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sub_81449E0

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This commit is contained in:
PikalaxALT
2018-11-30 10:52:54 -05:00
parent 80dbdacace
commit 5a80a339cd
3 changed files with 80 additions and 143 deletions
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asm/mevent_server.s
-133
View File
@@ -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
+1
View File
@@ -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
+79 -10
View File
@@ -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, (r4 = buff), sizeof(buff));
srv->unk_0C = r4[2];
srv->unk_0A = r4[1];
sub_81448BC(srv->unk_05, &buff, sizeof(buff));
srv->unk_0C = buff.unk4;
srv->unk_0A = buff.unk2;
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;
}