
       so, we didn't use TARGET_LONG_BITS here.  */
    high = result >> 32;
    cy = result >> (32 - 1);

    if ((cy & 0x1) == 0x0) {
        if (high == 0x0) {
            return result;
        }
    }

    if ((cy & 0x1) == 0x1) {
        if (high == 0xffffffff) {
            return result;
        }
    }

    cpu->env.sr |= (SR_OV | SR_CY);
    if (cpu->env.sr & SR_OVE) {
        raise_exception(cpu, EXCP_RANGE);
    }

    return result;
}

コード例 #3

ファイル: exception_helper.c プロジェクト: 32bitmicro/riscv-qemu

void HELPER(exception)(CPUOpenRISCState *env, uint32_t excp)
{
    OpenRISCCPU *cpu = openrisc_env_get_cpu(env);

    raise_exception(cpu, excp);
}