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const fmt = @import("std").fmt;
const Writer = @import("std").io.Writer;
fn inb(port: u16) u8 {
return asm volatile ("inb %[port], %[result]"
: [result] "={al}" (-> u8),
: [port] "{dx}" (port),
);
}
fn outb(port: u16, data: u8) void {
asm volatile ("outb %[data], %[port]"
:
: [port] "{dx}" (port),
[data] "{al}" (data),
);
}
pub fn write(data: []const u8) void {
for (data) |x| {
outb(0xe9, x);
}
}
pub const writer = Writer(void, error{}, callback){ .context = {} };
fn callback(_: void, string: []const u8) error{}!usize {
write(string);
return string.len;
}
pub fn printf(comptime format: []const u8, args: anytype) void {
fmt.format(writer, format, args) catch unreachable;
}
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