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Add comments in ch6

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This commit is contained in:
hypocrasy 2022-04-30 16:04:58 +08:00
parent cea2febe35
commit f9346edad1
35 changed files with 374 additions and 116 deletions
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3
os/src/console.rs
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@ -1,3 +1,4 @@
//! SBI console driver, for text output
use crate::sbi::console_putchar;
use core::fmt::{self, Write};
@ -17,6 +18,7 @@ pub fn print(args: fmt::Arguments) {
}
#[macro_export]
/// print string macro
macro_rules! print {
($fmt: literal $(, $($arg: tt)+)?) => {
$crate::console::print(format_args!($fmt $(, $($arg)+)?));
@ -24,6 +26,7 @@ macro_rules! print {
}
#[macro_export]
/// println string macro
macro_rules! println {
($fmt: literal $(, $($arg: tt)+)?) => {
$crate::console::print(format_args!(concat!($fmt, "\n") $(, $($arg)+)?));