mirror of
https://github.com/ZDoom/Raze.git
synced 2024-11-15 17:01:28 +00:00
718112a8fe
Currently none of these is being used, but eventually they will, once more code gets ported over. So it's better to have them right away and avoid editing the project file too much, only to revert that later.
53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/* BraIA64.c -- Converter for IA-64 code
|
|
2017-01-26 : Igor Pavlov : Public domain */
|
|
|
|
#include "Precomp.h"
|
|
|
|
#include "CpuArch.h"
|
|
#include "Bra.h"
|
|
|
|
SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
|
|
{
|
|
SizeT i;
|
|
if (size < 16)
|
|
return 0;
|
|
size -= 16;
|
|
i = 0;
|
|
do
|
|
{
|
|
unsigned m = ((UInt32)0x334B0000 >> (data[i] & 0x1E)) & 3;
|
|
if (m)
|
|
{
|
|
m++;
|
|
do
|
|
{
|
|
Byte *p = data + (i + (size_t)m * 5 - 8);
|
|
if (((p[3] >> m) & 15) == 5
|
|
&& (((p[-1] | ((UInt32)p[0] << 8)) >> m) & 0x70) == 0)
|
|
{
|
|
unsigned raw = GetUi32(p);
|
|
unsigned v = raw >> m;
|
|
v = (v & 0xFFFFF) | ((v & (1 << 23)) >> 3);
|
|
|
|
v <<= 4;
|
|
if (encoding)
|
|
v += ip + (UInt32)i;
|
|
else
|
|
v -= ip + (UInt32)i;
|
|
v >>= 4;
|
|
|
|
v &= 0x1FFFFF;
|
|
v += 0x700000;
|
|
v &= 0x8FFFFF;
|
|
raw &= ~((UInt32)0x8FFFFF << m);
|
|
raw |= (v << m);
|
|
SetUi32(p, raw);
|
|
}
|
|
}
|
|
while (++m <= 4);
|
|
}
|
|
i += 16;
|
|
}
|
|
while (i <= size);
|
|
return i;
|
|
}
|