diff --git a/asm/non_matching/fileScreen/sub_08051738.inc b/asm/non_matching/fileScreen/sub_08051738.inc
deleted file mode 100644
index f1e65adb..00000000
--- a/asm/non_matching/fileScreen/sub_08051738.inc
+++ /dev/null
@@ -1,65 +0,0 @@
-    .syntax unified
-	push {r4, r5, r6, r7, lr}
-	ldr r1, _08051768 @ =gMapDataBottomSpecial
-	movs r0, #4
-	strb r0, [r1, #7]
-	movs r4, #0
-	movs r3, #0
-	adds r5, r1, #0
-	adds r7, r5, #0
-	adds r7, #8
-	ldr r6, _0805176C @ =gUnk_02000090
-_0805174C:
-	adds r0, r3, r7
-	ldrb r0, [r0]
-	lsls r0, r0, #0x18
-	asrs r0, r0, #0x18
-	cmp r0, #1
-	bne _08051770
-	ldrb r1, [r5, #6]
-	movs r2, #4
-	eors r1, r3
-	rsbs r0, r1, #0
-	orrs r0, r1
-	asrs r0, r0, #0x1f
-	ands r2, r0
-	b _08051774
-	.align 2, 0
-_08051768: .4byte gMapDataBottomSpecial
-_0805176C: .4byte gUnk_02000090
-_08051770:
-	adds r4, #1
-	adds r2, r4, #0
-_08051774:
-	adds r0, r3, r6
-	strb r2, [r0]
-	adds r3, #1
-	cmp r3, #2
-	bls _0805174C
-	cmp r4, #0
-	bne _0805179C
-	ldr r1, _08051798 @ =gMenu
-	movs r0, #0x3c
-	strh r0, [r1, #8]
-	movs r0, #1
-	movs r1, #0
-	bl CreateDialogBox
-	movs r0, #3
-	bl SetMenuType
-	b _080517A2
-	.align 2, 0
-_08051798: .4byte gMenu
-_0805179C:
-	movs r0, #1
-	bl SetMenuType
-_080517A2:
-	adds r4, #1
-	ldr r0, _080517B0 @ =gMenu
-	strb r4, [r0, #0x16]
-	movs r1, #4
-	strb r1, [r0, #0x13]
-	strb r4, [r0, #0x14]
-	pop {r4, r5, r6, r7, pc}
-	.align 2, 0
-_080517B0: .4byte gMenu
-    .syntax divided
diff --git a/src/fileselect.c b/src/fileselect.c
index b7b4170c..aacb57f0 100644
--- a/src/fileselect.c
+++ b/src/fileselect.c
@@ -1098,22 +1098,27 @@ void HandleFileCopy(void) {
     sub_08050A64(gMapDataBottomSpecial.unk6);
 }
 
-// regalloc
-NONMATCH("asm/non_matching/fileScreen/sub_08051738.inc", void sub_08051738(void)) {
+void sub_08051738(void) {
     s32 temp;
     u32 i;
     s32 uVar3;
+    s32 val;
+    u32 temp2;
 
     gMapDataBottomSpecial.unk7 = 4;
     uVar3 = 0;
     for (i = 0; i < 3; i++) {
         if (gMapDataBottomSpecial.saveStatus[i] == 1) {
-            temp = gMapDataBottomSpecial.unk6 ^ i;
-            uVar3 = !!temp & 4;
+            temp = gMapDataBottomSpecial.unk6;
+            val = 4;
+            if ((temp ^ i) == 0) {
+                val = 0;
+            }
         } else {
             uVar3++;
+            val = uVar3;
         }
-        (&gGenericMenu.selectMtx)[i] = uVar3;
+        gGenericMenu.unk10.a[i] = val;
     }
     if (uVar3 == 0) {
         gMenu.transitionTimer = 0x3c;
@@ -1127,7 +1132,6 @@ NONMATCH("asm/non_matching/fileScreen/sub_08051738.inc", void sub_08051738(void)
     gGenericMenu.unk10.a[3] = 4;
     gGenericMenu.unk14 = uVar3;
 }
-END_NONMATCH
 
 s32 sub_080517B4(s32 a1) {
     u32 i = gMapDataBottomSpecial.unk7;