From 3c163a5936971aa39bce329b875ce483ec52ec14 Mon Sep 17 00:00:00 2001
From: TermiNexus <wyt18222152539wyt@163.com>
Date: Wed, 26 Aug 2026 18:16:09 +0800
Subject: [PATCH] =?UTF-8?q?debug(boot):=20sti=20=E5=90=8E=E8=BD=AF?=
 =?UTF-8?q?=E4=BB=B6=E8=A7=A6=E5=8F=91=20int=200x20=EF=BC=8C=E4=BA=8C?=
 =?UTF-8?q?=E5=88=86=E5=AE=9A=E4=BD=8D=E4=B8=AD=E6=96=AD=E4=B8=8D=E9=80=81?=
 =?UTF-8?q?=E8=BE=BE?=
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APIC LINT0=EXTINT 已配置但仍无定时中断。加 int 0x20（向量 32）软件触发：
- 有 T → IDT gate 32 正常，问题在 PIT/PIC 硬件送达
- 无 T → IDT/lidt 问题
用后移除。
---
 VKernel/Kernel/main.vp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/VKernel/Kernel/main.vp b/VKernel/Kernel/main.vp
index 7d17b4e..c74600d 100644
--- a/VKernel/Kernel/main.vp
+++ b/VKernel/Kernel/main.vp
@@ -81,6 +81,11 @@ class ViperKernel:
         asm.sti()
         serial.puts("[main] sti done\n")
 
+        # [DBG] 软件触发向量 32：验证 IDT gate 是否生效（用后移除）
+        # 有 "T" → IDT 正常，问题在 PIT/PIC 硬件送达；无 "T" → IDT/lidt 问题
+        c.Asm("int 0x20", op=[t.ASM_DESCR.CLOBBER_MEMORY])
+        serial.puts("[main] int20 test done\n")
+
         timer.timer_msleep(100)
         serial.puts("[main] msleep done\n")
         rtc.rtc_init()