diff --git a/ld/libfiles.ntsc-beta.inc b/ld/libfiles.ntsc-beta.inc
index 41f4f2f40..44052cadb 100644
--- a/ld/libfiles.ntsc-beta.inc
+++ b/ld/libfiles.ntsc-beta.inc
@@ -48,7 +48,7 @@
 	build/ROMID/lib/pimgr.o (section); \
 	build/ROMID/lib/lib_13750.o (section); \
 	build/ROMID/lib/lib_13790.o (section); \
-	build/ROMID/lib/lib_13820.o (section); \
+	build/ROMID/lib/base.o (section); \
 	build/ROMID/lib/joy.o (section); \
 	build/ROMID/lib/lib_15850.o (section); \
 	build/ROMID/lib/gvars.o (section); \
diff --git a/ld/libfiles.ntsc-final.inc b/ld/libfiles.ntsc-final.inc
index 0ca38cd47..78a113886 100644
--- a/ld/libfiles.ntsc-final.inc
+++ b/ld/libfiles.ntsc-final.inc
@@ -46,7 +46,7 @@
 	build/ROMID/lib/pimgr.o (section); \
 	build/ROMID/lib/lib_13750.o (section); \
 	build/ROMID/lib/lib_13790.o (section); \
-	build/ROMID/lib/lib_13820.o (section); \
+	build/ROMID/lib/base.o (section); \
 	build/ROMID/lib/joy.o (section); \
 	build/ROMID/lib/lib_15850.o (section); \
 	build/ROMID/lib/gvars.o (section); \
diff --git a/ld/libfiles.pal-final.inc b/ld/libfiles.pal-final.inc
index 4eebf7394..360d7ed1c 100644
--- a/ld/libfiles.pal-final.inc
+++ b/ld/libfiles.pal-final.inc
@@ -46,7 +46,7 @@
 	build/ROMID/lib/pimgr.o (section); \
 	build/ROMID/lib/lib_13750.o (section); \
 	build/ROMID/lib/lib_13790.o (section); \
-	build/ROMID/lib/lib_13820.o (section); \
+	build/ROMID/lib/base.o (section); \
 	build/ROMID/lib/joy.o (section); \
 	build/ROMID/lib/lib_15850.o (section); \
 	build/ROMID/lib/gvars.o (section); \
diff --git a/src/include/lib/lib_13820.h b/src/include/lib/lib_13820.h
deleted file mode 100644
index 86a5f4512..000000000
--- a/src/include/lib/lib_13820.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _IN_LIB_LIB_13820_H
-#define _IN_LIB_LIB_13820_H
-#include <ultra64.h>
-#include "data.h"
-#include "types.h"
-
-#endif
diff --git a/src/lib/base.c b/src/lib/base.c
new file mode 100644
index 000000000..3d2e2b0e2
--- /dev/null
+++ b/src/lib/base.c
@@ -0,0 +1,31 @@
+#include <ultra64.h>
+#include "constants.h"
+#include "bss.h"
+#include "data.h"
+#include "types.h"
+
+const char lower[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+const char upper[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+char *baseEncode(u64 value, char *buffer, u32 base, bool uppercase)
+{
+	const char *digits = uppercase ? upper : lower;
+	char *ptr = buffer;
+
+	while (value > 0) {
+		ptr--;
+		*ptr = digits[value % base];
+		value /= base;
+	}
+
+	return ptr;
+}
+
+GLOBAL_ASM(
+glabel base000138e0
+/*    138e0:	afa40000 */ 	sw	$a0,0x0($sp)
+/*    138e4:	afa50004 */ 	sw	$a1,0x4($sp)
+/*    138e8:	afa60008 */ 	sw	$a2,0x8($sp)
+/*    138ec:	03e00008 */ 	jr	$ra
+/*    138f0:	00001025 */ 	or	$v0,$zero,$zero
+);
diff --git a/src/lib/lib_13820.c b/src/lib/lib_13820.c
deleted file mode 100644
index 7ca657564..000000000
--- a/src/lib/lib_13820.c
+++ /dev/null
@@ -1,72 +0,0 @@
-#include <ultra64.h>
-#include "constants.h"
-#include "bss.h"
-#include "lib/libc/ll.h"
-#include "data.h"
-#include "types.h"
-
-const char var70054030[] = "0123456789abcdefghijklmnopqrstuvwxyz";
-const char var70054058[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
-
-GLOBAL_ASM(
-glabel func00013820
-/*    13820:	27bdffc8 */ 	addiu	$sp,$sp,-56
-/*    13824:	8fae0048 */ 	lw	$t6,0x48($sp)
-/*    13828:	afbf001c */ 	sw	$ra,0x1c($sp)
-/*    1382c:	afb10018 */ 	sw	$s1,0x18($sp)
-/*    13830:	afb00014 */ 	sw	$s0,0x14($sp)
-/*    13834:	afa40038 */ 	sw	$a0,0x38($sp)
-/*    13838:	11c00004 */ 	beqz	$t6,.L0001384c
-/*    1383c:	afa5003c */ 	sw	$a1,0x3c($sp)
-/*    13840:	3c117005 */ 	lui	$s1,%hi(var70054058)
-/*    13844:	10000003 */ 	b	.L00013854
-/*    13848:	26314058 */ 	addiu	$s1,$s1,%lo(var70054058)
-.L0001384c:
-/*    1384c:	3c117005 */ 	lui	$s1,%hi(var70054030)
-/*    13850:	26314030 */ 	addiu	$s1,$s1,%lo(var70054030)
-.L00013854:
-/*    13854:	00c08025 */ 	or	$s0,$a2,$zero
-/*    13858:	8fb80038 */ 	lw	$t8,0x38($sp)
-/*    1385c:	8fb9003c */ 	lw	$t9,0x3c($sp)
-/*    13860:	17000003 */ 	bnez	$t8,.L00013870
-/*    13864:	24080000 */ 	addiu	$t0,$zero,0x0
-/*    13868:	53200018 */ 	beqzl	$t9,.L000138cc
-/*    1386c:	8fbf001c */ 	lw	$ra,0x1c($sp)
-.L00013870:
-/*    13870:	afa80020 */ 	sw	$t0,0x20($sp)
-/*    13874:	afa70024 */ 	sw	$a3,0x24($sp)
-.L00013878:
-/*    13878:	2610ffff */ 	addiu	$s0,$s0,-1
-.L0001387c:
-/*    1387c:	8fa40038 */ 	lw	$a0,0x38($sp)
-/*    13880:	8fa5003c */ 	lw	$a1,0x3c($sp)
-/*    13884:	8fa60020 */ 	lw	$a2,0x20($sp)
-/*    13888:	0c012b8b */ 	jal	__ull_rem
-/*    1388c:	8fa70024 */ 	lw	$a3,0x24($sp)
-/*    13890:	00715021 */ 	addu	$t2,$v1,$s1
-/*    13894:	914b0000 */ 	lbu	$t3,0x0($t2)
-/*    13898:	a20b0000 */ 	sb	$t3,0x0($s0)
-/*    1389c:	8fa70024 */ 	lw	$a3,0x24($sp)
-/*    138a0:	8fa60020 */ 	lw	$a2,0x20($sp)
-/*    138a4:	8fa5003c */ 	lw	$a1,0x3c($sp)
-/*    138a8:	0c012b9a */ 	jal	__ull_div
-/*    138ac:	8fa40038 */ 	lw	$a0,0x38($sp)
-/*    138b0:	afa20038 */ 	sw	$v0,0x38($sp)
-/*    138b4:	afa3003c */ 	sw	$v1,0x3c($sp)
-/*    138b8:	1440ffef */ 	bnez	$v0,.L00013878
-/*    138bc:	00606825 */ 	or	$t5,$v1,$zero
-/*    138c0:	55a0ffee */ 	bnezl	$t5,.L0001387c
-/*    138c4:	2610ffff */ 	addiu	$s0,$s0,-1
-/*    138c8:	8fbf001c */ 	lw	$ra,0x1c($sp)
-.L000138cc:
-/*    138cc:	02001025 */ 	or	$v0,$s0,$zero
-/*    138d0:	8fb00014 */ 	lw	$s0,0x14($sp)
-/*    138d4:	8fb10018 */ 	lw	$s1,0x18($sp)
-/*    138d8:	03e00008 */ 	jr	$ra
-/*    138dc:	27bd0038 */ 	addiu	$sp,$sp,0x38
-/*    138e0:	afa40000 */ 	sw	$a0,0x0($sp)
-/*    138e4:	afa50004 */ 	sw	$a1,0x4($sp)
-/*    138e8:	afa60008 */ 	sw	$a2,0x8($sp)
-/*    138ec:	03e00008 */ 	jr	$ra
-/*    138f0:	00001025 */ 	or	$v0,$zero,$zero
-);