From 27fc7bda593c8bd2c24a334a368772b5f15d4e9e Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Thu, 11 Dec 2025 16:34:51 +0800
Subject: feat:Cooperative Multitasking

---
 src/kernel/proc/swtch.S | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 src/kernel/proc/swtch.S

(limited to 'src/kernel/proc/swtch.S')

diff --git a/src/kernel/proc/swtch.S b/src/kernel/proc/swtch.S
new file mode 100644
index 0000000..f59de20
--- /dev/null
+++ b/src/kernel/proc/swtch.S
@@ -0,0 +1,34 @@
+.global swtch
+
+swtch:
+    sd ra, 0(a0)
+    sd sp, 8(a0)
+    sd s0, 16(a0)
+    sd s1, 24(a0)
+    sd s2, 32(a0)
+    sd s3, 40(a0)
+    sd s4, 48(a0)
+    sd s5, 56(a0)
+    sd s6, 64(a0)
+    sd s7, 72(a0)
+    sd s8, 80(a0)
+    sd s9, 88(a0)
+    sd s10, 96(a0)
+    sd s11, 104(a0)
+
+    ld ra, 0(a1)
+    ld sp, 8(a1)
+    ld s0, 16(a1)
+    ld s1, 24(a1)
+    ld s2, 32(a1)
+    ld s3, 40(a1)
+    ld s4, 48(a1)
+    ld s5, 56(a1)
+    ld s6, 64(a1)
+    ld s7, 72(a1)
+    ld s8, 80(a1)
+    ld s9, 88(a1)
+    ld s10, 96(a1)
+    ld s11, 104(a1)
+
+    ret
-- 
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