void
swap_m68k_thread_state_regs(
struct m68k_thread_state_regs *cpu,
enum NXByteOrder target_byte_sex)
{
uint32_t i;
for(i = 0; i < 8; i++)
cpu->dreg[i] = OSSwapInt32(cpu->dreg[i]);
for(i = 0; i < 8; i++)
cpu->areg[i] = OSSwapInt32(cpu->areg[i]);
cpu->pad0 = OSSwapInt16(cpu->pad0);
cpu->sr = OSSwapInt16(cpu->sr);
cpu->pc = OSSwapInt32(cpu->pc);
}
PseudoAddressSpace::PseudoAddressSpace( Device& userclient, UserObjectHandle inKernAddrSpaceRef,
void* inBuffer, UInt32 inBufferSize, void* inBackingStore, void* inRefCon)
: IOFireWireIUnknown( reinterpret_cast<const IUnknownVTbl &>( sInterface ) ),
mNotifyIsOn(false),
mWriter( nil ),
mReader( nil ),
mSkippedPacketHandler( nil ),
mUserClient(userclient),
mKernAddrSpaceRef(inKernAddrSpaceRef),
mBuffer((char*)inBuffer),
mBufferSize(inBufferSize),
mBackingStore(inBackingStore),
mRefCon(inRefCon)
{
userclient.AddRef() ;
mPendingLocks = ::CFDictionaryCreateMutable( kCFAllocatorDefault, 0, NULL, NULL ) ;
if (!mPendingLocks)
throw kIOReturnNoMemory ;
AddressSpaceInfo info ;
IOReturn error ;
uint32_t outputCnt = 0;
size_t outputStructSize = sizeof( info ) ;
const uint64_t inputs[1]={(const uint64_t)mKernAddrSpaceRef};
error = IOConnectCallMethod(mUserClient.GetUserClientConnection(),
kPseudoAddrSpace_GetFWAddrInfo,
inputs,1,
NULL,0,
NULL,&outputCnt,
&info,&outputStructSize);
if (error)
{
throw error ;
}
#ifndef __LP64__
ROSETTA_ONLY(
{
info.address.nodeID = OSSwapInt16( info.address.nodeID );
info.address.addressHi = OSSwapInt16( info.address.addressHi );
info.address.addressLo = OSSwapInt32( info.address.addressLo );
}
);
void
swap_nlist_64(
struct nlist_64 *symbols,
uint32_t nsymbols,
enum NXByteOrder target_byte_sex)
{
uint32_t i;
for(i = 0; i < nsymbols; i++){
symbols[i].n_un.n_strx = OSSwapInt32(symbols[i].n_un.n_strx);
/* n_type */
/* n_sect */
symbols[i].n_desc = OSSwapInt16(symbols[i].n_desc);
symbols[i].n_value = OSSwapInt64(symbols[i].n_value);
}
}
/*
* utf8_encodelen - Calculate the UTF-8 encoding length
*
* This function takes a Unicode input string, ucsp, of ucslen bytes
* and calculates the size of the UTF-8 output in bytes (not including
* a NULL termination byte). The string must reside in kernel memory.
*
* If '/' chars are possible in the Unicode input then an alternate
* (replacement) char should be provided in altslash.
*
* FLAGS
* UTF_REVERSE_ENDIAN: Unicode byte order is opposite current runtime
*
* UTF_BIG_ENDIAN: Unicode byte order is always big endian
*
* UTF_LITTLE_ENDIAN: Unicode byte order is always little endian
*
* UTF_DECOMPOSED: generate fully decomposed output
*
* UTF_PRECOMPOSED is ignored since utf8_encodestr doesn't support it
*
* ERRORS
* None
*/
size_t
utf8_encodelen(const u_int16_t * ucsp, size_t ucslen, u_int16_t altslash, int flags)
{
u_int16_t ucs_ch;
u_int16_t * chp = NULL;
u_int16_t sequence[8];
int extra = 0;
int charcnt;
int swapbytes = (flags & UTF_REVERSE_ENDIAN);
int decompose = (flags & UTF_DECOMPOSED);
size_t len;
charcnt = (/*SG*/int)(ucslen / 2);
len = 0;
while (charcnt-- > 0) {
if (extra > 0) {
--extra;
ucs_ch = *chp++;
} else {
ucs_ch = *ucsp++;
if (swapbytes) {
ucs_ch = OSSwapInt16(ucs_ch);
}
if (ucs_ch == '/') {
ucs_ch = altslash ? altslash : '_';
} else if (ucs_ch == '\0') {
ucs_ch = UCS_ALT_NULL;
} else if (decompose && unicode_decomposeable(ucs_ch)) {
extra = unicode_decompose(ucs_ch, sequence) - 1;
charcnt += extra;
ucs_ch = sequence[0];
chp = &sequence[1];
}
}
len += UNICODE_TO_UTF8_LEN(ucs_ch);
}
return (len);
}
/*
* utf8_encodestr - Encodes a Unicode string to UTF-8
*
* NOTES:
* The resulting UTF-8 string is NULL terminated.
*
* If '/' chars are allowed on disk then an alternate
* (replacement) char must be provided in altslash.
*
* input flags:
* UTF_REVERSE_ENDIAN: Unicode byteorder is opposite current runtime
*
* UTF_BIG_ENDIAN: Unicode byte order is always big endian
*
* UTF_LITTLE_ENDIAN: Unicode byte order is always little endian
*
* UTF_DECOMPOSED: generate fully decomposed output
*
* UTF_NO_NULL_TERM: don't add NULL termination to UTF-8 output
*
* result:
* ENAMETOOLONG: Name didn't fit; only buflen bytes were encoded
*
* EINVAL: Illegal char found; char was replaced by an '_'.
*/
static int
utf8_encodestr(const u_int16_t * ucsp, size_t ucslen, u_int8_t * utf8p,
size_t * utf8len, size_t buflen, u_int16_t altslash, int flags)
{
u_int8_t * bufstart;
u_int8_t * bufend;
u_int16_t ucs_ch;
u_int16_t * chp = NULL;
u_int16_t sequence[8];
int extra = 0;
int charcnt;
int swapbytes = (flags & UTF_REVERSE_ENDIAN);
int nullterm = ((flags & UTF_NO_NULL_TERM) == 0);
int decompose = (flags & UTF_DECOMPOSED);
int sfmconv = (flags & UTF_SFM_CONVERSIONS);
int result = 0;
bufstart = utf8p;
bufend = bufstart + buflen;
if (nullterm)
--bufend;
charcnt = (/*SG*/int)(ucslen / 2);
while (charcnt-- > 0) {
if (extra > 0) {
--extra;
ucs_ch = *chp++;
} else {
ucs_ch = swapbytes ? OSSwapInt16(*ucsp++) : *ucsp++;
if (decompose && unicode_decomposeable(ucs_ch)) {
extra = unicode_decompose(ucs_ch, sequence) - 1;
charcnt += extra;
ucs_ch = sequence[0];
chp = &sequence[1];
}
}
/* Slash and NULL are not permitted */
if (ucs_ch == '/') {
if (altslash)
ucs_ch = altslash;
else {
ucs_ch = '_';
result = EINVAL;
}
} else if (ucs_ch == '\0') {
ucs_ch = UCS_ALT_NULL;
}
if (ucs_ch < 0x0080) {
if (utf8p >= bufend) {
result = ENAMETOOLONG;
break;
}
*utf8p++ = (SG_uint8)ucs_ch;
} else if (ucs_ch < 0x800) {
if ((utf8p + 1) >= bufend) {
result = ENAMETOOLONG;
break;
}
*utf8p++ = 0xc0 | (SG_uint8)(ucs_ch >> 6);
*utf8p++ = 0x80 | (SG_uint8)(0x3f & ucs_ch);
} else {
/* These chars never valid Unicode. */
if (ucs_ch == 0xFFFE || ucs_ch == 0xFFFF) {
result = EINVAL;
break;
}
/* Combine valid surrogate pairs */
if (ucs_ch >= SP_HIGH_FIRST && ucs_ch <= SP_HIGH_LAST
&& charcnt > 0) {
u_int16_t ch2;
u_int32_t pair;
ch2 = swapbytes ? OSSwapInt16(*ucsp) : *ucsp;
if (ch2 >= SP_LOW_FIRST && ch2 <= SP_LOW_LAST) {
pair = ((ucs_ch - SP_HIGH_FIRST) << SP_HALF_SHIFT)
+ (ch2 - SP_LOW_FIRST) + SP_HALF_BASE;
if ((utf8p + 3) >= bufend) {
result = ENAMETOOLONG;
break;
}
--charcnt;
++ucsp;
*utf8p++ = 0xf0 | (SG_uint8)(pair >> 18);
*utf8p++ = 0x80 | (SG_uint8)(0x3f & (pair >> 12));
*utf8p++ = 0x80 | (SG_uint8)(0x3f & (pair >> 6));
*utf8p++ = 0x80 | (SG_uint8)(0x3f & pair);
continue;
}
} else if (sfmconv) {
uint16_t AJ_ByteSwap16(uint16_t x)
{
return OSSwapInt16(x);
}
void Float32ToNativeInt16_X86( const Float32 *src, SInt16 *dst, unsigned int numToConvert )
{
const float *src0 = src;
int16_t *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 8) {
// vector -- requires 8+ samples
ROUNDMODE_NEG_INF
const __m128 vround = (const __m128) { 0.5f, 0.5f, 0.5f, 0.5f };
const __m128 vmin = (const __m128) { -32768.0f, -32768.0f, -32768.0f, -32768.0f };
const __m128 vmax = (const __m128) { 32767.0f, 32767.0f, 32767.0f, 32767.0f };
const __m128 vscale = (const __m128) { 32768.0f, 32768.0f, 32768.0f, 32768.0f };
__m128 vf0, vf1;
__m128i vi0, vi1, vpack0;
#define F32TOLE16 \
vf0 = _mm_mul_ps(vf0, vscale); \
vf1 = _mm_mul_ps(vf1, vscale); \
vf0 = _mm_add_ps(vf0, vround); \
vf1 = _mm_add_ps(vf1, vround); \
vf0 = _mm_max_ps(vf0, vmin); \
vf1 = _mm_max_ps(vf1, vmin); \
vf0 = _mm_min_ps(vf0, vmax); \
vf1 = _mm_min_ps(vf1, vmax); \
vi0 = _mm_cvtps_epi32(vf0); \
vi1 = _mm_cvtps_epi32(vf1); \
vpack0 = _mm_packs_epi32(vi0, vi1);
int falign = (uintptr_t)src & 0xF;
int ialign = (uintptr_t)dst & 0xF;
if (falign != 0 || ialign != 0) {
// do one unaligned conversion
vf0 = _mm_loadu_ps(src);
vf1 = _mm_loadu_ps(src+4);
F32TOLE16
_mm_storeu_si128((__m128i *)dst, vpack0);
// advance such that the destination ints are aligned
unsigned int n = (16 - ialign) / 2;
src += n;
dst += n;
count -= n;
falign = (uintptr_t)src & 0xF;
if (falign != 0) {
// unaligned loads, aligned stores
while (count >= 8) {
vf0 = _mm_loadu_ps(src);
vf1 = _mm_loadu_ps(src+4);
F32TOLE16
_mm_store_si128((__m128i *)dst, vpack0);
src += 8;
dst += 8;
count -= 8;
}
goto VectorCleanup;
}
}
// aligned loads, aligned stores
while (count >= 8) {
vf0 = _mm_load_ps(src);
vf1 = _mm_load_ps(src+4);
F32TOLE16
_mm_store_si128((__m128i *)dst, vpack0);
src += 8;
dst += 8;
count -= 8;
}
VectorCleanup:
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 8;
dst = dst0 + numToConvert - 8;
vf0 = _mm_loadu_ps(src);
vf1 = _mm_loadu_ps(src+4);
F32TOLE16
_mm_storeu_si128((__m128i *)dst, vpack0);
}
RESTORE_ROUNDMODE
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 2147483648.0, round = 32768.0, max32 = 2147483648.0 - 1.0 - 32768.0, min32 = 0.;
ROUNDMODE_NEG_INF
while (count-- > 0) {
double f0 = *src++;
f0 = f0 * scale + round;
SInt32 i0 = FloatToInt(f0, min32, max32);
i0 >>= 16;
*dst++ = i0;
}
RESTORE_ROUNDMODE
}
}
// ===================================================================================================
void Float32ToSwapInt16_X86( const Float32 *src, SInt16 *dst, unsigned int numToConvert )
{
const float *src0 = src;
int16_t *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 8) {
// vector -- requires 8+ samples
ROUNDMODE_NEG_INF
const __m128 vround = (const __m128) { 0.5f, 0.5f, 0.5f, 0.5f };
const __m128 vmin = (const __m128) { -32768.0f, -32768.0f, -32768.0f, -32768.0f };
const __m128 vmax = (const __m128) { 32767.0f, 32767.0f, 32767.0f, 32767.0f };
const __m128 vscale = (const __m128) { 32768.0f, 32768.0f, 32768.0f, 32768.0f };
__m128 vf0, vf1;
__m128i vi0, vi1, vpack0;
#define F32TOBE16 \
vf0 = _mm_mul_ps(vf0, vscale); \
vf1 = _mm_mul_ps(vf1, vscale); \
vf0 = _mm_add_ps(vf0, vround); \
vf1 = _mm_add_ps(vf1, vround); \
vf0 = _mm_max_ps(vf0, vmin); \
vf1 = _mm_max_ps(vf1, vmin); \
vf0 = _mm_min_ps(vf0, vmax); \
vf1 = _mm_min_ps(vf1, vmax); \
vi0 = _mm_cvtps_epi32(vf0); \
vi1 = _mm_cvtps_epi32(vf1); \
vpack0 = _mm_packs_epi32(vi0, vi1); \
vpack0 = byteswap16(vpack0);
int falign = (uintptr_t)src & 0xF;
int ialign = (uintptr_t)dst & 0xF;
if (falign != 0 || ialign != 0) {
// do one unaligned conversion
vf0 = _mm_loadu_ps(src);
vf1 = _mm_loadu_ps(src+4);
F32TOBE16
_mm_storeu_si128((__m128i *)dst, vpack0);
// and advance such that the destination ints are aligned
unsigned int n = (16 - ialign) / 2;
src += n;
dst += n;
count -= n;
falign = (uintptr_t)src & 0xF;
if (falign != 0) {
// unaligned loads, aligned stores
while (count >= 8) {
vf0 = _mm_loadu_ps(src);
vf1 = _mm_loadu_ps(src+4);
F32TOBE16
_mm_store_si128((__m128i *)dst, vpack0);
src += 8;
dst += 8;
count -= 8;
}
goto VectorCleanup;
}
}
// aligned loads, aligned stores
while (count >= 8) {
vf0 = _mm_load_ps(src);
vf1 = _mm_load_ps(src+4);
F32TOBE16
_mm_store_si128((__m128i *)dst, vpack0);
src += 8;
dst += 8;
count -= 8;
}
VectorCleanup:
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 8;
dst = dst0 + numToConvert - 8;
vf0 = _mm_loadu_ps(src);
vf1 = _mm_loadu_ps(src+4);
F32TOBE16
_mm_storeu_si128((__m128i *)dst, vpack0);
}
RESTORE_ROUNDMODE
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 2147483648.0, round = 32768.0, max32 = 2147483648.0 - 1.0 - 32768.0, min32 = 0.;
ROUNDMODE_NEG_INF
while (count-- > 0) {
double f0 = *src++;
f0 = f0 * scale + round;
SInt32 i0 = FloatToInt(f0, min32, max32);
i0 >>= 16;
*dst++ = OSSwapInt16(i0);
}
RESTORE_ROUNDMODE
}
}
// ===================================================================================================
void Float32ToNativeInt32_X86( const Float32 *src, SInt32 *dst, unsigned int numToConvert )
{
const float *src0 = src;
SInt32 *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 4) {
// vector -- requires 4+ samples
ROUNDMODE_NEG_INF
const __m128 vround = (const __m128) { 0.5f, 0.5f, 0.5f, 0.5f };
const __m128 vmin = (const __m128) { -2147483648.0f, -2147483648.0f, -2147483648.0f, -2147483648.0f };
const __m128 vmax = (const __m128) { kMaxFloat32, kMaxFloat32, kMaxFloat32, kMaxFloat32 };
const __m128 vscale = (const __m128) { 2147483648.0f, 2147483648.0f, 2147483648.0f, 2147483648.0f };
__m128 vf0;
__m128i vi0;
#define F32TOLE32(x) \
vf##x = _mm_mul_ps(vf##x, vscale); \
vf##x = _mm_add_ps(vf##x, vround); \
vf##x = _mm_max_ps(vf##x, vmin); \
vf##x = _mm_min_ps(vf##x, vmax); \
vi##x = _mm_cvtps_epi32(vf##x); \
int falign = (uintptr_t)src & 0xF;
int ialign = (uintptr_t)dst & 0xF;
if (falign != 0 || ialign != 0) {
// do one unaligned conversion
vf0 = _mm_loadu_ps(src);
F32TOLE32(0)
_mm_storeu_si128((__m128i *)dst, vi0);
// and advance such that the destination ints are aligned
unsigned int n = (16 - ialign) / 4;
src += n;
dst += n;
count -= n;
falign = (uintptr_t)src & 0xF;
if (falign != 0) {
// unaligned loads, aligned stores
while (count >= 4) {
vf0 = _mm_loadu_ps(src);
F32TOLE32(0)
_mm_store_si128((__m128i *)dst, vi0);
src += 4;
dst += 4;
count -= 4;
}
goto VectorCleanup;
}
}
while (count >= 4) {
vf0 = _mm_load_ps(src);
F32TOLE32(0)
_mm_store_si128((__m128i *)dst, vi0);
src += 4;
dst += 4;
count -= 4;
}
VectorCleanup:
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 4;
dst = dst0 + numToConvert - 4;
vf0 = _mm_loadu_ps(src);
F32TOLE32(0)
_mm_storeu_si128((__m128i *)dst, vi0);
}
RESTORE_ROUNDMODE
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 2147483648.0, round = 0.5, max32 = 2147483648.0 - 1.0 - 0.5, min32 = 0.;
ROUNDMODE_NEG_INF
while (count-- > 0) {
double f0 = *src++;
f0 = f0 * scale + round;
SInt32 i0 = FloatToInt(f0, min32, max32);
*dst++ = i0;
}
RESTORE_ROUNDMODE
}
}
// ===================================================================================================
void Float32ToSwapInt32_X86( const Float32 *src, SInt32 *dst, unsigned int numToConvert )
{
const float *src0 = src;
SInt32 *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 4) {
// vector -- requires 4+ samples
ROUNDMODE_NEG_INF
const __m128 vround = (const __m128) { 0.5f, 0.5f, 0.5f, 0.5f };
const __m128 vmin = (const __m128) { -2147483648.0f, -2147483648.0f, -2147483648.0f, -2147483648.0f };
const __m128 vmax = (const __m128) { kMaxFloat32, kMaxFloat32, kMaxFloat32, kMaxFloat32 };
const __m128 vscale = (const __m128) { 2147483648.0f, 2147483648.0f, 2147483648.0f, 2147483648.0f };
__m128 vf0;
__m128i vi0;
#define F32TOBE32(x) \
vf##x = _mm_mul_ps(vf##x, vscale); \
vf##x = _mm_add_ps(vf##x, vround); \
vf##x = _mm_max_ps(vf##x, vmin); \
vf##x = _mm_min_ps(vf##x, vmax); \
vi##x = _mm_cvtps_epi32(vf##x); \
vi##x = byteswap32(vi##x);
int falign = (uintptr_t)src & 0xF;
int ialign = (uintptr_t)dst & 0xF;
if (falign != 0 || ialign != 0) {
// do one unaligned conversion
vf0 = _mm_loadu_ps(src);
F32TOBE32(0)
_mm_storeu_si128((__m128i *)dst, vi0);
// and advance such that the destination ints are aligned
unsigned int n = (16 - ialign) / 4;
src += n;
dst += n;
count -= n;
falign = (uintptr_t)src & 0xF;
if (falign != 0) {
// unaligned loads, aligned stores
while (count >= 4) {
vf0 = _mm_loadu_ps(src);
F32TOBE32(0)
_mm_store_si128((__m128i *)dst, vi0);
src += 4;
dst += 4;
count -= 4;
}
goto VectorCleanup;
}
}
while (count >= 4) {
vf0 = _mm_load_ps(src);
F32TOBE32(0)
_mm_store_si128((__m128i *)dst, vi0);
src += 4;
dst += 4;
count -= 4;
}
VectorCleanup:
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 4;
dst = dst0 + numToConvert - 4;
vf0 = _mm_loadu_ps(src);
F32TOBE32(0)
_mm_storeu_si128((__m128i *)dst, vi0);
}
RESTORE_ROUNDMODE
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 2147483648.0, round = 0.5, max32 = 2147483648.0 - 1.0 - 0.5, min32 = 0.;
ROUNDMODE_NEG_INF
while (count-- > 0) {
double f0 = *src++;
f0 = f0 * scale + round;
SInt32 i0 = FloatToInt(f0, min32, max32);
*dst++ = OSSwapInt32(i0);
}
RESTORE_ROUNDMODE
}
}
// ===================================================================================================
// ~14 instructions
static inline __m128i Pack32ToLE24(__m128i val, __m128i mask)
{
__m128i store;
val = _mm_srli_si128(val, 1);
store = _mm_and_si128(val, mask);
val = _mm_srli_si128(val, 1);
mask = _mm_slli_si128(mask, 3);
store = _mm_or_si128(store, _mm_and_si128(val, mask));
val = _mm_srli_si128(val, 1);
mask = _mm_slli_si128(mask, 3);
store = _mm_or_si128(store, _mm_and_si128(val, mask));
val = _mm_srli_si128(val, 1);
mask = _mm_slli_si128(mask, 3);
store = _mm_or_si128(store, _mm_and_si128(val, mask));
return store;
}
// marginally faster than scalar
void Float32ToNativeInt24_X86( const Float32 *src, UInt8 *dst, unsigned int numToConvert )
{
const Float32 *src0 = src;
UInt8 *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 6) {
// vector -- requires 6+ samples
ROUNDMODE_NEG_INF
const __m128 vround = (const __m128) { 0.5f, 0.5f, 0.5f, 0.5f };
const __m128 vmin = (const __m128) { -2147483648.0f, -2147483648.0f, -2147483648.0f, -2147483648.0f };
const __m128 vmax = (const __m128) { kMaxFloat32, kMaxFloat32, kMaxFloat32, kMaxFloat32 };
const __m128 vscale = (const __m128) { 2147483648.0f, 2147483648.0f, 2147483648.0f, 2147483648.0f };
__m128i mask = _mm_setr_epi32(0x00FFFFFF, 0, 0, 0);
// it is actually cheaper to copy and shift this mask on the fly than to have 4 of them
__m128i store;
union {
UInt32 i[4];
__m128i v;
} u;
__m128 vf0;
__m128i vi0;
int falign = (uintptr_t)src & 0xF;
if (falign != 0) {
// do one unaligned conversion
vf0 = _mm_loadu_ps(src);
F32TOLE32(0)
store = Pack32ToLE24(vi0, mask);
_mm_storeu_si128((__m128i *)dst, store);
// and advance such that the source floats are aligned
unsigned int n = (16 - falign) / 4;
src += n;
dst += 3*n; // bytes
count -= n;
}
while (count >= 6) {
vf0 = _mm_load_ps(src);
F32TOLE32(0)
store = Pack32ToLE24(vi0, mask);
_mm_storeu_si128((__m128i *)dst, store); // destination always unaligned
src += 4;
dst += 12; // bytes
count -= 4;
}
if (count >= 4) {
vf0 = _mm_load_ps(src);
F32TOLE32(0)
u.v = Pack32ToLE24(vi0, mask);
((UInt32 *)dst)[0] = u.i[0];
((UInt32 *)dst)[1] = u.i[1];
((UInt32 *)dst)[2] = u.i[2];
src += 4;
dst += 12; // bytes
count -= 4;
}
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 4;
dst = dst0 + 3*numToConvert - 12;
vf0 = _mm_loadu_ps(src);
F32TOLE32(0)
u.v = Pack32ToLE24(vi0, mask);
((UInt32 *)dst)[0] = u.i[0];
((UInt32 *)dst)[1] = u.i[1];
((UInt32 *)dst)[2] = u.i[2];
}
RESTORE_ROUNDMODE
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 2147483648.0, round = 0.5, max32 = 2147483648.0 - 1.0 - 0.5, min32 = 0.;
ROUNDMODE_NEG_INF
while (count-- > 0) {
double f0 = *src++;
f0 = f0 * scale + round;
UInt32 i0 = FloatToInt(f0, min32, max32);
dst[0] = (UInt8)(i0 >> 8);
dst[1] = (UInt8)(i0 >> 16);
dst[2] = (UInt8)(i0 >> 24);
dst += 3;
}
RESTORE_ROUNDMODE
}
}
// ===================================================================================================
#pragma mark -
#pragma mark Int -> Float
void NativeInt16ToFloat32_X86( const SInt16 *src, Float32 *dst, unsigned int numToConvert )
{
const SInt16 *src0 = src;
Float32 *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 8) {
// vector -- requires 8+ samples
// convert the 16-bit words to the high word of 32-bit values
#define LEI16TOF32(x, y) \
vi##x = _mm_unpacklo_epi16(zero, vpack##x); \
vi##y = _mm_unpackhi_epi16(zero, vpack##x); \
vf##x = _mm_cvtepi32_ps(vi##x); \
vf##y = _mm_cvtepi32_ps(vi##y); \
vf##x = _mm_mul_ps(vf##x, vscale); \
vf##y = _mm_mul_ps(vf##y, vscale);
const __m128 vscale = (const __m128) { 1.0/2147483648.0f, 1.0/2147483648.0f, 1.0/2147483648.0f, 1.0/2147483648.0f };
const __m128i zero = _mm_setzero_si128();
__m128 vf0, vf1;
__m128i vi0, vi1, vpack0;
int ialign = (uintptr_t)src & 0xF;
int falign = (uintptr_t)dst & 0xF;
if (falign != 0 || ialign != 0) {
// do one unaligned conversion
vpack0 = _mm_loadu_si128((__m128i const *)src);
LEI16TOF32(0, 1)
_mm_storeu_ps(dst, vf0);
_mm_storeu_ps(dst+4, vf1);
// and advance such that the destination floats are aligned
unsigned int n = (16 - falign) / 4;
src += n;
dst += n;
count -= n;
ialign = (uintptr_t)src & 0xF;
if (ialign != 0) {
// unaligned loads, aligned stores
while (count >= 8) {
vpack0 = _mm_loadu_si128((__m128i const *)src);
LEI16TOF32(0, 1)
_mm_store_ps(dst, vf0);
_mm_store_ps(dst+4, vf1);
src += 8;
dst += 8;
count -= 8;
}
goto VectorCleanup;
}
}
// aligned loads, aligned stores
while (count >= 8) {
vpack0 = _mm_load_si128((__m128i const *)src);
LEI16TOF32(0, 1)
_mm_store_ps(dst, vf0);
_mm_store_ps(dst+4, vf1);
src += 8;
dst += 8;
count -= 8;
}
VectorCleanup:
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 8;
dst = dst0 + numToConvert - 8;
vpack0 = _mm_loadu_si128((__m128i const *)src);
LEI16TOF32(0, 1)
_mm_storeu_ps(dst, vf0);
_mm_storeu_ps(dst+4, vf1);
}
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 1./32768.f;
while (count-- > 0) {
SInt16 i = *src++;
double f = (double)i * scale;
*dst++ = f;
}
}
}
// ===================================================================================================
void SwapInt16ToFloat32_X86( const SInt16 *src, Float32 *dst, unsigned int numToConvert )
{
const SInt16 *src0 = src;
Float32 *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 8) {
// vector -- requires 8+ samples
// convert the 16-bit words to the high word of 32-bit values
#define BEI16TOF32 \
vpack0 = byteswap16(vpack0); \
vi0 = _mm_unpacklo_epi16(zero, vpack0); \
vi1 = _mm_unpackhi_epi16(zero, vpack0); \
vf0 = _mm_cvtepi32_ps(vi0); \
vf1 = _mm_cvtepi32_ps(vi1); \
vf0 = _mm_mul_ps(vf0, vscale); \
vf1 = _mm_mul_ps(vf1, vscale);
const __m128 vscale = (const __m128) { 1.0/2147483648.0f, 1.0/2147483648.0f, 1.0/2147483648.0f, 1.0/2147483648.0f };
const __m128i zero = _mm_setzero_si128();
__m128 vf0, vf1;
__m128i vi0, vi1, vpack0;
int ialign = (uintptr_t)src & 0xF;
int falign = (uintptr_t)dst & 0xF;
if (falign != 0 || ialign != 0) {
// do one unaligned conversion
vpack0 = _mm_loadu_si128((__m128i const *)src);
BEI16TOF32
_mm_storeu_ps(dst, vf0);
_mm_storeu_ps(dst+4, vf1);
// and advance such that the destination floats are aligned
unsigned int n = (16 - falign) / 4;
src += n;
dst += n;
count -= n;
ialign = (uintptr_t)src & 0xF;
if (ialign != 0) {
// unaligned loads, aligned stores
while (count >= 8) {
vpack0 = _mm_loadu_si128((__m128i const *)src);
BEI16TOF32
_mm_store_ps(dst, vf0);
_mm_store_ps(dst+4, vf1);
src += 8;
dst += 8;
count -= 8;
}
goto VectorCleanup;
}
}
// aligned loads, aligned stores
while (count >= 8) {
vpack0 = _mm_load_si128((__m128i const *)src);
BEI16TOF32
_mm_store_ps(dst, vf0);
_mm_store_ps(dst+4, vf1);
src += 8;
dst += 8;
count -= 8;
}
VectorCleanup:
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 8;
dst = dst0 + numToConvert - 8;
vpack0 = _mm_loadu_si128((__m128i const *)src);
BEI16TOF32
_mm_storeu_ps(dst, vf0);
_mm_storeu_ps(dst+4, vf1);
}
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 1./32768.f;
while (count-- > 0) {
SInt16 i = *src++;
i = OSSwapInt16(i);
double f = (double)i * scale;
*dst++ = f;
}
}
}
// ===================================================================================================
void NativeInt32ToFloat32_X86( const SInt32 *src, Float32 *dst, unsigned int numToConvert )
{
const SInt32 *src0 = src;
Float32 *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 4) {
// vector -- requires 4+ samples
#define LEI32TOF32(x) \
vf##x = _mm_cvtepi32_ps(vi##x); \
vf##x = _mm_mul_ps(vf##x, vscale); \
const __m128 vscale = (const __m128) { 1.0/2147483648.0f, 1.0/2147483648.0f, 1.0/2147483648.0f, 1.0/2147483648.0f };
__m128 vf0;
__m128i vi0;
int ialign = (uintptr_t)src & 0xF;
int falign = (uintptr_t)dst & 0xF;
if (falign != 0 || ialign != 0) {
// do one unaligned conversion
vi0 = _mm_loadu_si128((__m128i const *)src);
LEI32TOF32(0)
_mm_storeu_ps(dst, vf0);
// and advance such that the destination floats are aligned
unsigned int n = (16 - falign) / 4;
src += n;
dst += n;
count -= n;
ialign = (uintptr_t)src & 0xF;
if (ialign != 0) {
// unaligned loads, aligned stores
while (count >= 4) {
vi0 = _mm_loadu_si128((__m128i const *)src);
LEI32TOF32(0)
_mm_store_ps(dst, vf0);
src += 4;
dst += 4;
count -= 4;
}
goto VectorCleanup;
}
}
// aligned loads, aligned stores
while (count >= 4) {
vi0 = _mm_load_si128((__m128i const *)src);
LEI32TOF32(0)
_mm_store_ps(dst, vf0);
src += 4;
dst += 4;
count -= 4;
}
VectorCleanup:
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 4;
dst = dst0 + numToConvert - 4;
vi0 = _mm_loadu_si128((__m128i const *)src);
LEI32TOF32(0)
_mm_storeu_ps(dst, vf0);
}
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 1./2147483648.0f;
while (count-- > 0) {
SInt32 i = *src++;
double f = (double)i * scale;
*dst++ = f;
}
}
}
// ===================================================================================================
void SwapInt32ToFloat32_X86( const SInt32 *src, Float32 *dst, unsigned int numToConvert )
{
const SInt32 *src0 = src;
Float32 *dst0 = dst;
unsigned int count = numToConvert;
if (count >= 4) {
// vector -- requires 4+ samples
#define BEI32TOF32(x) \
vi##x = byteswap32(vi##x); \
vf##x = _mm_cvtepi32_ps(vi##x); \
vf##x = _mm_mul_ps(vf##x, vscale); \
const __m128 vscale = (const __m128) { 1.0/2147483648.0f, 1.0/2147483648.0f, 1.0/2147483648.0f, 1.0/2147483648.0f };
__m128 vf0;
__m128i vi0;
int ialign = (uintptr_t)src & 0xF;
int falign = (uintptr_t)dst & 0xF;
if (falign != 0 || ialign != 0) {
// do one unaligned conversion
vi0 = _mm_loadu_si128((__m128i const *)src);
BEI32TOF32(0)
_mm_storeu_ps(dst, vf0);
// and advance such that the destination floats are aligned
unsigned int n = (16 - falign) / 4;
src += n;
dst += n;
count -= n;
ialign = (uintptr_t)src & 0xF;
if (ialign != 0) {
// unaligned loads, aligned stores
while (count >= 4) {
vi0 = _mm_loadu_si128((__m128i const *)src);
BEI32TOF32(0)
_mm_store_ps(dst, vf0);
src += 4;
dst += 4;
count -= 4;
}
goto VectorCleanup;
}
}
// aligned loads, aligned stores
while (count >= 4) {
vi0 = _mm_load_si128((__m128i const *)src);
BEI32TOF32(0)
_mm_store_ps(dst, vf0);
src += 4;
dst += 4;
count -= 4;
}
VectorCleanup:
if (count > 0) {
// unaligned cleanup -- just do one unaligned vector at the end
src = src0 + numToConvert - 4;
dst = dst0 + numToConvert - 4;
vi0 = _mm_loadu_si128((__m128i const *)src);
BEI32TOF32(0)
_mm_storeu_ps(dst, vf0);
}
return;
}
// scalar for small numbers of samples
if (count > 0) {
double scale = 1./2147483648.0f;
while (count-- > 0) {
SInt32 i = *src++;
i = OSSwapInt32(i);
double f = (double)i * scale;
*dst++ = f;
}
}
}
IOReturn
AppleUHCIIsochTransferDescriptor::UpdateFrameList(AbsoluteTime timeStamp)
{
UInt32 statFlags;
IOUSBIsocFrame *pFrames;
IOUSBLowLatencyIsocFrame *pLLFrames;
IOReturn frStatus = kIOReturnSuccess;
UInt16 frActualCount = 0;
UInt16 frReqCount;
statFlags = USBToHostLong(GetSharedLogical()->ctrlStatus);
frActualCount = UHCI_TD_GET_ACTLEN(statFlags);
// warning - this method can run at primary interrupt time, which can cause a panic if it logs too much
// USBLog(7, "AppleUHCIIsochTransferDescriptor[%p]::UpdateFrameList statFlags (%x)", this, statFlags);
pFrames = _pFrames;
if (!pFrames) // this will be the case for the dummy TD
return kIOReturnSuccess;
pLLFrames = (IOUSBLowLatencyIsocFrame*)_pFrames;
if (_lowLatency)
{
frReqCount = pLLFrames[_frameIndex].frReqCount;
}
else
{
frReqCount = pFrames[_frameIndex].frReqCount;
}
if (statFlags & kUHCI_TD_ACTIVE)
{
frStatus = kIOUSBNotSent2Err;
}
else if (statFlags & kUHCI_TD_CRCTO)
{
frStatus = kIOReturnNotResponding;
}
else if (statFlags & kUHCI_TD_DBUF) // data buffer (PCI error)
{
if (_pEndpoint->direction == kUSBOut)
frStatus = kIOUSBBufferUnderrunErr;
else
frStatus = kIOUSBBufferOverrunErr;
}
else if (statFlags & kUHCI_TD_BABBLE)
{
if (_pEndpoint->direction == kUSBOut)
frStatus = kIOReturnNotResponding; // babble on OUT. this should never happen
else
frStatus = kIOReturnOverrun;
}
else if (statFlags & kUHCI_TD_STALLED) // if STALL happens on Isoch, it is most likely covered by one of the other bits above
{
frStatus = kIOUSBWrongPIDErr;
}
else
{
if (frActualCount != frReqCount)
{
if (_pEndpoint->direction == kUSBOut)
{
// warning - this method can run at primary interrupt time, which can cause a panic if it logs too much
// USBLog(7, "AppleUHCIIsochTransferDescriptor[%p]::UpdateFrameList - (OUT) reqCount (%d) actCount (%d)", this, frReqCount, frActualCount);
frStatus = kIOUSBBufferUnderrunErr; // this better have generated a DBUF or other error
}
else if (_pEndpoint->direction == kUSBIn)
{
// warning - this method can run at primary interrupt time, which can cause a panic if it logs too much
// USBLog(7, "AppleUHCIIsochTransferDescriptor[%p]::UpdateFrameList - (IN) reqCount (%d) actCount (%d)", this, frReqCount, frActualCount);
frStatus = kIOReturnUnderrun; // benign error
}
}
}
if (alignBuffer && alignBuffer->userBuffer && alignBuffer->vaddr && (_pEndpoint->direction == kUSBIn))
{
// i can't log in here because this is called at interrupt time
// i know that this is OK for Low Latency because the buffer will be allocated in low memory and wont' be bounced
alignBuffer->userBuffer->writeBytes(alignBuffer->userOffset, (void*)alignBuffer->vaddr, frActualCount);
alignBuffer->actCount = frActualCount;
}
if (_lowLatency)
{
if ( _requestFromRosettaClient )
{
pLLFrames[_frameIndex].frActCount = OSSwapInt16(frActualCount);
pLLFrames[_frameIndex].frReqCount = OSSwapInt16(pLLFrames[_frameIndex].frReqCount);
AbsoluteTime_to_scalar(&pLLFrames[_frameIndex].frTimeStamp)
= OSSwapInt64(AbsoluteTime_to_scalar(&timeStamp));
pLLFrames[_frameIndex].frStatus = OSSwapInt32(frStatus);
}
else
{
pLLFrames[_frameIndex].frActCount = frActualCount;
pLLFrames[_frameIndex].frTimeStamp = timeStamp;
pLLFrames[_frameIndex].frStatus = frStatus;
#ifdef __LP64__
USBTrace( kUSBTUHCIInterrupts, kTPUHCIUpdateFrameList , (uintptr_t)((_pEndpoint->direction << 24) | ( _pEndpoint->functionAddress << 8) | _pEndpoint->endpointNumber), (uintptr_t)&pLLFrames[_frameIndex], (uintptr_t)frActualCount, (uintptr_t)timeStamp );
#else
USBTrace( kUSBTUHCIInterrupts, kTPUHCIUpdateFrameList , (uintptr_t)((_pEndpoint->direction << 24) | ( _pEndpoint->functionAddress << 8) | _pEndpoint->endpointNumber), (uintptr_t)&pLLFrames[_frameIndex], (uintptr_t)(timeStamp.hi), (uintptr_t)timeStamp.lo );
#endif
}
}
else
{
if ( _requestFromRosettaClient )
{
pFrames[_frameIndex].frActCount = OSSwapInt16(frActualCount);
pFrames[_frameIndex].frReqCount = OSSwapInt16(pFrames[_frameIndex].frReqCount);
pFrames[_frameIndex].frStatus = OSSwapInt32(frStatus);
}
else
{
pFrames[_frameIndex].frActCount = frActualCount;
pFrames[_frameIndex].frStatus = frStatus;
}
}
if (frStatus != kIOReturnSuccess)
{
if (frStatus != kIOReturnUnderrun)
{
_pEndpoint->accumulatedStatus = frStatus;
}
else if (_pEndpoint->accumulatedStatus == kIOReturnSuccess)
{
_pEndpoint->accumulatedStatus = kIOReturnUnderrun;
}
}
return frStatus;
}
void
swap_i386_thread_fpstate(
i386_thread_fpstate_t *fpu,
enum NXByteOrder target_byte_sex)
{
struct swapped_fp_control {
union {
struct {
unsigned short
:3,
/*inf*/ :1,
rc :2,
pc :2,
:2,
precis :1,
undfl :1,
ovrfl :1,
zdiv :1,
denorm :1,
invalid :1;
} fields;
unsigned short half;
} u;
} sfpc;
struct swapped_fp_status {
union {
struct {
unsigned short
busy :1,
c3 :1,
tos :3,
c2 :1,
c1 :1,
c0 :1,
errsumm :1,
stkflt :1,
precis :1,
undfl :1,
ovrfl :1,
zdiv :1,
denorm :1,
invalid :1;
} fields;
unsigned short half;
} u;
} sfps;
struct swapped_fp_tag {
union {
struct {
unsigned short
tag7 :2,
tag6 :2,
tag5 :2,
tag4 :2,
tag3 :2,
tag2 :2,
tag1 :2,
tag0 :2;
} fields;
unsigned short half;
} u;
} sfpt;
struct swapped_fp_data_reg {
unsigned short mant;
unsigned short mant1 :16,
mant2 :16,
mant3 :16;
union {
struct {
unsigned short sign :1,
exp :15;
} fields;
unsigned short half;
} u;
} sfpd;
struct swapped_sel {
union {
struct {
unsigned short
index :13,
ti :1,
rpl :2;
} fields;
unsigned short half;
} u;
} ss;
enum NXByteOrder host_byte_sex;
int i;
host_byte_sex = NXHostByteOrder();
fpu->environ.ip = OSSwapInt32(fpu->environ.ip);
fpu->environ.opcode = OSSwapInt16(fpu->environ.opcode);
fpu->environ.dp = OSSwapInt32(fpu->environ.dp);
if(target_byte_sex == host_byte_sex){
memcpy(&sfpc, &(fpu->environ.control),
sizeof(struct swapped_fp_control));
sfpc.u.half = OSSwapInt16(sfpc.u.half);
fpu->environ.control.rc = sfpc.u.fields.rc;
fpu->environ.control.pc = sfpc.u.fields.pc;
fpu->environ.control.precis = sfpc.u.fields.precis;
fpu->environ.control.undfl = sfpc.u.fields.undfl;
fpu->environ.control.ovrfl = sfpc.u.fields.ovrfl;
fpu->environ.control.zdiv = sfpc.u.fields.zdiv;
fpu->environ.control.denorm = sfpc.u.fields.denorm;
fpu->environ.control.invalid = sfpc.u.fields.invalid;
memcpy(&sfps, &(fpu->environ.status),
sizeof(struct swapped_fp_status));
sfps.u.half = OSSwapInt16(sfps.u.half);
fpu->environ.status.busy = sfps.u.fields.busy;
fpu->environ.status.c3 = sfps.u.fields.c3;
fpu->environ.status.tos = sfps.u.fields.tos;
fpu->environ.status.c2 = sfps.u.fields.c2;
fpu->environ.status.c1 = sfps.u.fields.c1;
fpu->environ.status.c0 = sfps.u.fields.c0;
fpu->environ.status.errsumm = sfps.u.fields.errsumm;
fpu->environ.status.stkflt = sfps.u.fields.stkflt;
fpu->environ.status.precis = sfps.u.fields.precis;
fpu->environ.status.undfl = sfps.u.fields.undfl;
fpu->environ.status.ovrfl = sfps.u.fields.ovrfl;
fpu->environ.status.zdiv = sfps.u.fields.zdiv;
fpu->environ.status.denorm = sfps.u.fields.denorm;
fpu->environ.status.invalid = sfps.u.fields.invalid;
memcpy(&sfpt, &(fpu->environ.tag),
sizeof(struct swapped_fp_tag));
sfpt.u.half = OSSwapInt16(sfpt.u.half);
fpu->environ.tag.tag7 = sfpt.u.fields.tag7;
fpu->environ.tag.tag6 = sfpt.u.fields.tag6;
fpu->environ.tag.tag5 = sfpt.u.fields.tag5;
fpu->environ.tag.tag4 = sfpt.u.fields.tag4;
fpu->environ.tag.tag3 = sfpt.u.fields.tag3;
fpu->environ.tag.tag2 = sfpt.u.fields.tag2;
fpu->environ.tag.tag1 = sfpt.u.fields.tag1;
fpu->environ.tag.tag0 = sfpt.u.fields.tag0;
memcpy(&ss, &(fpu->environ.cs),
sizeof(struct swapped_sel));
ss.u.half = OSSwapInt16(ss.u.half);
fpu->environ.cs.index = ss.u.fields.index;
fpu->environ.cs.ti = ss.u.fields.ti;
fpu->environ.cs.rpl = ss.u.fields.rpl;
memcpy(&ss, &(fpu->environ.ds),
sizeof(struct swapped_sel));
ss.u.half = OSSwapInt16(ss.u.half);
fpu->environ.ds.index = ss.u.fields.index;
fpu->environ.ds.ti = ss.u.fields.ti;
fpu->environ.ds.rpl = ss.u.fields.rpl;
for(i = 0; i < 8; i++){
memcpy(&sfpd, &(fpu->stack.ST[i]),
sizeof(struct swapped_fp_data_reg));
fpu->stack.ST[i].mant = OSSwapInt16(sfpd.mant);
fpu->stack.ST[i].mant1 = OSSwapInt16(sfpd.mant1);
fpu->stack.ST[i].mant2 = OSSwapInt16(sfpd.mant2);
fpu->stack.ST[i].mant3 = OSSwapInt16(sfpd.mant3);
sfpd.u.half = OSSwapInt16(sfpd.u.half);
fpu->stack.ST[i].exp = sfpd.u.fields.exp;
fpu->stack.ST[i].sign = sfpd.u.fields.sign;
}
}
else{
sfpc.u.fields.rc = fpu->environ.control.rc;
sfpc.u.fields.pc = fpu->environ.control.pc;
sfpc.u.fields.precis = fpu->environ.control.precis;
sfpc.u.fields.undfl = fpu->environ.control.undfl;
sfpc.u.fields.ovrfl = fpu->environ.control.ovrfl;
sfpc.u.fields.zdiv = fpu->environ.control.zdiv;
sfpc.u.fields.denorm = fpu->environ.control.denorm;
sfpc.u.fields.invalid = fpu->environ.control.invalid;
sfpc.u.half = OSSwapInt16(sfpc.u.half);
memcpy(&(fpu->environ.control), &sfpc,
sizeof(struct swapped_fp_control));
sfps.u.fields.busy = fpu->environ.status.busy;
sfps.u.fields.c3 = fpu->environ.status.c3;
sfps.u.fields.tos = fpu->environ.status.tos;
sfps.u.fields.c2 = fpu->environ.status.c2;
sfps.u.fields.c1 = fpu->environ.status.c1;
sfps.u.fields.c0 = fpu->environ.status.c0;
sfps.u.fields.errsumm = fpu->environ.status.errsumm;
sfps.u.fields.stkflt = fpu->environ.status.stkflt;
sfps.u.fields.precis = fpu->environ.status.precis;
sfps.u.fields.undfl = fpu->environ.status.undfl;
sfps.u.fields.ovrfl = fpu->environ.status.ovrfl;
sfps.u.fields.zdiv = fpu->environ.status.zdiv;
sfps.u.fields.denorm = fpu->environ.status.denorm;
sfps.u.fields.invalid = fpu->environ.status.invalid;
sfps.u.half = OSSwapInt16(sfps.u.half);
memcpy(&(fpu->environ.status), &sfps,
sizeof(struct swapped_fp_status));
sfpt.u.fields.tag7 = fpu->environ.tag.tag7;
sfpt.u.fields.tag6 = fpu->environ.tag.tag6;
sfpt.u.fields.tag5 = fpu->environ.tag.tag5;
sfpt.u.fields.tag4 = fpu->environ.tag.tag4;
sfpt.u.fields.tag3 = fpu->environ.tag.tag3;
sfpt.u.fields.tag2 = fpu->environ.tag.tag2;
sfpt.u.fields.tag1 = fpu->environ.tag.tag1;
sfpt.u.fields.tag0 = fpu->environ.tag.tag0;
sfpt.u.half = OSSwapInt16(sfpt.u.half);
memcpy(&(fpu->environ.tag), &sfpt,
sizeof(struct swapped_fp_tag));
ss.u.fields.index = fpu->environ.cs.index;
ss.u.fields.ti = fpu->environ.cs.ti;
ss.u.fields.rpl = fpu->environ.cs.rpl;
ss.u.half = OSSwapInt16(ss.u.half);
memcpy(&(fpu->environ.cs), &ss,
sizeof(struct swapped_sel));
ss.u.fields.index = fpu->environ.ds.index;
ss.u.fields.ti = fpu->environ.ds.ti;
ss.u.fields.rpl = fpu->environ.ds.rpl;
ss.u.half = OSSwapInt16(ss.u.half);
memcpy(&(fpu->environ.cs), &ss,
sizeof(struct swapped_sel));
for(i = 0; i < 8; i++){
sfpd.mant = OSSwapInt16(fpu->stack.ST[i].mant);
sfpd.mant1 = OSSwapInt16(fpu->stack.ST[i].mant1);
sfpd.mant2 = OSSwapInt16(fpu->stack.ST[i].mant2);
sfpd.mant3 = OSSwapInt16(fpu->stack.ST[i].mant3);
sfpd.u.fields.exp = fpu->stack.ST[i].exp;
sfpd.u.fields.sign = fpu->stack.ST[i].sign;
sfpd.u.half = OSSwapInt16(sfpd.u.half);
memcpy(&(fpu->stack.ST[i]), &sfpd,
sizeof(struct swapped_fp_data_reg));
}
}
}
void
swap_i386_float_state(
struct i386_float_state *fpu,
enum NXByteOrder target_byte_sex)
{
#ifndef i386_EXCEPTION_STATE_COUNT
/* this routine does nothing as their are currently no non-byte fields */
#else /* !defined(i386_EXCEPTION_STATE_COUNT) */
struct swapped_fp_control {
union {
struct {
unsigned short
:3,
/*inf*/ :1,
rc :2,
pc :2,
:2,
precis :1,
undfl :1,
ovrfl :1,
zdiv :1,
denorm :1,
invalid :1;
} fields;
unsigned short half;
} u;
} sfpc;
struct swapped_fp_status {
union {
struct {
unsigned short
busy :1,
c3 :1,
tos :3,
c2 :1,
c1 :1,
c0 :1,
errsumm :1,
stkflt :1,
precis :1,
undfl :1,
ovrfl :1,
zdiv :1,
denorm :1,
invalid :1;
} fields;
unsigned short half;
} u;
} sfps;
enum NXByteOrder host_byte_sex;
host_byte_sex = NXHostByteOrder();
fpu->fpu_reserved[0] = OSSwapInt32(fpu->fpu_reserved[0]);
fpu->fpu_reserved[1] = OSSwapInt32(fpu->fpu_reserved[1]);
if(target_byte_sex == host_byte_sex){
memcpy(&sfpc, &(fpu->fpu_fcw),
sizeof(struct swapped_fp_control));
sfpc.u.half = OSSwapInt16(sfpc.u.half);
fpu->fpu_fcw.rc = sfpc.u.fields.rc;
fpu->fpu_fcw.pc = sfpc.u.fields.pc;
fpu->fpu_fcw.precis = sfpc.u.fields.precis;
fpu->fpu_fcw.undfl = sfpc.u.fields.undfl;
fpu->fpu_fcw.ovrfl = sfpc.u.fields.ovrfl;
fpu->fpu_fcw.zdiv = sfpc.u.fields.zdiv;
fpu->fpu_fcw.denorm = sfpc.u.fields.denorm;
fpu->fpu_fcw.invalid = sfpc.u.fields.invalid;
memcpy(&sfps, &(fpu->fpu_fsw),
sizeof(struct swapped_fp_status));
sfps.u.half = OSSwapInt16(sfps.u.half);
fpu->fpu_fsw.busy = sfps.u.fields.busy;
fpu->fpu_fsw.c3 = sfps.u.fields.c3;
fpu->fpu_fsw.tos = sfps.u.fields.tos;
fpu->fpu_fsw.c2 = sfps.u.fields.c2;
fpu->fpu_fsw.c1 = sfps.u.fields.c1;
fpu->fpu_fsw.c0 = sfps.u.fields.c0;
fpu->fpu_fsw.errsumm = sfps.u.fields.errsumm;
fpu->fpu_fsw.stkflt = sfps.u.fields.stkflt;
fpu->fpu_fsw.precis = sfps.u.fields.precis;
fpu->fpu_fsw.undfl = sfps.u.fields.undfl;
fpu->fpu_fsw.ovrfl = sfps.u.fields.ovrfl;
fpu->fpu_fsw.zdiv = sfps.u.fields.zdiv;
fpu->fpu_fsw.denorm = sfps.u.fields.denorm;
fpu->fpu_fsw.invalid = sfps.u.fields.invalid;
}
else{
sfpc.u.fields.rc = fpu->fpu_fcw.rc;
sfpc.u.fields.pc = fpu->fpu_fcw.pc;
sfpc.u.fields.precis = fpu->fpu_fcw.precis;
sfpc.u.fields.undfl = fpu->fpu_fcw.undfl;
sfpc.u.fields.ovrfl = fpu->fpu_fcw.ovrfl;
sfpc.u.fields.zdiv = fpu->fpu_fcw.zdiv;
sfpc.u.fields.denorm = fpu->fpu_fcw.denorm;
sfpc.u.fields.invalid = fpu->fpu_fcw.invalid;
sfpc.u.half = OSSwapInt16(sfpc.u.half);
memcpy(&(fpu->fpu_fcw), &sfpc,
sizeof(struct swapped_fp_control));
sfps.u.fields.busy = fpu->fpu_fsw.busy;
sfps.u.fields.c3 = fpu->fpu_fsw.c3;
sfps.u.fields.tos = fpu->fpu_fsw.tos;
sfps.u.fields.c2 = fpu->fpu_fsw.c2;
sfps.u.fields.c1 = fpu->fpu_fsw.c1;
sfps.u.fields.c0 = fpu->fpu_fsw.c0;
sfps.u.fields.errsumm = fpu->fpu_fsw.errsumm;
sfps.u.fields.stkflt = fpu->fpu_fsw.stkflt;
sfps.u.fields.precis = fpu->fpu_fsw.precis;
sfps.u.fields.undfl = fpu->fpu_fsw.undfl;
sfps.u.fields.ovrfl = fpu->fpu_fsw.ovrfl;
sfps.u.fields.zdiv = fpu->fpu_fsw.zdiv;
sfps.u.fields.denorm = fpu->fpu_fsw.denorm;
sfps.u.fields.invalid = fpu->fpu_fsw.invalid;
sfps.u.half = OSSwapInt16(sfps.u.half);
memcpy(&(fpu->fpu_fsw), &sfps,
sizeof(struct swapped_fp_status));
}
fpu->fpu_fop = OSSwapInt16(fpu->fpu_fop);
fpu->fpu_ip = OSSwapInt32(fpu->fpu_ip);
fpu->fpu_cs = OSSwapInt16(fpu->fpu_cs);
fpu->fpu_rsrv2 = OSSwapInt16(fpu->fpu_rsrv2);
fpu->fpu_dp = OSSwapInt32(fpu->fpu_dp);
fpu->fpu_ds = OSSwapInt16(fpu->fpu_ds);
fpu->fpu_rsrv3 = OSSwapInt16(fpu->fpu_rsrv3);
fpu->fpu_mxcsr = OSSwapInt32(fpu->fpu_mxcsr);
fpu->fpu_mxcsrmask = OSSwapInt32(fpu->fpu_mxcsrmask);
fpu->fpu_reserved1 = OSSwapInt32(fpu->fpu_reserved1);
#endif /* !defined(i386_EXCEPTION_STATE_COUNT) */
}