attempt to fix build

[pcsx_rearmed.git] / deps / libchdr / deps / lzma-22.01 / src / Bra.c

/* Bra.c -- Converters for RISC code\r
2021-02-09 : Igor Pavlov : Public domain */\r
\r
#include "Precomp.h"\r
\r
#include "CpuArch.h"\r
#include "Bra.h"\r
\r
SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)\r
{\r
  Byte *p;\r
  const Byte *lim;\r
  size &= ~(size_t)3;\r
  ip += 4;\r
  p = data;\r
  lim = data + size;\r
\r
  if (encoding)\r
\r
  for (;;)\r
  {\r
    for (;;)\r
    {\r
      if (p >= lim)\r
        return (SizeT)(p - data);\r
      p += 4;\r
      if (p[-1] == 0xEB)\r
        break;\r
    }\r
    {\r
      UInt32 v = GetUi32(p - 4);\r
      v <<= 2;\r
        v += ip + (UInt32)(p - data);\r
      v >>= 2;\r
      v &= 0x00FFFFFF;\r
      v |= 0xEB000000;\r
      SetUi32(p - 4, v);\r
    }\r
  }\r
\r
  for (;;)\r
  {\r
    for (;;)\r
    {\r
      if (p >= lim)\r
        return (SizeT)(p - data);\r
      p += 4;\r
      if (p[-1] == 0xEB)\r
        break;\r
    }\r
    {\r
      UInt32 v = GetUi32(p - 4);\r
      v <<= 2;\r
        v -= ip + (UInt32)(p - data);\r
      v >>= 2;\r
      v &= 0x00FFFFFF;\r
      v |= 0xEB000000;\r
      SetUi32(p - 4, v);\r
    }\r
  }\r
}\r
\r
\r
SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)\r
{\r
  Byte *p;\r
  const Byte *lim;\r
  size &= ~(size_t)1;\r
  p = data;\r
  lim = data + size - 4;\r
\r
  if (encoding)\r
  \r
  for (;;)\r
  {\r
    UInt32 b1;\r
    for (;;)\r
    {\r
      UInt32 b3;\r
      if (p > lim)\r
        return (SizeT)(p - data);\r
      b1 = p[1];\r
      b3 = p[3];\r
      p += 2;\r
      b1 ^= 8;\r
      if ((b3 & b1) >= 0xF8)\r
        break;\r
    }\r
    {\r
      UInt32 v =\r
             ((UInt32)b1 << 19)\r
          + (((UInt32)p[1] & 0x7) << 8)\r
          + (((UInt32)p[-2] << 11))\r
          + (p[0]);\r
\r
      p += 2;\r
      {\r
        UInt32 cur = (ip + (UInt32)(p - data)) >> 1;\r
          v += cur;\r
      }\r
\r
      p[-4] = (Byte)(v >> 11);\r
      p[-3] = (Byte)(0xF0 | ((v >> 19) & 0x7));\r
      p[-2] = (Byte)v;\r
      p[-1] = (Byte)(0xF8 | (v >> 8));\r
    }\r
  }\r
  \r
  for (;;)\r
  {\r
    UInt32 b1;\r
    for (;;)\r
    {\r
      UInt32 b3;\r
      if (p > lim)\r
        return (SizeT)(p - data);\r
      b1 = p[1];\r
      b3 = p[3];\r
      p += 2;\r
      b1 ^= 8;\r
      if ((b3 & b1) >= 0xF8)\r
        break;\r
    }\r
    {\r
      UInt32 v =\r
             ((UInt32)b1 << 19)\r
          + (((UInt32)p[1] & 0x7) << 8)\r
          + (((UInt32)p[-2] << 11))\r
          + (p[0]);\r
\r
      p += 2;\r
      {\r
        UInt32 cur = (ip + (UInt32)(p - data)) >> 1;\r
          v -= cur;\r
      }\r
\r
      /*\r
      SetUi16(p - 4, (UInt16)(((v >> 11) & 0x7FF) | 0xF000));\r
      SetUi16(p - 2, (UInt16)(v | 0xF800));\r
      */\r
      \r
      p[-4] = (Byte)(v >> 11);\r
      p[-3] = (Byte)(0xF0 | ((v >> 19) & 0x7));\r
      p[-2] = (Byte)v;\r
      p[-1] = (Byte)(0xF8 | (v >> 8));\r
    }\r
  }\r
}\r
\r
\r
SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)\r
{\r
  Byte *p;\r
  const Byte *lim;\r
  size &= ~(size_t)3;\r
  ip -= 4;\r
  p = data;\r
  lim = data + size;\r
\r
  for (;;)\r
  {\r
    for (;;)\r
    {\r
      if (p >= lim)\r
        return (SizeT)(p - data);\r
      p += 4;\r
      /* if ((v & 0xFC000003) == 0x48000001) */\r
      if ((p[-4] & 0xFC) == 0x48 && (p[-1] & 3) == 1)\r
        break;\r
    }\r
    {\r
      UInt32 v = GetBe32(p - 4);\r
      if (encoding)\r
        v += ip + (UInt32)(p - data);\r
      else\r
        v -= ip + (UInt32)(p - data);\r
      v &= 0x03FFFFFF;\r
      v |= 0x48000000;\r
      SetBe32(p - 4, v);\r
    }\r
  }\r
}\r
\r
\r
SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)\r
{\r
  Byte *p;\r
  const Byte *lim;\r
  size &= ~(size_t)3;\r
  ip -= 4;\r
  p = data;\r
  lim = data + size;\r
\r
  for (;;)\r
  {\r
    for (;;)\r
    {\r
      if (p >= lim)\r
        return (SizeT)(p - data);\r
      /*\r
      v = GetBe32(p);\r
      p += 4;\r
      m = v + ((UInt32)5 << 29);\r
      m ^= (UInt32)7 << 29;\r
      m += (UInt32)1 << 22;\r
      if ((m & ((UInt32)0x1FF << 23)) == 0)\r
        break;\r
      */\r
      p += 4;\r
      if ((p[-4] == 0x40 && (p[-3] & 0xC0) == 0) ||\r
          (p[-4] == 0x7F && (p[-3] >= 0xC0)))\r
        break;\r
    }\r
    {\r
      UInt32 v = GetBe32(p - 4);\r
      v <<= 2;\r
      if (encoding)\r
        v += ip + (UInt32)(p - data);\r
      else\r
        v -= ip + (UInt32)(p - data);\r
      \r
      v &= 0x01FFFFFF;\r
      v -= (UInt32)1 << 24;\r
      v ^= 0xFF000000;\r
      v >>= 2;\r
      v |= 0x40000000;\r
      SetBe32(p - 4, v);\r
    }\r
  }\r
}\r