Update rustc && rustsbi; llvm_asm -> asm

README.md

@@ -5,12 +5,8 @@ rCore-Tutorial version 3.x
 
 ### Binaries
 
-* rustc 1.56.0-nightly (08095fc1f 2021-07-26)
+* rustc 1.56.0-nightly (b03ccace5 2021-08-24)
 
 * qemu: 5.0.0
 
-* rustsbi-lib: 0.2.0-alpha.4
-
-  rustsbi-qemu: d4968dd2
-
-  rustsbi-k210: b689314e
+* rustsbi: qemu[7d71bfb7] k210[563144b0]

rust-toolchain

@@ -1 +1 @@
-nightly
+nightly-2021-08-25

user/src/bin/00hello_world.rs

@@ -1,6 +1,6 @@
 #![no_std]
 #![no_main]
-#![feature(llvm_asm)]
+#![feature(asm)]
 
 #[macro_use]
 extern crate user_lib;
@@ -9,7 +9,7 @@ extern crate user_lib;
 fn main() -> i32 {
     println!("Hello, world!");
     unsafe {
-        llvm_asm!("sret");
+        asm!("sret");
     }
     0
 }

user/src/bin/01store_fault.rs

@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(llvm_asm)]
 
 #[macro_use]
 extern crate user_lib;