obligatory forgotten android fixup

[pcsx_rearmed.git] / deps / libchdr / deps / lzma-22.01 / src / BraIA64.c

/* BraIA64.c -- Converter for IA-64 code\r
2017-01-26 : Igor Pavlov : Public domain */\r
\r
#include "Precomp.h"\r
\r
#include "CpuArch.h"\r
#include "Bra.h"\r
\r
SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)\r
{\r
  SizeT i;\r
  if (size < 16)\r
    return 0;\r
  size -= 16;\r
  i = 0;\r
  do\r
  {\r
    unsigned m = ((UInt32)0x334B0000 >> (data[i] & 0x1E)) & 3;\r
    if (m)\r
    {\r
      m++;\r
      do\r
      {\r
        Byte *p = data + (i + (size_t)m * 5 - 8);\r
        if (((p[3] >> m) & 15) == 5\r
            && (((p[-1] | ((UInt32)p[0] << 8)) >> m) & 0x70) == 0)\r
        {\r
          unsigned raw = GetUi32(p);\r
          unsigned v = raw >> m;\r
          v = (v & 0xFFFFF) | ((v & (1 << 23)) >> 3);\r
          \r
          v <<= 4;\r
          if (encoding)\r
            v += ip + (UInt32)i;\r
          else\r
            v -= ip + (UInt32)i;\r
          v >>= 4;\r
          \r
          v &= 0x1FFFFF;\r
          v += 0x700000;\r
          v &= 0x8FFFFF;\r
          raw &= ~((UInt32)0x8FFFFF << m);\r
          raw |= (v << m);\r
          SetUi32(p, raw);\r
        }\r
      }\r
      while (++m <= 4);\r
    }\r
    i += 16;\r
  }\r
  while (i <= size);\r
  return i;\r
}\r