refactor: promote new architecture to repository root

Archive the deprecated implementation under lume-legacy, make the new kernel the default root-level build, and update repository entry points without changing kernel behavior.

1 files changed, 55 insertions, 0 deletions

diff --git a/lume-legacy/include/kernel/trap.h b/lume-legacy/include/kernel/trap.h
new file mode 100644
index 0000000..ddc1d12
--- /dev/null
+++ b/lume-legacy/include/kernel/trap.h
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2026 Richard QIn
+ */
+
+#pragma once
+#include "common/types.h"
+
+struct Trapframe
+{
+    /* 0 */ uint64 kernel_satp;
+    /* 8 */ uint64 kernel_sp;
+    /* 16 */ uint64 kernel_trap;
+    /* 24 */ uint64 epc;
+    /* 32 */ uint64 kernel_hartid;
+
+    /* 40 */ uint64 ra;   // x1
+    /* 48 */ uint64 sp;   // x2
+    /* 56 */ uint64 gp;   // x3
+    /* 64 */ uint64 tp;   // x4
+    /* 72 */ uint64 t0;   // x5
+    /* 80 */ uint64 t1;   // x6
+    /* 88 */ uint64 t2;   // x7
+    /* 96 */ uint64 s0;   // x8 (Frame Pointer)
+    /* 104 */ uint64 s1;  // x9
+    /* 112 */ uint64 a0;  // x10
+    /* 120 */ uint64 a1;  // x11
+    /* 128 */ uint64 a2;  // x12
+    /* 136 */ uint64 a3;  // x13
+    /* 144 */ uint64 a4;  // x14
+    /* 152 */ uint64 a5;  // x15
+    /* 160 */ uint64 a6;  // x16
+    /* 168 */ uint64 a7;  // x17
+    /* 176 */ uint64 s2;  // x18
+    /* 184 */ uint64 s3;  // x19
+    /* 192 */ uint64 s4;  // x20
+    /* 200 */ uint64 s5;  // x21
+    /* 208 */ uint64 s6;  // x22
+    /* 216 */ uint64 s7;  // x23
+    /* 224 */ uint64 s8;  // x24
+    /* 232 */ uint64 s9;  // x25
+    /* 240 */ uint64 s10; // x26
+    /* 248 */ uint64 s11; // x27
+    /* 256 */ uint64 t3;  // x28
+    /* 264 */ uint64 t4;  // x29
+    /* 272 */ uint64 t5;  // x30
+    /* 280 */ uint64 t6;  // x31
+};
+
+namespace Trap
+{
+    void init();
+    void inithart();
+    int devintr();
+}
\ No newline at end of file