C++ (Cpp) openrisc_cpu_do_interrupt示例

示例#1

文件： interrupt.c 项目： InvLim/qemu-old

bool openrisc_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
{
    OpenRISCCPU *cpu = OPENRISC_CPU(cs);
    CPUOpenRISCState *env = &cpu->env;
    int idx = -1;

    if ((interrupt_request & CPU_INTERRUPT_HARD) && (env->sr & SR_IEE)) {
        idx = EXCP_INT;
    }
    if ((interrupt_request & CPU_INTERRUPT_TIMER) && (env->sr & SR_TEE)) {
        idx = EXCP_TICK;
    }

	// Here's where we set our custom interrupt; I can trace execution to here in GDB,
	// but FreeRTOS doesn't know what to do with this interrupt so it freaks out - DRM
    if ((interrupt_request & CPU_INTERRUPT_CUSTOM) && (env->sr & SR_IEE)) {
        idx = EXCP_CUSTOM;
    }
    if (idx >= 0) {
        cs->exception_index = idx;
        openrisc_cpu_do_interrupt(cs);
        return true;
    }
    return false;
}

示例#2

文件： interrupt.c 项目： curtiszimmerman/orp

bool openrisc_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
{
    OpenRISCCPU *cpu = OPENRISC_CPU(cs);
    CPUOpenRISCState *env = &cpu->env;
    int idx = -1;

    if ((interrupt_request & CPU_INTERRUPT_HARD) && (env->sr & SR_IEE)) {
        idx = EXCP_INT;
    }
    if ((interrupt_request & CPU_INTERRUPT_TIMER) && (env->sr & SR_TEE)) {
        idx = EXCP_TICK;
    }

    // Set up custom interrupts -- make sure to disable the interrupt here,
    // or it will get thrown multiple times
    if ((interrupt_request & CPU_INTERRUPT_FFS_WRITE) && (env->sr & SR_IEE)) {
        idx = EXCP_FFS_WRITE;
        cs->interrupt_request &= ~(CPU_INTERRUPT_FFS_WRITE);
    }

    if ((interrupt_request & CPU_INTERRUPT_FFS_ACK) && (env->sr & SR_IEE)) {
        idx = EXCP_FFS_ACK;
        cs->interrupt_request &= ~(CPU_INTERRUPT_FFS_ACK);
    }
    if (idx >= 0) {
        cs->exception_index = idx;
        openrisc_cpu_do_interrupt(cs);
        return true;
    }
    return false;
}

示例#3

文件： interrupt.c 项目： AmesianX/panda

bool openrisc_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
{
    OpenRISCCPU *cpu = OPENRISC_CPU(cs);
    CPUOpenRISCState *env = &cpu->env;
    int idx = -1;

    if ((interrupt_request & CPU_INTERRUPT_HARD) && (env->sr & SR_IEE)) {
        idx = EXCP_INT;
    }
    if ((interrupt_request & CPU_INTERRUPT_TIMER) && (env->sr & SR_TEE)) {
        idx = EXCP_TICK;
    }
    if (idx >= 0) {
        cs->exception_index = idx;
        openrisc_cpu_do_interrupt(cs);
        return true;
    }
    return false;
}