From dcef17c3ada541e03f0128a002c43d14a9f99834 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Sat, 24 May 2025 06:38:41 -0700
Subject: [PATCH] add handling of dummy2 flag

---
 kernel/mips64/zscal.S | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/mips64/zscal.S b/kernel/mips64/zscal.S
index f11b1c8d0..6e7d6f098 100644
--- a/kernel/mips64/zscal.S
+++ b/kernel/mips64/zscal.S
@@ -48,6 +48,7 @@
 #define TEMP	$3
 
 #define XX	$5
+#define DUMMY2  $6
 
 #define ALPHA_R	$f15
 #define ALPHA_I	$f16
@@ -74,6 +75,9 @@
 	blez	N, .L999
 	dsll	INCX, INCX, ZBASE_SHIFT
 
+	LDARG   DUMMY2, 8(sp)
+	dsll	DUMMY2, DUMMY2, ZBASE_SHIFT
+
 	CMPEQ	$fcc0, ALPHA_R, a1
 	CMPEQ	$fcc1, ALPHA_I, a1
 
@@ -83,6 +87,8 @@
 	bc1f	$fcc1, .L50
 	NOP
 
+	beq	DUMMY2, TEMP, .L50
+
 	bne	INCX, TEMP, .L20
 	dsra	I, N, 2