HALKit/AMD64/HardwareAPIC.cpp


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/*
 *	========================================================
 *
 *	hCore
 * 	Copyright 2024 Mahrouss Logic, all rights reserved.
 *
 * 	========================================================
 */

#include <ArchKit/Arch.hpp>

// bugs = 0

namespace hCore
{
    // @brief wakes up thread.
    // wakes up thread from hang.
    void rt_wakeup_thread(HAL::StackFrame* stack)
    {
        __asm__ volatile ("cli");

        stack->Rbp = stack->R15;
        stack->Rsi = stack->Rbp;

        __asm__ volatile ("sti");
    }
    
    static void __rt_hang_proc(void)
    {
        while (1)
            ;
    }

    // @brief makes thread sleep.
    // hooks and hangs thread to prevent code from executing.
    void rt_hang_thread(HAL::StackFrame* stack)
    {
        __asm__ volatile ("cli");

        stack->R15 = stack->Rbp;
        stack->Rbp = (HAL::Reg)&__rt_hang_proc;
        stack->Rsp = stack->Rbp;

        __asm__ volatile ("sti");
    }
}