/***
    Copyright (C) 2024 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: Clocks.aarch64.cpp
    Date: 2024-01-02
    Author: Reece
***/
#include <Source/RuntimeInternal.hpp>

AUKN_SYM AuUInt64 ArmQueryClockCounter()
{
    AuUInt64 uValue {};
#if defined(AURORA_COMPILER_MSVC)
    uValue = _ReadStatusReg(CNTVCT_EL0);
#else
    asm volatile ("mrs %0, CNTVCT_EL0; isb; " : "=r" (uValue));
#endif
    return uValue;
}

AUKN_SYM AuUInt64 ArmQueryClockFrequency()
{
    AuUInt64 uClockFreq {};
#if defined(defined(AURORA_COMPILER_MSVC))
    uClockFreq = _ReadStatusReg(CNTFRQ_EL0);
#else
    asm volatile ("mrs %0, CNTFRQ_EL0; isb; " : "=r" (uClockFreq));
#endif
    return uClockFreq;
}