finish refactoring ewram defines into ewram.h.

21 files changed, 210 insertions, 158 deletions

diff --git a/include/ewram.h b/include/ewram.h
index fa405e59c..341f23432 100755
--- a/include/ewram.h
+++ b/include/ewram.h
@@ -3,6 +3,10 @@
 
 extern u8 ewram[];
 
+// Note: we have duplicate ewram labels because its clear some memory
+// regions overlap others but have different definitions. Until some
+// dupes can be determined to be the same, they will be deliberate
+// seperated.
 #define BATTLE_STRUCT                   ((struct BattleStruct *)     (ewram + 0x0))
 #define ewram0_2                        (*(struct Struct2000000 *)(ewram + 0x0))
 #define namingScreenData                (*(struct NamingScreenData *)(ewram + 0x0))
@@ -10,8 +14,13 @@ extern u8 ewram[];
 #define ewram0_3                        (*(struct UnknownStruct3 *)(ewram + 0x0))
 #define ewram0_4                        (*(struct Unk2000000 *)(ewram + 0x0))
 #define ewram0_5                        (*(struct UnkStruct *)(ewram + 0x0))
+#define eMatsudaDebugVar                (ewram[0x0])
+#define eBrendanSprite                  (ewram + 0x0)
+#define ewram0_6                        (u32)(&ewram[0])
+#define ewram0_7                        (&ewram[0])
 #define ewram4                          (*(struct UnknownStruct8 *)(ewram + 0x4))
 #define ewram520                        ((struct UnknownStruct7 *)(ewram + 0x00520))
+#define eMaySprite                      (ewram + 0x800)
 #define ewram888                        (ewram + 0x888)
 #define ewramBlankMapName               (ewram + 0xA48)
 #define ewramA6E                        (ewram[0xA6E])
@@ -26,13 +35,44 @@ extern u8 ewram[];
 #define ARRAY_2007800                   ((struct EasyChatPair *)(ewram + 0x7800))
 #define ARRAY_2007900                   ((struct EasyChatPair *)(ewram + 0x7900))
 #define unk_2008000                     (*(struct PlayerRecords *)(ewram + 0x08000))
+#define ewram8000                       (&ewram[0x8000])
+#define ewram8800                       (&ewram[0x8800])
+#define ewram9000                       (&ewram[0x9000])
+#define ewram9800                       (&ewram[0x9800])
+#define ewramA000                       (&ewram[0xA000])
+#define ewramA800                       (&ewram[0xA800])
+#define ewramB000                       (&ewram[0xB000])
+#define ewramB800                       (&ewram[0xB800])
 #define TRANSITION_STRUCT               (*(struct TransitionData *)   (ewram + 0xC000))
+#define ewramC000                       (&ewram[0xC000])
 #define ewramC03C                       (&ewram[0xC03C])
+#define ewramC800                       (&ewram[0xC800])
+#define ewramD000                       (&ewram[0xD000])
+#define ewramD800                       (&ewram[0xD800])
+#define ewramE000                       (&ewram[0xE000])
+#define ewramE800                       (&ewram[0xE800])
+#define ewramF000                       (&ewram[0xF000])
+#define ewramF800                       (&ewram[0xF800])
 #define ewram_2010000                   (*(struct TradeEwramStruct *)(ewram + 0x10000))
+#define ewram10000                      (&ewram[0x10000])
+#define ewram10800                      (&ewram[0x10800])
+#define ewram11000                      (&ewram[0x11000])
+#define ewram11800                      (&ewram[0x11800])
+#define ewram13000                      (&ewram[0x13000])
 #define EWRAM_14000                     ((u8 *)(ewram + 0x14000))
+#define ewram14000                      (&ewram[0x14000])
+#define ewram14000arr(i, data)          (ewram[0x14000 + i + data])
+#define ewram14004arr(i, data)          (ewram[0x14004 + i + data])
+#define ewram14008arr(i, data)          (ewram[0x14008 + data + i])
+#define ewram14800                      (&ewram[0x14800])
 #define EWRAM_14800                     ((u16 *)(ewram + 0x14800))
 #define sEvoInfo                        ((*(struct EvoInfo*)(ewram + 0x14800)))
 #define EWRAM_15000                     ((u8 *)(ewram + 0x15000))
+#define ewram15000                      (&ewram[0x15000])
+#define ewram15000arr(i, data)          (ewram[0x15000 + data + i])
+#define ewram15800                      (&ewram[0x15800])
+#define ewram15DDE                      (ewram[0x15DDE])
+#define ewram15DDF                      (ewram[0x15DDF])
 #define ewram16000                      (ewram[0x16000])
 #define ewram16001                      (ewram[0x16001])
 #define ewram16002                      (ewram[0x16002])
@@ -56,7 +96,7 @@ extern u8 ewram[];
 #define ewram16064arr(bank)             (ewram[0x16064 + bank])
 #define ewram16068arr(i)                (ewram[0x16068 + i])
 #define UNK_201606C_ARRAY               (ewram + 0x1606C) // lazy define but whatever.
-#define ewram1606Carr(i, a, mul)        (ewram[0x1606C + i + a * mul])
+#define ewram1606Carr(i, a)             (ewram[0x1606C + i + a * 3])
 #define ewram16078                      (ewram[0x16078])
 #define ewram16084                      (ewram[0x16084])
 #define ewram16086                      (ewram[0x16086])
@@ -101,6 +141,7 @@ extern u8 ewram[];
 #define ewram160F0arr(i)                (ewram[0x160F0 + i])
 #define ewram160F8                      (ewram[0x160F8])
 #define ewram160F9                      (ewram[0x160F9])
+#define eStatHp                         (ewram[0x160FA])
 #define ewram160FB                      (ewram[0x160FB])
 #define ewram16100                      ((u8 *)(ewram + 0x16100))
 #define ewram16100arr(i)                (ewram[0x16100 + i])
@@ -110,10 +151,12 @@ extern u8 ewram[];
 #define ewram16110                      (ewram[0x16110])
 #define ewram16111                      (ewram[0x16111])
 #define ewram16113                      (ewram[0x16113])
+#define ewram16400                      (ewram + 0x16400)
 #define AI_THINKING_STRUCT              ((struct AI_ThinkingStruct *)(ewram + 0x16800))
 #define UNK_2016A00_STRUCT              ((struct UnkBattleStruct1 *) (ewram + 0x16A00))
 #define AI_STACK                        ((struct AI_Stack *)         (ewram + 0x16C00))
 #define AI_ARRAY_160CC(i)               (ewram[0x160CC + i * 2])
+#define eLearnMoveStruct                (struct LearnMoveStruct *)(ewram + 0x17000)
 #define ewram17002                      (&ewram[0x17002])
 #define ewram17100                      (*(struct Struct2017100 *)(ewram + 0x17100))
 #define B_BATTLESCRIPTS_STACK           ((struct scriptsStack *)     (ewram + 0x17110))
@@ -129,10 +172,16 @@ extern u8 ewram[];
 #define unk_2018000                     (*(struct PlayerRecords *)(ewram + 0x18000))
 #define EWRAM_18000                     ((u16 *)(ewram + 0x18000))
 #define ewram18000                      ((u16 *)(ewram + 0x18000))
+#define ewram18000_2                    (&ewram[0x18000])
+#define eBerryBlenderData               (struct BerryBlenderData*)(&ewram[0x18000])
+#define eEggHatchData                   (struct EggHatchData*)(&ewram[0x18000])
 #define UNK_2018000_STRUCT              (*(struct UnknownStruct2018000 *)(ewram + 0x18000))
 #define ewram18300                      ((u16 *)(ewram + 0x18300))
+#define ewram18800                      (&ewram[0x18800])
+#define ewram19000                      (&ewram[0x19000])
 #define EWRAM_19348                     (*(u16 *)(ewram + 0x19348))
 #define ewram19348                      (*(struct Struct2019348 *)(ewram + 0x19348))
+#define ewram19800                      (&ewram[0x19800])
 #define ewram1B000                      (*(struct Unk201B000 *)(ewram + 0x1B000))
 #define ewram1B000_alt                  (*(struct Struct201B000 *)(ewram + 0x1B000))
 #define EWRAM_1B000                     ewram1B000_alt // FIXME
@@ -140,10 +189,13 @@ extern u8 ewram[];
 #define EWRAM_1C000                     (*(struct Struct201C000 *)(ewram + 0x1C000))
 #define ewram1C000                      (*(struct Unk201C000 *)(ewram + 0x1C000))
 #define ewram1c000                      (*(struct Unk201C000 *)(ewram + 0x1C000)) // FIXME, names too similar
+#define eHallOfFameMons1                (struct HallofFameMons*)(&ewram[0x1C000])
 #define ewram1D000                      ((struct Pokemon *)(ewram + 0x1D000))
 #define ewram1D000_2                    ((u16 *)(ewram + 0x1D000))
 #define ewram1D400                      ((u16 *)(ewram + 0x1D400))
 #define ewramSavedItemsPocket           ((struct ItemSlot *)(ewram + 0x1E000))  // saved items pocket (for Wally battle)
+#define ewram1E000(i)                   (ewram[0x1E000 + i])
+#define eHallOfFameMons2                (struct HallofFameMons*)(&ewram[0x1E000])
 #define HALL_OF_FAME_SHEET_0            ((u8 *)(ewram + 0x1E000))
 #define HALL_OF_FAME_SHEET_1            ((u8 *)(ewram + 0x1E800))
 #define ewram_1f000                     (*(struct DecoPCPointers *)(ewram + 0x1f000))
@@ -151,8 +203,12 @@ extern u8 ewram[];
 #define HALL_OF_FAME_SHEET_2            ((u8 *)(ewram + 0x1F000))
 #define EWRAM_1F800                     ((u16 *)(ewram + 0x1F800))
 #define ewram1FE00                      (*(struct Unk201FE00 *)(ewram + 0x1FE00))
+#define ewram1FFFC                      (ewram[0x1FFFC])
+#define ewram1FFFD                      (ewram[0x1FFFD])
 #define gHelperState                    (ewram[0x1FFFE])
+#define ewram1FFFE                      (ewram[0x1FFFE])
 #define gReshowState                    (ewram[0x1FFFF])
 #define ewramBagSetupStep               (ewram[0x1FFFF])
+#define ewram1FFFF                      (ewram[0x1FFFF])
 
 #endif
diff --git a/src/battle/battle_2.c b/src/battle/battle_2.c
index 38c60dee1..8d27750bd 100644
--- a/src/battle/battle_2.c
+++ b/src/battle/battle_2.c
@@ -2290,7 +2290,7 @@ void sub_8012258(u8 a)
     u8 r1;
 
     for (i = 0; i < 3; i++)
-        gUnknown_02038470[i] = ewram1606Carr(i, a, 3);
+        gUnknown_02038470[i] = ewram1606Carr(i, a);
     r4 = pokemon_order_func(gBattlePartyID[a]);
     r1 = pokemon_order_func(ewram16068arr(a));
     sub_8094C98(r4, r1);
@@ -2298,15 +2298,15 @@ void sub_8012258(u8 a)
     {
         for (i = 0; i < 3; i++)
         {
-            ewram1606Carr(i, a, 3) = gUnknown_02038470[i];
-            ewram1606Carr(i, (a ^ 2), 3) = gUnknown_02038470[i];
+            ewram1606Carr(i, a) = gUnknown_02038470[i];
+            ewram1606Carr(i, (a ^ 2)) = gUnknown_02038470[i];
         }
     }
     else
     {
         for (i = 0; i < 3; i++)
         {
-            ewram1606Carr(i, a, 3) = gUnknown_02038470[i];
+            ewram1606Carr(i, a) = gUnknown_02038470[i];
         }
     }
 }
diff --git a/src/battle/battle_4.c b/src/battle/battle_4.c
index 5c028d86b..d7ca298c3 100644
--- a/src/battle/battle_4.c
+++ b/src/battle/battle_4.c
@@ -10768,12 +10768,12 @@ static void atk51_switch_handle_order(void)
         ewram16068arr(gActiveBank) = gBattleBufferB[gActiveBank][1];
         if (gBattleTypeFlags & BATTLE_TYPE_MULTI)
         {
-            ewram1606Carr(0, gActiveBank, 3) &= 0xF;
-            ewram1606Carr(0, gActiveBank, 3) |= (gBattleBufferB[gActiveBank][2] & 0xF0);
-            ewram1606Carr(1, gActiveBank, 3) = gBattleBufferB[gActiveBank][3];
-            ewram1606Carr(0, (gActiveBank ^ 2), 3) &= (0xF0);
-            ewram1606Carr(0, (gActiveBank ^ 2), 3) |= (gBattleBufferB[gActiveBank][2] & 0xF0) >> 4;
-            ewram1606Carr(2, (gActiveBank ^ 2), 3) = gBattleBufferB[gActiveBank][3];
+            ewram1606Carr(0, gActiveBank) &= 0xF;
+            ewram1606Carr(0, gActiveBank) |= (gBattleBufferB[gActiveBank][2] & 0xF0);
+            ewram1606Carr(1, gActiveBank) = gBattleBufferB[gActiveBank][3];
+            ewram1606Carr(0, (gActiveBank ^ 2)) &= (0xF0);
+            ewram1606Carr(0, (gActiveBank ^ 2)) |= (gBattleBufferB[gActiveBank][2] & 0xF0) >> 4;
+            ewram1606Carr(2, (gActiveBank ^ 2)) = gBattleBufferB[gActiveBank][3];
         }
         else
             sub_8012258(gActiveBank);
diff --git a/src/battle/battle_7.c b/src/battle/battle_7.c
index 6c0a4489c..4ca1baa53 100644
--- a/src/battle/battle_7.c
+++ b/src/battle/battle_7.c
@@ -309,8 +309,8 @@ void BattleLoadOpponentMonSprite(struct Pokemon *pkmn, u8 b)
     if (species == SPECIES_CASTFORM)
     {
         paletteOffset = 0x100 + b * 16;
-        LZDecompressWram(lzPaletteData, ewram + 0x16400);
-        LoadPalette(ewram + 0x16400 + gBattleMonForms[b] * 32, paletteOffset, 0x20);
+        LZDecompressWram(lzPaletteData, ewram16400);
+        LoadPalette(ewram16400 + gBattleMonForms[b] * 32, paletteOffset, 0x20);
     }
     if (ewram17800[b].transformedSpecies != 0)
     {
@@ -361,8 +361,8 @@ void BattleLoadPlayerMonSprite(struct Pokemon *pkmn, u8 b)
     if (species == SPECIES_CASTFORM)
     {
         paletteOffset = 0x100 + b * 16;
-        LZDecompressWram(lzPaletteData, ewram + 0x16400);
-        LoadPalette(ewram + 0x16400 + gBattleMonForms[b] * 32, paletteOffset, 0x20);
+        LZDecompressWram(lzPaletteData, ewram16400);
+        LoadPalette(ewram16400 + gBattleMonForms[b] * 32, paletteOffset, 0x20);
     }
     if (ewram17800[b].transformedSpecies != 0)
     {
@@ -622,7 +622,7 @@ void sub_8031FC4(u8 a, u8 b, bool8 c)
     {
         StartSpriteAnim(&gSprites[gObjectBankIDs[a]], ewram17840.unk0);
         paletteOffset = 0x100 + a * 16;
-        LoadPalette(ewram + 0x16400 + ewram17840.unk0 * 32, paletteOffset, 32);
+        LoadPalette(ewram16400 + ewram17840.unk0 * 32, paletteOffset, 32);
         gBattleMonForms[a] = ewram17840.unk0;
         if (ewram17800[a].transformedSpecies != 0)
         {
@@ -694,7 +694,7 @@ void sub_8031FC4(u8 a, u8 b, bool8 c)
         LoadPalette(ewram, paletteOffset, 32);
         if (species == SPECIES_CASTFORM)
         {
-            u16 *paletteSrc = (u16 *)(ewram + 0x16400);
+            u16 *paletteSrc = (u16 *)ewram16400; // TODO: avoid casting?
 
             LZDecompressWram(lzPaletteData, paletteSrc);
             LoadPalette(paletteSrc + gBattleMonForms[b] * 16, paletteOffset, 32);
diff --git a/src/battle/battle_party_menu.c b/src/battle/battle_party_menu.c
index ab8b7a694..97e9dc0fc 100644
--- a/src/battle/battle_party_menu.c
+++ b/src/battle/battle_party_menu.c
@@ -204,7 +204,7 @@ void sub_8094B6C(u8 a, u8 b, u8 c)
 
     if (IsLinkDoubleBattle())
     {
-        u8 *arr = ewram + 0x1606C + a * 3;
+        u8 *arr = &ewram1606Carr(0, a);
 
         for (i = 0, j = 0; i < 3; i++)
         {
diff --git a/src/debug/matsuda_debug_menu.c b/src/debug/matsuda_debug_menu.c
index 765ec1f26..ab96ada23 100644
--- a/src/debug/matsuda_debug_menu.c
+++ b/src/debug/matsuda_debug_menu.c
@@ -15,6 +15,7 @@
 #include "task.h"
 #include "text.h"
 #include "unknown_task.h"
+#include "ewram.h"
 
 extern u8 gUnknown_0203856C;
 extern u8 gUnknown_0203857D[][64];
@@ -45,7 +46,6 @@ extern u8 gUnknown_083C9282[];
 extern const u8 gUnknown_083C928E[][2];
 extern u8 gUnknown_083C9296[];
 extern u8 gUnknown_083C92A8[];
-extern u8 ewram[];
 extern u8 gMatsudaDebugMenu_GoBackText[];
 extern u8 gMatsudaDebugMenu_BattlePointsText[];
 extern u8 gMatsudaDebugMenu_StartText[];
@@ -739,7 +739,7 @@ void sub_80AACC4(void)
     {
         SetDebugMonForContest();
         if (!(gIsLinkContest & 1))
-            sub_80AE82C(ewram[0]);
+            sub_80AE82C(eMatsudaDebugVar);
         SetMainCallback2(sub_80AB47C);
     }
 }
@@ -748,7 +748,7 @@ void sub_80AAD08(struct Sprite *sprite, s8 var2)
 {
     if (var2 == 1)
     {
-        ewram[0] = sprite->data3;
+        eMatsudaDebugVar = sprite->data3;
         SetMainCallback2(sub_80AACC4);
         BeginNormalPaletteFade(0xFFFFFFFF, 0, 0, 0x10, 0);
     }
diff --git a/src/engine/main_menu.c b/src/engine/main_menu.c
index 3a343a0de..bfbf0dcd6 100644
--- a/src/engine/main_menu.c
+++ b/src/engine/main_menu.c
@@ -22,6 +22,7 @@
 #include "text.h"
 #include "title_screen.h"
 #include "unknown_task.h"
+#include "ewram.h"
 
 #define BirchSpeechUpdateWindowText() ((u8)MenuUpdateWindowText_OverrideLineLength(24))
 
@@ -54,8 +55,6 @@ extern const u8 gUnknown_081E796C[];
 
 extern const union AffineAnimCmd *const gSpriteAffineAnimTable_81E79AC[];
 
-extern u8 ewram[];
-
 //Menu layouts
 enum
 {
@@ -1419,14 +1418,14 @@ void AddBirchSpeechObjects(u8 taskId)
     gTasks[taskId].tAzurillSpriteId = spriteId;
 
     //Create Brendan sprite
-    spriteId = CreateTrainerSprite(0, 120, 60, 0, ewram);
+    spriteId = CreateTrainerSprite(0, 120, 60, 0, eBrendanSprite);
     gSprites[spriteId].callback = nullsub_34;
     gSprites[spriteId].invisible = 1;
     gSprites[spriteId].oam.priority = 0;
     gTasks[taskId].tBrendanSpriteId = spriteId;
 
     //Create May sprite
-    spriteId = CreateTrainerSprite(1, 120, 60, 0, ewram + 0x800);
+    spriteId = CreateTrainerSprite(1, 120, 60, 0, eMaySprite);
     gSprites[spriteId].callback = nullsub_34;
     gSprites[spriteId].invisible = 1;
     gSprites[spriteId].oam.priority = 0;
diff --git a/src/engine/mystery_event_menu.c b/src/engine/mystery_event_menu.c
index d70414da4..38912be86 100644
--- a/src/engine/mystery_event_menu.c
+++ b/src/engine/mystery_event_menu.c
@@ -13,8 +13,7 @@
 #include "strings2.h"
 #include "task.h"
 #include "text.h"
-
-extern u8 ewram[];
+#include "ewram.h"
 
 static EWRAM_DATA u8 gUnknown_02039338 = 0;
 
diff --git a/src/engine/save_failed_screen.c b/src/engine/save_failed_screen.c
index d194c1625..06505c0c2 100644
--- a/src/engine/save_failed_screen.c
+++ b/src/engine/save_failed_screen.c
@@ -11,6 +11,7 @@
 #include "strings.h"
 #include "task.h"
 #include "text.h"
+#include "ewram.h"
 
 // In English 1.0, the text window is too small, causing text to overflow.
 
@@ -22,8 +23,6 @@
 
 #define CLOCK_WIN_TOP (MSG_WIN_TOP - 4)
 
-extern u8 ewram[];
-
 static EWRAM_DATA u16 gSaveFailedType = 0;
 static EWRAM_DATA u16 gSaveFailedClockInfo[9] = {0};
 
diff --git a/src/field/dewford_trend.c b/src/field/dewford_trend.c
index 5f4d5abfe..102784066 100644
--- a/src/field/dewford_trend.c
+++ b/src/field/dewford_trend.c
@@ -7,8 +7,6 @@
 #include "text.h"
 #include "ewram.h"
 
-extern u8 ewram[];
-
 extern u16 gScriptResult;
 extern u16 gSpecialVar_0x8004;
 
diff --git a/src/field/pokeblock.c b/src/field/pokeblock.c
index e5084da18..a4497295f 100644
--- a/src/field/pokeblock.c
+++ b/src/field/pokeblock.c
@@ -299,7 +299,7 @@ static bool8 sub_810B6C0(void)
         case 10:
             if (MultistepInitMenuWindowContinue())
             {
-                ewram[0x1ffff] = 0;
+                ewram1FFFF = 0;
                 gMain.state++;
             }
             break;
@@ -317,7 +317,7 @@ static bool8 sub_810B6C0(void)
             gMain.state++;
             break;
         case 13:
-            ewram[0x1fffe] = sub_810BA50(0x38, 0x40, 0);
+            ewram1FFFE = sub_810BA50(0x38, 0x40, 0);
             gMain.state++;
             break;
         case 14:
@@ -369,27 +369,27 @@ void sub_810B96C(void)
 
 static bool8 sub_810B998(void)
 {
-    switch (ewram[0x1ffff])
+    switch (ewram1FFFF)
     {
         case 0:
             LZDecompressVram(gMenuPokeblock_Gfx, BG_CHAR_ADDR(2));
-            ewram[0x1ffff]++;
+            ewram1FFFF++;
             break;
         case 1:
             LZDecompressWram(gMenuPokeblock_Tilemap, gBGTilemapBuffers[2]);
-            ewram[0x1ffff]++;
+            ewram1FFFF++;
             break;
         case 2:
             LoadCompressedPalette(gMenuPokeblock_Pal, 0, 0xc0);
-            ewram[0x1ffff]++;
+            ewram1FFFF++;
             break;
         case 3:
             LoadCompressedObjectPic(&gUnknown_083F7F74);
-            ewram[0x1ffff]++;
+            ewram1FFFF++;
             break;
         case 4:
             LoadCompressedObjectPalette(&gUnknown_083F7F7C);
-            ewram[0x1ffff] = 0;
+            ewram1FFFF = 0;
             return TRUE;
     }
     return FALSE;
@@ -611,7 +611,7 @@ static void sub_810BDAC(bool8 flag)
 static void sub_810BF38(bool8 flag)
 {
     PlaySE(SE_SELECT);
-    gSprites[ewram[0x1fffe]].callback = sub_810C8D4;
+    gSprites[ewram1FFFE].callback = sub_810C8D4;
     sub_810BDAC(flag);
 }
 
diff --git a/src/pokemon/learn_move.c b/src/pokemon/learn_move.c
index 33252c66b..a47896ea5 100644
--- a/src/pokemon/learn_move.c
+++ b/src/pokemon/learn_move.c
@@ -16,8 +16,8 @@
 #include "strings2.h"
 #include "task.h"
 #include "trig.h"
+#include "ewram.h"
 
-extern u8 ewram[];
 extern u16 gSpecialVar_0x8004;
 extern u16 gSpecialVar_0x8005;
 extern u8 gTileBuffer[];
@@ -277,7 +277,7 @@ void CB2_InitLearnMove(void)
     ResetSpriteData();
     FreeAllSpritePalettes();
     ResetTasks();
-    sLearnMoveStruct = (struct LearnMoveStruct *)(ewram + 0x17000);
+    sLearnMoveStruct = eLearnMoveStruct;
     ClearLearnMoveVars();
     sLearnMoveStruct->partyMon = gSpecialVar_0x8004;
     sub_8133558();
@@ -312,7 +312,7 @@ void sub_81327A4(void)
     ResetSpriteData();
     FreeAllSpritePalettes();
     ResetTasks();
-    sLearnMoveStruct = (struct LearnMoveStruct *)(ewram + 0x17000);
+    sLearnMoveStruct = eLearnMoveStruct;
     sub_8133558();
     sLearnMoveStruct->unk2C6 = gSpecialVar_0x8005;
     SetVBlankCallback(VBlankCB_LearnMove);
diff --git a/src/pokemon/pokeblock_feed.c b/src/pokemon/pokeblock_feed.c
index b0b710803..5f218a6f6 100644
--- a/src/pokemon/pokeblock_feed.c
+++ b/src/pokemon/pokeblock_feed.c
@@ -540,7 +540,7 @@ static bool8 TransitionToPokeblockFeedScene(void)
     case 6:
         if (MultistepInitMenuWindowContinue())
         {
-            ewram[0x1FFFF] = 0;
+            ewram1FFFF = 0;
             gMain.state++;
         }
         break;
@@ -551,11 +551,11 @@ static bool8 TransitionToPokeblockFeedScene(void)
         }
         break;
     case 8:
-        ewram[0x1FFFD] = sub_81480B4();
+        ewram1FFFD = sub_81480B4();
         gMain.state++;
         break;
     case 9:
-        ewram[0x1FFFE] = PokeblockFeed_CreatePokeSprite(&gPlayerParty[gPokeblockMonID]);
+        ewram1FFFE = PokeblockFeed_CreatePokeSprite(&gPlayerParty[gPokeblockMonID]);
         gMain.state++;
         break;
     case 10:
@@ -611,13 +611,13 @@ static bool8 sub_8147B20(struct Pokemon* mon)
 {
     u16 species;
     u32 PiD, TiD;
-    switch (ewram[0x1FFFF])
+    switch (ewram1FFFF)
     {
     case 0:
         species = GetMonData(mon, MON_DATA_SPECIES2);
         PiD = GetMonData(mon, MON_DATA_PERSONALITY);
         HandleLoadSpecialPokePic(&gMonFrontPicTable[species], gMonFrontPicCoords[species].coords, gMonFrontPicCoords[species].y_offset, 0x2000000, gUnknown_081FAF4C[1], species, PiD);
-        ewram[0x1FFFF]++;
+        ewram1FFFF++;
         break;
     case 1:
         {
@@ -629,37 +629,37 @@ static bool8 sub_8147B20(struct Pokemon* mon)
             palette = GetMonSpritePalStructFromOtIdPersonality(species, TiD, PiD);
             LoadCompressedObjectPalette(palette);
             GetMonSpriteTemplate_803C56C(palette->tag, 1);
-            ewram[0x1FFFF]++;
+            ewram1FFFF++;
         }
         break;
     case 2:
         LoadCompressedObjectPic(&gUnknown_083F7F74);
-        ewram[0x1FFFF]++;
+        ewram1FFFF++;
         break;
     case 3:
         LoadCompressedObjectPalette(&gUnknown_083F7F7C);
-        ewram[0x1FFFF]++;
+        ewram1FFFF++;
         break;
     case 4:
         LoadCompressedObjectPic(&sUnknown_084121DC);
-        ewram[0x1FFFF]++;
+        ewram1FFFF++;
         break;
     case 5:
         SetPokeblockFeedSpritePal(gScriptItemId);
         LoadCompressedObjectPalette(&sPokeblockFeedSpritePal);
-        ewram[0x1FFFF]++;
+        ewram1FFFF++;
         break;
     case 6:
         LZDecompressVram(gBattleTerrainTiles_Building, (void*)(VRAM));
-        ewram[0x1FFFF]++;
+        ewram1FFFF++;
         break;
     case 7:
         LZDecompressVram(gUnknown_08E782FC, (void*)(VRAM + 0xE800));
-        ewram[0x1FFFF]++;
+        ewram1FFFF++;
         break;
     case 8:
         LoadCompressedPalette(gBattleTerrainPalette_BattleTower, 0x20, 0x60);
-        ewram[0x1FFFF] = 0;
+        ewram1FFFF = 0;
         return TRUE;
     }
     return FALSE;
@@ -684,13 +684,13 @@ static void sub_8147CC8(u8 taskID)
             sub_81481DC();
             break;
         case 255:
-            sub_8148108(ewram[0x1FFFD], gTasks[taskID].data[1]);
+            sub_8148108(ewram1FFFD, gTasks[taskID].data[1]);
             break;
         case 269:
-            ewram[0x1FFFC] = CreatePokeblockSprite();
+            ewram1FFFC = CreatePokeblockSprite();
             break;
         case 281:
-            sub_8148044(ewram[0x1FFFE]);
+            sub_8148044(ewram1FFFE);
             break;
         case 297:
             gTasks[taskID].func = Task_PrintAtePokeblockText;
diff --git a/src/pokemon/pokemon_1.c b/src/pokemon/pokemon_1.c
index 9a92f379d..750a9892a 100644
--- a/src/pokemon/pokemon_1.c
+++ b/src/pokemon/pokemon_1.c
@@ -9,6 +9,7 @@
 #include "sprite.h"
 #include "string_util.h"
 #include "text.h"
+#include "ewram.h"
 
 //Extracts the upper 16 bits of a 32-bit number
 #define HIHALF(n) (((n) & 0xFFFF0000) >> 16)
@@ -16,7 +17,6 @@
 //Extracts the lower 16 bits of a 32-bit number
 #define LOHALF(n) ((n) & 0xFFFF)
 
-extern u8 ewram[];
 extern u16 gMoveToLearn;
 
 static EWRAM_DATA u8 sLearningMoveTableID = 0;
@@ -436,9 +436,9 @@ void CalculateMonStats(struct Pokemon *mon)
         newMaxHP = (((n + hpEV / 4) * level) / 100) + level + 10;
     }
 
-    ewram[0x160FA] = newMaxHP - oldMaxHP;
-    if (ewram[0x160FA] == 0)
-        ewram[0x160FA] = 1;
+    eStatHp = newMaxHP - oldMaxHP;
+    if (eStatHp == 0)
+        eStatHp = 1;
 
     SetMonData(mon, MON_DATA_MAX_HP, &newMaxHP);
 
diff --git a/src/pokemon/pokemon_menu.c b/src/pokemon/pokemon_menu.c
index 93a3dd797..3a2c12db5 100644
--- a/src/pokemon/pokemon_menu.c
+++ b/src/pokemon/pokemon_menu.c
@@ -50,7 +50,6 @@ extern u8 gUnknown_0202E8F5;
 extern u8 gUnknown_0202E8F6;
 extern u8 gUnknown_02038561;
 extern u16 gUnknown_0202E8F8;
-extern u8 ewram[];
 extern void (*gUnknown_03004AE4)(u8 taskID, u16 itemID, TaskFunc func);
 extern TaskFunc gUnknown_03005CF0;
 
diff --git a/src/rom3.c b/src/rom3.c
index 0cd73c44a..ceb7785ac 100644
--- a/src/rom3.c
+++ b/src/rom3.c
@@ -399,16 +399,18 @@ void PrepareBufferDataTransferLink(u8 a, u16 size, u8 *data)
         gTasks[gUnknown_020238C4].data[12] = gTasks[gUnknown_020238C4].data[14];
         gTasks[gUnknown_020238C4].data[14] = 0;
     }
-    ewram[gTasks[gUnknown_020238C4].data[14] + 0x14000] = a;
-    ewram[gTasks[gUnknown_020238C4].data[14] + 0x14001] = gActiveBank;
-    ewram[gTasks[gUnknown_020238C4].data[14] + 0x14002] = gBankAttacker;
-    ewram[gTasks[gUnknown_020238C4].data[14] + 0x14003] = gBankTarget;
-    ewram[gTasks[gUnknown_020238C4].data[14] + 0x14004] = r9;
-    ewram[gTasks[gUnknown_020238C4].data[14] + 0x14005] = (r9 & 0x0000FF00) >> 8;
-    ewram[gTasks[gUnknown_020238C4].data[14] + 0x14006] = gAbsentBankFlags;
-    ewram[gTasks[gUnknown_020238C4].data[14] + 0x14007] = gEffectBank;
+
+	ewram14000arr(0, gTasks[gUnknown_020238C4].data[14]) = a;
+    ewram14000arr(1, gTasks[gUnknown_020238C4].data[14]) = gActiveBank;
+    ewram14000arr(2, gTasks[gUnknown_020238C4].data[14]) = gBankAttacker;
+    ewram14000arr(3, gTasks[gUnknown_020238C4].data[14]) = gBankTarget;
+    ewram14000arr(4, gTasks[gUnknown_020238C4].data[14]) = r9;
+    ewram14000arr(5, gTasks[gUnknown_020238C4].data[14]) = (r9 & 0x0000FF00) >> 8;
+    ewram14000arr(6, gTasks[gUnknown_020238C4].data[14]) = gAbsentBankFlags;
+    ewram14000arr(7, gTasks[gUnknown_020238C4].data[14]) = gEffectBank;
+
     for (i = 0; i < size; i++)
-        ewram[gTasks[gUnknown_020238C4].data[14] + 0x14008 + i] = data[i];
+        ewram14008arr(i, gTasks[gUnknown_020238C4].data[14]) = data[i];
     gTasks[gUnknown_020238C4].data[14] = gTasks[gUnknown_020238C4].data[14] + r9 + 8;
 }
 
@@ -448,8 +450,8 @@ void sub_800C1A8(u8 taskId)
                     gTasks[taskId].data[12] = 0;
                     gTasks[taskId].data[15] = 0;
                 }
-                var = (ewram[gTasks[taskId].data[15] + 0x14004] | (ewram[gTasks[taskId].data[15] + 0x14005] << 8)) + 8;
-                SendBlock(bitmask_all_link_players_but_self(), &ewram[gTasks[taskId].data[15] + 0x14000], var);
+                var = (ewram14004arr(0, gTasks[taskId].data[15]) | (ewram14004arr(1, gTasks[taskId].data[15]) << 8)) + 8;
+                SendBlock(bitmask_all_link_players_but_self(), &ewram14000arr(0, gTasks[taskId].data[15]), var);
                 gTasks[taskId].data[11]++;
             }
             else
@@ -462,7 +464,7 @@ void sub_800C1A8(u8 taskId)
     case 4:
         if (sub_8007ECC())
         {
-            var = ewram[gTasks[taskId].data[15] + 0x14004] | (ewram[gTasks[taskId].data[15] + 0x14005] << 8);
+            var = (ewram14004arr(0, gTasks[taskId].data[15]) | (ewram14004arr(1, gTasks[taskId].data[15]) << 8));
             gTasks[taskId].data[13] = 1;
             gTasks[taskId].data[15] = gTasks[taskId].data[15] + var + 8;
             gTasks[taskId].data[11] = 3;
@@ -533,28 +535,28 @@ void sub_800C47C(u8 taskId)
             gTasks[taskId].data[12] = 0;
             gTasks[taskId].data[15] = 0;
         }
-        r4 = ewram[0x15000 + gTasks[taskId].data[15] + 1];
-        r7 = ewram[0x15000 + gTasks[taskId].data[15] + 4] | (ewram[0x15000 + gTasks[taskId].data[15] + 5] << 8);
-        switch (ewram[0x15000 + gTasks[taskId].data[15] + 0])
+        r4 = ewram15000arr(1, gTasks[taskId].data[15]);
+        r7 = ewram15000arr(4, gTasks[taskId].data[15]) | (ewram15000arr(5, gTasks[taskId].data[15]) << 8);
+        switch (ewram15000arr(0, gTasks[taskId].data[15]))
         {
         case 0:
             if (gBattleExecBuffer & gBitTable[r4])
                 return;
-            memcpy(gBattleBufferA[r4], &ewram[0x15000 + gTasks[taskId].data[15] + 8], r7);
+            memcpy(gBattleBufferA[r4], &ewram15000arr(8, gTasks[taskId].data[15]), r7);
             sub_80155A4(r4);
             if (!(gBattleTypeFlags & BATTLE_TYPE_WILD))
             {
-                gBankAttacker = ewram[0x15000 + gTasks[taskId].data[15] + 2];
-                gBankTarget = ewram[0x15000 + gTasks[taskId].data[15] + 3];
-                gAbsentBankFlags = ewram[0x15000 + gTasks[taskId].data[15] + 6];
-                gEffectBank = ewram[0x15000 + gTasks[taskId].data[15] + 7];
+                gBankAttacker = ewram15000arr(2, gTasks[taskId].data[15]);
+                gBankTarget = ewram15000arr(3, gTasks[taskId].data[15]);
+                gAbsentBankFlags = ewram15000arr(6, gTasks[taskId].data[15]);
+                gEffectBank = ewram15000arr(7, gTasks[taskId].data[15]);
             }
             break;
         case 1:
-            memcpy(gBattleBufferB[r4], &ewram[0x15000 + gTasks[taskId].data[15] + 8], r7);
+            memcpy(gBattleBufferB[r4], &ewram15000arr(8, gTasks[taskId].data[15]), r7);
             break;
         case 2:
-            r2 = ewram[0x15000 + gTasks[taskId].data[15] + 8];
+            r2 = ewram15000arr(8, gTasks[taskId].data[15]);
             gBattleExecBuffer &= ~(gBitTable[r4] << (r2 * 4));
             break;
         }
diff --git a/src/scene/berry_blender.c b/src/scene/berry_blender.c
index 7ffcc5185..b5d36ad1e 100644
--- a/src/scene/berry_blender.c
+++ b/src/scene/berry_blender.c
@@ -20,6 +20,7 @@
 #include "menu_cursor.h"
 #include "trig.h"
 #include "pokeblock.h"
+#include "ewram.h"
 
 //needed to match Blender_ControlHitPitch
 struct MusicPlayerInfo
@@ -207,7 +208,6 @@ extern void de_sub_8073110();
 
 extern struct MusicPlayerInfo gMPlay_SE2;
 extern struct MusicPlayerInfo gMPlay_BGM;
-extern u8 ewram[];
 extern u16 gScriptItemId;
 extern u8 gUnknown_020297ED;
 extern u8 byte_3002A68;
@@ -828,7 +828,7 @@ static bool8 sub_804E2EC(void)
     switch (gBerryBlenderData->field_1)
     {
     case 0:
-        LZDecompressWram(gUnknown_08E6C100, &ewram[0x10000]);
+        LZDecompressWram(gUnknown_08E6C100, ewram10000);
         gBerryBlenderData->field_1++;
         break;
     case 1:
@@ -843,7 +843,7 @@ static bool8 sub_804E2EC(void)
         break;
     case 2:
         {
-            void* offsetRead = &ewram[0x10000];
+            void* offsetRead = ewram10000;
             void* offsetWrite = (void*)(VRAM);
             u32 size = 0x2000;
             while (TRUE)
@@ -862,16 +862,16 @@ static bool8 sub_804E2EC(void)
         }
         break;
     case 3:
-        LZDecompressWram(gUnknown_08E6C920, &ewram[0x10000]);
+        LZDecompressWram(gUnknown_08E6C920, ewram10000);
         gBerryBlenderData->field_1++;
         break;
     case 4:
-        LZDecompressWram(gUnknown_08E6D354, &ewram[0x13000]);
+        LZDecompressWram(gUnknown_08E6D354, ewram13000);
         gBerryBlenderData->field_1++;
         break;
     case 5:
         {
-            void* offsetRead = &ewram[0x10000];
+            void* offsetRead = ewram10000;
             void* offsetWrite = (void*)(VRAM + 0xE000);
 
             DmaCopy16(3, offsetRead, offsetWrite, 0x1000);
@@ -880,7 +880,7 @@ static bool8 sub_804E2EC(void)
         break;
     case 6:
         {
-            void* offsetRead = &ewram[0x11000];
+            void* offsetRead = ewram11000;
             void* offsetWrite = (void*)(VRAM + 0xF000);
 
             DmaCopy16(3, offsetRead, offsetWrite, 0x1000);
@@ -890,7 +890,7 @@ static bool8 sub_804E2EC(void)
     case 7:
         {
             u16 i;
-            u16* palStore = (u16*)(&ewram[0x13000]);
+            u16* palStore = (u16*)(ewram13000);
             void* offsetRead;
             void* offsetWrite;
 
@@ -898,7 +898,7 @@ static bool8 sub_804E2EC(void)
             {
                 *(palStore + i) |= 0x100;
             }
-            offsetRead = &ewram[0x13000];
+            offsetRead = ewram13000;
             offsetWrite = (void*)(VRAM + 0x6000);
             DmaCopy16(3, offsetRead, offsetWrite, 0x500);
             LoadPalette(sBlenderOuterPal, 0x80, 0x20);
@@ -937,7 +937,7 @@ void sub_804E538(void)
 {
     u8* field6F; //this temp value is needed to match
 
-    gBerryBlenderData = (struct BerryBlenderData*)(&ewram[0x18000]);
+    gBerryBlenderData = eBerryBlenderData;
 
     field6F = &gBerryBlenderData->field_6F;
     gBerryBlenderData->field_0 = 0;
@@ -1111,7 +1111,7 @@ void sub_804E990(void)
     s32 i;
 
     REG_DISPCNT = 0;
-    gBerryBlenderData = (struct BerryBlenderData*)(&ewram[0x18000]);
+    gBerryBlenderData = eBerryBlenderData;
     gBerryBlenderData->field_0 = 0;
     gBerryBlenderData->field_134 = 0;
     for (i = 0; i < BLENDER_MAX_PLAYERS; i++)
diff --git a/src/scene/contest_painting.c b/src/scene/contest_painting.c
index 928b59760..9df2d56da 100644
--- a/src/scene/contest_painting.c
+++ b/src/scene/contest_painting.c
@@ -12,8 +12,7 @@
 #include "strings.h"
 #include "text.h"
 #include "unknown_task.h"
-
-extern u8 ewram[];
+#include "ewram.h"
 
 static u8 gUnknown_03000750;
 static u16 gUnknown_03000752;
@@ -184,15 +183,15 @@ static void ShowContestPainting(void)
     case 2:
         SeedRng(gMain.vblankCounter1);
         InitKeys();
-        ContestPaintingInitWindow(ewram[0x15DDF]);
+        ContestPaintingInitWindow(ewram15DDF);
         gMain.state++;
         break;
     case 3:
-        sub_8107090(ewram[0x15DDE], ewram[0x15DDF]);
+        sub_8107090(ewram15DDE, ewram15DDF);
         gMain.state++;
         break;
     case 4:
-        ContestPaintingPrintCaption(ewram[0x15DDE], ewram[0x15DDF]);
+        ContestPaintingPrintCaption(ewram15DDE, ewram15DDF);
         LoadPalette(gUnknown_083F6140, 0, 1 * 2);
         DmaClear32(3, PLTT, 0x400);
         BeginFastPaletteFade(2);
diff --git a/src/scene/egg_hatch.c b/src/scene/egg_hatch.c
index 032dcd284..d363e4bcd 100644
--- a/src/scene/egg_hatch.c
+++ b/src/scene/egg_hatch.c
@@ -20,8 +20,8 @@
 #include "trig.h"
 #include "rng.h"
 #include "trade.h"
+#include "ewram.h"
 
-extern u8 ewram[];
 extern struct SpriteTemplate gUnknown_02024E8C;
 
 struct EggHatchData
@@ -416,7 +416,7 @@ static u8 EggHatchCreateMonSprite(u8 a0, u8 switchID, u8 pokeID)
         {
             u16 species = GetMonData(mon, MON_DATA_SPECIES);
             u32 pid = GetMonData(mon, MON_DATA_PERSONALITY);
-            HandleLoadSpecialPokePic(&gMonFrontPicTable[species], gMonFrontPicCoords[species].coords, gMonFrontPicCoords[species].y_offset,(u32)(&ewram[0]), gUnknown_081FAF4C[2 * a0 + 1], species, pid);
+            HandleLoadSpecialPokePic(&gMonFrontPicTable[species], gMonFrontPicCoords[species].coords, gMonFrontPicCoords[species].y_offset, ewram0_6, gUnknown_081FAF4C[2 * a0 + 1], species, pid);
             LoadCompressedObjectPalette(GetMonSpritePalStruct(mon));
         }
         break;
@@ -460,7 +460,7 @@ static void CB2_EggHatch_0(void)
     {
     case 0:
         REG_DISPCNT = 0;
-        gEggHatchData = (struct EggHatchData*)(&ewram[0x18000]);
+        gEggHatchData = eEggHatchData;
         gEggHatchData->eggPartyID = gSpecialVar_0x8004;
         gEggHatchData->eggShardVelocityID = 0;
         ResetTasks();
@@ -479,8 +479,8 @@ static void CB2_EggHatch_0(void)
         break;
     case 2:
         LZDecompressVram(&gUnknown_08D00000, (void*)(VRAM));
-        CpuSet(&gUnknown_08D00524, &ewram[0], 0x800);
-        DmaCopy16(3, &ewram[0], (void*)(VRAM + 0x2800), 0x500);
+        CpuSet(&gUnknown_08D00524, ewram0_7, 0x800);
+        DmaCopy16(3, ewram0_7, (void*)(VRAM + 0x2800), 0x500);
         LoadCompressedPalette(&gUnknown_08D004E0, 0, 0x20);
         gMain.state++;
         break;
diff --git a/src/scene/hall_of_fame.c b/src/scene/hall_of_fame.c
index 6f7df576b..72bd051da 100644
--- a/src/scene/hall_of_fame.c
+++ b/src/scene/hall_of_fame.c
@@ -17,10 +17,10 @@
 #include "decompress.h"
 #include "rng.h"
 #include "trig.h"
+#include "ewram.h"
 
 static EWRAM_DATA u32 sUnknown_0203931C = 0;
 
-extern u8 ewram[];
 extern bool8 gUnknown_02039324; // has hall of fame records
 extern void (*gGameContinueCallback)(void);
 extern struct MusicPlayerInfo gMPlay_BGM;
@@ -156,69 +156,69 @@ static const struct OamData sOamData_840B598 =
 
 void* const gUnknown_0840B5A0[] =
 {
-    &ewram[0x08000],
-    &ewram[0x0A000],
-    &ewram[0x0C000],
-    &ewram[0x0E000],
-    &ewram[0x10000],
-    &ewram[0x14000],
-    &ewram[0x18000]
+    ewram8000,
+    ewramA000,
+    ewramC000,
+    ewramE000,
+    ewram10000,
+    ewram14000,
+    ewram18000_2
 };
 
 static const struct SpriteFrameImage sSpriteImageTable_840B5BC[] =
 {
-    {&ewram[0x8000], 0x800},
-    {&ewram[0x8800], 0x800},
-    {&ewram[0x9000], 0x800},
-    {&ewram[0x9800], 0x800}
+    {ewram8000, 0x800},
+    {ewram8800, 0x800},
+    {ewram9000, 0x800},
+    {ewram9800, 0x800}
 };
 
 static const struct SpriteFrameImage sSpriteImageTable_840B5DC[] =
 {
-    {&ewram[0xA000], 0x800},
-    {&ewram[0xA800], 0x800},
-    {&ewram[0xB000], 0x800},
-    {&ewram[0xB800], 0x800}
+    {ewramA000, 0x800},
+    {ewramA800, 0x800},
+    {ewramB000, 0x800},
+    {ewramB800, 0x800}
 };
 
 static const struct SpriteFrameImage sSpriteImageTable_840B5FC[] =
 {
-    {&ewram[0xC000], 0x800},
-    {&ewram[0xC800], 0x800},
-    {&ewram[0xD000], 0x800},
-    {&ewram[0xD800], 0x800}
+    {ewramC000, 0x800},
+    {ewramC800, 0x800},
+    {ewramD000, 0x800},
+    {ewramD800, 0x800}
 };
 
 static const struct SpriteFrameImage sSpriteImageTable_840B61C[] =
 {
-    {&ewram[0xE000], 0x800},
-    {&ewram[0xE800], 0x800},
-    {&ewram[0xF000], 0x800},
-    {&ewram[0xF800], 0x800}
+    {ewramE000, 0x800},
+    {ewramE800, 0x800},
+    {ewramF000, 0x800},
+    {ewramF800, 0x800}
 };
 
 static const struct SpriteFrameImage sSpriteImageTable_840B63C[] =
 {
-    {&ewram[0x10000], 0x800},
-    {&ewram[0x10800], 0x800},
-    {&ewram[0x11000], 0x800},
-    {&ewram[0x11800], 0x800}
+    {ewram10000, 0x800},
+    {ewram10800, 0x800},
+    {ewram11000, 0x800},
+    {ewram11800, 0x800}
 };
 
 static const struct SpriteFrameImage sSpriteImageTable_840B65C[] =
 {
-    {&ewram[0x14000], 0x800},
-    {&ewram[0x14800], 0x800},
-    {&ewram[0x15000], 0x800},
-    {&ewram[0x15800], 0x800}
+    {ewram14000, 0x800},
+    {ewram14800, 0x800},
+    {ewram15000, 0x800},
+    {ewram15800, 0x800}
 };
 
 static const struct SpriteFrameImage sSpriteImageTable_840B67C[] =
 {
-    {&ewram[0x18000], 0x800},
-    {&ewram[0x18800], 0x800},
-    {&ewram[0x19000], 0x800},
-    {&ewram[0x19800], 0x800}
+    {ewram18000_2, 0x800},
+    {ewram18800, 0x800},
+    {ewram19000, 0x800},
+    {ewram19800, 0x800}
 };
 
 static const struct SpriteFrameImage* const sUnknown_0840B69C[7] =
@@ -486,7 +486,7 @@ static void sub_8141FC4(void)
 static void sub_8141FF8(u8 taskID)
 {
     u16 i, j;
-    struct HallofFameMons* fameMons = (struct HallofFameMons*)(&ewram[0x1C000]);
+    struct HallofFameMons* fameMons = eHallOfFameMons1;
 
     gTasks[taskID].tPokesNumber = 0; // valid pokes
     for (i = 0; i < 6; i++)
@@ -530,13 +530,13 @@ static void sub_8141FF8(u8 taskID)
 static void sub_814217C(u8 taskID)
 {
     u16 i;
-    struct HallofFameMons* fameMons = (struct HallofFameMons*)(&ewram[0x1C000]);
-    struct HallofFameMons* lastSavedTeam = (struct HallofFameMons*)(&ewram[0x1E000]);
+    struct HallofFameMons* fameMons = eHallOfFameMons1;
+    struct HallofFameMons* lastSavedTeam = eHallOfFameMons2;
 
     if (gUnknown_02039324 == FALSE)
     {
         for (i = 0; i < 0x2000; i++)
-            ewram[i + 0x1E000] = 0;
+            ewram1E000(i) = 0;
     }
     else
         sub_8125EC8(3);
@@ -548,8 +548,8 @@ static void sub_814217C(u8 taskID)
     }
     if (i >= HALL_OF_FAME_MAX_TEAMS)
     {
-        struct HallofFameMons* r5 = (struct HallofFameMons*)(&ewram[0x1E000]);
-        struct HallofFameMons* r6 = (struct HallofFameMons*)(&ewram[0x1E000]);
+        struct HallofFameMons* r5 = eHallOfFameMons2;
+        struct HallofFameMons* r6 = eHallOfFameMons2;
         r5++;
         for (i = 0; i < HALL_OF_FAME_MAX_TEAMS - 1; i++, r6++, r5++)
         {
@@ -592,7 +592,7 @@ static void sub_8142320(u8 taskID)
     u8 spriteID;
     s16 xPos, yPos, field4, field6;
 
-    struct HallofFameMons* fameMons = (struct HallofFameMons*)(&ewram[0x1C000]);
+    struct HallofFameMons* fameMons = eHallOfFameMons1;
     u16 currPokeID = gTasks[taskID].tDisplayedPoke;
     struct HallofFameMon* currMon = &fameMons->mons[currPokeID];
 
@@ -623,7 +623,7 @@ static void sub_8142320(u8 taskID)
 
 static void sub_8142404(u8 taskID)
 {
-    struct HallofFameMons* fameMons = (struct HallofFameMons*)(&ewram[0x1C000]);
+    struct HallofFameMons* fameMons = eHallOfFameMons1;
     u16 currPokeID = gTasks[taskID].tDisplayedPoke;
     struct HallofFameMon* currMon = &fameMons->mons[currPokeID];
 
@@ -639,7 +639,7 @@ static void sub_8142404(u8 taskID)
 
 static void sub_8142484(u8 taskID)
 {
-    struct HallofFameMons* fameMons = (struct HallofFameMons*)(&ewram[0x1C000]);
+    struct HallofFameMons* fameMons = eHallOfFameMons1;
     u16 currPokeID = gTasks[taskID].tDisplayedPoke;
     struct HallofFameMon* currMon = &fameMons->mons[currPokeID];
 
@@ -808,7 +808,7 @@ void sub_81428CC(void)
             REG_BLDY = 0;
             sub_81435B8();
 
-            fameMons = (struct HallofFameMons*)(&ewram[0x1C000]);
+            fameMons = eHallOfFameMons1;
             fameMons->mons[0] = sDummyFameMon;
 
             sub_80C5CD4(fameMons);
@@ -847,7 +847,7 @@ static void sub_8142A28(u8 taskID)
         u16 *vram1, *vram2;
 
         u16 i;
-        struct HallofFameMons* savedTeams = (struct HallofFameMons*)(&ewram[0x1E000]);
+        struct HallofFameMons* savedTeams = eHallOfFameMons2;
         for (i = 0; i < HALL_OF_FAME_MAX_TEAMS; i++, savedTeams++)
         {
             if (savedTeams->mons[0].species == 0)
@@ -872,7 +872,7 @@ static void sub_8142A28(u8 taskID)
 
 static void sub_8142B04(u8 taskID)
 {
-    struct HallofFameMons* savedTeams = (struct HallofFameMons*)(&ewram[0x1E000]);
+    struct HallofFameMons* savedTeams = eHallOfFameMons2;
     struct HallofFameMon* currMon;
     u16 i;
     u8* stringPtr;
@@ -937,7 +937,7 @@ static void sub_8142B04(u8 taskID)
 
 static void sub_8142CC8(u8 taskID)
 {
-    struct HallofFameMons* savedTeams = (struct HallofFameMons*)(&ewram[0x1E000]);
+    struct HallofFameMons* savedTeams = eHallOfFameMons2;
     struct HallofFameMon* currMon;
     u16 i;
     u16 currMonID;
@@ -1025,7 +1025,7 @@ static void sub_8142F78(u8 taskID)
     struct HallofFameMons* fameMons;
 
     CpuSet(gPlttBufferFaded, gPlttBufferUnfaded, 0x200);
-    fameMons = (struct HallofFameMons*)(&ewram[0x1C000]);
+    fameMons = eHallOfFameMons1;
     fameMons->mons[0] = sDummyFameMon;
     sub_80C5E38(fameMons);
     gTasks[taskID].func = sub_8142FCC;
@@ -1258,7 +1258,7 @@ static void sub_81433E0(void)
         *((u16*)(VRAM + 0x3000) + i) = 2;
     }
 
-    offsetWrite4 = (u32)(&ewram[0]);
+    offsetWrite4 = ewram0_6;
     size4 = 0x4000;
     while (TRUE)
     {
diff --git a/src/scene/intro.c b/src/scene/intro.c
index af9b565a3..04173b86a 100644
--- a/src/scene/intro.c
+++ b/src/scene/intro.c
@@ -1207,6 +1207,7 @@ static void Task_IntroWaitToSetupPart3DoubleFight(u8 taskId)
         gTasks[taskId].func = Task_IntroLoadPart3Streaks;
 }
 
+// TODO: use ewram define instead
 extern u8 ewram[][32];
 
 static void Task_IntroLoadPart3Streaks(u8 taskId)