From 493159b9bb1a764926daa49fb09bff8f29e8e9e5 Mon Sep 17 00:00:00 2001
From: Mole Shang <135e2@135e2.dev>
Date: Thu, 18 Jan 2024 17:35:27 +0800
Subject: lab syscall: finish

---
 answers-syscall.txt | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 answers-syscall.txt

(limited to 'answers-syscall.txt')

diff --git a/answers-syscall.txt b/answers-syscall.txt
new file mode 100644
index 0000000..ca0ce77
--- /dev/null
+++ b/answers-syscall.txt
@@ -0,0 +1,9 @@
+usertrap()
+7
+SYS_exec
+user mode
+lw	a3,0(zero)
+a3
+no
+yes, `scause` 0xd -> interrupt = 0, exception code = 13 -> instruction page fault (riscv-priviledged p71)
+'initcode', 1
-- 
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