sub_81449E0

asm/mevent_server.s

@@ -5,139 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_81449E0
-sub_81449E0: @ 81449E0
-	push {r4,r5,lr}
-	sub sp, 0x8
-	adds r4, r0, 0
-	ldr r5, [r4]
-	cmp r5, 0x1
-	beq _08144A4C
-	cmp r5, 0x1
-	bgt _081449F6
-	cmp r5, 0
-	beq _08144A00
-	b _08144AE2
-_081449F6:
-	cmp r5, 0x2
-	beq _08144AA0
-	cmp r5, 0x3
-	beq _08144ACA
-	b _08144AE2
-_08144A00:
-	bl sub_800A4BC
-	lsls r0, 24
-	cmp r0, 0
-	beq _08144AE2
-	ldrh r1, [r4, 0xE]
-	ldr r2, _08144A44 @ =0xffff0000
-	ldr r0, [sp]
-	ands r0, r2
-	orrs r0, r1
-	str r0, [sp]
-	ldrh r1, [r4, 0x14]
-	ldr r0, [sp, 0x4]
-	ands r0, r2
-	orrs r0, r1
-	str r0, [sp, 0x4]
-	ldr r0, [r4, 0x1C]
-	bl CalcCRC16WithTable
-	lsls r0, 16
-	ldr r2, _08144A48 @ =0x0000ffff
-	ldr r1, [sp]
-	ands r1, r2
-	orrs r1, r0
-	str r1, [sp]
-	lsrs r1, 16
-	strh r1, [r4, 0x12]
-	strh r5, [r4, 0x10]
-	movs r0, 0
-	mov r1, sp
-	movs r2, 0x8
-	bl SendBlock
-	b _08144AC2
-	.align 2, 0
-_08144A44: .4byte 0xffff0000
-_08144A48: .4byte 0x0000ffff
-_08144A4C:
-	bl sub_800A4BC
-	lsls r0, 24
-	cmp r0, 0
-	beq _08144AE2
-	ldrb r0, [r4, 0x4]
-	bl sub_81448D8
-	cmp r0, 0
-	beq _08144AE2
-	ldrb r0, [r4, 0x4]
-	bl sub_81448FC
-	ldrh r1, [r4, 0x10]
-	lsls r0, r1, 6
-	subs r0, r1
-	lsls r3, r0, 2
-	ldrh r0, [r4, 0x14]
-	subs r0, r3
-	cmp r0, 0xFC
-	bhi _08144A8C
-	ldr r1, [r4, 0x1C]
-	adds r1, r3
-	lsls r2, r0, 16
-	lsrs r2, 16
-	movs r0, 0
-	bl SendBlock
-	ldrh r0, [r4, 0x10]
-	adds r0, 0x1
-	strh r0, [r4, 0x10]
-	b _08144AC2
-_08144A8C:
-	ldr r1, [r4, 0x1C]
-	adds r1, r3
-	movs r0, 0
-	movs r2, 0xFC
-	bl SendBlock
-	ldrh r0, [r4, 0x10]
-	adds r0, 0x1
-	strh r0, [r4, 0x10]
-	b _08144AE2
-_08144AA0:
-	bl sub_800A4BC
-	lsls r0, 24
-	cmp r0, 0
-	beq _08144AE2
-	ldr r0, [r4, 0x1C]
-	ldrh r1, [r4, 0x14]
-	bl CalcCRC16WithTable
-	lsls r0, 16
-	lsrs r0, 16
-	ldrh r1, [r4, 0x12]
-	cmp r0, r1
-	beq _08144AC2
-	bl sub_80FA190
-	b _08144AE2
-_08144AC2:
-	ldr r0, [r4]
-	adds r0, 0x1
-	str r0, [r4]
-	b _08144AE2
-_08144ACA:
-	ldrb r0, [r4, 0x4]
-	bl sub_81448D8
-	cmp r0, 0
-	beq _08144AE2
-	ldrb r0, [r4, 0x4]
-	bl sub_81448FC
-	movs r0, 0
-	str r0, [r4]
-	movs r0, 0x1
-	b _08144AE4
-_08144AE2:
-	movs r0, 0
-_08144AE4:
-	add sp, 0x8
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_81449E0
-
 	thumb_func_start sub_8144AEC
 sub_8144AEC: @ 8144AEC
 	push {r4,lr}

include/link.h

@@ -207,5 +207,6 @@ void sub_800A5BC(void);
 void sub_800AA80(u8);
 void sub_80098D8(void);
 void sub_80098B8(void);
+bool8 sub_800A4BC(void);
 
 #endif // GUARD_LINK_H

src/mevent_server.c

@@ -21,7 +21,7 @@ struct mevent_srv_sub
     u16 unk_12;
     u16 unk_14;
     void * unk_18;
-    u32 unk_1C;
+    void * unk_1C;
     u32 (*unk_20)(struct mevent_srv_sub *);
     u32 (*unk_24)(struct mevent_srv_sub *);
 };
@@ -40,6 +40,13 @@ struct mevent_srv_ish
     struct mevent_srv_sub unk_24;
 };
 
+struct send_recv_buff
+{
+    u16 unk0;
+    u16 unk2;
+    u16 unk4;
+};
+
 EWRAM_DATA struct mevent_srv_ish * gUnknown_203F3C0 = NULL;
 
 u32 sub_814490C(struct mevent_srv_sub *);
@@ -66,13 +73,13 @@ void sub_814485C(struct mevent_srv_sub * srv, u8 a1, u8 a2)
     srv->unk_0A = 0;
     srv->unk_0C = 0;
     srv->unk_08 = 0;
-    srv->unk_1C = 0;
+    srv->unk_1C = NULL;
     srv->unk_18 = NULL;
     srv->unk_24 = sub_81449E0;
     srv->unk_20 = sub_814490C;
 }
 
-void sub_8144888(struct mevent_srv_sub * srv, u16 a1, u32 a2, u32 a3)
+void sub_8144888(struct mevent_srv_sub * srv, u16 a1, void * a2, u32 a3)
 {
     srv->unk_00 = 0;
     srv->unk_0E = a1;
@@ -95,7 +102,7 @@ void sub_81448AC(struct mevent_srv_sub * srv, u16 a1, void * a2)
     srv->unk_18 = a2;
 }
 
-void sub_81448BC(u32 recv_idx, u16 * dest, size_t size)
+void sub_81448BC(u32 recv_idx, void * dest, size_t size)
 {
     memcpy(dest, gBlockRecvBuffer[recv_idx], size);
 }
@@ -115,22 +122,22 @@ void sub_81448FC(u32 recv_idx)
 
 bool32 sub_814490C(struct mevent_srv_sub * srv)
 {
-    u16 buff[4];
+    struct send_recv_buff buff;
+
     switch (srv->unk_00)
     {
         case 0:
             if (sub_81448D8(srv->unk_05))
             {
-                u16 * r4;
+                sub_81448BC(srv->unk_05, &buff, sizeof(buff));
-                sub_81448BC(srv->unk_05, (r4 = buff), sizeof(buff));
+                srv->unk_0C = buff.unk4;
-                srv->unk_0C = r4[2];
+                srv->unk_0A = buff.unk2;
-                srv->unk_0A = r4[1];
                 if (srv->unk_0C > 0x400)
                 {
                     sub_80FA190();
                     return FALSE;
                 }
-                else if (srv->unk_06 != buff[0])
+                else if (srv->unk_06 != buff.unk0)
                 {
                     sub_80FA190();
                     return FALSE;
@@ -178,3 +185,65 @@ bool32 sub_814490C(struct mevent_srv_sub * srv)
 
     return FALSE;
 }
+
+bool32 sub_81449E0(struct mevent_srv_sub * srv)
+{
+    struct send_recv_buff buff;
+
+    switch (srv->unk_00)
+    {
+        case 0:
+            if (sub_800A4BC())
+            {
+                buff.unk0 = srv->unk_0E;
+                buff.unk4 = srv->unk_14;
+                buff.unk2 = CalcCRC16WithTable(srv->unk_1C, srv->unk_14);
+                srv->unk_12 = buff.unk2;
+                srv->unk_10 = 0;
+                SendBlock(0, &buff, sizeof(buff));
+                ++srv->unk_00;
+            }
+            break;
+        case 1:
+            if (sub_800A4BC())
+            {
+                if (sub_81448D8(srv->unk_04))
+                {
+                    size_t r3;
+                    sub_81448FC(srv->unk_04);
+                    r3 = 252 * srv->unk_10;
+                    if (srv->unk_14 - r3 <= 252)
+                    {
+                        SendBlock(0, srv->unk_1C + r3, srv->unk_14 - r3);
+                        ++srv->unk_10;
+                        ++srv->unk_00;
+                    }
+                    else
+                    {
+                        SendBlock(0, srv->unk_1C + r3, 252);
+                        ++srv->unk_10;
+                    }
+                }
+            }
+            break;
+        case 2:
+            if (sub_800A4BC())
+            {
+                if (CalcCRC16WithTable(srv->unk_1C, srv->unk_14) != srv->unk_12)
+                    sub_80FA190();
+                else
+                    ++srv->unk_00;
+            }
+            break;
+        case 3:
+            if (sub_81448D8(srv->unk_04))
+            {
+                sub_81448FC(srv->unk_04);
+                srv->unk_00 = 0;
+                return TRUE;
+            }
+            break;
+    }
+
+    return FALSE;
+}