path: root/fw/decomp/merit_24.0.0.53_7bc0749b.c

/* merit 24.0.0.53  (7bc0749b) -- named functions
 * generated by fw/ta_re.py -- do not edit
 * reference: merit_24.0.4.42_444eceee.elf
 * functions: 36 total in build, 29 named, 7 anonymous
 * porting tiers: {"DISPATCH": 2, "EXACT": 9, "FUZZY": 0, "MNEM": 11, "ambiguous": 4, "cmd_protos": 6, "comments": 0, "dispatch_conflict": 0, "none": 10, "protos": 6, "relabelled": 0, "types": 1}
 *
 * Addresses are omitted and functions are ordered by NAME so that the same
 * function lines up across versions. See the .index.json sidecar for
 * name -> address.
 *
 * CAUTION on ported names: a name is only an identity claim at tier=EXACT.
 * At tier=MNEM/FUZZY the bytes differ from the reference, so any ADDRESS or
 * CONTENT HASH embedded in the name (e.g. *_4025F8, gcp_lib_<hash8>_*) still
 * refers to the REFERENCE build and does not describe this one.
 */

/* ==== merit_TA_CloseSessionEntryPoint  [tier=ENTRY size=2] ==== */
void merit_TA_CloseSessionEntryPoint()
{
  ;
}

/* ==== merit_TA_CreateEntryPoint  [tier=MNEM size=16] ==== */
int merit_TA_CreateEntryPoint()
{
  merit_lib_zero_fill_bytes(result: (int *)off_401DE8, a2: 0x4141u);
  return 0;
}

/* ==== merit_TA_DestroyEntryPoint  [tier=ENTRY size=2] ==== */
void merit_TA_DestroyEntryPoint()
{
  ;
}

/* ==== merit_TA_InvokeCommandEntryPoint  [tier=ENTRY size=132] ==== */
int __fastcall merit_TA_InvokeCommandEntryPoint(int a1, int a2, char a3, struct merit_req **a4)
{
  int result; // r0
  struct merit_req *v6; // r5
  int v7; // r0
  unsigned int v8; // r0

  result = dword_401E74 + 6;
  if ( (a3 & 0xF) == 7 && a4 != nullptr )
  {
    if ( (unsigned int)a4[1] >= 0x2024 )
    {
      v6 = *a4;
      if ( *a4 != nullptr )
      {
        switch ( *(_DWORD *)v6 )
        {
          case 1:
            v7 = merit_cmd01(ctx: *a4, params: (struct ta_params *)dword_401E74);
            break;
          case 2:
            v7 = merit_cmd02(ctx: *a4, params: (struct ta_params *)dword_401E74);
            break;
          case 3:
            v7 = merit_cmd03(ctx: *a4, params: (struct ta_params *)dword_401E74);
            break;
          case 4:
            v7 = merit_cmd04(ctx: *a4, params: (struct ta_params *)dword_401E74);
            break;
          case 5:
            v7 = merit_cmd05(ctx: *a4, params: (struct ta_params *)dword_401E74);
            break;
          case 6:
            v7 = merit_cmd06(ctx: *a4, params: (struct ta_params *)dword_401E74);
            break;
          default:
            v7 = 258;
            break;
        }
        *((_DWORD *)v6 + 2) = v7;
        v8 = (unsigned int)a4[1];
        *(_DWORD *)v6 = v8;
        *((_DWORD *)v6 + 1) = v8 | 0x80000000;
        return 0;
      }
      else
      {
        return dword_401E74;
      }
    }
    else
    {
      return dword_401E74 + 16;
    }
  }
  return result;
}

/* ==== merit_TA_OpenSessionEntryPoint  [tier=EXACT size=4] ==== */
int merit_TA_OpenSessionEntryPoint()
{
  return 0;
}

/* ==== merit_cmd01  [tier=DISPATCH size=44] ==== */
int __fastcall merit_cmd01(void *ctx, struct ta_params *params)
{
  _BYTE *v2; // r2
  int i; // r1

  v2 = (char *)&(*off_401DE8)[64] + 1;
  for ( i = 1; ; ++i )
  {
    if ( i == 65 )
      return 256;
    if ( *v2 == 0 )
      break;
    v2 += 257;
  }
  *v2 = 1;
  *((_DWORD *)ctx + 1033) = i;
  return 0;
}

/* ==== merit_cmd02  [tier=MNEM size=120] ==== */
int __fastcall merit_cmd02(void *ctx, struct ta_params *params)
{
  int v4; // r0
  int v5; // r1
  int v6; // [sp+0h] [bp-28h] BYREF

  merit_lib_zero_fill_words(result: &v6, a2: 0x28u);
  if ( merit_sysdrv_rpc_200() != 0 )
    return 576;
  v4 = *((_DWORD *)ctx + 4);
  if ( v4 == 2 )
  {
    *off_401DC0 = 2;
    v5 = 3947;
    goto LABEL_7;
  }
  if ( v4 == 1 )
  {
    *off_401DC0 = 1;
    v5 = 3944;
LABEL_7:
    *((_DWORD *)ctx + 1033) = v5;
    return 0;
  }
  return 544;
}

/* ==== merit_cmd03  [tier=MNEM size=208] ==== */
int __fastcall merit_cmd03(void *ctx, struct ta_params *params)
{
  int v3; // r5
  int v5; // [sp+0h] [bp-2Ch] BYREF

  v3 = *((_DWORD *)ctx + 4);
  merit_lib_zero_fill_words(result: &v5, a2: 0x28u);
  if ( (unsigned int)(v3 - 1) > 0x3F || *((_BYTE *)off_401DE8 + 257 * v3) == 0 )
    return 259;
  if ( merit_sysdrv_rpc_200() != 0 )
    return 576;
  merit_sysdrv_rpc_35();
  *((_DWORD *)ctx + 1037) = 16;
  merit_lib_thunk_tailjump();
  if ( *off_401DC0 == 2 )
  {
    *((_DWORD *)ctx + 2025) = 3947;
    goto LABEL_10;
  }
  if ( *off_401DC0 == 1 )
  {
    *((_DWORD *)ctx + 2025) = 3944;
LABEL_10:
    merit_lib_thunk_tailjump();
  }
  return 0;
}

/* ==== merit_cmd04  [tier=MNEM size=186] ==== */
int __fastcall merit_cmd04(void *ctx, struct ta_params *params)
{
  int v2; // r7
  int *v3; // r8
  int *v4; // r6
  int v6; // r0
  int v7; // r1
  int result; // r0
  char *v9; // r5
  int v10; // r0
  int v11; // r1
  _BYTE *v12; // r5
  unsigned int v13; // [sp+4h] [bp-108h] BYREF
  _DWORD v14[8]; // [sp+8h] [bp-104h] BYREF
  int v15; // [sp+28h] [bp-E4h]
  int v16; // [sp+2Ch] [bp-E0h]
  int v17; // [sp+108h] [bp-4h]

  v4 = off_401CE0;
  v17 = *off_401CE0;
  v6 = *((_DWORD *)ctx + 4);
  if ( (unsigned int)(v6 - 1) <= 0x3F && (v3 = (int *)off_401DE8, v2 = 257 * v6, *((_BYTE *)off_401DE8 + 257 * v6) != 0) )
  {
    merit_lib_zero_fill_words(result: v14, a2: 0x100u);
    v7 = *((_DWORD *)ctx + 69);
    v13 = 256;
    if ( sub_401468(a1: (int)ctx + 20, a2: v7, a3: (int)v14, a4: &v13) == 0 )
      goto LABEL_8;
    result = 267;
  }
  else
  {
    result = 259;
  }
  while ( *v4 != v17 )
  {
    ((void (__fastcall *)(int, int))loc_402110)(a1: result, a2: *v4 - v17);
LABEL_8:
    v9 = (char *)v3 + v2;
    if ( sub_40205E(a1: (char *)v3 + v2 + 1, a2: v14, a3: 16) != 0 )
    {
      result = 560;
    }
    else
    {
      merit_lib_thunk_tailjump();
      v10 = v15;
      v11 = v16;
      v9[33] = v15;
      v12 = v9 + 33;
      v12[4] = v11;
      v12 += 4;
      v12[3] = HIBYTE(v11);
      v12[2] = BYTE2(v11);
      v12[1] = BYTE1(v11);
      *(v12 - 1) = HIBYTE(v10);
      *(v12 - 2) = BYTE2(v10);
      *(v12 - 3) = BYTE1(v10);
      result = 0;
    }
  }
  return result;
}

/* ==== merit_cmd05  [tier=DISPATCH size=324] ==== */
int __fastcall merit_cmd05(void *ctx, struct ta_params *params)
{
  int *v2; // r6
  unsigned int v3; // r7
  int *v4; // r10
  char *v5; // r5
  int v6; // r4
  int result; // r0
  unsigned __int8 *v8; // r9
  int *v9; // r11
  int *v10; // r0
  bool v11; // zf
  int v12; // r3
  int v13; // r7
  int v14; // r0
  __int128 v15; // [sp+8h] [bp-14h] BYREF
  int v16; // [sp+18h] [bp-4h]

  v4 = off_401CE0;
  v5 = (char *)ctx;
  v16 = *off_401CE0;
  v6 = *((_DWORD *)ctx + 4);
  if ( (unsigned int)(v6 - 1) <= 0x3F && (v2 = (int *)off_401DE8, v3 = 257 * v6, *((_BYTE *)off_401DE8 + 257 * v6) != 0) )
  {
    if ( ((int (__fastcall *)(int, char *, int, char *))loc_401348)(
           a1: v6,
           a2: (char *)ctx + 20,
           a3: 4112,
           a4: (char *)ctx + 20) == 0 )
      goto LABEL_8;
    result = 261;
  }
  else
  {
    result = 259;
  }
LABEL_6:
  while ( *v4 != v16 )
  {
    ((void (__fastcall *)(int, int))loc_402110)(a1: result, a2: *v4 - v16);
LABEL_8:
    v8 = (unsigned __int8 *)v2 + v3 + 33;
    if ( *((_DWORD *)v5 + 17) == (*v8
                                | (*((unsigned __int8 *)v2 + v3 + 34) << 8)
                                | ((*((unsigned __int8 *)v2 + v3 + 35) | (*((unsigned __int8 *)v2 + v3 + 36) << 8)) << 16)) )
    {
      if ( merit_memcmp_be(a1: (unsigned int *)off_401CE4, a2: (unsigned int *)v5 + 13, a3: 0x10u) == 0 )
      {
        v3 = *((_DWORD *)v5 + 19);
        v9 = (int *)off_401CE8;
        v10 = nullptr;
        while ( 1 )
        {
          v2 = v10 + 4;
          if ( v10 == (int *)128 )
            break;
          v11 = merit_memcmp_be(a1: (unsigned int *)((char *)v9 + (_DWORD)v10), a2: (unsigned int *)v5 + 20, a3: v3) == 0;
          v10 = v2;
          if ( v11 )
          {
            v12 = *((_DWORD *)v5 + 10);
            v2 = *((int **)v5 + 11);
            v13 = *((_DWORD *)v5 + 12);
            *((_DWORD *)v5 + 1038) = *((_DWORD *)v5 + 9);
            *((_DWORD *)v5 + 1039) = v12;
            *((_DWORD *)v5 + 1040) = v2;
            *((_DWORD *)v5 + 1041) = v13;
            *((_DWORD *)v5 + 1042) = dword_401CEC;
            *((_DWORD *)v5 + 1037) = 20;
            merit_lib_zero_fill_words(result: (_DWORD *)v5 + 1043, a2: 0xFD8u);
            v5 += 4132;
            v3 = (unsigned int)&v15;
            if ( ((int (__fastcall *)(char *, int, __int128 *, int))loc_40130C)(a1: v5, a2: 4096, a3: &v15, a4: v6) != 0 )
            {
              result = 266;
            }
            else
            {
              *(_OWORD *)v5 = v15;
              v5 += 16;
              v14 = ((*v8)++ | (v8[1] << 8) | ((v8[2] | (v8[3] << 8)) << 16)) + 1;
              v8[2] = BYTE2(v14);
              v8[3] = HIBYTE(v14);
              v8[1] = BYTE1(v14);
              result = 0;
            }
            goto LABEL_6;
          }
        }
      }
      result = 262;
    }
    else
    {
      result = 260;
    }
  }
  return result;
}

/* ==== merit_cmd05__h2  [tier=MNEM size=36] ==== */
int merit_cmd05__h2()
{
  _DWORD v5[12]; // [sp+8h] [bp-78h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x20u);
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_cmd06  [tier=MNEM size=44] ==== */
int __fastcall merit_cmd06(void *ctx, struct ta_params *params)
{
  int v2; // r0
  int v3; // r0

  v2 = *((_DWORD *)ctx + 4);
  if ( (unsigned int)(v2 - 1) > 0x3F )
    return 259;
  v3 = 257 * v2;
  if ( *((_BYTE *)off_401DE8 + v3) == 0 )
    return 259;
  if ( *((_BYTE *)off_401DE8 + v3) == 1 )
    merit_lib_zero_fill_bytes(result: (_BYTE *)off_401DE8 + v3, a2: 0x101u);
  return 0;
}

/* ==== merit_lib_thunk_tailjump  [tier=EXACT size=4] ==== */
void merit_lib_thunk_tailjump()
{
  JUMPOUT(0x401702);
}

/* ==== merit_lib_zero_fill_bytes  [tier=EXACT size=68] ==== */
_BYTE *__fastcall merit_lib_zero_fill_bytes(_BYTE *result, unsigned int a2)
{
  int v2; // r12
  _BYTE *v3; // r0

  if ( a2 >= 4 )
  {
    if ( ((unsigned __int8)result & 3) != 0 )
    {
      v2 = 4 - ((unsigned __int8)result & 3);
      if ( v2 != 2 )
        *result++ = 0;
      if ( v2 >= 2 )
        *(_WORD *)result = 0;
    }
    JUMPOUT(0x401128);
  }
  if ( __CFSHL__(a2, 31) )
  {
    *result = 0;
    v3 = result + 1;
    *v3 = 0;
    result = v3 + 1;
  }
  if ( (a2 & 1) != 0 )
    *result++ = 0;
  return result;
}

/* ==== merit_lib_zero_fill_words  [tier=EXACT size=78] ==== */
_DWORD *__fastcall merit_lib_zero_fill_words(_DWORD *result, unsigned int a2)
{
  bool v2; // cf
  unsigned int v3; // r1
  _DWORD *v4; // r0
  int v5; // r1
  int v6; // r1

  v2 = a2 >= 0x20;
  v3 = a2 - 32;
  do
  {
    if ( !v2 )
      break;
    *result = 0;
    result[1] = 0;
    result[2] = 0;
    result[3] = 0;
    v4 = result + 4;
    *v4 = 0;
    v4[1] = 0;
    v4[2] = 0;
    v4[3] = 0;
    result = v4 + 4;
    v2 = v3 >= 0x20;
    v3 -= 32;
  }
  while ( v2 );
  v2 = __CFSHL__(v3, 28);
  v5 = v3 << 28;
  if ( v2 )
  {
    *result = 0;
    result[1] = 0;
    result[2] = 0;
    result[3] = 0;
    result += 4;
  }
  if ( v5 < 0 )
  {
    *result = 0;
    result[1] = 0;
    result += 2;
  }
  v2 = __CFSHL__(v5, 2);
  v6 = 4 * v5;
  if ( v2 )
    *result++ = 0;
  if ( v6 != 0 )
  {
    if ( v6 < 0 )
    {
      *(_WORD *)result = 0;
      result = (_DWORD *)((char *)result + 2);
    }
    if ( (v6 & 0x40000000) != 0 )
    {
      *(_BYTE *)result = 0;
      return (_DWORD *)((char *)result + 1);
    }
  }
  return result;
}

/* ==== merit_memcmp_be  [tier=EXACT size=88] ==== */
int __fastcall merit_memcmp_be(unsigned int *a1, unsigned int *a2, unsigned int a3)
{
  unsigned int v3; // r4
  unsigned int v4; // r3
  int v6; // r3
  int v7; // t1
  int v8; // t1
  int v9; // r3
  int v10; // r3
  int v11; // t1
  int v12; // t1

  if ( ((unsigned int)a1 | (unsigned int)a2) << 30 == 0 )
  {
    while ( a3 >= 4 )
    {
      v3 = *a1++;
      v4 = *a2++;
      a3 -= 4;
      if ( v3 != v4 )
      {
        if ( bswap32(v3) <= bswap32(v4) )
          return -1;
        else
          return 1;
      }
    }
  }
  if ( a3 == 0 )
    return 0;
  if ( a3 << 31 == 0 )
    goto LABEL_11;
  ++a3;
  do
  {
    v11 = *(unsigned __int8 *)a1;
    a1 = (unsigned int *)((char *)a1 + 1);
    v10 = v11;
    v12 = *(unsigned __int8 *)a2;
    a2 = (unsigned int *)((char *)a2 + 1);
    v9 = v10 - v12;
    if ( v9 != 0 )
      break;
    a3 -= 2;
    if ( a3 == 0 )
      break;
LABEL_11:
    v7 = *(unsigned __int8 *)a1;
    a1 = (unsigned int *)((char *)a1 + 1);
    v6 = v7;
    v8 = *(unsigned __int8 *)a2;
    a2 = (unsigned int *)((char *)a2 + 1);
    v9 = v6 - v8;
  }
  while ( v9 == 0 );
  return v9;
}

/* ==== merit_sysdrv_rpc_1  [tier=MNEM size=60] ==== */
int merit_sysdrv_rpc_1()
{
  _DWORD v5[12]; // [sp+8h] [bp-78h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x20u);
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_sysdrv_rpc_10  [tier=EXACT size=52] ==== */
int merit_sysdrv_rpc_10()
{
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_sysdrv_rpc_200  [tier=SVCOP size=32] ==== */
int merit_sysdrv_rpc_200()
{
  _DWORD v5[6]; // [sp+0h] [bp-18h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x18u);
  __asm { SVC 0xF2 }
  return 2;
}

/* ==== merit_sysdrv_rpc_201  [tier=SVCOP size=32] ==== */
int merit_sysdrv_rpc_201()
{
  _DWORD v5[6]; // [sp+0h] [bp-18h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x18u);
  __asm { SVC 0xF2 }
  return 2;
}

/* ==== merit_sysdrv_rpc_3  [tier=SVCOP size=42] ==== */
int merit_sysdrv_rpc_3()
{
  _DWORD v5[12]; // [sp+8h] [bp-78h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x20u);
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_sysdrv_rpc_30  [tier=MNEM size=50] ==== */
int merit_sysdrv_rpc_30()
{
  _DWORD v5[12]; // [sp+8h] [bp+8h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x20u);
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_sysdrv_rpc_31  [tier=MNEM size=38] ==== */
int merit_sysdrv_rpc_31()
{
  _DWORD v5[12]; // [sp+8h] [bp-78h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x20u);
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_sysdrv_rpc_33  [tier=MNEM size=52] ==== */
int merit_sysdrv_rpc_33()
{
  _DWORD v5[10]; // [sp+10h] [bp+10h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x18u);
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_sysdrv_rpc_35  [tier=SVCOP size=42] ==== */
int merit_sysdrv_rpc_35()
{
  _DWORD v5[28]; // [sp+10h] [bp-70h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x18u);
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_sysdrv_rpc_9  [tier=EXACT size=64] ==== */
int merit_sysdrv_rpc_9()
{
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_sysdrv_rpc_E  [tier=MNEM size=46] ==== */
int merit_sysdrv_rpc_E()
{
  _DWORD v5[10]; // [sp+10h] [bp+10h] BYREF

  merit_lib_zero_fill_words(result: v5, a2: 0x18u);
  __asm { SVC 0xF2 }
  return 1;
}

/* ==== merit_ta_main_loop  [tier=EXACT size=148] ==== */
void __fastcall __noreturn merit_ta_main_loop(int *a1)
{
  int v6; // r1
  void (__cdecl *v7)(); // r12

  while ( 1 )
  {
    __asm { SVC 0xF0 }
    v6 = *a1;
    if ( *a1 == 1 )
    {
      v7 = (void (__cdecl *)())merit_TA_CreateEntryPoint;
    }
    else
    {
      switch ( v6 )
      {
        case 2:
          v7 = (void (__cdecl *)())off_40211C;
          break;
        case 3:
          v7 = (void (__cdecl *)())off_402120;
          break;
        case 4:
          v7 = (void (__cdecl *)())off_402124;
          break;
        case 5:
          v7 = (void (__cdecl *)())off_402128;
          break;
        default:
          while ( 1 )
            ;
      }
    }
    v7();
    __asm { SVC 0xF1 }
  }
}

/* ==== nullsub_3  [tier=EXACT size=2] ==== */
void nullsub_3()
{
  ;
}