From 0c200b792090cda95e3fd17ba4de334227b5755b Mon Sep 17 00:00:00 2001
From: Harley Travis <harleytravis123@outlook.com>
Date: Mon, 22 Jun 2026 02:10:42 -0500
Subject: Add patches to enable the FDC IRQ on startup

---
 Kernel/Patches/IntsInitFDC.HC | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 Kernel/Patches/IntsInitFDC.HC

(limited to 'Kernel/Patches/IntsInitFDC.HC')

diff --git a/Kernel/Patches/IntsInitFDC.HC b/Kernel/Patches/IntsInitFDC.HC
new file mode 100644
index 0000000..5cd3254
--- /dev/null
+++ b/Kernel/Patches/IntsInitFDC.HC
@@ -0,0 +1,19 @@
+// PATCH: Make IntsInit() unmask IRQ6
+// FILE: ::/Kernel/KInts.HC
+// TO INSTALL: Comment out the original fun.
+// THEN: #include this file after it.
+
+U0 IntsInit()
+{//Init 8259
+  OutU8(0x20,0x11); //IW1
+  OutU8(0xA0,0x11); //IW1
+  OutU8(0x21,0x20); //IW2
+  OutU8(0xA1,0x28); //IW2
+  OutU8(0x21,0x04); //IW3
+  OutU8(0xA1,0x02); //IW3
+  OutU8(0x21,0x0D); //IW4
+  OutU8(0xA1,0x09); //IW4
+  //Mask all but IRQ0 (timer), IRQ2 Cascade, and IRQ6 (floppy).
+  OutU8(0x21,0xFA);
+  OutU8(0xA1,0xFF);
+}
\ No newline at end of file
-- 
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