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/// Write 8 bits to port
pub unsafe fn outb(port: u16, val: u8) {
asm!("outb %al, %dx" : : "{dx}"(port), "{al}"(val));
}
/// Read 8 bits from port
pub unsafe fn inb(port: u16) -> u8 {
let ret : u8;
asm!("inb %dx, %al" : "={ax}"(ret) : "{dx}"(port));
return ret;
}
/// Write 16 bits to port
pub unsafe fn outw(port: u16, val: u16) {
asm!("outw %ax, %dx" : : "{dx}"(port), "{al}"(val));
}
/// Read 16 bits from port
pub unsafe fn inw(port: u16) -> u16 {
let ret : u16;
asm!("inw %dx, %ax" : "={ax}"(ret) : "{dx}"(port));
return ret;
}
/// Write 32 bits to port
pub unsafe fn outl(port: u16, val: u32) {
asm!("outl %eax, %dx" : : "{dx}"(port), "{al}"(val));
}
/// Read 32 bits from port
pub unsafe fn inl(port: u16) -> u32 {
let ret : u32;
asm!("inl %dx, %eax" : "={ax}"(ret) : "{dx}"(port));
return ret;
}
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