some work on fatal system decomping

asm/fatal_system.s

@@ -57,101 +57,4 @@ sub_8011B88:
 	bx r3
 	thumb_func_end sub_8011B88
 
-	thumb_func_start nullsub_28
-nullsub_28:
-	bx lr
-	thumb_func_end nullsub_28
-
-	thumb_func_start sub_8011BA4
-sub_8011BA4:
-	movs r0, 0
-	bx lr
-	thumb_func_end sub_8011BA4
-
-	thumb_func_start sub_8011BA8
-sub_8011BA8:
-	movs r0, 0
-	bx lr
-	thumb_func_end sub_8011BA8
-
-	thumb_func_start sub_8011BAC
-sub_8011BAC:
-	ldr r0, _08011BB0
-	bx lr
-	.align 2, 0
-_08011BB0: .4byte gNotMountText
-	thumb_func_end sub_8011BAC
-
-	thumb_func_start sub_8011BB4
-sub_8011BB4:
-	push {lr}
-	bl Hang
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8011BB4
-
-	thumb_func_start Log
-Log:
-	push {r1-r3}
-	add sp, 0xC
-	bx lr
-	thumb_func_end Log
-
-	thumb_func_start sub_8011BC8
-sub_8011BC8:
-	push {r2,r3}
-	add sp, 0x8
-	bx lr
-	thumb_func_end sub_8011BC8
-
-	thumb_func_start nullsub_29
-nullsub_29:
-	bx lr
-	thumb_func_end nullsub_29
-
-	thumb_func_start nullsub_30
-nullsub_30:
-	bx lr
-	thumb_func_end nullsub_30
-
-	thumb_func_start nullsub_31
-nullsub_31:
-	bx lr
-	thumb_func_end nullsub_31
-
-	thumb_func_start nullsub_32
-nullsub_32:
-	bx lr
-	thumb_func_end nullsub_32
-
-	thumb_func_start FatalErrorHang
-FatalErrorHang:
-	push {lr}
-	bl Hang
-	pop {r0}
-	bx r0
-	thumb_func_end FatalErrorHang
-
-	thumb_func_start FatalError
-FatalError:
-	push {r1-r3}
-	push {r4,lr}
-	sub sp, 0x100
-	adds r1, r0, 0
-	ldr r4, [sp, 0x108]
-	ldr r0, _08011C14
-	bl FatalErrorPrintFuncFileLine
-	add r2, sp, 0x10C
-	mov r0, sp
-	adds r1, r4, 0
-	bl vsprintf
-	ldr r0, _08011C18
-	mov r1, sp
-	bl FatalErrorFormatMessage
-	bl FatalErrorHang
-	.align 2, 0
-_08011C14: .4byte gFatalText
-_08011C18: .4byte gUnknown_80D42D4
-	thumb_func_end FatalError
-
         .align 2,0

asm/fatal_system_1.s

@@ -0,0 +1,72 @@
+	.include "constants/gba_constants.inc"
+	.include "asm/macros.inc"
+
+	.syntax unified
+
+	.text	
+
+	thumb_func_start Log
+Log:
+	push {r1-r3}
+	add sp, 0xC
+	bx lr
+	thumb_func_end Log
+
+	thumb_func_start sub_8011BC8
+sub_8011BC8:
+	push {r2,r3}
+	add sp, 0x8
+	bx lr
+	thumb_func_end sub_8011BC8
+
+	thumb_func_start nullsub_29
+nullsub_29:
+	bx lr
+	thumb_func_end nullsub_29
+
+	thumb_func_start nullsub_30
+nullsub_30:
+	bx lr
+	thumb_func_end nullsub_30
+
+	thumb_func_start nullsub_31
+nullsub_31:
+	bx lr
+	thumb_func_end nullsub_31
+
+	thumb_func_start nullsub_32
+nullsub_32:
+	bx lr
+	thumb_func_end nullsub_32
+
+	thumb_func_start FatalErrorHang
+FatalErrorHang:
+	push {lr}
+	bl Hang
+	pop {r0}
+	bx r0
+	thumb_func_end FatalErrorHang
+
+	thumb_func_start FatalError
+FatalError:
+	push {r1-r3}
+	push {r4,lr}
+	sub sp, 0x100
+	adds r1, r0, 0
+	ldr r4, [sp, 0x108]
+	ldr r0, _08011C14
+	bl FatalErrorPrintFuncFileLine
+	add r2, sp, 0x10C
+	mov r0, sp
+	adds r1, r4, 0
+	bl vsprintf
+	ldr r0, _08011C18
+	mov r1, sp
+	bl FatalErrorFormatMessage
+	bl FatalErrorHang
+	.align 2, 0
+_08011C14: .4byte gFatalText
+_08011C18: .4byte gUnknown_80D42D4
+	thumb_func_end FatalError
+
+        .align 2,0

ld_script.txt

@@ -79,6 +79,8 @@ SECTIONS {
         asm/code_80118A4.o(.text);
         src/code_80118A4_1.o(.text);
         asm/fatal_system.o(.text);
+        src/fatal_system.o(.text);
+        asm/fatal_system_1.o(.text);
         src/save.o(.text);
         asm/save.o(.text);
         src/save_mid.o(.text);

src/fatal_system.c

@@ -0,0 +1,28 @@
+#include "global.h"
+
+extern const char gNotMountText;
+extern void Hang();
+
+void nullsub_28(void)
+{
+}
+
+u32 sub_8011BA4(void)
+{
+    return 0;
+}
+
+u32 sub_8011BA8(void)
+{
+    return 0;
+}
+
+const char *sub_8011BAC(void)
+{
+    return &gNotMountText;
+}
+
+void sub_8011BB4(void)
+{
+    Hang();
+}