zxq5
3966e697da
- reorganised the entire project so that the entire kernel is a single codebase rather than a kernel and a libk.
30 lines
533 B
Rust
30 lines
533 B
Rust
//! Functions for IO using ports.
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use core::arch::asm;
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#[inline]
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pub fn inb(port: u16) -> u8 {
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let value: u8;
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unsafe {
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asm!(
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"in al, dx",
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out("al") value,
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in("dx") port,
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options(nomem, nostack, preserves_flags)
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);
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}
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value
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}
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#[inline]
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pub fn outb(port: u16, value: u8) {
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unsafe {
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asm!(
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"out dx, al",
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in("dx") port,
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in("al") value,
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options(nomem, nostack, preserves_flags)
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);
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}
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}
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