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ableos-framebuffer/ableos/src/port_io.rs
2022-04-25 13:39:39 -05:00

25 lines
438 B
Rust

use cpuio::{inb, inl, inw, outb, outl, outw};
pub fn read32(reg: u16) -> u32 {
unsafe { inl(reg) }
}
pub fn read16(reg: u16) -> u16 {
unsafe { inw(reg) as u16 }
}
pub fn read8(reg: u16) -> u8 {
unsafe { inb(reg) }
}
pub fn write32(reg: u16, val: u32) {
unsafe { outl(val, reg) }
}
pub fn write16(reg: u16, val: u16) {
unsafe { outw(val, reg) }
}
pub fn write8(reg: u16, val: u8) {
unsafe { outb(val, reg) }
}