remove shared_syms

20 files changed, 278 insertions, 280 deletions

diff --git a/Makefile b/Makefile
index f471a1626..a42a06898 100644
--- a/Makefile
+++ b/Makefile
@@ -161,7 +161,7 @@ build/$1/ld_script.ld: ld_script.txt build/$1/sym_bss.ld build/$1/sym_common.ld
 	cd build/$1 && sed -f ../../ld_script.sed ../../ld_script.txt | sed "s#tools/#../../tools/#g" | sed "s#sound/#../../sound/#g" >ld_script.ld
 
 poke$1.elf: build/$1/ld_script.ld $$($1_OBJS)
-	cd build/$1 && $$(LD) -T ld_script.ld -T ../../shared_syms.txt -Map ../../poke$1.map -o ../../$$@ $$($1_OBJS_REL) ../../$$(LIBGCC)
+	cd build/$1 && $$(LD) -T ld_script.ld -Map ../../poke$1.map -o ../../$$@ $$($1_OBJS_REL) ../../$$(LIBGCC)
 
 poke$1.gba: %.gba: %.elf
 	$$(OBJCOPY) -O binary --gap-fill 0xFF --pad-to 0x9000000 $$< $$@
diff --git a/asmdiff.sh b/asmdiff.sh
index a4b465b6e..a4b465b6e 100644..100755
--- a/asmdiff.sh
+++ b/asmdiff.sh
diff --git a/include/ewram.h b/include/ewram.h
index b5acbc8ed..93fba80f8 100755
--- a/include/ewram.h
+++ b/include/ewram.h
@@ -1,227 +1,227 @@
 #ifndef GUARD_EWRAM_H
 #define GUARD_EWRAM_H
 
-extern u8 ewram[];
-#define ewram_addr 0x02000000 // used in ewram addr hacks
+extern u8 gSharedMem[];
+#define ewram_addr 0x02000000 // used in gSharedMem addr hacks
 
 // 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))
-#define ewramBerryPic                   (ewram + 0x0)
-#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 eSaveSection                    (struct SaveSection *)(ewram + 0x0)
-#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])
-#define ewram01000                      (*(struct Unk2001000 *)(ewram + 0x1000))
-#define ewramBerryPicTemp               (ewram + 0x1000)
-#define EWRAM_1000                      (*(struct Struct2001000 *)(ewram + 0x1000))
-#define gUnk20011fa                     (u8 *)(&ewram[0x11FA])
-#define gUnk2002694                     (u8 *)(&ewram[0x2694])
-#define gUnk20026A6                     (u8 *)(&ewram[0x26A6])
-#define gUnk20026e4                     (u8 *)(&ewram[0x26E4])
-#define ewram4000                       (ewram + 0x4000)
-#define gUnknown_02007000               (*(ewramStruct_02007000 *)(ewram + 0x7000))
-#define ARRAY_2007800                   ((struct EasyChatPair *)(ewram + 0x7800))
-#define ARRAY_2007900                   ((struct EasyChatPair *)(ewram + 0x7900))
-#define ewram_2008000                   (*(struct PlayerRecords *)(ewram + 0x08000))
-#define ewram8000                       (&ewram[0x8000])
-#define ewram8800                       (&ewram[0x8800])
-#define ewram9000                       (&ewram[0x9000])
+#define BATTLE_STRUCT                   ((struct BattleStruct *)     (gSharedMem + 0x0))
+#define ewram0_2                        (*(struct Struct2000000 *)(gSharedMem + 0x0))
+#define namingScreenData                (*(struct NamingScreenData *)(gSharedMem + 0x0))
+#define ewramBerryPic                   (gSharedMem + 0x0)
+#define ewram0_3                        (*(struct UnknownStruct3 *)(gSharedMem + 0x0))
+#define ewram0_4                        (*(struct Unk2000000 *)(gSharedMem + 0x0))
+#define ewram0_5                        (*(struct UnkStruct *)(gSharedMem + 0x0))
+#define eMatsudaDebugVar                (gSharedMem[0x0])
+#define eBrendanSprite                  (gSharedMem + 0x0)
+#define ewram0_6                        (u32)(&gSharedMem[0])
+#define ewram0_7                        (&gSharedMem[0])
+#define eSaveSection                    (struct SaveSection *)(gSharedMem + 0x0)
+#define ewram4                          (*(struct UnknownStruct8 *)(gSharedMem + 0x4))
+#define ewram520                        ((struct UnknownStruct7 *)(gSharedMem + 0x00520))
+#define eMaySprite                      (gSharedMem + 0x800)
+#define ewram888                        (gSharedMem + 0x888)
+#define ewramBlankMapName               (gSharedMem + 0xA48)
+#define ewramA6E                        (gSharedMem[0xA6E])
+#define ewram01000                      (*(struct Unk2001000 *)(gSharedMem + 0x1000))
+#define ewramBerryPicTemp               (gSharedMem + 0x1000)
+#define EWRAM_1000                      (*(struct Struct2001000 *)(gSharedMem + 0x1000))
+#define gUnk20011fa                     (u8 *)(&gSharedMem[0x11FA])
+#define gUnk2002694                     (u8 *)(&gSharedMem[0x2694])
+#define gUnk20026A6                     (u8 *)(&gSharedMem[0x26A6])
+#define gUnk20026e4                     (u8 *)(&gSharedMem[0x26E4])
+#define ewram4000                       (gSharedMem + 0x4000)
+#define gUnknown_02007000               (*(ewramStruct_02007000 *)(gSharedMem + 0x7000))
+#define ARRAY_2007800                   ((struct EasyChatPair *)(gSharedMem + 0x7800))
+#define ARRAY_2007900                   ((struct EasyChatPair *)(gSharedMem + 0x7900))
+#define ewram_2008000                   (*(struct PlayerRecords *)(gSharedMem + 0x08000))
+#define ewram8000                       (&gSharedMem[0x8000])
+#define ewram8800                       (&gSharedMem[0x8800])
+#define ewram9000                       (&gSharedMem[0x9000])
 #define ewram9000_hack                  (void *)(ewram_addr + 0x9000) // TODO: Fix this.
-#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 ewram15DE0                      ((*(struct ContestEntry*)(ewram + 0x15DE0)))
-#define ewram15E00                      ((*(struct Unk2015E00*)(ewram + 0x15E00)))
-#define ewram16000                      (ewram[0x16000])
-#define ewram16001                      (ewram[0x16001])
-#define ewram16002                      (ewram[0x16002])
-#define ewram16003                      (ewram[0x16003])
-#define ewram16004arr(i, bank)          (ewram[0x16004 + i + bank * 2])
-#define ewram1600C                      (ewram[0x1600C])
-#define ewram1600E                      (ewram[0x1600E])
-#define ewram16010arr(bank)             (ewram[0x16010 + bank])
-#define ewram1601B                      (ewram[0x1601B])
-#define eDynamicMoveType                (ewram[0x1601C])
-#define eDmgMultiplier                  (ewram[0x1601F])
-#define ewram16020                      ((u8 *)(ewram + 0x16020))
-#define ewram16020arr(i)                (ewram[0x16020 + i])
-#define ewram16054                      (ewram[0x16054])
-#define ewram16056                      (ewram[0x16056])
-#define ewram16058                      (ewram[0x16058])
-#define ewram16059                      (ewram[0x16059])
-#define ewram16060(bank)                (ewram[0x16060 + bank])
-#define BATTLE_PARTY_ID(bank)           (ewram[0x16064 + bank])
-#define ewram16064                      (&ewram[0x16064])
-#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)             (ewram[0x1606C + i + a * 3])
-#define ewram16078                      (ewram[0x16078])
-#define ewram16084                      (ewram[0x16084])
-#define ewram16086                      (ewram[0x16086])
-#define ewram16087                      (ewram[0x16087])
-#define ewram16088                      (ewram[0x16088])
-#define ewram16088_2                    (*(u8 *)(ewram + 0x16088))
-#define ewram16089                      (ewram[0x16089])
-#define ewram16089_2                    (*(u8 *)(ewram + 0x16089))
-#define ewram1608Carr(bank)             (ewram[0x1608C + bank])
-#define EWRAM_1609D                     (ewram[0x1609D])
-#define ewram160A1                      (ewram[0x160A1])
-#define ewram160A6                      (ewram[0x160A6])
-#define ewram160A8                      (ewram[0x160A8])
-#define ewram160A9                      (ewram[0x160A9])
-#define ewram160AA                      (ewram[0x160AA])
-#define ewram160AB                      (ewram[0x160AB])
-#define ewram160AC                      ((u8 *)(ewram + 0x160AC))
-#define ewram160ACarr(i)                (ewram[0x160AC + i])
-#define ewram160ACarr2(i, bank)         (ewram[0x160AC + i + bank * 2])
-#define ewram160BC                      ((u16 *)(ewram + 0x160BC))  // hp
-#define ewram160BCarr(bank)             (ewram[0x160BC + bank * 2])
-#define ewram160C0                      (ewram[0x160C0])
-#define ewram160C2_Flags                ((u16 *)(ewram + 0x160C2))
-#define ewram160C4_Callback             ((MainCallback *)(ewram + 0x160C4))
-#define ewram160C8                      (ewram[0x160C8])
-#define ewram160C8arr(bank)             (ewram[0x160C8 + (bank / 2)])
-#define ewram160C9                      (ewram[0x160C9])
-#define ewram160CB                      (ewram[0x160CB])
-#define ewram160CC                      ((u8 *)(ewram + 0x160CC))
-#define ewram160CCarr(i)                (ewram[0x160CC + i])
-#define USED_HELD_ITEM(bank)            ((((u16*)(&ewram[0x160CC + bank * 2]))))
-#define USED_HELD_ITEMS(bank)           (*(u16 *)&ewram[0x160CC + 2 * (bank)])
-#define ewram160D4(bank)                (ewram[0x160D4 + (bank / 2) * 2])
-#define ewram160DD                      (ewram[0x160DD])
-#define ewram160E0(i)                   (ewram[0x160E0 + i])
-#define ewram160E6                      (ewram[0x160E6])
-#define CHOICED_MOVE(bank)              (((u16*)(&ewram[0x160E8 + bank * 2])))
-#define ewram160E8                      ((u8 *)(ewram + 0x160E8))
-#define ewram160E8arr(i)                (ewram[0x160E8 + i])
-#define ewram160E8arr2(i, bank)         (ewram[0x160E8 + i + bank * 2])
-#define ewram160F0                      ((u8 *)(ewram + 0x160F0))
-#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])
-#define ewram16100arr2(i, bank)         (ewram[0x16100 + i + bank * 4])
-#define ewram16108                      ((u8 *)(ewram + 0x16108))
-#define ewram16108arr(i)                (ewram[0x16108 + i])
-#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 eSecretBaseRecord               ((struct SecretBaseRecord *)(ewram + 0x17000))
-#define ewram17002                      (&ewram[0x17002])
-#define eFlashFireArr                   (*(struct Struct2017100 *)(ewram + 0x17100))
-#define B_BATTLESCRIPTS_STACK           ((struct scriptsStack *)     (ewram + 0x17110))
-#define ewram17130                      (ewram[0x17130])
-#define B_FUNCTION_STACK                ((struct funcStack *)        (ewram + 0x17140))
-#define ewram17160                      (ewram[0x17160])
-#define ewram17800                      ((struct Struct2017800 *)    (ewram + 0x17800))
-#define EWRAM_17800                     ((struct UnknownStruct1 *)(ewram + 0x17800))
-#define eTransformStatuses              ((struct TransformStatus *)(ewram + 0x17800))
-#define ewram17810                      ((struct Struct2017810 *)    (ewram + 0x17810))
-#define EWRAM_17810                     ((struct UnknownStruct3 *)(ewram + 0x17810))
-#define ewram17840                      (*(struct Struct2017840 *)   (ewram + 0x17840))
-#define ewram17850                      ((struct UnknownStruct5 *)(ewram + 0x17850))
-#define ewram_2018000                   (*(struct PlayerRecords *)(ewram + 0x18000))
-#define EWRAM_18000                     ((u16 *)(ewram + 0x18000))
-#define ewram18000                      ((u16 *)(ewram + 0x18000))
-#define ewram18000_2                    (&ewram[0x18000])
-#define ewram18000_3                    *(struct Pokemon **)(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 ewram9800                       (&gSharedMem[0x9800])
+#define ewramA000                       (&gSharedMem[0xA000])
+#define ewramA800                       (&gSharedMem[0xA800])
+#define ewramB000                       (&gSharedMem[0xB000])
+#define ewramB800                       (&gSharedMem[0xB800])
+#define TRANSITION_STRUCT               (*(struct TransitionData *)   (gSharedMem + 0xC000))
+#define ewramC000                       (&gSharedMem[0xC000])
+#define ewramC03C                       (&gSharedMem[0xC03C])
+#define ewramC800                       (&gSharedMem[0xC800])
+#define ewramD000                       (&gSharedMem[0xD000])
+#define ewramD800                       (&gSharedMem[0xD800])
+#define ewramE000                       (&gSharedMem[0xE000])
+#define ewramE800                       (&gSharedMem[0xE800])
+#define ewramF000                       (&gSharedMem[0xF000])
+#define ewramF800                       (&gSharedMem[0xF800])
+#define ewram_2010000                   (*(struct TradeEwramStruct *)(gSharedMem + 0x10000))
+#define ewram10000                      (&gSharedMem[0x10000])
+#define ewram10800                      (&gSharedMem[0x10800])
+#define ewram11000                      (&gSharedMem[0x11000])
+#define ewram11800                      (&gSharedMem[0x11800])
+#define ewram13000                      (&gSharedMem[0x13000])
+#define EWRAM_14000                     ((u8 *)(gSharedMem + 0x14000))
+#define ewram14000                      (&gSharedMem[0x14000])
+#define ewram14000arr(i, data)          (gSharedMem[0x14000 + i + data])
+#define ewram14004arr(i, data)          (gSharedMem[0x14004 + i + data])
+#define ewram14008arr(i, data)          (gSharedMem[0x14008 + data + i])
+#define ewram14800                      (&gSharedMem[0x14800])
+#define EWRAM_14800                     ((u16 *)(gSharedMem + 0x14800))
+#define sEvoInfo                        ((*(struct EvoInfo*)(gSharedMem + 0x14800)))
+#define EWRAM_15000                     ((u8 *)(gSharedMem + 0x15000))
+#define ewram15000                      (&gSharedMem[0x15000])
+#define ewram15000arr(i, data)          (gSharedMem[0x15000 + data + i])
+#define ewram15800                      (&gSharedMem[0x15800])
+#define ewram15DDE                      (gSharedMem[0x15DDE])
+#define ewram15DDF                      (gSharedMem[0x15DDF])
+#define ewram15DE0                      ((*(struct ContestEntry*)(gSharedMem + 0x15DE0)))
+#define ewram15E00                      ((*(struct Unk2015E00*)(gSharedMem + 0x15E00)))
+#define ewram16000                      (gSharedMem[0x16000])
+#define ewram16001                      (gSharedMem[0x16001])
+#define ewram16002                      (gSharedMem[0x16002])
+#define ewram16003                      (gSharedMem[0x16003])
+#define ewram16004arr(i, bank)          (gSharedMem[0x16004 + i + bank * 2])
+#define ewram1600C                      (gSharedMem[0x1600C])
+#define ewram1600E                      (gSharedMem[0x1600E])
+#define ewram16010arr(bank)             (gSharedMem[0x16010 + bank])
+#define ewram1601B                      (gSharedMem[0x1601B])
+#define eDynamicMoveType                (gSharedMem[0x1601C])
+#define eDmgMultiplier                  (gSharedMem[0x1601F])
+#define ewram16020                      ((u8 *)(gSharedMem + 0x16020))
+#define ewram16020arr(i)                (gSharedMem[0x16020 + i])
+#define ewram16054                      (gSharedMem[0x16054])
+#define ewram16056                      (gSharedMem[0x16056])
+#define ewram16058                      (gSharedMem[0x16058])
+#define ewram16059                      (gSharedMem[0x16059])
+#define ewram16060(bank)                (gSharedMem[0x16060 + bank])
+#define BATTLE_PARTY_ID(bank)           (gSharedMem[0x16064 + bank])
+#define ewram16064                      (&gSharedMem[0x16064])
+#define ewram16064arr(bank)             (gSharedMem[0x16064 + bank])
+#define ewram16068arr(i)                (gSharedMem[0x16068 + i])
+#define UNK_201606C_ARRAY               (gSharedMem + 0x1606C) // lazy define but whatever.
+#define ewram1606Carr(i, a)             (gSharedMem[0x1606C + i + a * 3])
+#define ewram16078                      (gSharedMem[0x16078])
+#define ewram16084                      (gSharedMem[0x16084])
+#define ewram16086                      (gSharedMem[0x16086])
+#define ewram16087                      (gSharedMem[0x16087])
+#define ewram16088                      (gSharedMem[0x16088])
+#define ewram16088_2                    (*(u8 *)(gSharedMem + 0x16088))
+#define ewram16089                      (gSharedMem[0x16089])
+#define ewram16089_2                    (*(u8 *)(gSharedMem + 0x16089))
+#define ewram1608Carr(bank)             (gSharedMem[0x1608C + bank])
+#define EWRAM_1609D                     (gSharedMem[0x1609D])
+#define ewram160A1                      (gSharedMem[0x160A1])
+#define ewram160A6                      (gSharedMem[0x160A6])
+#define ewram160A8                      (gSharedMem[0x160A8])
+#define ewram160A9                      (gSharedMem[0x160A9])
+#define ewram160AA                      (gSharedMem[0x160AA])
+#define ewram160AB                      (gSharedMem[0x160AB])
+#define ewram160AC                      ((u8 *)(gSharedMem + 0x160AC))
+#define ewram160ACarr(i)                (gSharedMem[0x160AC + i])
+#define ewram160ACarr2(i, bank)         (gSharedMem[0x160AC + i + bank * 2])
+#define ewram160BC                      ((u16 *)(gSharedMem + 0x160BC))  // hp
+#define ewram160BCarr(bank)             (gSharedMem[0x160BC + bank * 2])
+#define ewram160C0                      (gSharedMem[0x160C0])
+#define ewram160C2_Flags                ((u16 *)(gSharedMem + 0x160C2))
+#define ewram160C4_Callback             ((MainCallback *)(gSharedMem + 0x160C4))
+#define ewram160C8                      (gSharedMem[0x160C8])
+#define ewram160C8arr(bank)             (gSharedMem[0x160C8 + (bank / 2)])
+#define ewram160C9                      (gSharedMem[0x160C9])
+#define ewram160CB                      (gSharedMem[0x160CB])
+#define ewram160CC                      ((u8 *)(gSharedMem + 0x160CC))
+#define ewram160CCarr(i)                (gSharedMem[0x160CC + i])
+#define USED_HELD_ITEM(bank)            ((((u16*)(&gSharedMem[0x160CC + bank * 2]))))
+#define USED_HELD_ITEMS(bank)           (*(u16 *)&gSharedMem[0x160CC + 2 * (bank)])
+#define ewram160D4(bank)                (gSharedMem[0x160D4 + (bank / 2) * 2])
+#define ewram160DD                      (gSharedMem[0x160DD])
+#define ewram160E0(i)                   (gSharedMem[0x160E0 + i])
+#define ewram160E6                      (gSharedMem[0x160E6])
+#define CHOICED_MOVE(bank)              (((u16*)(&gSharedMem[0x160E8 + bank * 2])))
+#define ewram160E8                      ((u8 *)(gSharedMem + 0x160E8))
+#define ewram160E8arr(i)                (gSharedMem[0x160E8 + i])
+#define ewram160E8arr2(i, bank)         (gSharedMem[0x160E8 + i + bank * 2])
+#define ewram160F0                      ((u8 *)(gSharedMem + 0x160F0))
+#define ewram160F0arr(i)                (gSharedMem[0x160F0 + i])
+#define ewram160F8                      (gSharedMem[0x160F8])
+#define ewram160F9                      (gSharedMem[0x160F9])
+#define eStatHp                         (gSharedMem[0x160FA])
+#define ewram160FB                      (gSharedMem[0x160FB])
+#define ewram16100                      ((u8 *)(gSharedMem + 0x16100))
+#define ewram16100arr(i)                (gSharedMem[0x16100 + i])
+#define ewram16100arr2(i, bank)         (gSharedMem[0x16100 + i + bank * 4])
+#define ewram16108                      ((u8 *)(gSharedMem + 0x16108))
+#define ewram16108arr(i)                (gSharedMem[0x16108 + i])
+#define ewram16110                      (gSharedMem[0x16110])
+#define ewram16111                      (gSharedMem[0x16111])
+#define ewram16113                      (gSharedMem[0x16113])
+#define ewram16400                      (gSharedMem + 0x16400)
+#define AI_THINKING_STRUCT              ((struct AI_ThinkingStruct *)(gSharedMem + 0x16800))
+#define UNK_2016A00_STRUCT              ((struct UnkBattleStruct1 *) (gSharedMem + 0x16A00))
+#define AI_STACK                        ((struct AI_Stack *)         (gSharedMem + 0x16C00))
+#define AI_ARRAY_160CC(i)               (gSharedMem[0x160CC + i * 2])
+#define eLearnMoveStruct                (struct LearnMoveStruct *)(gSharedMem + 0x17000)
+#define eSecretBaseRecord               ((struct SecretBaseRecord *)(gSharedMem + 0x17000))
+#define ewram17002                      (&gSharedMem[0x17002])
+#define eFlashFireArr                   (*(struct Struct2017100 *)(gSharedMem + 0x17100))
+#define B_BATTLESCRIPTS_STACK           ((struct scriptsStack *)     (gSharedMem + 0x17110))
+#define ewram17130                      (gSharedMem[0x17130])
+#define B_FUNCTION_STACK                ((struct funcStack *)        (gSharedMem + 0x17140))
+#define ewram17160                      (gSharedMem[0x17160])
+#define ewram17800                      ((struct Struct2017800 *)    (gSharedMem + 0x17800))
+#define EWRAM_17800                     ((struct UnknownStruct1 *)(gSharedMem + 0x17800))
+#define eTransformStatuses              ((struct TransformStatus *)(gSharedMem + 0x17800))
+#define ewram17810                      ((struct Struct2017810 *)    (gSharedMem + 0x17810))
+#define EWRAM_17810                     ((struct UnknownStruct3 *)(gSharedMem + 0x17810))
+#define ewram17840                      (*(struct Struct2017840 *)   (gSharedMem + 0x17840))
+#define ewram17850                      ((struct UnknownStruct5 *)(gSharedMem + 0x17850))
+#define ewram_2018000                   (*(struct PlayerRecords *)(gSharedMem + 0x18000))
+#define EWRAM_18000                     ((u16 *)(gSharedMem + 0x18000))
+#define ewram18000                      ((u16 *)(gSharedMem + 0x18000))
+#define ewram18000_2                    (&gSharedMem[0x18000])
+#define ewram18000_3                    *(struct Pokemon **)(gSharedMem + 0x18000)
+#define eBerryBlenderData               (struct BerryBlenderData*)(&gSharedMem[0x18000])
+#define eEggHatchData                   (struct EggHatchData*)(&gSharedMem[0x18000])
+#define UNK_2018000_STRUCT              (*(struct UnknownStruct2018000 *)(gSharedMem + 0x18000))
+#define ewram18300                      ((u16 *)(gSharedMem + 0x18300))
+#define ewram18800                      (&gSharedMem[0x18800])
+#define ewram19000                      (&gSharedMem[0x19000])
+#define EWRAM_19348                     (*(u16 *)(gSharedMem + 0x19348))
+#define ewram19348                      (*(struct Struct2019348 *)(gSharedMem + 0x19348))
+#define ewram19800                      (&gSharedMem[0x19800])
+#define ewram1B000                      (*(struct Unk201B000 *)(gSharedMem + 0x1B000))
+#define ewram1B000_alt                  (*(struct Struct201B000 *)(gSharedMem + 0x1B000))
 #define EWRAM_1B000                     ewram1B000_alt // FIXME
-#define EWRAM_1B000_2                   (*(struct Struct201B000 *)(ewram + 0x1B000))
-#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 EWRAM_1C800                     (*(struct Unk201C800 *)(ewram + 0x1C800))
-#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 eHallOfFame                     (struct HallOfFame *)(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))
-#define ewramSavedPokeballsPocket       ((struct ItemSlot *)(ewram + 0x1F000))  // saved Pokeballs pocket (for Wally battle)
-#define HALL_OF_FAME_SHEET_2            ((u8 *)(ewram + 0x1F000))
-#define EWRAM_1F800                     ((u16 *)(ewram + 0x1F800))
-#define ewram1FE00                      (*(struct Unk201FE00 *)(ewram + 0x1FE00))
-#define eMailboxInfo                    (*(struct MailboxStruct *)(ewram + 0x1FE00))
-#define eCutGrassSpriteArray            (ewram + 0x1FFF0) // 8 sprite IDs
-#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])
+#define EWRAM_1B000_2                   (*(struct Struct201B000 *)(gSharedMem + 0x1B000))
+#define EWRAM_1C000                     (*(struct Struct201C000 *)(gSharedMem + 0x1C000))
+#define ewram1C000                      (*(struct Unk201C000 *)(gSharedMem + 0x1C000))
+#define ewram1c000                      (*(struct Unk201C000 *)(gSharedMem + 0x1C000)) // FIXME, names too similar
+#define eHallOfFameMons1                (struct HallofFameMons*)(&gSharedMem[0x1C000])
+#define EWRAM_1C800                     (*(struct Unk201C800 *)(gSharedMem + 0x1C800))
+#define ewram1D000                      ((struct Pokemon *)(gSharedMem + 0x1D000))
+#define ewram1D000_2                    ((u16 *)(gSharedMem + 0x1D000))
+#define ewram1D400                      ((u16 *)(gSharedMem + 0x1D400))
+#define ewramSavedItemsPocket           ((struct ItemSlot *)(gSharedMem + 0x1E000))  // saved items pocket (for Wally battle)
+#define ewram1E000(i)                   (gSharedMem[0x1E000 + i])
+#define eHallOfFameMons2                (struct HallofFameMons*)(&gSharedMem[0x1E000])
+#define eHallOfFame                     (struct HallOfFame *)(gSharedMem + 0x1E000)
+#define HALL_OF_FAME_SHEET_0            ((u8 *)(gSharedMem + 0x1E000))
+#define HALL_OF_FAME_SHEET_1            ((u8 *)(gSharedMem + 0x1E800))
+#define ewram_1f000                     (*(struct DecoPCPointers *)(gSharedMem + 0x1f000))
+#define ewramSavedPokeballsPocket       ((struct ItemSlot *)(gSharedMem + 0x1F000))  // saved Pokeballs pocket (for Wally battle)
+#define HALL_OF_FAME_SHEET_2            ((u8 *)(gSharedMem + 0x1F000))
+#define EWRAM_1F800                     ((u16 *)(gSharedMem + 0x1F800))
+#define ewram1FE00                      (*(struct Unk201FE00 *)(gSharedMem + 0x1FE00))
+#define eMailboxInfo                    (*(struct MailboxStruct *)(gSharedMem + 0x1FE00))
+#define eCutGrassSpriteArray            (gSharedMem + 0x1FFF0) // 8 sprite IDs
+#define ewram1FFFC                      (gSharedMem[0x1FFFC])
+#define ewram1FFFD                      (gSharedMem[0x1FFFD])
+#define gHelperState                    (gSharedMem[0x1FFFE])
+#define ewram1FFFE                      (gSharedMem[0x1FFFE])
+#define gReshowState                    (gSharedMem[0x1FFFF])
+#define ewramBagSetupStep               (gSharedMem[0x1FFFF])
+#define ewram1FFFF                      (gSharedMem[0x1FFFF])
 
 #endif
diff --git a/ld_script.txt b/ld_script.txt
index 52006a040..e208d5749 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -9,8 +9,6 @@ SECTIONS {
     ewram (NOLOAD) :
     ALIGN(4)
     {
-        . = 0x20000;
-
 <EWRAM>
 
         . = 0x40000;
diff --git a/shared_syms.txt b/shared_syms.txt
deleted file mode 100644
index 1422fe418..000000000
--- a/shared_syms.txt
+++ /dev/null
@@ -1 +0,0 @@
-ewram = 0x2000000;
\ No newline at end of file
diff --git a/src/battle/battle_2.c b/src/battle/battle_2.c
index 4b75818b6..14afc1537 100644
--- a/src/battle/battle_2.c
+++ b/src/battle/battle_2.c
@@ -510,7 +510,7 @@ void sub_800F02C(void)
         if (gUnknown_02023A00[i].language != 1)
             PadNameString(nickname, 0);
     }
-    memcpy(ewram, gUnknown_02023A00, 0x60);
+    memcpy(gSharedMem, gUnknown_02023A00, 0x60);
 }
 
 void sub_800F104(void)
@@ -534,7 +534,7 @@ void sub_800F104(void)
         if (gReceivedRemoteLinkPlayers != 0 && sub_8007ECC())
         {
             sub_800F02C();
-            SendBlock(bitmask_all_link_players_but_self(), ewram, 0x60);
+            SendBlock(bitmask_all_link_players_but_self(), gSharedMem, 0x60);
             gBattleCommunication[0]++;
         }
         break;
@@ -597,7 +597,7 @@ void sub_800F298(void)
             BATTLE_STRUCT->unk1 = 1;
             sub_800E9EC();
             sub_800EAAC();
-            SendBlock(bitmask_all_link_players_but_self(), ewram, 0x20);
+            SendBlock(bitmask_all_link_players_but_self(), gSharedMem, 0x20);
             gBattleCommunication[0]++;
         }
         break;
@@ -863,7 +863,7 @@ void sub_800F828(struct Sprite *sprite)
 
 void sub_800F838(struct Sprite *sprite)
 {
-    u16 *arr = (u16 *)ewram;
+    u16 *arr = (u16 *)gSharedMem;
 
     switch (sprite->data0)
     {
diff --git a/src/battle/battle_7.c b/src/battle/battle_7.c
index 2a335ea63..ceac8ff24 100644
--- a/src/battle/battle_7.c
+++ b/src/battle/battle_7.c
@@ -293,9 +293,9 @@ void BattleLoadOpponentMonSprite(struct Pokemon *pkmn, u8 b)
         lzPaletteData = GetMonSpritePal(pkmn);
     else
         lzPaletteData = GetMonSpritePalFromOtIdPersonality(species, otId, personalityValue);
-    LZDecompressWram(lzPaletteData, ewram);
-    LoadPalette(ewram, paletteOffset, 0x20);
-    LoadPalette(ewram, 0x80 + b * 16, 0x20);
+    LZDecompressWram(lzPaletteData, gSharedMem);
+    LoadPalette(gSharedMem, paletteOffset, 0x20);
+    LoadPalette(gSharedMem, 0x80 + b * 16, 0x20);
     if (species == SPECIES_CASTFORM)
     {
         paletteOffset = 0x100 + b * 16;
@@ -345,9 +345,9 @@ void BattleLoadPlayerMonSprite(struct Pokemon *pkmn, u8 b)
         lzPaletteData = GetMonSpritePal(pkmn);
     else
         lzPaletteData = GetMonSpritePalFromOtIdPersonality(species, otId, personalityValue);
-    LZDecompressWram(lzPaletteData, ewram);
-    LoadPalette(ewram, paletteOffset, 0x20);
-    LoadPalette(ewram, 0x80 + b * 16, 0x20);
+    LZDecompressWram(lzPaletteData, gSharedMem);
+    LoadPalette(gSharedMem, paletteOffset, 0x20);
+    LoadPalette(gSharedMem, 0x80 + b * 16, 0x20);
     if (species == SPECIES_CASTFORM)
     {
         paletteOffset = 0x100 + b * 16;
@@ -680,8 +680,8 @@ void sub_8031FC4(u8 a, u8 b, bool8 c)
         DmaCopy32(3, src, dst, 0x800);
         paletteOffset = 0x100 + a * 16;
         lzPaletteData = GetMonSpritePalFromOtIdPersonality(species, otId, personalityValue);
-        LZDecompressWram(lzPaletteData, ewram);
-        LoadPalette(ewram, paletteOffset, 32);
+        LZDecompressWram(lzPaletteData, gSharedMem);
+        LoadPalette(gSharedMem, paletteOffset, 32);
         if (species == SPECIES_CASTFORM)
         {
             u16 *paletteSrc = (u16 *)ewram16400; // TODO: avoid casting?
diff --git a/src/debug/matsuda_debug_menu.c b/src/debug/matsuda_debug_menu.c
index ab96ada23..3378e4e0a 100644
--- a/src/debug/matsuda_debug_menu.c
+++ b/src/debug/matsuda_debug_menu.c
@@ -414,14 +414,14 @@ void sub_80AA280(u8 var) // no?
     u8 i;
 
     FillWindowRect_DefaultPalette(&gMenuWindow, 0, 0, 0, 0x1E, 3);
-    StringCopy(ewram, gMatsudaDebugMenu_StartText);
-    StringAppend(ewram, &gUnknown_0203857D[var][0]);
+    StringCopy(gSharedMem, gMatsudaDebugMenu_StartText);
+    StringAppend(gSharedMem, &gUnknown_0203857D[var][0]);
 
     for (i = 0; i < 4; i++)
     {
         if (var == i)
         {
-            sub_8003460(&gMenuWindow, ewram, (10 * i + 2), gUnknown_083C926E[i][0], gUnknown_083C926E[i][1]);
+            sub_8003460(&gMenuWindow, gSharedMem, (10 * i + 2), gUnknown_083C926E[i][0], gUnknown_083C926E[i][1]);
         }
         else
         {
@@ -433,38 +433,38 @@ void sub_80AA280(u8 var) // no?
 
 static void sub_80AA340(u8 var)
 {
-    ConvertIntToDecimalStringN(ewram, gContestMons[var].cool, STR_CONV_MODE_RIGHT_ALIGN, 3);
-    sub_8003460(&gMenuWindow, ewram, 0x66, gUnknown_083C9282[0], gUnknown_083C9282[1]);
+    ConvertIntToDecimalStringN(gSharedMem, gContestMons[var].cool, STR_CONV_MODE_RIGHT_ALIGN, 3);
+    sub_8003460(&gMenuWindow, gSharedMem, 0x66, gUnknown_083C9282[0], gUnknown_083C9282[1]);
 }
 
 static void sub_80AA388(u8 var)
 {
-    ConvertIntToDecimalStringN(ewram, gContestMons[var].cute, STR_CONV_MODE_RIGHT_ALIGN, 3);
-    sub_8003460(&gMenuWindow, ewram, 0x6C, gUnknown_083C9282[2], gUnknown_083C9282[3]);
+    ConvertIntToDecimalStringN(gSharedMem, gContestMons[var].cute, STR_CONV_MODE_RIGHT_ALIGN, 3);
+    sub_8003460(&gMenuWindow, gSharedMem, 0x6C, gUnknown_083C9282[2], gUnknown_083C9282[3]);
 }
 
 static void sub_80AA3D0(u8 var)
 {
-    ConvertIntToDecimalStringN(ewram, gContestMons[var].beauty, STR_CONV_MODE_RIGHT_ALIGN, 3);
-    sub_8003460(&gMenuWindow, ewram, 0x72, gUnknown_083C9282[4], gUnknown_083C9282[5]);
+    ConvertIntToDecimalStringN(gSharedMem, gContestMons[var].beauty, STR_CONV_MODE_RIGHT_ALIGN, 3);
+    sub_8003460(&gMenuWindow, gSharedMem, 0x72, gUnknown_083C9282[4], gUnknown_083C9282[5]);
 }
 
 static void sub_80AA418(u8 var)
 {
-    ConvertIntToDecimalStringN(ewram, gContestMons[var].smart, STR_CONV_MODE_RIGHT_ALIGN, 3);
-    sub_8003460(&gMenuWindow, ewram, 0x78, gUnknown_083C9282[6], gUnknown_083C9282[7]);
+    ConvertIntToDecimalStringN(gSharedMem, gContestMons[var].smart, STR_CONV_MODE_RIGHT_ALIGN, 3);
+    sub_8003460(&gMenuWindow, gSharedMem, 0x78, gUnknown_083C9282[6], gUnknown_083C9282[7]);
 }
 
 static void sub_80AA460(u8 var)
 {
-    ConvertIntToDecimalStringN(ewram, gContestMons[var].tough, STR_CONV_MODE_RIGHT_ALIGN, 3);
-    sub_8003460(&gMenuWindow, ewram, 0x7E, gUnknown_083C9282[8], gUnknown_083C9282[9]);
+    ConvertIntToDecimalStringN(gSharedMem, gContestMons[var].tough, STR_CONV_MODE_RIGHT_ALIGN, 3);
+    sub_8003460(&gMenuWindow, gSharedMem, 0x7E, gUnknown_083C9282[8], gUnknown_083C9282[9]);
 }
 
 static void sub_80AA4A8(u8 var)
 {
-    ConvertIntToDecimalStringN(ewram, gContestMons[var].sheen, STR_CONV_MODE_RIGHT_ALIGN, 3);
-    sub_8003460(&gMenuWindow, ewram, 0x84, gUnknown_083C9282[10], gUnknown_083C9282[11]);
+    ConvertIntToDecimalStringN(gSharedMem, gContestMons[var].sheen, STR_CONV_MODE_RIGHT_ALIGN, 3);
+    sub_8003460(&gMenuWindow, gSharedMem, 0x84, gUnknown_083C9282[10], gUnknown_083C9282[11]);
 }
 
 static void sub_80AA4F0(u8 var1, u8 var2)
@@ -489,8 +489,8 @@ static void sub_80AA614(u8 var1, u8 var2)
 {
     u16 var = sub_80AE770(var1, var2);
 
-    ConvertIntToDecimalStringN(ewram, var, STR_CONV_MODE_RIGHT_ALIGN, 3);
-    sub_8003460(&gMenuWindow, ewram, 0xE2, 3, 0xC);
+    ConvertIntToDecimalStringN(gSharedMem, var, STR_CONV_MODE_RIGHT_ALIGN, 3);
+    sub_8003460(&gMenuWindow, gSharedMem, 0xE2, 3, 0xC);
 }
 
 void sub_80AA658(u8 var)
diff --git a/src/engine/link.c b/src/engine/link.c
index c526baec7..002d397d2 100644
--- a/src/engine/link.c
+++ b/src/engine/link.c
@@ -506,7 +506,7 @@ static void ProcessRecvCmds(u8 unusedParam)
         case 0x8888:
             if (sBlockRecv[i].size > BLOCK_BUFFER_SIZE)
             {
-                u16 *buffer = (u16 *)ewram;
+                u16 *buffer = (u16 *)gSharedMem;
                 u16 j;
                 for (j = 0; j < CMD_LENGTH - 1; j++)
                     buffer[(sBlockRecv[i].pos / 2) + j] = gRecvCmds[j + 1][i];
diff --git a/src/engine/main.c b/src/engine/main.c
index d7c11b6c8..ea381cb31 100644
--- a/src/engine/main.c
+++ b/src/engine/main.c
@@ -70,6 +70,7 @@ bool8 gLinkVSyncDisabled;
 u32 IntrMain_Buffer[0x200];
 u8 gPcmDmaCounter;
 
+EWRAM_DATA u8 gSharedMem[0x20000] = {0};
 EWRAM_DATA void (**gFlashTimerIntrFunc)(void) = NULL;
 
 static void UpdateLinkAndCallCallbacks(void);
diff --git a/src/engine/mystery_event_menu.c b/src/engine/mystery_event_menu.c
index 38912be86..a472eea3b 100644
--- a/src/engine/mystery_event_menu.c
+++ b/src/engine/mystery_event_menu.c
@@ -286,8 +286,8 @@ static void CB2_MysteryEventMenu(void)
     case 11:
         if (gReceivedRemoteLinkPlayers)
             break;
-        unkVal = RunMysteryEventScript(ewram);
-        CpuFill32(0, ewram, 0x7D4);
+        unkVal = RunMysteryEventScript(gSharedMem);
+        CpuFill32(0, gSharedMem, 0x7D4);
         if (!GetEventLoadMessage(gStringVar4, unkVal))
             TrySavingData(NORMAL_SAVE);
         gMain.state++;
diff --git a/src/engine/save_failed_screen.c b/src/engine/save_failed_screen.c
index 06505c0c2..ba2d46546 100644
--- a/src/engine/save_failed_screen.c
+++ b/src/engine/save_failed_screen.c
@@ -266,7 +266,7 @@ static void VBlankCB_UpdateClockGraphics(void)
 
 static bool8 VerifySectorWipe(u16 sector)
 {
-    u32 *ptr = (u32 *)&ewram;
+    u32 *ptr = (u32 *)&gSharedMem;
     u16 i;
 
     ReadFlash(sector, 0, ptr, 4096);
diff --git a/src/engine/trade.c b/src/engine/trade.c
index 63571ecac..7477b05ac 100644
--- a/src/engine/trade.c
+++ b/src/engine/trade.c
@@ -4000,7 +4000,7 @@ static void sub_804B2D0(u8 whichParty, u8 a1)
         case 0:
             species = GetMonData(pokemon, MON_DATA_SPECIES2);
             personality = GetMonData(pokemon, MON_DATA_PERSONALITY);
-            HandleLoadSpecialPokePic(&gMonFrontPicTable[species], gMonFrontPicCoords[species].coords, gMonFrontPicCoords[species].y_offset, (u32)ewram, gUnknown_081FAF4C[whichParty * 2 + 1], species, personality);
+            HandleLoadSpecialPokePic(&gMonFrontPicTable[species], gMonFrontPicCoords[species].coords, gMonFrontPicCoords[species].y_offset, (u32)gSharedMem, gUnknown_081FAF4C[whichParty * 2 + 1], species, personality);
             LoadCompressedObjectPalette(GetMonSpritePalStruct(pokemon));
             gUnknown_03004828->tradeSpecies[whichParty] = species;
             break;
@@ -4727,12 +4727,12 @@ static void sub_804BBE8(u8 a0)
             gUnknown_03004828->bg1hofs = 0;
             REG_BG1CNT = BGCNT_PRIORITY(2) | BGCNT_CHARBASE(0) | BGCNT_SCREENBASE(5);
             LZDecompressVram(gUnknown_08D00000, BG_CHAR_ADDR(0));
-            CpuCopy16(gUnknown_08D00524, buffer = (u16 *)ewram, 0x1000);
+            CpuCopy16(gUnknown_08D00524, buffer = (u16 *)gSharedMem, 0x1000);
             LoadCompressedPalette(gUnknown_08D004E0, 0x70, 0x20);
             FillPalette(0, 0, 2);
             for (i = 0; i < 0x280; i ++)
                 buffer[i] |= 0x7000;
-            DmaCopy16Defvars(3, ewram, BG_SCREEN_ADDR(5), 0x500);
+            DmaCopy16Defvars(3, gSharedMem, BG_SCREEN_ADDR(5), 0x500);
             MenuZeroFillWindowRect(2, 15, 27, 18);
             break;
         case 6:
@@ -5704,8 +5704,8 @@ void sub_804E22C(void)
     const u16 *src;
     u16 *dest;
     LZDecompressVram(gUnknown_08D00000, (void *)VRAM);
-    CpuCopy16(gUnknown_08D00524, ewram, 0x1000);
-    src = (const u16 *)ewram;
+    CpuCopy16(gUnknown_08D00524, gSharedMem, 0x1000);
+    src = (const u16 *)gSharedMem;
     dest = BG_SCREEN_ADDR(5);
     DmaCopy16(3, src, dest, 0x500)
     LoadCompressedPalette(gUnknown_08D004E0, 0, 32);
diff --git a/src/engine/trainer_card.c b/src/engine/trainer_card.c
index ef960c162..025d19ffc 100644
--- a/src/engine/trainer_card.c
+++ b/src/engine/trainer_card.c
@@ -68,7 +68,7 @@ extern const u16 gUnknown_083B5F8C[][4];
 
 const u8 gBadgesTiles[] = INCBIN_U8("graphics/trainer_card/badges.4bpp");
 // XXX: what is this?
-u8 *const ewram_ = ewram;
+u8 *const ewram_ = gSharedMem;
 
 bool8 sub_8093864(struct Task *);
 bool8 sub_80938A8(struct Task *);
diff --git a/src/field/berry_tag_screen.c b/src/field/berry_tag_screen.c
index 8241fe657..55405138d 100644
--- a/src/field/berry_tag_screen.c
+++ b/src/field/berry_tag_screen.c
@@ -28,7 +28,7 @@ struct Struct2000000
     /*0x1FFFF*/ u8 var_1FFFF;
 };
 
-extern struct Struct2000000 ewram;
+extern struct Struct2000000 gSharedMem;
 extern u16 gUnknown_030041B4;
 
 static EWRAM_DATA u8 gUnknown_0203932C = 0;
@@ -119,13 +119,13 @@ static bool8 sub_8146058(void)
     case 5:
         if (!MultistepInitMenuWindowContinue())
             break;
-        ewram.var_1FFFF = 0;
+        gSharedMem.var_1FFFF = 0;
         gMain.state += 1;
         break;
     case 6:
         if (!sub_81462B8())
             break;
-        ewram.var_1FFFF = 0;
+        gSharedMem.var_1FFFF = 0;
         gMain.state += 1;
         break;
     case 7:
@@ -191,19 +191,19 @@ bool8 sub_81462B8(void)
     u16 i;
     void *addr;
 
-    switch (ewram.var_1FFFF)
+    switch (gSharedMem.var_1FFFF)
     {
     case 0:
         LZDecompressVram(gBerryCheck_Gfx, (void *)VRAM);
-        ewram.var_1FFFF += 1;
+        gSharedMem.var_1FFFF += 1;
         break;
     case 1:
         LZDecompressVram(gUnknown_08E788E4, (void *)VRAM + 0x2800);
-        ewram.var_1FFFF += 1;
+        gSharedMem.var_1FFFF += 1;
         break;
     case 2:
         LZDecompressVram(gUnknown_08E78A84, (void *)VRAM + 0x3000);
-        ewram.var_1FFFF += 1;
+        gSharedMem.var_1FFFF += 1;
         break;
     case 3:
         for (i = 0; i < 0x400; i++)
@@ -215,19 +215,19 @@ bool8 sub_81462B8(void)
         }
         addr = (void *)(VRAM + 0x3800);
         DmaCopy16(3, gBGTilemapBuffers[2], addr, 0x800);
-        ewram.var_1FFFF += 1;
+        gSharedMem.var_1FFFF += 1;
         break;
     case 4:
         LoadCompressedPalette(gBerryCheck_Pal, 0, 96 * 2);
-        ewram.var_1FFFF += 1;
+        gSharedMem.var_1FFFF += 1;
         break;
     case 5:
         LoadCompressedObjectPic(&gUnknown_083C1F74);
-        ewram.var_1FFFF += 1;
+        gSharedMem.var_1FFFF += 1;
         break;
     case 6:
         LoadCompressedObjectPalette(&gUnknown_083C1F7C);
-        ewram.var_1FFFF = 0;
+        gSharedMem.var_1FFFF = 0;
         return TRUE;
     }
 
diff --git a/src/field/decoration.c b/src/field/decoration.c
index 924c94b59..bdeaaf91d 100644
--- a/src/field/decoration.c
+++ b/src/field/decoration.c
@@ -1556,7 +1556,7 @@ const struct SpriteTemplate gSpriteTemplate_83ECA88 = {
 
 const struct YesNoFuncTable gUnknown_083ECAA0 = {.yesFunc = sub_8101848, .noFunc = sub_80FED3C};
 
-u8 *const unref_label_083ECAA8[] = {ewram};
+u8 *const unref_label_083ECAA8[] = {gSharedMem};
 
 // text
 
diff --git a/src/field/region_map.c b/src/field/region_map.c
index b5a3de563..d643c373d 100644
--- a/src/field/region_map.c
+++ b/src/field/region_map.c
@@ -1426,7 +1426,7 @@ static const struct UnknownStruct4 sUnknown_083E79C0[1] =
 };
 
 // XXX: what is this?
-static u8 *const ewram_ = ewram;
+static u8 *const ewram_ = gSharedMem;
 
 static const struct SpritePalette sFlyTargetIconSpritePalette = {sFlyTargetIcons_Pal, 2};
 
diff --git a/src/field/slot_machine.c b/src/field/slot_machine.c
index 4d97ccb51..d6b20feaa 100644
--- a/src/field/slot_machine.c
+++ b/src/field/slot_machine.c
@@ -15,7 +15,7 @@ struct UnkStruct1 {
     /*0x02*/ s16 unk02;
 };
 
-extern struct UnkStruct2000000 ewram;
+extern struct UnkStruct2000000 gSharedMem;
 
 extern struct UnkStruct1 *gUnknown_083ED048[];
 extern const u16 gPalette_83EDE24[];
@@ -40,7 +40,7 @@ void sub_8104CAC(u8 arg0) {
 
     sub_8104DA4();
 
-    task = &gTasks[ewram.unk3D];
+    task = &gTasks[gSharedMem.unk3D];
     task->data[1] = arg0;
 
     i = 0;
diff --git a/src/scene/berry_blender.c b/src/scene/berry_blender.c
index b5d36ad1e..398f62833 100644
--- a/src/scene/berry_blender.c
+++ b/src/scene/berry_blender.c
@@ -3710,7 +3710,7 @@ static void sub_80527BC(void)
         gUnknown_020297E0 = 0;
         gUnknown_020297DC = 2;
         for (i = 0; i < 200; i++)
-            ewram[i] = 0;
+            gSharedMem[i] = 0;
         gUnknown_020297E8 = 0;
     }
     for (i = 0; i < 100; i++)
@@ -3719,7 +3719,7 @@ static void sub_80527BC(void)
             gUnknown_020297E0++;
         else
         {
-            u16* ewramPtr = ((u16*)(ewram));
+            u16* ewramPtr = ((u16*)(gSharedMem));
             ewramPtr[gUnknown_020297E4] = gUnknown_020297E0;
             gUnknown_020297E4++;
             gUnknown_020297E0 = 0;
diff --git a/src/scene/intro.c b/src/scene/intro.c
index 04173b86a..c4bb1f9ea 100644
--- a/src/scene/intro.c
+++ b/src/scene/intro.c
@@ -1208,7 +1208,7 @@ static void Task_IntroWaitToSetupPart3DoubleFight(u8 taskId)
 }
 
 // TODO: use ewram define instead
-extern u8 ewram[][32];
+extern u8 gSharedMem[][32];
 
 static void Task_IntroLoadPart3Streaks(u8 taskId)
 {
@@ -1218,12 +1218,12 @@ static void Task_IntroLoadPart3Streaks(u8 taskId)
     intro_reset_and_hide_bgs();
     for (i = 0; i < 32; i++)
     {
-        ewram[0][i] = 0;
-        ewram[1][i] = 17;
-        ewram[2][i] = 34;
+        gSharedMem[0][i] = 0;
+        gSharedMem[1][i] = 17;
+        gSharedMem[2][i] = 34;
     }
     vram = (void *)VRAM;
-    DmaCopy16(3, ewram, vram, 0x60);
+    DmaCopy16(3, gSharedMem, vram, 0x60);
     for (i = 0; i < 0x280; i++)
         ((u16 *)(VRAM + 0x3000))[i] = 0xF001;
     for (i = 0; i < 0x80; i++)