Merge pull request #278 from lhearachel/charcode-util

Document charcode_util.c

include/charcode_util.h

@@ -0,0 +1,16 @@
+#ifndef POKEPLATINUM_CHARCODE_UTIL_H
+#define POKEPLATINUM_CHARCODE_UTIL_H
+
+#include "charcode.h"
+#include "strbuf.h"
+
+charcode_t *CharCode_Copy(charcode_t *dst, const charcode_t *src);
+charcode_t *CharCode_CopyNumChars(charcode_t *dst, const charcode_t *src, u32 num);
+u32 CharCode_Length(const charcode_t *str);
+BOOL CharCode_Compare(const charcode_t *str1, const charcode_t *str2);
+BOOL CharCode_CompareNumChars(const charcode_t *str1, const charcode_t *str2, u32 num);
+charcode_t *CharCode_FillWith(charcode_t *str, charcode_t fill, u32 num);
+charcode_t *CharCode_FillWithEOS(charcode_t *str, u32 num);
+charcode_t *CharCode_FromInt(charcode_t *str, s32 i, enum PaddingMode paddingMode, u32 digits);
+
+#endif // POKEPLATINUM_CHARCODE_UTIL_H

include/constants/charcode.h

@@ -15,6 +15,12 @@ enum {
     CHAR_JP_7,
     CHAR_JP_8,
     CHAR_JP_9,
+    CHAR_JP_A,
+    CHAR_JP_B,
+    CHAR_JP_C,
+    CHAR_JP_D,
+    CHAR_JP_E,
+    CHAR_JP_F,
 
     CHAR_JP_QUESTION = 0x00E2,
 

include/constdata/const_020E4C40.h

@@ -1,6 +0,0 @@
-#ifndef POKEPLATINUM_CONST_020E4C40_H
-#define POKEPLATINUM_CONST_020E4C40_H
-
-extern const u8 Unk_020E4C40;
-
-#endif // POKEPLATINUM_CONST_020E4C40_H

include/constdata/const_020E4C44.h

@@ -1,6 +0,0 @@
-#ifndef POKEPLATINUM_CONST_020E4C44_H
-#define POKEPLATINUM_CONST_020E4C44_H
-
-extern const u8 Unk_020E4C44;
-
-#endif // POKEPLATINUM_CONST_020E4C44_H

include/global/pm_version.h

@@ -21,7 +21,7 @@
 #define SPANISH  7
 #define KOREAN   8
 
-extern const u8 Unk_020E4C40;
-extern const u8 Unk_020E4C44;
+extern const u8 gGameVersion;
+extern const u8 gGameLanguage;
 
 #endif // POKEPLATINUM_PM_VERSION_H

include/unk_020021B0.h

@@ -1,13 +0,0 @@
-#ifndef POKEPLATINUM_UNK_020021B0_H
-#define POKEPLATINUM_UNK_020021B0_H
-
-u16 *GF_strcpy(u16 *param0, const u16 *param1);
-u16 *sub_020021D0(u16 *param0, const u16 *param1, u32 param2);
-u32 GF_strlen(const u16 *param0);
-BOOL GF_strcmp(const u16 *param0, const u16 *param1);
-BOOL GF_strncmp(const u16 *param0, const u16 *param1, u32 param2);
-u16 *sub_02002278(u16 *param0, u16 param1, u32 param2);
-u16 *sub_02002294(u16 *param0, u32 param1);
-u16 *sub_020022A4(u16 *param0, s32 param1, u32 param2, u32 param3);
-
-#endif // POKEPLATINUM_UNK_020021B0_H

platinum.us/main.lsf

@@ -19,7 +19,7 @@ Static main
 	Object main.nef.p/src_unk_0200112C.c.o
 	Object main.nef.p/src_game_version.c.o
 	Object main.nef.p/src_unk_02001AF4.c.o
-	Object main.nef.p/src_unk_020021B0.c.o
+	Object main.nef.p/src_charcode_util.c.o
 	Object main.nef.p/src_render_text.c.o
 	Object main.nef.p/src_font.c.o
 	Object main.nef.p/src_palette.c.o

src/battle/battle_lib.c

@@ -31,6 +31,7 @@
 #include "battle/scripts/sub_seq.naix"
 #include "battle/struct_ov16_0225BFFC_decl.h"
 
+#include "charcode_util.h"
 #include "flags.h"
 #include "heap.h"
 #include "item.h"
@@ -43,7 +44,6 @@
 #include "strbuf.h"
 #include "trainer_data.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_020366A0.h"
 #include "unk_0208C098.h"
 
@@ -6275,7 +6275,7 @@ BOOL BattleSystem_TrainerIsOT(BattleSystem *battleSys, BattleContext *battleCtx)
 
     if (trID == ATTACKING_MON.OTId
         && trGender == ATTACKING_MON.OTGender
-        && GF_strncmp(trName, ATTACKING_MON.OTName, TRAINER_NAME_LEN) == 0) {
+        && CharCode_CompareNumChars(trName, ATTACKING_MON.OTName, TRAINER_NAME_LEN) == 0) {
         return TRUE;
     }
 
@@ -6294,7 +6294,7 @@ BOOL BattleSystem_PokemonIsOT(BattleSystem *battleSys, Pokemon *mon)
 
     if (trID == Pokemon_GetValue(mon, MON_DATA_OT_ID, NULL)
         && trGender == Pokemon_GetValue(mon, MON_DATA_OT_GENDER, NULL)
-        && GF_strncmp(trName, monOTName, TRAINER_NAME_LEN) == 0) {
+        && CharCode_CompareNumChars(trName, monOTName, TRAINER_NAME_LEN) == 0) {
         return TRUE;
     }
 

src/battle/battle_script.c

@@ -9989,7 +9989,7 @@ static void BattleScript_GetExpTask(SysTask *task, void *inData)
             }
 
             if (BattleSystem_PokemonIsOT(data->battleSys, mon) == FALSE) {
-                if (Pokemon_GetValue(mon, MON_DATA_LANGUAGE, NULL) != Unk_020E4C44) {
+                if (Pokemon_GetValue(mon, MON_DATA_LANGUAGE, NULL) != gGameLanguage) {
                     totalExp = totalExp * 170 / 100;
                 } else {
                     totalExp = totalExp * 150 / 100;

src/charcode_util.c

@@ -0,0 +1,148 @@
+#include "charcode_util.h"
+
+#include <nitro.h>
+#include <string.h>
+
+#include "constants/charcode.h"
+
+#include "charcode.h"
+
+static const charcode_t sHexadecimalDigits[] = {
+    CHAR_JP_0,
+    CHAR_JP_1,
+    CHAR_JP_2,
+    CHAR_JP_3,
+    CHAR_JP_4,
+    CHAR_JP_5,
+    CHAR_JP_6,
+    CHAR_JP_7,
+    CHAR_JP_8,
+    CHAR_JP_9,
+    CHAR_JP_A,
+    CHAR_JP_B,
+    CHAR_JP_C,
+    CHAR_JP_D,
+    CHAR_JP_E,
+    CHAR_JP_F,
+};
+
+static const int sPowersOfTen[] = {
+    1,
+    10,
+    100,
+    1000,
+    10000,
+    100000,
+    1000000,
+    10000000,
+    100000000,
+    1000000000,
+};
+
+charcode_t *CharCode_Copy(charcode_t *dst, const charcode_t *src)
+{
+    while (*src != CHAR_EOS) {
+        *dst = *src;
+        dst++;
+        src++;
+    }
+
+    *dst = 0xffff;
+    return dst;
+}
+
+charcode_t *CharCode_CopyNumChars(charcode_t *dst, const charcode_t *src, u32 num)
+{
+    for (int i = 0; i < num; i++) {
+        dst[i] = src[i];
+    }
+
+    return &dst[num];
+}
+
+u32 CharCode_Length(const charcode_t *str)
+{
+    u32 i = 0;
+    while (str[i] != CHAR_EOS) {
+        i++;
+    }
+
+    return i;
+}
+
+int CharCode_Compare(const charcode_t *str1, const charcode_t *str2)
+{
+    while (*str1 == *str2) {
+        if (*str1 == CHAR_EOS) {
+            return 0;
+        }
+
+        str1++;
+        str2++;
+    }
+
+    return 1;
+}
+
+int CharCode_CompareNumChars(const charcode_t *str1, const charcode_t *str2, u32 num)
+{
+    while (*str1 == *str2) {
+        if (num == 0) {
+            return 0;
+        }
+
+        if (*str1 == CHAR_EOS && *str2 == CHAR_EOS) {
+            return 0;
+        }
+
+        num--;
+        str1++;
+        str2++;
+    }
+
+    return 1;
+}
+
+charcode_t *CharCode_FillWith(charcode_t *str, charcode_t fill, u32 num)
+{
+    int i;
+    for (i = 0; i < num; i++) {
+        str[i] = fill;
+    }
+
+    return &str[i];
+}
+
+charcode_t *CharCode_FillWithEOS(charcode_t *str, u32 num)
+{
+    return CharCode_FillWith(str, CHAR_EOS, num);
+}
+
+charcode_t *CharCode_FromInt(charcode_t *str, s32 i, enum PaddingMode paddingMode, u32 digits)
+{
+    u32 j;
+    u32 diff;
+    u16 digit;
+
+    for (j = sPowersOfTen[digits - 1]; j > 0; j /= 10) {
+        digit = i / j;
+        diff = i - (j * digit);
+
+        if (paddingMode == PADDING_MODE_ZEROES) {
+            *str = digit >= 10 ? CHAR_JP_QUESTION : sHexadecimalDigits[digit];
+            str++;
+        } else if (digit != 0 || j == 1) {
+            paddingMode = PADDING_MODE_ZEROES;
+            *str = digit >= 10 ? CHAR_JP_QUESTION : sHexadecimalDigits[digit];
+            str++;
+        } else if (paddingMode == PADDING_MODE_SPACES) {
+            *str = CHAR_JP_SPACE;
+            str++;
+        }
+
+        i = diff;
+    }
+
+    *str = CHAR_EOS;
+    return str;
+}

src/game_version.c

@@ -1,2 +1,2 @@
-const u8 Unk_020E4C40 = GAME_VERSION;
-const u8 Unk_020E4C44 = GAME_LANGUAGE;
+const u8 gGameVersion = GAME_VERSION;
+const u8 gGameLanguage = GAME_LANGUAGE;

src/map_header.c

@@ -35,7 +35,7 @@ const u16 MapHeader_GetMapMatrixID(u32 headerID)
     mapMatrixID = sMapHeaders[headerID].mapMatrixID;
 
     if (mapMatrixID == 22) {
-        if (Unk_020E4C40 == 11) {
+        if (gGameVersion == 11) {
             mapMatrixID = 23;
         }
     }

src/meson.build

@@ -17,7 +17,7 @@ pokeplatinum_c = files(
     'strbuf.c',
     'unk_0200112C.c',
     'unk_02001AF4.c',
-    'unk_020021B0.c',
+    'charcode_util.c',
     'render_text.c',
     'font.c',
     'palette.c',

src/overlay006/ov6_02246444.c

@@ -12,10 +12,10 @@
 #include "overlay006/struct_ov6_022465F4_decl.h"
 #include "savedata/save_table.h"
 
+#include "charcode_util.h"
 #include "heap.h"
 #include "save_player.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_0202E2CC.h"
 
 struct UnkStruct_ov6_022465F4_t {
@@ -49,7 +49,7 @@ static void ov6_02246458(UnkStruct_ov6_022465F4 *param0, int param1)
 
 static void ov6_0224645C(UnkStruct_ov6_022465F4 *param0, const u16 *param1)
 {
-    sub_020021D0(param0->unk_04, param1, 7 + 1);
+    CharCode_CopyNumChars(param0->unk_04, param1, 7 + 1);
 }
 
 static void ov6_02246468(UnkStruct_ov6_022465F4 *param0, UnkStruct_0202E4D4 *param1)

src/overlay059/ov59_021D2B44.c

@@ -9,12 +9,12 @@
 
 #include "savedata/save_table.h"
 
+#include "charcode_util.h"
 #include "communication_information.h"
 #include "heap.h"
 #include "save_player.h"
 #include "savedata.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 
 __attribute__((aligned(4))) static const u8 Unk_ov59_021D33B0[] = {
     0x2,
@@ -160,7 +160,7 @@ static void ov59_021D2B90(SaveData *param0, UnkStruct_0202E794 *param1, UnkStruc
         param1->unk_05 = GAME_VERSION;
         param1->unk_06 = GAME_LANGUAGE;
 
-        sub_020021D0(param1->unk_08, TrainerInfo_Name(v1), 7 + 1);
+        CharCode_CopyNumChars(param1->unk_08, TrainerInfo_Name(v1), 7 + 1);
 
         param1->unk_18 = param2[v0].unk_00;
         param1->unk_18.unk_01 = 0;

src/overlay066/ov66_0223177C.c

@@ -736,8 +736,8 @@ static BOOL ov66_02232068(UnkStruct_ov66_02231FB0 *param0, const UnkStruct_ov66_
 {
     Strbuf *v0;
 
-    StringTemplate_SetStrbuf(param2, 0, param0->unk_10[0], 0, 1, Unk_020E4C44);
-    StringTemplate_SetStrbuf(param2, 1, param0->unk_10[1], 0, 1, Unk_020E4C44);
+    StringTemplate_SetStrbuf(param2, 0, param0->unk_10[0], 0, 1, gGameLanguage);
+    StringTemplate_SetStrbuf(param2, 1, param0->unk_10[1], 0, 1, gGameLanguage);
 
     v0 = MessageLoader_GetNewStrbuf(param3, 7);
 
@@ -751,8 +751,8 @@ static BOOL ov66_022320BC(UnkStruct_ov66_02231FB0 *param0, const UnkStruct_ov66_
 {
     Strbuf *v0;
 
-    StringTemplate_SetStrbuf(param2, 0, param0->unk_10[0], 0, 1, Unk_020E4C44);
-    StringTemplate_SetStrbuf(param2, 1, param0->unk_10[1], 0, 1, Unk_020E4C44);
+    StringTemplate_SetStrbuf(param2, 0, param0->unk_10[0], 0, 1, gGameLanguage);
+    StringTemplate_SetStrbuf(param2, 1, param0->unk_10[1], 0, 1, gGameLanguage);
     StringTemplate_SetPlazaItemName(param2, 2, param0->unk_04[0]);
 
     v0 = MessageLoader_GetNewStrbuf(param3, 8);
@@ -774,21 +774,21 @@ static BOOL ov66_0223211C(UnkStruct_ov66_02231FB0 *param0, const UnkStruct_ov66_
 
         switch (param0->unk_04[1]) {
         case 3:
-            StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, Unk_020E4C44);
-            StringTemplate_SetStrbuf(param2, 2, param0->unk_10[1], 0, 1, Unk_020E4C44);
-            StringTemplate_SetStrbuf(param2, 3, param0->unk_10[2], 0, 1, Unk_020E4C44);
+            StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, gGameLanguage);
+            StringTemplate_SetStrbuf(param2, 2, param0->unk_10[1], 0, 1, gGameLanguage);
+            StringTemplate_SetStrbuf(param2, 3, param0->unk_10[2], 0, 1, gGameLanguage);
             v1 = 18;
             break;
         case 2:
-            StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, Unk_020E4C44);
-            StringTemplate_SetStrbuf(param2, 2, param0->unk_10[1], 0, 1, Unk_020E4C44);
+            StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, gGameLanguage);
+            StringTemplate_SetStrbuf(param2, 2, param0->unk_10[1], 0, 1, gGameLanguage);
             v1 = 19;
             break;
         case 4:
-            StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, Unk_020E4C44);
-            StringTemplate_SetStrbuf(param2, 2, param0->unk_10[1], 0, 1, Unk_020E4C44);
-            StringTemplate_SetStrbuf(param2, 3, param0->unk_10[2], 0, 1, Unk_020E4C44);
-            StringTemplate_SetStrbuf(param2, 4, param0->unk_10[3], 0, 1, Unk_020E4C44);
+            StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, gGameLanguage);
+            StringTemplate_SetStrbuf(param2, 2, param0->unk_10[1], 0, 1, gGameLanguage);
+            StringTemplate_SetStrbuf(param2, 3, param0->unk_10[2], 0, 1, gGameLanguage);
+            StringTemplate_SetStrbuf(param2, 4, param0->unk_10[3], 0, 1, gGameLanguage);
             v1 = 6;
             break;
         default:
@@ -797,7 +797,7 @@ static BOOL ov66_0223211C(UnkStruct_ov66_02231FB0 *param0, const UnkStruct_ov66_
 
         v0 = MessageLoader_GetNewStrbuf(param3, v1);
     } else {
-        StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, Unk_020E4C44);
+        StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, gGameLanguage);
         StringTemplate_SetNumber(param2, 2, 4 - param0->unk_04[1], 1, 1, 1);
 
         v0 = MessageLoader_GetNewStrbuf(param3, 5);
@@ -814,7 +814,7 @@ static BOOL ov66_02232258(UnkStruct_ov66_02231FB0 *param0, const UnkStruct_ov66_
     Strbuf *v0;
 
     StringTemplate_SetPlazaMinigameName(param2, 0, param0->unk_04[0]);
-    StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, Unk_020E4C44);
+    StringTemplate_SetStrbuf(param2, 1, param0->unk_10[0], 0, 1, gGameLanguage);
     StringTemplate_SetNumber(param2, 2, 8 - param0->unk_04[1], 1, 1, 1);
 
     v0 = MessageLoader_GetNewStrbuf(param3, 9);
@@ -832,7 +832,7 @@ static BOOL ov66_022322B8(UnkStruct_ov66_02231FB0 *param0, const UnkStruct_ov66_
     u32 v2;
 
     for (v1 = 0; v1 < param0->unk_04[0]; v1++) {
-        StringTemplate_SetStrbuf(param2, v1, param0->unk_10[v1], 0, 1, Unk_020E4C44);
+        StringTemplate_SetStrbuf(param2, v1, param0->unk_10[v1], 0, 1, gGameLanguage);
     }
 
     if (param0->unk_00 == 4) {
@@ -924,7 +924,7 @@ static BOOL ov66_022323C4(UnkStruct_ov66_02231FB0 *param0, const UnkStruct_ov66_
     StringTemplate_SetPlazaMinigameName(param2, 0, param0->unk_04[0]);
 
     for (v2 = 0; v2 < param0->unk_04[1]; v2++) {
-        StringTemplate_SetStrbuf(param2, v2 + 1, param0->unk_10[v2], 0, 1, Unk_020E4C44);
+        StringTemplate_SetStrbuf(param2, v2 + 1, param0->unk_10[v2], 0, 1, gGameLanguage);
     }
 
     if ((param0->unk_04[0] == UnkEnum_ov66_022324D0_00) || (param0->unk_04[0] == UnkEnum_ov66_022324D0_01)) {

src/overlay069/ov69_0225C700.c

@@ -1351,7 +1351,7 @@ static void ov69_0225D2A8(UnkStruct_ov69_0225CE64 *param0, const UnkStruct_ov66_
     param0->unk_04.unk_00_1 = 0;
     param0->unk_04.unk_00_0 = 0;
 
-    if (Unk_020E4C44 == 1) {
+    if (gGameLanguage == 1) {
         param0->unk_04.unk_00_1 = 1;
     } else {
         param0->unk_04.unk_00_1 = 0;

src/overlay073/ov73_021D0D80.c

@@ -770,7 +770,7 @@ static BOOL ov73_021D1648(UnkStruct_ov73_021D1058 *param0, int param1, int param
         case 2:
             v2 = &Unk_ov72_021D37CC;
 
-            if ((Unk_020E4C40 == 10) || (GAME_VERSION == 12)) {
+            if ((gGameVersion == 10) || (GAME_VERSION == 12)) {
                 v3 = Unk_ov72_021D3954;
                 v5 = NELEMS(Unk_ov72_021D3954);
             } else {
@@ -912,10 +912,10 @@ static void ov73_021D1930(UnkStruct_ov73_021D1058 *param0)
     {
         int v0, v1;
 
-        if (Unk_020E4C40 == 12) {
+        if (gGameVersion == 12) {
             v0 = 3;
             v1 = 27;
-        } else if (Unk_020E4C40 == 10) {
+        } else if (gGameVersion == 10) {
             v0 = 1;
             v1 = 25;
         } else {
@@ -2107,7 +2107,7 @@ static BOOL ov73_021D2318(UnkStruct_ov73_021D1058 *param0)
             case 5: {
                 u32 v9;
 
-                if ((Unk_020E4C40 == 10) || (GAME_VERSION == 12)) {
+                if ((gGameVersion == 10) || (GAME_VERSION == 12)) {
                     v9 = Unk_ov72_021D3954[param0->unk_48 - 1].unk_00;
                 } else {
                     v9 = Unk_ov73_021D1648[param0->unk_48 - 1].unk_00;

src/overlay088/ov88_0223B140.c

@@ -25,6 +25,7 @@
 #include "bag.h"
 #include "bg_window.h"
 #include "cell_actor.h"
+#include "charcode_util.h"
 #include "communication_information.h"
 #include "communication_system.h"
 #include "core_sys.h"
@@ -55,7 +56,6 @@
 #include "trainer_info.h"
 #include "unk_0200112C.h"
 #include "unk_02001AF4.h"
-#include "unk_020021B0.h"
 #include "unk_020041CC.h"
 #include "unk_02005474.h"
 #include "unk_02006224.h"
@@ -1667,7 +1667,7 @@ static void ov88_0223D0D4(TrainerInfo *param0, UnkStruct_02027F8C *param1, UnkSt
 {
     int v0;
 
-    GF_strcpy(param2->unk_00, TrainerInfo_Name(param0));
+    CharCode_Copy(param2->unk_00, TrainerInfo_Name(param0));
 
     param2->unk_10 = TrainerInfo_ID(param0);
     param2->unk_14 = TrainerInfo_RegionCode(param0);

src/overlay092/ov92_021D0D80.c

@@ -322,7 +322,7 @@ int ov92_021D0D80(OverlayManager *param0, int *param1)
     memset(v0, 0, sizeof(UnkStruct_ov92_021D1B24));
     v0->unk_00 = v1;
 
-    if (Unk_020E4C44 == 1) {
+    if (gGameLanguage == 1) {
         v0->unk_BAF0 = 1;
     } else {
         v0->unk_BAF0 = 0;

src/overlay094/ov94_022414B8.c

@@ -25,6 +25,7 @@
 #include "overlay094/struct_ov94_02242AAC.h"
 
 #include "bg_window.h"
+#include "charcode_util.h"
 #include "core_sys.h"
 #include "font.h"
 #include "game_options.h"
@@ -40,7 +41,6 @@
 #include "trainer_info.h"
 #include "unk_0200112C.h"
 #include "unk_02001AF4.h"
-#include "unk_020021B0.h"
 #include "unk_02005474.h"
 #include "unk_0200DA60.h"
 #include "unk_0200F174.h"
@@ -1054,7 +1054,7 @@ void ov94_022425A8(UnkStruct_ov94_0223BA88 *param0, UnkStruct_ov94_0223FD4C *par
         Pokemon_FromBoxPokemon(param1->unk_114, (Pokemon *)param0->unk_00.unk_00);
     }
 
-    sub_020021D0(param0->unk_10C, TrainerInfo_Name(param1->unk_00->unk_1C), 8);
+    CharCode_CopyNumChars(param0->unk_10C, TrainerInfo_Name(param1->unk_00->unk_1C), 8);
 
     param0->unk_11C = TrainerInfo_ID_LowHalf(param1->unk_00->unk_1C);
     param0->unk_11E = sub_0202C8C0(param1->unk_00->unk_18);

src/overlay097/ov97_0222AE60.c

@@ -48,8 +48,6 @@
 #include "unk_020366A0.h"
 #include "unk_0209A74C.h"
 
-#include "constdata/const_020E4C44.h"
-
 FS_EXTERN_OVERLAY(overlay57);
 FS_EXTERN_OVERLAY(overlay77);
 FS_EXTERN_OVERLAY(overlay97);
@@ -245,7 +243,7 @@ static void ov97_0222AF1C(UnkStruct_0222AE60 *param0)
         return;
     }
 
-    if (ov97_02235DBC() != Unk_020E4C44) {
+    if (ov97_02235DBC() != gGameLanguage) {
         return;
     }
 

src/overlay097/ov97_0222D30C.c

@@ -1098,7 +1098,7 @@ static int ov97_0222E2DC(OverlayManager *param0, int *param1)
 
     if (ov97_02237624()) {
         v0->unk_1638 = 2;
-        sub_02017B70(Unk_020E4C40);
+        sub_02017B70(gGameVersion);
         ov97_02238400(1);
     }
 

src/overlay097/ov97_02236380.c

@@ -1591,7 +1591,7 @@ void BoxMonGBAToBoxMon(BoxPokemonGBA *param0, BoxPokemon *param1)
 
     BoxPokemon_SetValue(param1, 118, &v6[0]);
 
-    if (GetGBABoxMonData(param0, 3, NULL) != Unk_020E4C44) {
+    if (GetGBABoxMonData(param0, 3, NULL) != gGameLanguage) {
         v1 = 1;
         BoxPokemon_SetValue(param1, 77, &v1);
     }

src/overlay104/ov104_0222DCE0.c

@@ -15,6 +15,7 @@
 #include "overlay104/struct_ov104_0223A348_sub2.h"
 
 #include "cell_actor.h"
+#include "charcode_util.h"
 #include "communication_information.h"
 #include "communication_system.h"
 #include "flags.h"
@@ -29,7 +30,6 @@
 #include "strbuf.h"
 #include "string_template.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_0201D15C.h"
 #include "unk_0202C858.h"
 #include "unk_02038F8C.h"
@@ -229,7 +229,7 @@ u32 ov104_0222DD6C(UnkStruct_ov104_0223A348_sub2 *param0, u16 param1, u32 param2
     }
 
     param0->unk_1E_val2 = 0;
-    param0->unk_1F = Unk_020E4C44;
+    param0->unk_1F = gGameLanguage;
 
     v0 = PokemonPersonalData_GetSpeciesValue(param0->unk_00_val1_0, 25);
 
@@ -446,7 +446,7 @@ void ov104_0222E284(BattleParams *param0, UnkStruct_ov104_0223A348_sub1 *param1,
     param0->trainerIDs[param3] = param1->unk_00;
     param0->trainerData[param3].class = param1->unk_04;
 
-    GF_strcpy(&param0->trainerData[param3].name[0], &param1->unk_08[0]);
+    CharCode_Copy(&param0->trainerData[param3].name[0], &param1->unk_08[0]);
 
     v0 = (Sentence *)&param1->unk_20[0];
     param0->trainerData[param3].winMsg = *v0;

src/overlay104/ov104_0223A0C4.c

@@ -881,7 +881,7 @@ static u32 ov104_0223A3A8(UnkStruct_0204AFC4 *param0, UnkStruct_ov104_0223A348_s
     }
 
     param1->unk_1E_val2 = 0;
-    param1->unk_1F = Unk_020E4C44;
+    param1->unk_1F = gGameLanguage;
 
     v0 = PokemonPersonalData_GetSpeciesValue(param1->unk_00_val1_0, 25);
 

src/pokemon.c

@@ -33,6 +33,7 @@
 #include "overlay005/struct_ov5_021DE5D0.h"
 
 #include "cell_actor.h"
+#include "charcode_util.h"
 #include "flags.h"
 #include "heap.h"
 #include "inlines.h"
@@ -48,7 +49,6 @@
 #include "strbuf.h"
 #include "trainer_data.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_02005474.h"
 #include "unk_02006224.h"
 #include "unk_0200C6E4.h"
@@ -280,7 +280,7 @@ static void sub_02073E18(BoxPokemon *boxMon, int monSpecies, int monLevel, int m
     }
 
     BoxPokemon_SetValue(boxMon, MON_DATA_OT_ID, &monOTID);
-    BoxPokemon_SetValue(boxMon, MON_DATA_LANGUAGE, &Unk_020E4C44);
+    BoxPokemon_SetValue(boxMon, MON_DATA_LANGUAGE, &gGameLanguage);
     BoxPokemon_SetValue(boxMon, MON_DATA_SPECIES, &monSpecies);
     BoxPokemon_SetValue(boxMon, MON_DATA_SPECIES_NAME, NULL);
 
@@ -293,7 +293,7 @@ static void sub_02073E18(BoxPokemon *boxMon, int monSpecies, int monLevel, int m
     BoxPokemon_SetValue(boxMon, MON_DATA_FRIENDSHIP, &v1);
 
     BoxPokemon_SetValue(boxMon, MON_DATA_MET_LEVEL, &monLevel);
-    BoxPokemon_SetValue(boxMon, MON_DATA_MET_GAME, &Unk_020E4C40);
+    BoxPokemon_SetValue(boxMon, MON_DATA_MET_GAME, &gGameVersion);
 
     v1 = ITEM_POKE_BALL;
     BoxPokemon_SetValue(boxMon, MON_DATA_POKEBALL, &v1);
@@ -1490,7 +1490,7 @@ static void BoxPokemon_SetDataInternal(BoxPokemon *boxMon, enum PokemonDataParam
         charcode_t baseName[MON_NAME_LEN + 1];
 
         MessageLoader_GetSpeciesName(monDataBlockA->species, HEAP_ID_SYSTEM, baseName);
-        monDataBlockB->hasNickname = GF_strcmp(baseName, u16Value);
+        monDataBlockB->hasNickname = CharCode_Compare(baseName, u16Value);
     }
         // fall-through
     case MON_DATA_NICKNAME:
@@ -1506,7 +1506,7 @@ static void BoxPokemon_SetDataInternal(BoxPokemon *boxMon, enum PokemonDataParam
         MessageLoader_GetSpeciesName(monDataBlockA->species, HEAP_ID_SYSTEM, baseName);
         Strbuf_ToChars(value, nickname, NELEMS(nickname));
 
-        monDataBlockB->hasNickname = GF_strcmp(baseName, nickname);
+        monDataBlockB->hasNickname = CharCode_Compare(baseName, nickname);
     }
         // fall-through
     case MON_DATA_NICKNAME_STRBUF:
@@ -4401,7 +4401,7 @@ void Pokemon_SetCatchData(Pokemon *mon, TrainerInfo *param1, int monPokeball, in
 static void InitializeBoxPokemonAfterCapture(BoxPokemon *boxMon, TrainerInfo *param1, int monPokeball, int param3, int param4, int param5)
 {
     UpdateBoxMonStatusAndTrainerInfo(boxMon, param1, 0, param3, param5);
-    BoxPokemon_SetValue(boxMon, MON_DATA_MET_GAME, &Unk_020E4C40);
+    BoxPokemon_SetValue(boxMon, MON_DATA_MET_GAME, &gGameVersion);
     BoxPokemon_SetValue(boxMon, MON_DATA_POKEBALL, &monPokeball);
     BoxPokemon_SetValue(boxMon, MON_DATA_MET_TERRAIN, &param4);
 }

src/trainer_data.c

@@ -10,6 +10,7 @@
 #include "data/trainer_class_genders.h"
 #include "overlay006/battle_params.h"
 
+#include "charcode_util.h"
 #include "heap.h"
 #include "message.h"
 #include "narc.h"
@@ -19,7 +20,6 @@
 #include "savedata_misc.h"
 #include "strbuf.h"
 #include "trainer_data.h"
-#include "unk_020021B0.h"
 #include "unk_0201D15C.h"
 
 static void TrainerData_BuildParty(BattleParams *battleParams, int battler, int heapID);
@@ -39,7 +39,7 @@ void TrainerData_Encounter(BattleParams *battleParams, const SaveData *save, int
         battleParams->trainerData[i] = trdata;
 
         if (trdata.class == TRAINER_CLASS_RIVAL) {
-            GF_strcpy(battleParams->trainerData[i].name, rivalName);
+            CharCode_Copy(battleParams->trainerData[i].name, rivalName);
         } else {
             Strbuf *trainerName = MessageLoader_GetNewStrbuf(msgLoader, battleParams->trainerIDs[i]);
             Strbuf_ToChars(trainerName, battleParams->trainerData[i].name, TRAINER_NAME_LEN + 1);

src/trainer_info.c

@@ -5,9 +5,9 @@
 
 #include "constants/charcode.h"
 
+#include "charcode_util.h"
 #include "heap.h"
 #include "strbuf.h"
-#include "unk_020021B0.h"
 
 #define MONEY_MAX 999999
 
@@ -50,10 +50,10 @@ BOOL TrainerInfo_HasNoName(const TrainerInfo *info)
 
 void TrainerInfo_SetName(TrainerInfo *info, const charcode_t *name)
 {
-    int len = GF_strlen(name);
+    int len = CharCode_Length(name);
     GF_ASSERT(len < TRAINER_NAME_LEN + 1);
 
-    GF_strcpy(info->name, name);
+    CharCode_Copy(info->name, name);
 }
 
 void TrainerInfo_SetNameFromStrbuf(TrainerInfo *info, const Strbuf *name)
@@ -228,6 +228,6 @@ BOOL TrainerInfo_HasNationalDex(TrainerInfo *info)
 
 BOOL TrainerInfo_Equals(const TrainerInfo *info1, const TrainerInfo *info2)
 {
-    return GF_strncmp(info1->name, info2->name, TRAINER_NAME_LEN) == 0
+    return CharCode_CompareNumChars(info1->name, info2->name, TRAINER_NAME_LEN) == 0
         && info1->id == info2->id;
 }

src/unk_020021B0.c

@@ -1,149 +0,0 @@
-#include "unk_020021B0.h"
-
-#include <nitro.h>
-#include <string.h>
-
-static const u16 Unk_020E4C88[] = {
-    0xA2,
-    0xA3,
-    0xA4,
-    0xA5,
-    0xA6,
-    0xA7,
-    0xA8,
-    0xA9,
-    0xAA,
-    0xAB,
-    0xAC,
-    0xAD,
-    0xAE,
-    0xaf,
-    0xB0,
-    0xB1
-};
-
-static const int Unk_020E4CA8[] = {
-    1,
-    10,
-    100,
-    1000,
-    10000,
-    100000,
-    1000000,
-    10000000,
-    100000000,
-    1000000000,
-};
-
-u16 *GF_strcpy(u16 *param0, const u16 *param1)
-{
-    while (*param1 != 0xffff) {
-        *param0 = *param1;
-        param0++;
-        param1++;
-    }
-
-    *param0 = 0xffff;
-    return param0;
-}
-
-u16 *sub_020021D0(u16 *param0, const u16 *param1, u32 param2)
-{
-    u32 v0;
-
-    for (v0 = 0; v0 < param2; v0++) {
-        param0[v0] = param1[v0];
-    }
-
-    return &param0[param2];
-}
-
-u32 GF_strlen(const u16 *param0)
-{
-    u32 v0 = 0;
-
-    while (param0[v0] != 0xffff) {
-        v0++;
-    }
-
-    return v0;
-}
-
-BOOL GF_strcmp(const u16 *param0, const u16 *param1)
-{
-    while (*param0 == *param1) {
-        if (*param0 == 0xffff) {
-            return 0;
-        }
-
-        param0++;
-        param1++;
-    }
-
-    return 1;
-}
-
-BOOL GF_strncmp(const u16 *param0, const u16 *param1, u32 param2)
-{
-    while (*param0 == *param1) {
-        if (param2 == 0) {
-            return 0;
-        }
-
-        if ((*param0 == 0xffff) && (*param1 == 0xffff)) {
-            return 0;
-        }
-
-        param2--;
-        param0++;
-        param1++;
-    }
-
-    return 1;
-}
-
-u16 *sub_02002278(u16 *param0, u16 param1, u32 param2)
-{
-    u32 v0;
-
-    for (v0 = 0; v0 < param2; v0++) {
-        param0[v0] = param1;
-    }
-
-    return &param0[v0];
-}
-
-u16 *sub_02002294(u16 *param0, u32 param1)
-{
-    return sub_02002278(param0, 0xffff, param1);
-}
-
-u16 *sub_020022A4(u16 *param0, s32 param1, u32 param2, u32 param3)
-{
-    u32 v0;
-    u32 v1;
-    u32 v2;
-
-    for (v0 = Unk_020E4CA8[param3 - 1]; v0 > 0; v0 /= 10) {
-        v2 = (u16)(param1 / v0);
-        v1 = (u32)(param1 - (v0 * v2));
-
-        if (param2 == 2) {
-            *param0 = (u16)(v2 >= 10 ? 0xe2 : Unk_020E4C88[v2]);
-            param0++;
-        } else if ((v2 != 0) || (v0 == 1)) {
-            param2 = 2;
-            *param0 = (u16)(v2 >= 10 ? 0xe2 : Unk_020E4C88[v2]);
-            param0++;
-        } else if (param2 == 1) {
-            *param0 = 0x1;
-            param0++;
-        }
-
-        param1 = v1;
-    }
-
-    *param0 = 0xffff;
-
-    return param0;
-}

src/unk_0200C440.c

@@ -4,9 +4,9 @@
 #include <string.h>
 
 #include "bg_window.h"
+#include "charcode_util.h"
 #include "graphics.h"
 #include "heap.h"
-#include "unk_020021B0.h"
 
 typedef struct UnkStruct_0200C440_t {
     void *unk_00;
@@ -97,7 +97,7 @@ void sub_0200C5BC(UnkStruct_0200C440 *param0, s32 param1, u32 param2, int param3
 {
     int v0;
 
-    sub_020022A4(param0->unk_08, param1, param3, param2);
+    CharCode_FromInt(param0->unk_08, param1, param3, param2);
 
     for (v0 = 0; param0->unk_08[v0] != 0xffff; v0++) {
         if ((param0->unk_08[v0] >= 0xa2) && (param0->unk_08[v0] <= 0xab)) {
@@ -125,7 +125,7 @@ void sub_0200C67C(UnkStruct_0200C440 *param0, s32 param1, u32 param2, int param3
     v2 = param4;
     v1 = param0->unk_28 | (param0->unk_28 << 4);
 
-    sub_020022A4(param0->unk_08, param1, param3, param2);
+    CharCode_FromInt(param0->unk_08, param1, param3, param2);
 
     for (v0 = 0; param0->unk_08[v0] != 0xffff; v0++) {
         if ((param0->unk_08[v0] >= 0xa2) && (param0->unk_08[v0] <= 0xab)) {

src/unk_02027F84.c

@@ -5,9 +5,9 @@
 
 #include "struct_defs/struct_02027F8C.h"
 
+#include "charcode_util.h"
 #include "heap.h"
 #include "savedata.h"
-#include "unk_020021B0.h"
 
 int PalPad_SaveSize(void)
 {
@@ -41,7 +41,7 @@ u8 sub_02027FC4(const UnkStruct_02027F8C *param0, int param1)
 
 BOOL sub_02027FCC(const UnkStruct_02027F8C *param0, const UnkStruct_02027F8C *param1)
 {
-    if (0 == GF_strcmp(param0->unk_00, param1->unk_00)) {
+    if (0 == CharCode_Compare(param0->unk_00, param1->unk_00)) {
         if (param0->unk_10 == param1->unk_10) {
             return 1;
         }

src/unk_02028124.c

@@ -9,6 +9,7 @@
 #include "struct_defs/struct_02028430.h"
 #include "struct_defs/union_02028328.h"
 
+#include "charcode_util.h"
 #include "heap.h"
 #include "party.h"
 #include "pokemon.h"
@@ -16,7 +17,6 @@
 #include "save_player.h"
 #include "savedata.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_02014A84.h"
 
 static int sub_020284E8(UnkStruct_0202818C *param0, int param1);
@@ -45,11 +45,11 @@ void sub_02028124(UnkStruct_0202818C *param0)
 
     param0->unk_00 = 0;
     param0->unk_04 = 0;
-    param0->unk_05 = Unk_020E4C44;
-    param0->unk_06 = Unk_020E4C40;
+    param0->unk_05 = gGameLanguage;
+    param0->unk_06 = gGameVersion;
     param0->unk_07 = 0xFFFF;
 
-    sub_02002294(param0->unk_08, 8);
+    CharCode_FillWithEOS(param0->unk_08, 8);
 
     for (v0 = 0; v0 < 3; v0++) {
         param0->unk_18[v0].val2 = 0xFFFF;
@@ -101,7 +101,7 @@ void sub_020281AC(UnkStruct_0202818C *param0, u8 param1, u8 param2, SaveData *pa
     v9 = Party_GetFromSavedata(param3);
     v8 = SaveData_GetTrainerInfo(param3);
 
-    GF_strcpy(param0->unk_08, TrainerInfo_Name(v8));
+    CharCode_Copy(param0->unk_08, TrainerInfo_Name(v8));
 
     param0->unk_04 = (u8)TrainerInfo_Gender(v8);
     param0->unk_00 = TrainerInfo_ID(v8);

src/unk_020298BC.c

@@ -563,7 +563,7 @@ void sub_02029F5C(UnkStruct_02029C68 *param0)
     GF_ASSERT(inline_02029CA8(param0));
 
     param0->unk_00 = 0x2345;
-    param0->unk_71 = Unk_020E4C44;
+    param0->unk_71 = gGameLanguage;
 }
 
 void sub_02029F84(UnkStruct_02029C68 *param0)

src/unk_0202B37C.c

@@ -6,9 +6,9 @@
 #include "struct_defs/struct_0202B4A0.h"
 #include "struct_defs/struct_0202B510.h"
 
+#include "charcode_util.h"
 #include "savedata.h"
 #include "strbuf.h"
-#include "unk_020021B0.h"
 #include "unk_0201D15C.h"
 
 UnkStruct_0202B4A0 *Unk_021C079C;
@@ -139,7 +139,7 @@ BOOL sub_0202B4D8(const UnkStruct_0202B4A0 *param0, const u16 *param1)
     for (v0 = 0; v0 < 6; v0++) {
         v1 = &param0->unk_00[v0];
 
-        if (!GF_strncmp(param1, v1->unk_00, 7 + 1)) {
+        if (!CharCode_CompareNumChars(param1, v1->unk_00, 7 + 1)) {
             return 1;
         }
     }
@@ -164,11 +164,11 @@ BOOL sub_0202B530(const UnkStruct_0202B510 *param0, const UnkStruct_0202B510 *pa
 {
     int v0;
 
-    if (GF_strncmp(param0->unk_10, param1->unk_10, 7 + 1)) {
+    if (CharCode_CompareNumChars(param0->unk_10, param1->unk_10, 7 + 1)) {
         return 0;
     }
 
-    if (GF_strncmp(param0->unk_00, param1->unk_00, 7 + 1)) {
+    if (CharCode_CompareNumChars(param0->unk_00, param1->unk_00, 7 + 1)) {
         return 0;
     }
 

src/unk_0202E840.c

@@ -12,13 +12,13 @@
 #include "struct_defs/struct_0202EA80.h"
 #include "struct_defs/struct_0202EE10.h"
 
+#include "charcode_util.h"
 #include "game_records.h"
 #include "heap.h"
 #include "save_player.h"
 #include "savedata.h"
 #include "strbuf.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_0202B37C.h"
 #include "unk_0203061C.h"
 
@@ -52,13 +52,13 @@ void sub_0202E858(UnkStruct_0202E858 *param0)
     param0->unk_00 = 0;
     param0->unk_04 = 0;
 
-    sub_02002294(param0->unk_08, 7 + 1);
+    CharCode_FillWithEOS(param0->unk_08, 7 + 1);
     SaveData_SetChecksum(28);
 }
 
 BOOL sub_0202E870(UnkStruct_0202E858 *param0)
 {
-    if (GF_strlen(param0->unk_08) == 0) {
+    if (CharCode_Length(param0->unk_08) == 0) {
         return 0;
     }
 
@@ -229,7 +229,7 @@ static BOOL sub_0202EA98(const UnkStruct_0202E858 *param0, const UnkStruct_0202E
         return 0;
     }
 
-    if (GF_strcmp(param0->unk_08, param1->unk_08)) {
+    if (CharCode_Compare(param0->unk_08, param1->unk_08)) {
         return 0;
     }
 

src/unk_02030A80.c

@@ -9,6 +9,7 @@
 #include "struct_defs/struct_0202F298_sub1.h"
 #include "struct_defs/struct_02030A80.h"
 
+#include "charcode_util.h"
 #include "heap.h"
 #include "pokemon.h"
 #include "save_player.h"
@@ -16,7 +17,6 @@
 #include "savedata_misc.h"
 #include "strbuf.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_02014A84.h"
 #include "unk_02014D38.h"
 #include "unk_02025CB0.h"
@@ -53,7 +53,7 @@ void sub_02030AA0(UnkStruct_02030A80 *param0, SaveData *param1)
 
     MiscSaveBlock_FavoriteMon(v3, &v4, &v5, &v6);
     MI_CpuClear8(param0, sizeof(UnkStruct_02030A80));
-    GF_strcpy(param0->unk_00, TrainerInfo_Name(v0));
+    CharCode_Copy(param0->unk_00, TrainerInfo_Name(v0));
 
     param0->unk_10 = TrainerInfo_ID(v0);
     param0->unk_14 = TrainerInfo_Gender(v0);

src/unk_02030CE8.c

@@ -8,10 +8,10 @@
 
 #include "overlay096/struct_ov96_0223B574.h"
 
+#include "charcode_util.h"
 #include "save_player.h"
 #include "savedata.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_0201D15C.h"
 #include "unk_0202C858.h"
 
@@ -122,7 +122,7 @@ static void sub_02030DD0(SaveData *param0, UnkStruct_ov96_0223B574 *param1)
     param1->unk_03 = sub_0202C8C4(v0);
     param1->unk_04 = TrainerInfo_ID(v1);
 
-    GF_strcpy(param1->unk_08, TrainerInfo_Name(v1));
+    CharCode_Copy(param1->unk_08, TrainerInfo_Name(v1));
     param1->unk_10 = 0;
 
     strcpy(param1->unk_1C, v2);

src/unk_020474B8.c

@@ -413,7 +413,7 @@ BOOL ScrCmd_272(ScriptContext *param0)
     v0 = Strbuf_Init(10 + 1, 11);
 
     Strbuf_CopyChars(v0, MiscSaveBlock_TabletName(SaveData_MiscSaveBlock(param0->fieldSystem->saveData)));
-    StringTemplate_SetStrbuf(*v2, v3, v0, 0, 0, Unk_020E4C44);
+    StringTemplate_SetStrbuf(*v2, v3, v0, 0, 0, gGameLanguage);
     Strbuf_Free(v0);
 
     return 0;

src/unk_0204AEE8.c

@@ -377,7 +377,7 @@ static u32 sub_0204B1E8(UnkStruct_0204AFC4 *param0, UnkStruct_ov104_0223A348_sub
     }
 
     param1->unk_1E_val2 = 0;
-    param1->unk_1F = Unk_020E4C44;
+    param1->unk_1F = gGameLanguage;
 
     v0 = PokemonPersonalData_GetSpeciesValue(param1->unk_00_val1_0, 25);
 

src/unk_02051D8C.c

@@ -22,6 +22,7 @@
 #include "savedata/save_table.h"
 
 #include "bag.h"
+#include "charcode_util.h"
 #include "communication_system.h"
 #include "core_sys.h"
 #include "field_overworld_state.h"
@@ -40,7 +41,6 @@
 #include "savedata.h"
 #include "strbuf.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_02025CB0.h"
 #include "unk_0202602C.h"
 #include "unk_0202631C.h"
@@ -423,7 +423,7 @@ void sub_020524E4(BattleParams *param0, const FieldSystem *fieldSystem, const Pa
         int v12 = TrainerInfo_Gender(v0);
 
         param0->trainerData[0].class = sub_0205CA14(v12, v11, 1);
-        GF_strcpy(&param0->trainerData[0].name[0], TrainerInfo_Name(param0->unk_D0[0]));
+        CharCode_Copy(&param0->trainerData[0].name[0], TrainerInfo_Name(param0->unk_D0[0]));
         param0->trainerData[2] = param0->trainerData[0];
     } else {
         sub_02052894(param0);
@@ -570,6 +570,6 @@ BOOL BattleParams_PlayerDidNotCapture(u32 battleResult)
 void sub_02052894(BattleParams *param0)
 {
     param0->trainerData[0].class = TrainerInfo_Gender(param0->unk_D0[0]);
-    GF_strcpy(&param0->trainerData[0].name[0], TrainerInfo_Name(param0->unk_D0[0]));
+    CharCode_Copy(&param0->trainerData[0].name[0], TrainerInfo_Name(param0->unk_D0[0]));
     param0->trainerData[2] = param0->trainerData[0];
 }

src/unk_0206CCB0.c

@@ -34,6 +34,7 @@
 #include "savedata/save_table.h"
 
 #include "bag.h"
+#include "charcode_util.h"
 #include "field_system.h"
 #include "heap.h"
 #include "inlines.h"
@@ -48,7 +49,6 @@
 #include "strbuf.h"
 #include "string_template.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_0201D15C.h"
 #include "unk_0202631C.h"
 #include "unk_02027B70.h"
@@ -622,7 +622,7 @@ void sub_0206D088(TVBroadcast *param0, u8 param1, const TrainerInfo *param2)
     v0->unk_00 = 1;
     v0->unk_01 = param1;
 
-    GF_strcpy(v0->unk_06, TrainerInfo_Name(param2));
+    CharCode_Copy(v0->unk_06, TrainerInfo_Name(param2));
 
     v0->unk_03 = TrainerInfo_RegionCode(param2);
     v0->unk_04 = TrainerInfo_GameCode(param2);
@@ -827,7 +827,7 @@ static void sub_0206D3E4(FieldSystem *fieldSystem, int param1)
     GF_ASSERT(sizeof(UnkUnion_0206D1B8) == 40);
     MI_CpuClearFast(&v0, 40);
 
-    sub_020021D0(v1->unk_00, sub_0202B42C(v2, 1, 0), 10 + 1);
+    CharCode_CopyNumChars(v1->unk_00, sub_0202B42C(v2, 1, 0), 10 + 1);
     sub_0206CD70(fieldSystem, 2, param1, v1);
 }
 

src/unk_02071D40.c

@@ -14,6 +14,7 @@
 
 #include "field/field_system.h"
 
+#include "charcode_util.h"
 #include "field_system.h"
 #include "game_records.h"
 #include "heap.h"
@@ -21,7 +22,6 @@
 #include "save_player.h"
 #include "savedata.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_0202631C.h"
 #include "unk_0202854C.h"
 #include "unk_0202C7FC.h"
@@ -174,7 +174,7 @@ static void sub_02072038(const u16 param0, const u8 param1, const u16 *param2, c
     param7->unk_28 = param0;
     param7->unk_04_2 = param1;
 
-    sub_020021D0(param7->unk_08, param2, 7 + 1);
+    CharCode_CopyNumChars(param7->unk_08, param2, 7 + 1);
 
     param7->unk_1C = param3;
     param7->unk_20 = param4;

src/unk_02073700.c

@@ -27,8 +27,8 @@ void sub_02073700(SaveData *param0, int param1, UnkStruct_ov96_0223B450_sub1 *pa
     MI_CpuCopy8(TrainerInfo_Name(v1), param2->unk_A8, 8 * 2);
     *((u32 *)param2->unk_BC) = TrainerInfo_ID(v1);
 
-    param2->unk_B8 = Unk_020E4C40;
-    param2->unk_B9 = Unk_020E4C44;
+    param2->unk_B8 = gGameVersion;
+    param2->unk_B9 = gGameLanguage;
     param2->unk_BA = (u8)sub_0202C8C0(v2);
     param2->unk_BB = (u8)sub_0202C8C4(v2);
     param2->unk_C8_val1_1 = TrainerInfo_Gender(v1);

src/unk_0207A6DC.c

@@ -19,13 +19,13 @@
 #include "battle/battle_io.h"
 #include "battle/ov16_0223DF00.h"
 
+#include "charcode_util.h"
 #include "communication_system.h"
 #include "heap.h"
 #include "party.h"
 #include "sys_task.h"
 #include "sys_task_manager.h"
 #include "trainer_info.h"
-#include "unk_020021B0.h"
 #include "unk_02027F84.h"
 #include "unk_0202CC64.h"
 #include "unk_0202F1D4.h"
@@ -656,7 +656,7 @@ static void sub_0207ADD4(TrainerInfo *param0, UnkStruct_02027F8C *param1, UnkStr
 {
     int v0;
 
-    GF_strcpy(param2->unk_00, TrainerInfo_Name(param0));
+    CharCode_Copy(param2->unk_00, TrainerInfo_Name(param0));
 
     param2->unk_10 = TrainerInfo_ID(param0);
     param2->unk_14 = TrainerInfo_RegionCode(param0);

src/unk_0208694C.c

@@ -12,6 +12,7 @@
 
 #include "bg_window.h"
 #include "cell_actor.h"
+#include "charcode_util.h"
 #include "core_sys.h"
 #include "font.h"
 #include "game_options.h"
@@ -29,7 +30,6 @@
 #include "string_template.h"
 #include "sys_task_manager.h"
 #include "text.h"
-#include "unk_020021B0.h"
 #include "unk_020041CC.h"
 #include "unk_02005474.h"
 #include "unk_0200679C.h"
@@ -1127,11 +1127,11 @@ static int sub_02086F3C(OverlayManager *param0, int *param1)
         Heap_FreeToHeap(v4);
     }
 
-    if ((v0->unk_158 == 0) || (GF_strcmp(v0->unk_D8, v0->unk_118) == 0) || sub_02086F14(v0->unk_D8)) {
+    if ((v0->unk_158 == 0) || (CharCode_Compare(v0->unk_D8, v0->unk_118) == 0) || sub_02086F14(v0->unk_D8)) {
         sub_02086E6C(v0, v1);
     } else {
-        GF_strcpy(v0->unk_118, v0->unk_D8);
-        GF_strcpy(v1->unk_1C, v0->unk_D8);
+        CharCode_Copy(v0->unk_118, v0->unk_D8);
+        CharCode_Copy(v1->unk_1C, v0->unk_D8);
         Strbuf_CopyChars(v1->unk_18, v0->unk_D8);
     }
 
@@ -1413,7 +1413,7 @@ static void sub_0208737C(UnkStruct_02087A10 *param0, OverlayManager *param1)
     param0->unk_178 = MessageUtil_ExpandedStrbuf(param0->unk_168, param0->unk_16C, Unk_020F2850[param0->unk_00], 18);
     param0->unk_17C = MessageUtil_ExpandedStrbuf(param0->unk_168, param0->unk_16C, 8, 18);
     param0->unk_184 = MessageLoader_GetNewStrbuf(param0->unk_16C, 7);
-    param0->unk_158 = GF_strlen(param0->unk_118);
+    param0->unk_158 = CharCode_Length(param0->unk_118);
     param0->unk_1C.unk_00 = 0;
     param0->unk_1C.unk_04 = 1;
     param0->unk_1C.unk_08 = -1;
@@ -1863,7 +1863,7 @@ static void sub_02087FC0(UnkStruct_02087A10 *param0, OverlayManager *param1, NAR
         UnkStruct_0208737C *v1 = (UnkStruct_0208737C *)OverlayManager_Args(param1);
 
         if (param0->unk_118[0] != 0xffff) {
-            GF_strcpy(param0->unk_D8, param0->unk_118);
+            CharCode_Copy(param0->unk_D8, param0->unk_118);
             sub_02088554(&param0->unk_41C[3], param0->unk_D8, 0, 0, 12, TEXT_SPEED_INSTANT, TEXT_COLOR(14, 15, 1), NULL);
         }
     }