From 718776d7f098c534cecea6343d6afec93e1f21b3 Mon Sep 17 00:00:00 2001
From: Stefan Reinauer <stefan.reinauer@coreboot.org>
Date: Fri, 11 Jul 2025 18:57:29 -0700
Subject: [PATCH] intreg: NCR_INT is low active,

---
 RTL/intreg_access.v | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/RTL/intreg_access.v b/RTL/intreg_access.v
index 07949ba..eabbf73 100644
--- a/RTL/intreg_access.v
+++ b/RTL/intreg_access.v
@@ -76,7 +76,7 @@ always @(posedge CLK or negedge RESET_n) begin
         // 1. Latch the interrupt from the SCSI chip (from U207)
         // This creates a stable interrupt signal that only changes between Zorro cycles.
         if (!FCS_n) begin
-            if(NCR_INT) int_pending <= 1'b1;
+            if(~NCR_INT) int_pending <= 1'b1; // NCR_INT is low active
         end else begin
             // Clear pending interrupt if an IACK cycle completes
             if (iack_dtack_n == 1'b0) begin