Update timer.rs

田凯夫 · 田凯夫 · commit 2cc3732ede1b · 2024-03-05T19:11:00.000+08:00
diff --git a/os/src/timer.rs b/os/src/timer.rs
@@ -20,7 +20,7 @@ pub fn get_time() -> usize {
 /// get current time in milliseconds
 #[allow(dead_code)]
 pub fn get_time_ms() -> usize {
-    time::read() / (CLOCK_FREQ / MSEC_PER_SEC)
+    time::read() * MSEC_PER_SEC / CLOCK_FREQ
 }
 
 /// get current time in microseconds

Original file line number	Diff line number	Diff line change
`@@ -20,7 +20,7 @@ pub fn get_time() -> usize {`
`20`	`20`	`/// get current time in milliseconds`
`21`	`21`	`#[allow(dead_code)]`
`22`	`22`	`pub fn get_time_ms() -> usize {`
`23`		`- time::read() / (CLOCK_FREQ / MSEC_PER_SEC)`
	`23`	`+ time::read() * MSEC_PER_SEC / CLOCK_FREQ`
`24`	`24`	`}`
`25`	`25`
`26`	`26`	`/// get current time in microseconds`