link through TestBlockTransfer + bss, ewram

asm/link_rfu_2.s

@@ -71,7 +71,7 @@ _080F863E:
 	adds r0, r4, 0
 	bl sub_80FC4D4
 	strh r5, [r7]
-	ldr r1, _080F86AC @ =gUnknown_3003F50
+	ldr r1, _080F86AC @ =gSendCmd
 	ldr r2, _080F86B0 @ =0x01000008
 	adds r0, r7, 0
 	bl CpuSet
@@ -97,7 +97,7 @@ _080F869C: .4byte gUnknown_3005450
 _080F86A0: .4byte 0x010004d6
 _080F86A4: .4byte gUnknown_30054BC
 _080F86A8: .4byte 0x00000634
-_080F86AC: .4byte gUnknown_3003F50
+_080F86AC: .4byte gSendCmd
 _080F86B0: .4byte 0x01000008
 _080F86B4: .4byte gRecvCmds
 _080F86B8: .4byte 0x01000028
@@ -1277,7 +1277,7 @@ _080F9034: .4byte 0x01000028
 	thumb_func_start sub_80F9038
 sub_80F9038: @ 80F9038
 	push {lr}
-	ldr r3, _080F9064 @ =gUnknown_3003F50
+	ldr r3, _080F9064 @ =gSendCmd
 	ldr r2, _080F9068 @ =gRecvCmds
 	movs r1, 0x6
 _080F9040:
@@ -1288,7 +1288,7 @@ _080F9040:
 	subs r1, 0x1
 	cmp r1, 0
 	bge _080F9040
-	ldr r1, _080F9064 @ =gUnknown_3003F50
+	ldr r1, _080F9064 @ =gSendCmd
 	movs r2, 0
 	adds r0, r1, 0
 	adds r0, 0xC
@@ -1300,7 +1300,7 @@ _080F9056:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_080F9064: .4byte gUnknown_3003F50
+_080F9064: .4byte gSendCmd
 _080F9068: .4byte gRecvCmds
 	thumb_func_end sub_80F9038
 
@@ -2007,7 +2007,7 @@ _080F95E4:
 	ldrb r1, [r2]
 	strb r0, [r2]
 	bl sub_80FA510
-	ldr r5, _080F9658 @ =gUnknown_3003F50
+	ldr r5, _080F9658 @ =gSendCmd
 	add r4, sp, 0x48
 	adds r0, r5, 0
 	adds r1, r4, 0
@@ -2045,7 +2045,7 @@ _080F9648: .4byte 0x0000099c
 _080F964C: .4byte gUnknown_3007460
 _080F9650: .4byte gReceivedRemoteLinkPlayers
 _080F9654: .4byte 0x00000988
-_080F9658: .4byte gUnknown_3003F50
+_080F9658: .4byte gSendCmd
 	thumb_func_end sub_80F9514
 
 	thumb_func_start sub_80F965C
@@ -2723,7 +2723,7 @@ _080F9B68:
 	movs r0, 0xEE
 	lsls r0, 8
 	bl sub_80F9D04
-	ldr r1, _080F9B90 @ =gUnknown_3003F50
+	ldr r1, _080F9B90 @ =gSendCmd
 	ldr r3, _080F9B94 @ =gUnknown_3003ED2
 	adds r0, r5, r3
 	ldrh r0, [r0]
@@ -2739,7 +2739,7 @@ _080F9B68:
 	strh r0, [r1, 0x6]
 	b _080F9BF4
 	.align 2, 0
-_080F9B90: .4byte gUnknown_3003F50
+_080F9B90: .4byte gSendCmd
 _080F9B94: .4byte gUnknown_3003ED2
 _080F9B98: .4byte gUnknown_3003ED4
 _080F9B9C: .4byte gRecvCmds
@@ -2949,7 +2949,7 @@ sub_80F9D04: @ 80F9D04
 	push {r4,r5,lr}
 	lsls r0, 16
 	lsrs r1, r0, 16
-	ldr r5, _080F9D34 @ =gUnknown_3003F50
+	ldr r5, _080F9D34 @ =gSendCmd
 	strh r1, [r5]
 	movs r0, 0xF0
 	lsls r0, 7
@@ -2970,7 +2970,7 @@ sub_80F9D04: @ 80F9D04
 	beq _080F9DFC
 	b _080F9E22
 	.align 2, 0
-_080F9D34: .4byte gUnknown_3003F50
+_080F9D34: .4byte gSendCmd
 _080F9D38:
 	movs r0, 0xCC
 	lsls r0, 7
@@ -3103,7 +3103,7 @@ _080F9E28: .4byte gUnknown_3005028
 sub_80F9E2C: @ 80F9E2C
 	push {r4,lr}
 	adds r4, r0, 0
-	ldr r0, _080F9E58 @ =gUnknown_3003F50
+	ldr r0, _080F9E58 @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	bne _080F9E52
@@ -3122,7 +3122,7 @@ _080F9E52:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_080F9E58: .4byte gUnknown_3003F50
+_080F9E58: .4byte gSendCmd
 _080F9E5C: .4byte gUnknown_3005542
 	thumb_func_end sub_80F9E2C
 
@@ -3146,7 +3146,7 @@ _080F9E7C:
 	ldr r0, [r5]
 	cmp r0, 0
 	bne _080F9EA4
-	ldr r0, _080F9EB8 @ =gUnknown_3003F50
+	ldr r0, _080F9EB8 @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	bne _080F9EA4
@@ -3170,7 +3170,7 @@ _080F9EA8: .4byte gUnknown_843ED94
 _080F9EAC: .4byte 0x00000701
 _080F9EB0: .4byte gUnknown_843EDD8
 _080F9EB4: .4byte gUnknown_3005450
-_080F9EB8: .4byte gUnknown_3003F50
+_080F9EB8: .4byte gSendCmd
 _080F9EBC: .4byte gUnknown_203AC08
 _080F9EC0:
 	adds r0, r6, 0
@@ -3240,7 +3240,7 @@ _080F9F40: .4byte rfufunc_80F9F44
 	thumb_func_start rfufunc_80F9F44
 rfufunc_80F9F44: @ 80F9F44
 	push {r4,r5,lr}
-	ldr r0, _080F9F74 @ =gUnknown_3003F50
+	ldr r0, _080F9F74 @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	bne _080F9F98
@@ -3263,7 +3263,7 @@ rfufunc_80F9F44: @ 80F9F44
 	bls _080F9F98
 	b _080F9F94
 	.align 2, 0
-_080F9F74: .4byte gUnknown_3003F50
+_080F9F74: .4byte gSendCmd
 _080F9F78: .4byte gUnknown_3005450
 _080F9F7C:
 	bl GetMultiplayerId
@@ -3295,7 +3295,7 @@ sub_80F9FA8: @ 80F9FA8
 	ldr r0, _080FA014 @ =gUnknown_3005450
 	mov r12, r0
 	ldr r5, [r0, 0x70]
-	ldr r3, _080FA018 @ =gUnknown_3003F50
+	ldr r3, _080FA018 @ =gSendCmd
 	mov r2, r12
 	adds r2, 0x6C
 	ldrh r1, [r2]
@@ -3348,7 +3348,7 @@ _080FA00C:
 	bx r0
 	.align 2, 0
 _080FA014: .4byte gUnknown_3005450
-_080FA018: .4byte gUnknown_3003F50
+_080FA018: .4byte gSendCmd
 _080FA01C: .4byte rfufunc_80FA020
 	thumb_func_end sub_80F9FA8
 
@@ -3367,7 +3367,7 @@ rfufunc_80FA020: @ 80FA020
 	ldrb r0, [r5, 0xC]
 	cmp r0, 0
 	bne _080FA0E8
-	ldr r3, _080FA0CC @ =gUnknown_3003F50
+	ldr r3, _080FA0CC @ =gSendCmd
 	adds r2, r5, 0
 	adds r2, 0x6E
 	ldrh r0, [r2]
@@ -3439,7 +3439,7 @@ _080FA05C:
 	b _080FA0EC
 	.align 2, 0
 _080FA0C8: .4byte gUnknown_3005450
-_080FA0CC: .4byte gUnknown_3003F50
+_080FA0CC: .4byte gSendCmd
 _080FA0D0: .4byte 0xffff8900
 _080FA0D4: .4byte gRecvCmds
 _080FA0D8: .4byte gUnknown_843EBD4
@@ -3624,7 +3624,7 @@ _080FA220: .4byte sub_80FA160
 	thumb_func_start sub_80FA224
 sub_80FA224: @ 80FA224
 	push {r4,lr}
-	ldr r0, _080FA250 @ =gUnknown_3003F50
+	ldr r0, _080FA250 @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	bne _080FA248
@@ -3645,7 +3645,7 @@ _080FA248:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_080FA250: .4byte gUnknown_3003F50
+_080FA250: .4byte gSendCmd
 _080FA254: .4byte gUnknown_3005450
 _080FA258: .4byte sub_80FA1C4
 	thumb_func_end sub_80FA224
@@ -3789,7 +3789,7 @@ sub_80FA350: @ 80FA350
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080FA372
-	ldr r0, _080FA380 @ =gUnknown_3003F50
+	ldr r0, _080FA380 @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	bne _080FA372
@@ -3805,7 +3805,7 @@ _080FA372:
 	.align 2, 0
 _080FA378: .4byte gUnknown_3005450
 _080FA37C: .4byte 0x0000069e
-_080FA380: .4byte gUnknown_3003F50
+_080FA380: .4byte gSendCmd
 _080FA384: .4byte sub_80FA2B0
 	thumb_func_end sub_80FA350
 
@@ -3822,7 +3822,7 @@ sub_80FA388: @ 80FA388
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080FA416
-	ldr r0, _080FA3BC @ =gUnknown_3003F50
+	ldr r0, _080FA3BC @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	bne _080FA416
@@ -3834,7 +3834,7 @@ sub_80FA388: @ 80FA388
 	.align 2, 0
 _080FA3B4: .4byte gUnknown_3005450
 _080FA3B8: .4byte 0x0000069e
-_080FA3BC: .4byte gUnknown_3003F50
+_080FA3BC: .4byte gSendCmd
 _080FA3C0: .4byte sub_80FA2B0
 _080FA3C4:
 	bl GetLinkPlayerCount
@@ -3869,7 +3869,7 @@ _080FA3F2:
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080FA416
-	ldr r0, _080FA424 @ =gUnknown_3003F50
+	ldr r0, _080FA424 @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	bne _080FA416
@@ -3886,7 +3886,7 @@ _080FA416:
 	.align 2, 0
 _080FA41C: .4byte gUnknown_3005450
 _080FA420: .4byte 0x0000069e
-_080FA424: .4byte gUnknown_3003F50
+_080FA424: .4byte gSendCmd
 _080FA428: .4byte sub_80FA350
 	thumb_func_end sub_80FA388
 
@@ -4540,7 +4540,7 @@ _080FA8D8:
 	.align 2, 0
 _080FA8E8: .4byte gTasks
 _080FA8EC:
-	ldr r0, _080FA8FC @ =gUnknown_3003F50
+	ldr r0, _080FA8FC @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	bne _080FA9BC
@@ -4549,7 +4549,7 @@ _080FA8F4:
 	strh r0, [r4, 0x8]
 	b _080FA9BC
 	.align 2, 0
-_080FA8FC: .4byte gUnknown_3003F50
+_080FA8FC: .4byte gSendCmd
 _080FA900:
 	ldrb r0, [r5, 0xD]
 	b _080FA92C
@@ -4831,7 +4831,7 @@ _080FAB0C:
 	.4byte _080FABEE
 	.4byte _080FAC78
 _080FAB24:
-	ldr r0, _080FAB40 @ =gUnknown_3003F50
+	ldr r0, _080FAB40 @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	beq _080FAB2E
@@ -4844,9 +4844,9 @@ _080FAB2E:
 	bl sub_80F9D04
 	b _080FAC2E
 	.align 2, 0
-_080FAB40: .4byte gUnknown_3003F50
+_080FAB40: .4byte gSendCmd
 _080FAB44:
-	ldr r0, _080FAB58 @ =gUnknown_3003F50
+	ldr r0, _080FAB58 @ =gSendCmd
 	ldrh r0, [r0]
 	cmp r0, 0
 	beq _080FAB4E
@@ -4857,7 +4857,7 @@ _080FAB4E:
 	adds r1, r3
 	b _080FAC36
 	.align 2, 0
-_080FAB58: .4byte gUnknown_3003F50
+_080FAB58: .4byte gSendCmd
 _080FAB5C:
 	bl GetBlockReceivedStatus
 	lsls r0, 24
@@ -7269,7 +7269,7 @@ sub_80FBDB8: @ 80FBDB8
 	push {r4-r6,lr}
 	lsls r0, 24
 	lsrs r4, r0, 24
-	ldr r6, _080FBE10 @ =gUnknown_3003F50
+	ldr r6, _080FBE10 @ =gSendCmd
 	ldrh r0, [r6]
 	cmp r0, 0
 	bne _080FBE08
@@ -7309,7 +7309,7 @@ _080FBE08:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_080FBE10: .4byte gUnknown_3003F50
+_080FBE10: .4byte gSendCmd
 _080FBE14: .4byte gUnknown_3005450
 _080FBE18: .4byte gTasks
 _080FBE1C: .4byte gUnknown_843EC41

include/link.h

@@ -138,7 +138,7 @@ extern u16 gRecvCmds[MAX_RFU_PLAYERS][CMD_LENGTH];
 extern u8 gBlockSendBuffer[BLOCK_BUFFER_SIZE];
 extern u16 gLinkType;
 extern u32 gLinkStatus;
-extern u16 gBlockRecvBuffer[MAX_LINK_PLAYERS][BLOCK_BUFFER_SIZE / 2];
+extern u16 gBlockRecvBuffer[MAX_RFU_PLAYERS][BLOCK_BUFFER_SIZE / 2];
 extern u16 gSendCmd[CMD_LENGTH];
 extern u8 gShouldAdvanceLinkState;
 extern struct LinkPlayer gLinkPlayers[];
@@ -147,7 +147,7 @@ extern bool8 gReceivedRemoteLinkPlayers;
 extern bool8 gLinkVSyncDisabled;
 extern u8 gWirelessCommType;
 
-extern u8 gUnknown_3003F84;
+extern u8 gShouldAdvanceLinkState;
 extern u64 gSioMlt_Recv;
 
 void Task_DestroySelf(u8);
@@ -208,7 +208,7 @@ void sub_80098D8(void);
 void CloseLink(void);
 bool8 IsLinkTaskFinished(void);
 bool32 sub_800B270(void);
-void sub_800B388(void);
+void ResetSerial(void);
 void sub_8054A28(void);
 void sub_800B1F4(void);
 void LoadWirelessStatusIndicatorSpriteGfx(void);

src/ereader_helpers.c

@@ -51,7 +51,7 @@ int EReader_Send(size_t r6, const void * r5)
     {
         GetKeyInput();
         if (TEST_BUTTON(sJoyNew, B_BUTTON))
-            gUnknown_3003F84 = 2;
+            gShouldAdvanceLinkState = 2;
 
         sSendRecvStatus = EReaderHandleTransfer(1, r6, r5, NULL);
         if ((sSendRecvStatus & 0x13) == 0x10)
@@ -71,7 +71,7 @@ int EReader_Send(size_t r6, const void * r5)
         }
         else
         {
-            gUnknown_3003F84 = 0;
+            gShouldAdvanceLinkState = 0;
             VBlankIntrWait();
         }
     }
@@ -90,7 +90,7 @@ int EReader_Recv(void * r5)
     {
         GetKeyInput();
         if (TEST_BUTTON(sJoyNew, B_BUTTON))
-            gUnknown_3003F84 = 2;
+            gShouldAdvanceLinkState = 2;
 
         sSendRecvStatus = EReaderHandleTransfer(0, 0, NULL, r5);
         if ((sSendRecvStatus & 0x13) == 0x10)
@@ -110,7 +110,7 @@ int EReader_Recv(void * r5)
         }
         else
         {
-            gUnknown_3003F84 = 0;
+            gShouldAdvanceLinkState = 0;
             VBlankIntrWait();
         }
     }
@@ -150,7 +150,7 @@ static void OpenSerial32(void)
     REG_RCNT = 0;
     REG_SIOCNT = SIO_INTR_ENABLE | SIO_32BIT_MODE;
     REG_SIOCNT |= SIO_MULTI_SD;
-    gUnknown_3003F84 = 0;
+    gShouldAdvanceLinkState = 0;
     sCounter1 = 0;
     sCounter2 = 0;
 }
@@ -167,7 +167,7 @@ u16 EReaderHandleTransfer(u8 mode, size_t size, const void * data, void * recvBu
     case 1:
         if (DetermineSendRecvState(mode))
             EnableSio();
-        if (gUnknown_3003F84 == 2)
+        if (gShouldAdvanceLinkState == 2)
         {
             sSendRecvMgr.field_04 = 2;
             sSendRecvMgr.state = 6;
@@ -179,7 +179,7 @@ u16 EReaderHandleTransfer(u8 mode, size_t size, const void * data, void * recvBu
         sSendRecvMgr.state = 3;
         // fallthrough
     case 3:
-        if (gUnknown_3003F84 == 2)
+        if (gShouldAdvanceLinkState == 2)
         {
             sSendRecvMgr.field_04 = 2;
             sSendRecvMgr.state = 6;

src/intro.c

@@ -561,7 +561,7 @@ static bool8 sub_80EC62C(void)
         }
         break;
     case 142:
-        sub_800B388();
+        ResetSerial();
         SetMainCallback2(sub_80EC5B8);
         break;
     }

src/link.c

@@ -27,18 +27,68 @@ struct LinkTestBGInfo
     u32 dummy_C;
 };
 
-u32 gUnknown_3000E58;
+#define static __attribute__((section(".bss")))
+static struct BlockTransfer sBlockSend;
+ALIGNED(8) static struct BlockTransfer sBlockRecv[MAX_LINK_PLAYERS];
+static u32 sBlockSendDelayCounter;
+static u32 gUnknown_3000E4C;
+static u8 gUnknown_3000E50;
+static u32 sPlayerDataExchangeStatus;
+static u32 gUnknown_3000E58;
+static u8 sLinkTestLastBlockSendPos;
+ALIGNED(8) static u8 sLinkTestLastBlockRecvPos[MAX_LINK_PLAYERS];
+static u8 sNumVBlanksWithoutSerialIntr;
+static bool8 sSendBufferEmpty;
+static u16 sSendNonzeroCheck;
+static u16 sRecvNonzeroCheck;
+static u8 sChecksumAvailable;
+static u8 sHandshakePlayerCount;
+#undef static
 
 struct LinkTestBGInfo gLinkTestBGInfo;
+bool8 gLinkErrorOccurred;
+bool8 gSuppressLinkErrorMessage;
+void (*gLinkCallback)(void);
+bool8 gUnknown_3003F28;
+bool8 gUnknown_3003F24;
+u16 gUnknown_3003F34;
+u8 gRemoteLinkPlayersNotReceived[MAX_LINK_PLAYERS];
+u8 gUnknown_3003F30[MAX_LINK_PLAYERS];
+u8 gUnknown_3003F2C[MAX_LINK_PLAYERS];
+u16 gLinkTestBlockChecksums[MAX_LINK_PLAYERS];
 
+EWRAM_DATA bool8 gLinkTestDebugValuesEnabled = FALSE;
+EWRAM_DATA bool8 gUnknown_2022111 = FALSE;
+EWRAM_DATA u32 gUnknown_2022114 = 0;
+EWRAM_DATA u16 gBlockRecvBuffer[MAX_RFU_PLAYERS][BLOCK_BUFFER_SIZE / 2] = {};
+EWRAM_DATA u8 gBlockSendBuffer[BLOCK_BUFFER_SIZE] = {};
+EWRAM_DATA bool8 gLinkOpen = FALSE;
+EWRAM_DATA u16 gLinkType = 0;
+EWRAM_DATA u16 gLinkTimeOutCounter = 0;
 EWRAM_DATA struct LinkPlayer gLocalLinkPlayer = {};
+EWRAM_DATA struct LinkPlayer gLinkPlayers[MAX_RFU_PLAYERS] = {};
+EWRAM_DATA struct LinkPlayer gSavedLinkPlayers[MAX_RFU_PLAYERS] = {};
+EWRAM_DATA struct {
+    u32 status;
+    u8 lastRecvQueueCount;
+    u8 lastSendQueueCount;
+    u8 unk_06;
+} sLinkErrorBuffer = {};
+EWRAM_DATA u16 gUnknown_202285C = 0;
+EWRAM_DATA void *gUnknown_2022860 = NULL;
 
-void sub_800B210(void);
 void InitLocalLinkPlayer(void);
 void sub_800978C(void);
+u16 LinkTestCalcBlockChecksum(const u16 *src, u16 size);
+void LinkTest_prnthex(u32 pos, u8 a0, u8 a1, u8 a2);
+void LinkCB_RequestPlayerDataExchange(void);
 void ResetBlockSend(void);
 void task00_link_test(u8 taskId);
 void CB2_LinkTest(void);
+void EnableSerial(void);
+void sub_800B210(void);
+void sub_80F8DC0(void);
+void DisableSerial(void);
 
 extern const u16 gLinkTestDigitsPal[0x20];
 extern const u16 gLinkTestDigitsGfx[0x1000];
@@ -151,3 +201,113 @@ void InitLocalLinkPlayer(void)
         gLocalLinkPlayer.name[8] |= 0x10;
     }
 }
+
+void sub_800978C(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void InitLink(void)
+{
+    int i;
+
+    for (i = 0; i < 8; i++)
+    {
+        gSendCmd[i] = 0xEFFF;
+    }
+    gLinkOpen = TRUE;
+    EnableSerial();
+}
+
+void Task_TriggerHandshake(u8 taskId)
+{
+    if (++gTasks[taskId].data[0] == 5)
+    {
+        gShouldAdvanceLinkState = 1;
+        DestroyTask(taskId);
+    }
+}
+
+void OpenLink(void)
+{
+    int i;
+
+    if (!gWirelessCommType)
+    {
+        ResetSerial();
+        InitLink();
+        gLinkCallback = LinkCB_RequestPlayerDataExchange;
+        gLinkVSyncDisabled = FALSE;
+        gLinkErrorOccurred = FALSE;
+        gSuppressLinkErrorMessage = FALSE;
+        ResetBlockReceivedFlags();
+        ResetBlockSend();
+        gUnknown_3000E4C = 0;
+        gUnknown_3003F28 = FALSE;
+        gUnknown_3003F24 = FALSE;
+        gUnknown_3003F34 = 0;
+        CreateTask(Task_TriggerHandshake, 2);
+    }
+    else
+    {
+        sub_80F86F4();
+    }
+    gReceivedRemoteLinkPlayers = 0;
+    for (i = 0; i < MAX_LINK_PLAYERS; i++)
+    {
+        gRemoteLinkPlayersNotReceived[i] = TRUE;
+        gUnknown_3003F30[i] = FALSE;
+        gUnknown_3003F2C[i] = FALSE;
+    }
+}
+
+void CloseLink(void)
+{
+    gReceivedRemoteLinkPlayers = FALSE;
+    if (gWirelessCommType)
+    {
+        sub_80F8DC0();
+    }
+    gLinkOpen = FALSE;
+    DisableSerial();
+}
+
+void TestBlockTransfer(u8 nothing, u8 is, u8 used)
+{
+    u8 i;
+    u8 status;
+
+    if (sLinkTestLastBlockSendPos != sBlockSend.pos)
+    {
+        LinkTest_prnthex(sBlockSend.pos, 2, 3, 2);
+        sLinkTestLastBlockSendPos = sBlockSend.pos;
+    }
+    for (i = 0; i < MAX_LINK_PLAYERS; i++)
+    {
+        if (sLinkTestLastBlockRecvPos[i] != sBlockRecv[i].pos)
+        {
+            LinkTest_prnthex(sBlockRecv[i].pos, 2, i + 4, 2);
+            sLinkTestLastBlockRecvPos[i] = sBlockRecv[i].pos;
+        }
+    }
+    status = GetBlockReceivedStatus();
+    if (status == 0xF) // 0b1111
+    {
+        for (i = 0; i < MAX_LINK_PLAYERS; i++)
+        {
+            if ((status >> i) & 1)
+            {
+                gLinkTestBlockChecksums[i] = LinkTestCalcBlockChecksum(gBlockRecvBuffer[i], sBlockRecv[i].size);
+                ResetBlockReceivedFlag(i);
+                if (gLinkTestBlockChecksums[i] != 0x0342)
+                {
+                    gLinkTestDebugValuesEnabled = FALSE;
+                    gUnknown_2022111 = FALSE;
+                }
+            }
+        }
+    }
+}
+

src/mevent.c

@@ -126,7 +126,7 @@ u8 sub_8143674(struct MEvent_Str_1 *mgr)
         resp = 2;
     if (mgr->status & 4)
         resp = 3;
-    gUnknown_3003F84 = 0;
+    gShouldAdvanceLinkState = 0;
     return resp;
 }
 

sym_bss.txt

@@ -6,58 +6,19 @@
 
 	.space 0x4
 
-	.include "src/bg.o"
-	.include "src/malloc.o"
-	.include "src/text_printer.o"
-	.include "src/sprite.o"
-
 	.align 2
-gUnknown_3000E08: @ 3000E08
+	.include "src/bg.o"
-	.space 0x10
+	.align 2
-
+	.include "src/malloc.o"
-gUnknown_3000E18: @ 3000E18
+	.align 2
-	.space 0x30
+	.include "src/text_printer.o"
-
+	.align 2
-gUnknown_3000E48: @ 3000E48
+	.include "src/sprite.o"
-	.space 0x4
+	.align 2
-
+	.include "src/link.o"
-gUnknown_3000E4C: @ 3000E4C
+	.align 2
-	.space 0x4
-
-gUnknown_3000E50: @ 3000E50
-	.space 0x4
-
-gUnknown_3000E54: @ 3000E54
-	.space 0x4
-
-gUnknown_3000E58: @ 3000E58
-	.space 0x4
-
-gUnknown_3000E5C: @ 3000E5C
-	.space 0x4
-
-gUnknown_3000E60: @ 3000E60
-	.space 0x4
-
-gUnknown_3000E64: @ 3000E64
-	.space 0x1
-
-gUnknown_3000E65: @ 3000E65
-	.space 0x1
-
-gUnknown_3000E66: @ 3000E66
-	.space 0x2
-
-gUnknown_3000E68: @ 3000E68
-	.space 0x2
-
-gUnknown_3000E6A: @ 3000E6A
-	.space 0x1
-
-gUnknown_3000E6B: @ 3000E6B
-	.space 0x1
-
 	.include "src/multiboot.o"
+	.align 2
 	.include "src/daycare.o"
 
 gUnknown_3000E78: @ 3000E78

sym_common.txt

@@ -15,13 +15,13 @@ gUnknown_3003E6C: @ 3003E6C
 gUnknown_3003E70: @ 3003E70
 	.space 0x3C
 
-gUnknown_3003EAC: @ 3003EAC
+gLinkErrorOccurred: @ 3003EAC
 	.space 0x4
 
 gUnknown_3003EB0: @ 3003EB0
 	.space 0x8
 
-gUnknown_3003EB8: @ 3003EB8
+gRemoteLinkPlayersNotReceived: @ 3003EB8
 	.space 0x4
 
 gUnknown_3003EBC: @ 3003EBC
@@ -57,7 +57,7 @@ gUnknown_3003F30: @ 3003F30
 gUnknown_3003F34: @ 3003F34
 	.space 0x4
 
-gUnknown_3003F38: @ 3003F38
+gSuppressLinkErrorMessage: @ 3003F38
 	.space 0x4
 
 gWirelessCommType: @ 3003F3C
@@ -66,7 +66,7 @@ gWirelessCommType: @ 3003F3C
 gUnknown_3003F40: @ 3003F40
 	.space 0x10
 
-gUnknown_3003F50: @ 3003F50
+gSendCmd: @ 3003F50
 	.space 0x10
 
 gUnknown_3003F60: @ 3003F60
@@ -78,13 +78,13 @@ gReceivedRemoteLinkPlayers: @ 3003F64
 gLinkTestBGInfo: @ 3003F70
 	.space 0x10
 
-gUnknown_3003F80: @ 3003F80
+gLinkCallback: @ 3003F80
 	.space 0x4
 
-gUnknown_3003F84: @ 3003F84
+gShouldAdvanceLinkState: @ 3003F84
 	.space 0x4
 
-gUnknown_3003F88: @ 3003F88
+gLinkTestBlockChecksums: @ 3003F88
 	.space 0x8
 
 gUnknown_3003F90: @ 3003F90

sym_ewram.txt

@@ -13,57 +13,9 @@
 	.include "src/sprite.o"
 	.align 2
     .include "src/string_util.o"
-
-	@ .include "src/link.o"
-gLinkTestDebugValuesEnabled: @ 2022110
-	.space 0x1
-
-gUnknown_2022111: @ 2022111
-	.space 0x1
-
 	.align 2
-gUnknown_2022114: @ 2022114
+	.include "src/link.o"
-	.space 0x4
+	.space 8
-
-gBlockRecvBuffer: @ 2022118
-	.space 0x500
-
-gBlockSendBuffer: @ 2022618
-	.space 0x100
-
-gLinkOpen: @ 2022718
-	.space 0x1
-
-	.align 1
-gLinkType: @ 202271A
-	.space 0x2
-
-gLinkTimeOutCounter: @ 202271C
-	.space 0x2
-
-	.align 2
-gLocalLinkPlayer: @ 2022720
-	.space 0x1C
-
-	.align 2
-gLinkPlayers: @ 202273C
-	.space 0x8C
-
-	.align 2
-gSavedLinkPlayers: @ 20227C8
-	.space 0x8C
-
-	.align 2
-sLinkErrorBuffer: @ 2022854
-	.space 0x8
-
-	.align 1
-gUnknown_202285C: @ 202285C
-	.space 0x2
-
-	.align 2
-gUnknown_2022860: @ 2022860
-	.space 0xC
 
 	@ .include "src/link_rfu.o"
 	.include "src/battle_controllers.o"