From 4f6887c39c9d1cd4fa707860a1d3b64050dbe53a Mon Sep 17 00:00:00 2001
From: Sun Yimin <emmansun@users.noreply.github.com>
Date: Tue, 27 Aug 2024 13:24:19 +0800
Subject: [PATCH] do not use R1

---
 internal/sm2ec/p256_asm_ppc64le.s | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/sm2ec/p256_asm_ppc64le.s b/internal/sm2ec/p256_asm_ppc64le.s
index cdc76d6..896e68e 100644
--- a/internal/sm2ec/p256_asm_ppc64le.s
+++ b/internal/sm2ec/p256_asm_ppc64le.s
@@ -636,7 +636,7 @@ TEXT ·p256FromMont(SB), NOSPLIT, $0-16
 #undef PH
 
 //func p256OrdReduce(s *p256OrdElement)
-#define res_ptr R1
+#define res_ptr R3
 #define CPOOL   R4
 
 #define T0   V0