From 971287499471650642aed5586ec69c2f8251dea7 Mon Sep 17 00:00:00 2001
From: qndel <stefan551@o2.pl>
Date: Thu, 2 May 2019 13:46:32 +0200
Subject: [PATCH] gmenu_up_down bin exact

---
 Source/gmenu.cpp | 47 ++++++++++++++++++++++-------------------------
 Source/gmenu.h   |  2 +-
 2 files changed, 23 insertions(+), 26 deletions(-)

diff --git a/Source/gmenu.cpp b/Source/gmenu.cpp
index 85f4715b5..65026a9d5 100644
--- a/Source/gmenu.cpp
+++ b/Source/gmenu.cpp
@@ -126,38 +126,35 @@ void gmenu_call_proc(TMenuItem *pItem, void(*gmFunc)(TMenuItem *))
 		}
 	}
 	sgpCurrItem = &v2[v3 - 1];
-	gmenu_up_down(1);
+	gmenu_up_down(TRUE);
 }
 // 525740: using guessed type int PauseMode;
 // 634464: using guessed type char byte_634464;
 // 63448C: using guessed type int dword_63448C;
 
-void gmenu_up_down(int a1)
+void gmenu_up_down(BOOL isDown)
 {
-	TMenuItem *v1; // eax
-	int v2;        // edi
+	int i;
 
-	v1 = sgpCurrItem;
-	if (sgpCurrItem) {
-		byte_634464 = 0;
-		v2 = dword_63448C;
-		while (v2) {
-			--v2;
-			if (a1) {
-				++v1;
-				sgpCurrItem = v1;
-				if (v1->fnMenu)
-					goto LABEL_10;
-				v1 = dword_634480;
+	if (!sgpCurrItem) {
+		return;
+	}
+	byte_634464 = FALSE;
+	i = dword_63448C;
+	if (dword_63448C) {
+		while (i) {
+			i--;
+			if (isDown) {
+				sgpCurrItem++;
+				if (!sgpCurrItem->fnMenu)
+					sgpCurrItem = dword_634480;
 			} else {
-				if (v1 == dword_634480)
-					v1 = &dword_634480[dword_63448C];
-				--v1;
+				if (sgpCurrItem == dword_634480)
+					sgpCurrItem = &dword_634480[dword_63448C];
+				sgpCurrItem--;
 			}
-			sgpCurrItem = v1;
-		LABEL_10:
-			if ((v1->dwFlags & 0x80000000) != 0) {
-				if (v2)
+			if ((sgpCurrItem->dwFlags & 0x80000000) != 0) {
+				if (i)
 					PlaySFX(IS_TITLEMOV);
 				return;
 			}
@@ -295,10 +292,10 @@ BOOL gmenu_presskeys(int a1)
 		gmenu_left_right(TRUE);
 		break;
 	case VK_UP:
-		gmenu_up_down(0);
+		gmenu_up_down(FALSE);
 		break;
 	case VK_DOWN:
-		gmenu_up_down(1);
+		gmenu_up_down(TRUE);
 		break;
 	}
 	return TRUE;
diff --git a/Source/gmenu.h b/Source/gmenu.h
index 2888b01f1..fb0550c57 100644
--- a/Source/gmenu.h
+++ b/Source/gmenu.h
@@ -19,7 +19,7 @@ void FreeGMenu();
 void gmenu_init_menu();
 BOOL gmenu_exception();
 void gmenu_call_proc(TMenuItem *pItem, void(*gmFunc)(TMenuItem *));
-void gmenu_up_down(int a1);
+void gmenu_up_down(BOOL isDown);
 void gmenu_draw();
 void gmenu_draw_menu_item(TMenuItem *pItem, int a2);
 void gmenu_clear_buffer(int x, int y, int width, int height);