From c9e92348a645842c47149ddd5ce3e418134470dc Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Sun, 6 Oct 2024 19:57:17 +0200
Subject: [PATCH] Handle inf/nan if dummy2 flag is set

---
 kernel/power/scal_ppc440.S | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/power/scal_ppc440.S b/kernel/power/scal_ppc440.S
index d977b0b59..014e3989e 100644
--- a/kernel/power/scal_ppc440.S
+++ b/kernel/power/scal_ppc440.S
@@ -63,6 +63,8 @@
 #endif
 #endif
 
+#define FLAG	r11
+
 #define FZERO	f0
 #define ALPHA	f1
 
@@ -88,6 +90,10 @@
 	fcmpu	cr0, FZERO, ALPHA
 	bne-	cr0, LL(A1I1)
 
+        lwz     FLAG, FRAMESLOT(0)(SP)
+        cmpwi   cr0, FLAG, 1
+        beq-    cr0, LL(A1I1)
+
 	srawi.	r0, N, 4
 	mtspr	CTR, r0
 	beq-	cr0, LL(A0I1_Remain)