From a9c021d1c9a7ce185b2171dbc54d5834c725a05b Mon Sep 17 00:00:00 2001
From: TuxSH <1922548+TuxSH@users.noreply.github.com>
Date: Mon, 11 Jan 2021 01:02:12 +0000
Subject: [PATCH] rosalina: use mcu optimization trick

---
 sysmodules/rosalina/source/menu.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/sysmodules/rosalina/source/menu.c b/sysmodules/rosalina/source/menu.c
index 9b15e712..dec425b1 100644
--- a/sysmodules/rosalina/source/menu.c
+++ b/sysmodules/rosalina/source/menu.c
@@ -161,13 +161,8 @@ static Result menuUpdateMcuInfo(void)
     if (R_FAILED(res))
         return res;
 
-    // Read mcu regs directly
-    for (u32 i = 0; i < 4; i++)
-    {
-        res = MCUHWC_ReadRegister(0xA + i, &data[i], 1);
-        if (R_FAILED(res))
-            break;
-    }
+    // Read single-byte mcu regs 0x0A to 0x0D directly
+    res = MCUHWC_ReadRegister(0xA, data, 4);
 
     if (R_SUCCEEDED(res))
     {