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|
use core::arch::asm;
// put a few cycles of delay after IO ops
use super::misc::delay;
#[inline(always)]
pub fn inw(p: u16) -> u16 {
let result: u16;
unsafe {
asm!("in ax, dx",
in("dx") p,
out("ax") result
)
}
delay();
result
}
#[inline(always)]
pub fn inb(p: u16) -> u8 {
let result: u8;
unsafe {
asm!("in al, dx",
in("dx") p,
out("al") result
)
}
delay();
result
}
#[inline(always)]
pub fn outb(p: u16, val: u8) {
unsafe {
asm!("out dx, al",
in("dx") p,
in("al") val,
)
}
delay();
}
#[inline(always)]
pub fn outw(p: u16, val: u16) {
unsafe {
asm!("out dx, ax",
in("dx") p,
in("ax") val,
)
}
delay();
}
|
