Finish translating code_800AAA0 to C!

asm/code_800AAA0.s

@@ -1,101 +0,0 @@
-	.include "constants/gba_constants.inc"
-	.include "asm/macros.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start sub_800B294
-sub_800B294:
-	push {lr}
-	adds r1, r0, 0
-	ldrb r0, [r1]
-	cmp r0, 0x41
-	bne _0800B2CC
-	ldrb r0, [r1, 0x1]
-	adds r2, r0, 0
-	cmp r2, 0x54
-	bne _0800B2B2
-	ldrb r0, [r1, 0x2]
-	cmp r0, 0x34
-	bne _0800B2B2
-	ldrb r0, [r1, 0x3]
-	cmp r0, 0x50
-	beq _0800B2C8
-_0800B2B2:
-	ldrb r0, [r1]
-	cmp r0, 0x41
-	bne _0800B2CC
-	cmp r2, 0x54
-	bne _0800B2CC
-	ldrb r0, [r1, 0x2]
-	cmp r0, 0x33
-	bne _0800B2CC
-	ldrb r0, [r1, 0x3]
-	cmp r0, 0x50
-	bne _0800B2CC
-_0800B2C8:
-	movs r0, 0x1
-	b _0800B2CE
-_0800B2CC:
-	movs r0, 0
-_0800B2CE:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_800B294
-
-	thumb_func_start sub_800B2D4
-sub_800B2D4:
-	push {r4-r6,lr}
-	adds r6, r0, 0
-	adds r5, r1, 0
-	adds r4, r2, 0
-	movs r2, 0
-	cmp r2, r4
-	bge _0800B324
-_0800B2E2:
-	adds r0, r6, r2
-	ldrb r1, [r0]
-	adds r0, r5, r2
-	ldrb r3, [r0]
-	adds r0, r1, 0
-	subs r0, 0x41
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x19
-	bhi _0800B2FE
-	adds r0, r1, 0
-	adds r0, 0x20
-	lsls r0, 24
-	lsrs r1, r0, 24
-_0800B2FE:
-	adds r0, r3, 0
-	subs r0, 0x41
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x19
-	bhi _0800B312
-	adds r0, r3, 0
-	adds r0, 0x20
-	lsls r0, 24
-	lsrs r3, r0, 24
-_0800B312:
-	cmp r1, r3
-	beq _0800B31A
-	movs r0, 0x1
-	b _0800B326
-_0800B31A:
-	cmp r1, 0
-	beq _0800B324
-	adds r2, 0x1
-	cmp r2, r4
-	blt _0800B2E2
-_0800B324:
-	movs r0, 0
-_0800B326:
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_800B2D4
-
-	.align 2, 0 @ Don't pad with nop.

ld_script.txt

@@ -68,7 +68,6 @@ SECTIONS {
         asm/text.o(.text);
         asm/code_8009804.o(.text);
         src/file_system.o(.text);
-        asm/code_800AAA0.o(.text);
         src/main.o(.text);
         asm/code_800B540.o(.text);
         src/code_800B5F0.o(.text);

src/file_system.c

@@ -1632,3 +1632,28 @@ void DecompressAT_Finish(void) {
     if (gDecompressBufferByteInInt)
         *gDecompressBufferPtr = gDecompressBufferCurrent;
 }
+
+// 800B294
+bool32 IsATxPCompressed_unused(char *data) {
+    if ((data[0] == 'A' && data[1] == 'T' && data[2] == '4' && data[3] == 'P')) return TRUE;
+    if ((data[0] == 'A' && data[1] == 'T' && data[2] == '3' && data[3] == 'P')) return TRUE;
+    return FALSE;
+}
+
+// 800B2D4
+bool32 sub_800B2D4(char *arg0, char *arg1, int length) {
+    int i;
+    char a, b;
+    for (i = 0; i < length; i++) {
+        a = arg0[i];
+        b = arg1[i];
+        // convert to lowercase
+        if ('A' <= a && a <= 'Z') a += 0x20;
+        if ('A' <= b && b <= 'Z') b += 0x20;
+        if (a != b)
+            return TRUE;
+        if (a == '\0')
+            break;
+    }
+    return FALSE;
+}