x86 0.0.8

Library to program x86 (amd64) hardware. Contains x86 specific data structure descriptions, as well as convenience function to call assembly instructions typically not exposed in higher level languages.
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/// Extended Feature Enables
pub const IA32_EFER: u32 = 0xC0000080;

/// System Call Target Address (R/W)
pub const IA32_STAR: u32 = 0xC0000081;

/// IA-32e Mode System Call Target Address
pub const IA32_LSTAR: u32 = 0xC0000082;

/// System Call Flag Mask (R/W)
pub const IA32_FMASK: u32 = 0xC0000084;

/// Write 64 bits to msr register.
pub unsafe fn wrmsr(msr: u32, value: u64) {
    let low = value as u32;
    let high = (value >> 32) as u32;
    asm!("wrmsr" :: "{ecx}" (msr), "{eax}" (low), "{edx}" (high) );
}

/// Read 64 bits msr register.
pub unsafe fn rdmsr(msr: u32) -> u64 {
    let mut low = 0;
    let mut high = 0;
    asm!("rdmsr" : "={eax}" (low), "={edx}" (high) : "{ecx}" (msr));

    (high << 32) | low
}