unk_0201B8B8.c

arm9/asm/unk_0201B8B8.s

@@ -1,83 +0,0 @@
-	.include "asm/macros.inc"
-    .include "global.inc"
-
-	.text
-
-	thumb_func_start FUN_0201B8B8
-FUN_0201B8B8: ; 0x0201B8B8
-	push {r4, lr}
-	add r4, r0, #0x0
-	ldrh r1, [r4, #0x0]
-	ldr r0, _0201B8DC ; =0x0000FFFE
-	cmp r1, r0
-	beq _0201B8C8
-	bl ErrorHandling
-_0201B8C8:
-	ldrh r1, [r4, #0x0]
-	ldr r0, _0201B8DC ; =0x0000FFFE
-	cmp r1, r0
-	bne _0201B8D8
-	ldrh r0, [r4, #0x4]
-	add r1, r4, #0x6
-	lsl r0, r0, #0x1
-	add r4, r1, r0
-_0201B8D8:
-	add r0, r4, #0x0
-	pop {r4, pc}
-	.balign 4
-_0201B8DC: .word 0x0000FFFE
-
-	thumb_func_start FUN_0201B8E0
-FUN_0201B8E0: ; 0x0201B8E0
-	push {r4, lr}
-	add r4, r0, #0x0
-	ldrh r1, [r4, #0x0]
-	ldr r0, _0201B8F4 ; =0x0000FFFE
-	cmp r1, r0
-	beq _0201B8F0
-	bl ErrorHandling
-_0201B8F0:
-	ldrh r0, [r4, #0x2]
-	pop {r4, pc}
-	.balign 4
-_0201B8F4: .word 0x0000FFFE
-
-	thumb_func_start FUN_0201B8F8
-FUN_0201B8F8: ; 0x0201B8F8
-	push {r3, lr}
-	bl FUN_0201B8E0
-	mov r1, #0xff
-	lsl r1, r1, #0x8
-	and r1, r0
-	mov r0, #0x1
-	lsl r0, r0, #0x8
-	cmp r1, r0
-	bne _0201B910
-	mov r0, #0x1
-	pop {r3, pc}
-_0201B910:
-	mov r0, #0x0
-	pop {r3, pc}
-
-	thumb_func_start FUN_0201B914
-FUN_0201B914: ; 0x0201B914
-	push {r3-r5, lr}
-	add r5, r0, #0x0
-	add r4, r1, #0x0
-	ldrh r1, [r5, #0x0]
-	ldr r0, _0201B938 ; =0x0000FFFE
-	cmp r1, r0
-	beq _0201B926
-	bl ErrorHandling
-_0201B926:
-	ldrh r0, [r5, #0x4]
-	cmp r4, r0
-	blo _0201B930
-	bl ErrorHandling
-_0201B930:
-	lsl r0, r4, #0x1
-	add r0, r5, r0
-	ldrh r0, [r0, #0x6]
-	pop {r3-r5, pc}
-	.balign 4
-_0201B938: .word 0x0000FFFE

arm9/src/unk_0201B8B8.c

@@ -0,0 +1,33 @@
+#include "global.h"
+#include "unk_0201B8B88.h"
+
+#pragma thumb on
+
+const u16 * FUN_0201B8B8(const u16 * r4)
+{
+    GF_ASSERT(*r4 == 0xFFFE);
+    if (*r4 == 0xFFFE) {
+        u16 r0 = r4[2];
+        r4 += 3;
+        r4 += r0;
+    }
+    return r4;
+}
+
+u16 FUN_0201B8E0(const u16 * r4)
+{
+    GF_ASSERT(*r4 == 0xFFFE);
+    return r4[1];
+}
+
+BOOL FUN_0201B8F8(const u16 * r4)
+{
+    return (FUN_0201B8E0(r4) & 0xFF00) == 0x100;
+}
+
+u16 FUN_0201B914(const u16 * r5, u32 r4)
+{
+    GF_ASSERT(*r5 == 0xFFFE);
+    GF_ASSERT(r4 < r5[2]);
+    return r5[3 + r4];
+}

include/unk_0201B8B88.h

@@ -0,0 +1,9 @@
+#ifndef POKEDIAMOND_UNK_0201B8B88_H
+#define POKEDIAMOND_UNK_0201B8B88_H
+
+const u16 * FUN_0201B8B8(const u16 * r4);
+u16 FUN_0201B8E0(const u16 * r4);
+BOOL FUN_0201B8F8(const u16 * r4);
+u16 FUN_0201B914(const u16 * r5, u32 r4);
+
+#endif //POKEDIAMOND_UNK_0201B8B88_H