* Authors: Brett Miller
*/
-#include "arch/mips/isa_traits.hh"
#include "arch/mips/dsp.hh"
-#include "config/full_system.hh"
-#include "cpu/static_inst.hh"
-#include "sim/serialize.hh"
+#include "arch/mips/isa_traits.hh"
#include "base/bitfield.hh"
#include "base/misc.hh"
+#include "cpu/static_inst.hh"
+#include "sim/serialize.hh"
using namespace MipsISA;
using namespace std;
int32_t
-MipsISA::bitrev( int32_t value )
+MipsISA::bitrev(int32_t value)
{
int32_t result = 0;
- int i, shift;
+ int shift;
- for( i=0; i<16; i++ )
- {
- shift = 2*i - 15;
+ for (int i = 0; i < 16; i++) {
+ shift = 2 * i - 15;
- if( shift < 0 )
- result |= (value & 1L<<i) << -shift;
+ if (shift < 0)
+ result |= (value & 1 << i) << -shift;
else
- result |= (value & 1L<<i) >> shift;
+ result |= (value & 1 << i) >> shift;
}
return result;
}
uint64_t
-MipsISA::dspSaturate( uint64_t value, int32_t fmt, int32_t sign, uint32_t *overflow )
+MipsISA::dspSaturate(uint64_t value, int32_t fmt, int32_t sign,
+ uint32_t *overflow)
{
- int64_t svalue;
+ int64_t svalue = (int64_t)value;
- svalue = (int64_t)value;
-
- switch( sign )
- {
+ switch (sign) {
case SIGNED:
- if( svalue > (int64_t)FIXED_SMAX[fmt] )
- {
+ if (svalue > (int64_t)FIXED_SMAX[fmt]) {
*overflow = 1;
svalue = (int64_t)FIXED_SMAX[fmt];
- }
- else if( svalue < (int64_t)FIXED_SMIN[fmt] )
- {
+ } else if (svalue < (int64_t)FIXED_SMIN[fmt]) {
*overflow = 1;
svalue = (int64_t)FIXED_SMIN[fmt];
}
break;
case UNSIGNED:
- if( svalue > (int64_t)FIXED_UMAX[fmt] )
- {
+ if (svalue > (int64_t)FIXED_UMAX[fmt]) {
*overflow = 1;
svalue = FIXED_UMAX[fmt];
- }
- else if( svalue < (int64_t)FIXED_UMIN[fmt] )
- {
+ } else if (svalue < (int64_t)FIXED_UMIN[fmt]) {
*overflow = 1;
svalue = FIXED_UMIN[fmt];
}
break;
}
- return( (uint64_t)svalue );
+ return (uint64_t)svalue;
}
uint64_t
-MipsISA::checkOverflow( uint64_t value, int32_t fmt, int32_t sign, uint32_t *overflow )
+MipsISA::checkOverflow(uint64_t value, int32_t fmt, int32_t sign,
+ uint32_t *overflow)
{
- int64_t svalue;
-
- svalue = (int64_t)value;
+ int64_t svalue = (int64_t)value;
- switch( sign )
+ switch (sign)
{
case SIGNED:
- if( svalue > (int64_t)FIXED_SMAX[fmt] || svalue < (int64_t)FIXED_SMIN[fmt] )
+ if (svalue > (int64_t)FIXED_SMAX[fmt] ||
+ svalue < (int64_t)FIXED_SMIN[fmt])
*overflow = 1;
break;
case UNSIGNED:
- if( svalue > (int64_t)FIXED_UMAX[fmt] || svalue < (int64_t)FIXED_UMIN[fmt] )
+ if (svalue > (int64_t)FIXED_UMAX[fmt] ||
+ svalue < (int64_t)FIXED_UMIN[fmt])
*overflow = 1;
break;
}
- return( (uint64_t)svalue );
+ return (uint64_t)svalue;
}
uint64_t
-MipsISA::signExtend( uint64_t value, int32_t fmt )
+MipsISA::signExtend(uint64_t value, int32_t fmt)
{
int32_t signpos = SIMD_NBITS[fmt];
- uint64_t sign = uint64_t(1)<<(signpos-1);
+ uint64_t sign = uint64_t(1) << (signpos - 1);
uint64_t ones = ~(0ULL);
- if( value & sign )
+ if (value & sign)
value |= (ones << signpos); // extend with ones
else
value &= (ones >> (64 - signpos)); // extend with zeros
}
uint64_t
-MipsISA::addHalfLsb( uint64_t value, int32_t lsbpos )
+MipsISA::addHalfLsb(uint64_t value, int32_t lsbpos)
{
- return( value += ULL(1) << (lsbpos-1) );
+ return value += ULL(1) << (lsbpos - 1);
}
int32_t
-MipsISA::dspAbs( int32_t a, int32_t fmt, uint32_t *dspctl )
+MipsISA::dspAbs(int32_t a, int32_t fmt, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
int64_t svalue;
uint32_t ouflag = 0;
uint64_t a_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
- for( i=0; i<nvals; i++ )
- {
+ for (int i = 0; i < nvals; i++) {
svalue = (int64_t)a_values[i];
- if( a_values[i] == FIXED_SMIN[fmt] )
- {
+ if (a_values[i] == FIXED_SMIN[fmt]) {
a_values[i] = FIXED_SMAX[fmt];
ouflag = 1;
- }
- else if( svalue < 0 )
- {
- a_values[i] = uint64_t( 0 - svalue );
+ } else if (svalue < 0) {
+ a_values[i] = uint64_t(0 - svalue);
}
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- if( ouflag )
- writeDSPControl( dspctl, (ouflag<<4)<<DSP_CTL_POS[DSP_OUFLAG], 1<<DSP_OUFLAG);
+ if (ouflag)
+ writeDSPControl(dspctl, (ouflag << 4) << DSP_CTL_POS[DSP_OUFLAG],
+ 1 << DSP_OUFLAG);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspAdd( int32_t a, int32_t b, int32_t fmt, int32_t saturate, int32_t sign, uint32_t *dspctl )
+MipsISA::dspAdd(int32_t a, int32_t b, int32_t fmt, int32_t saturate,
+ int32_t sign, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint32_t ouflag = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<nvals; i++ )
+ for (int i = 0; i < nvals; i++)
{
- if( saturate )
- a_values[i] = dspSaturate( a_values[i] + b_values[i], fmt, sign, &ouflag );
+ if (saturate)
+ a_values[i] = dspSaturate(a_values[i] + b_values[i], fmt, sign,
+ &ouflag);
else
- a_values[i] = checkOverflow( a_values[i] + b_values[i], fmt, sign, &ouflag );
+ a_values[i] = checkOverflow(a_values[i] + b_values[i], fmt, sign,
+ &ouflag);
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- if( ouflag )
- writeDSPControl( dspctl, (ouflag<<4)<<DSP_CTL_POS[DSP_OUFLAG], 1<<DSP_OUFLAG);
+ if (ouflag)
+ writeDSPControl(dspctl, (ouflag << 4) << DSP_CTL_POS[DSP_OUFLAG],
+ 1 << DSP_OUFLAG);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspAddh( int32_t a, int32_t b, int32_t fmt, int32_t round, int32_t sign )
+MipsISA::dspAddh(int32_t a, int32_t b, int32_t fmt, int32_t round,
+ int32_t sign)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<nvals; i++ )
- {
- if( round )
- a_values[i] = addHalfLsb( a_values[i] + b_values[i], 1 ) >> 1;
+ for (int i = 0; i < nvals; i++) {
+ if (round)
+ a_values[i] = addHalfLsb(a_values[i] + b_values[i], 1) >> 1;
else
- a_values[i] = ( a_values[i] + b_values[i] ) >> 1;
+ a_values[i] = (a_values[i] + b_values[i]) >> 1;
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspSub( int32_t a, int32_t b, int32_t fmt, int32_t saturate, int32_t sign, uint32_t *dspctl )
+MipsISA::dspSub(int32_t a, int32_t b, int32_t fmt, int32_t saturate,
+ int32_t sign, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint32_t ouflag = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<nvals; i++ )
- {
- if( saturate )
- a_values[i] = dspSaturate( a_values[i] - b_values[i], fmt, sign, &ouflag );
+ for (int i = 0; i < nvals; i++) {
+ if (saturate)
+ a_values[i] = dspSaturate(a_values[i] - b_values[i], fmt, sign,
+ &ouflag);
else
- a_values[i] = checkOverflow( a_values[i] - b_values[i], fmt, sign, &ouflag );
+ a_values[i] = checkOverflow(a_values[i] - b_values[i], fmt, sign,
+ &ouflag);
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- if( ouflag )
- writeDSPControl( dspctl, (ouflag<<4)<<DSP_CTL_POS[DSP_OUFLAG], 1<<DSP_OUFLAG);
+ if (ouflag)
+ writeDSPControl(dspctl, (ouflag << 4) << DSP_CTL_POS[DSP_OUFLAG],
+ 1 << DSP_OUFLAG);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspSubh( int32_t a, int32_t b, int32_t fmt, int32_t round, int32_t sign )
+MipsISA::dspSubh(int32_t a, int32_t b, int32_t fmt, int32_t round,
+ int32_t sign)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<nvals; i++ )
+ for (int i = 0; i < nvals; i++)
{
- if( round )
- a_values[i] = addHalfLsb( a_values[i] - b_values[i], 1 ) >> 1;
+ if (round)
+ a_values[i] = addHalfLsb(a_values[i] - b_values[i], 1) >> 1;
else
- a_values[i] = ( a_values[i] - b_values[i] ) >> 1;
+ a_values[i] = (a_values[i] - b_values[i]) >> 1;
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspShll( int32_t a, uint32_t sa, int32_t fmt, int32_t saturate, int32_t sign, uint32_t *dspctl )
+MipsISA::dspShll(int32_t a, uint32_t sa, int32_t fmt, int32_t saturate,
+ int32_t sign, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint32_t ouflag = 0;
uint64_t a_values[SIMD_MAX_VALS];
- sa = bits( sa, SIMD_LOG2N[fmt]-1, 0 );
- simdUnpack( a, a_values, fmt, sign );
+ sa = bits(sa, SIMD_LOG2N[fmt] - 1, 0);
+ simdUnpack(a, a_values, fmt, sign);
- for( i=0; i<nvals; i++ )
+ for (int i = 0; i < nvals; i++)
{
- if( saturate )
- a_values[i] = dspSaturate( a_values[i] << sa, fmt, sign, &ouflag );
+ if (saturate)
+ a_values[i] = dspSaturate(a_values[i] << sa, fmt, sign, &ouflag);
else
- a_values[i] = checkOverflow( a_values[i] << sa, fmt, sign, &ouflag );
+ a_values[i] = checkOverflow(a_values[i] << sa, fmt, sign, &ouflag);
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- if( ouflag )
- writeDSPControl( dspctl, (ouflag<<6)<<DSP_CTL_POS[DSP_OUFLAG], 1<<DSP_OUFLAG);
+ if (ouflag)
+ writeDSPControl(dspctl, (ouflag << 6) << DSP_CTL_POS[DSP_OUFLAG],
+ 1 << DSP_OUFLAG);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspShrl( int32_t a, uint32_t sa, int32_t fmt, int32_t sign )
+MipsISA::dspShrl(int32_t a, uint32_t sa, int32_t fmt, int32_t sign)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint64_t a_values[SIMD_MAX_VALS];
- sa = bits( sa, SIMD_LOG2N[fmt]-1, 0 );
+ sa = bits(sa, SIMD_LOG2N[fmt] - 1, 0);
- simdUnpack( a, a_values, fmt, UNSIGNED );
+ simdUnpack(a, a_values, fmt, UNSIGNED);
- for( i=0; i<nvals; i++ )
+ for (int i = 0; i < nvals; i++)
a_values[i] = a_values[i] >> sa;
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspShra( int32_t a, uint32_t sa, int32_t fmt, int32_t round, int32_t sign, uint32_t *dspctl )
+MipsISA::dspShra(int32_t a, uint32_t sa, int32_t fmt, int32_t round,
+ int32_t sign, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint64_t a_values[SIMD_MAX_VALS];
- sa = bits( sa, SIMD_LOG2N[fmt]-1, 0 );
+ sa = bits(sa, SIMD_LOG2N[fmt] - 1, 0);
- simdUnpack( a, a_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
- for( i=0; i<nvals; i++ )
- {
- if( round )
- a_values[i] = addHalfLsb( a_values[i], sa ) >> sa;
+ for (int i = 0; i < nvals; i++) {
+ if (round)
+ a_values[i] = addHalfLsb(a_values[i], sa) >> sa;
else
a_values[i] = a_values[i] >> sa;
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspMulq( int32_t a, int32_t b, int32_t fmt, int32_t saturate, int32_t round, uint32_t *dspctl )
+MipsISA::dspMulq(int32_t a, int32_t b, int32_t fmt, int32_t saturate,
+ int32_t round, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int sa = SIMD_NBITS[fmt];
int32_t result;
uint64_t b_values[SIMD_MAX_VALS];
int64_t temp;
- simdUnpack( a, a_values, fmt, SIGNED );
- simdUnpack( b, b_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
+ simdUnpack(b, b_values, fmt, SIGNED);
- for( i=0; i<nvals; i++ )
- {
- if( round )
- temp = (int64_t)addHalfLsb( a_values[i] * b_values[i] << 1, sa ) >> sa;
+ for (int i = 0; i < nvals; i++) {
+ if (round)
+ temp =
+ (int64_t)addHalfLsb(a_values[i] * b_values[i] << 1, sa) >> sa;
else
temp = (int64_t)(a_values[i] * b_values[i]) >> (sa - 1);
- if( a_values[i] == FIXED_SMIN[fmt] &&
- b_values[i] == FIXED_SMIN[fmt] )
- {
+ if (a_values[i] == FIXED_SMIN[fmt] && b_values[i] == FIXED_SMIN[fmt]) {
ouflag = 1;
- if( saturate )
+ if (saturate)
temp = FIXED_SMAX[fmt];
}
a_values[i] = temp;
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- if( ouflag )
- writeDSPControl( dspctl, (ouflag<<5)<<DSP_CTL_POS[DSP_OUFLAG], 1<<DSP_OUFLAG);
+ if (ouflag)
+ writeDSPControl(dspctl, (ouflag << 5) << DSP_CTL_POS[DSP_OUFLAG],
+ 1 << DSP_OUFLAG);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspMul( int32_t a, int32_t b, int32_t fmt, int32_t saturate, uint32_t *dspctl )
+MipsISA::dspMul(int32_t a, int32_t b, int32_t fmt, int32_t saturate,
+ uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint32_t ouflag = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, SIGNED );
- simdUnpack( b, b_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
+ simdUnpack(b, b_values, fmt, SIGNED);
- for( i=0; i<nvals; i++ )
+ for (int i = 0; i < nvals; i++)
{
- if( saturate )
- a_values[i] = dspSaturate( a_values[i] * b_values[i], fmt, SIGNED, &ouflag );
+ if (saturate)
+ a_values[i] = dspSaturate(a_values[i] * b_values[i], fmt, SIGNED,
+ &ouflag);
else
- a_values[i] = checkOverflow( a_values[i] * b_values[i], fmt, SIGNED, &ouflag );
+ a_values[i] = checkOverflow(a_values[i] * b_values[i], fmt, SIGNED,
+ &ouflag);
}
- simdPack( a_values, &result, fmt );
+ simdPack(a_values, &result, fmt);
- if( ouflag )
- writeDSPControl( dspctl, (ouflag<<5)<<DSP_CTL_POS[DSP_OUFLAG], 1<<DSP_OUFLAG);
+ if (ouflag)
+ writeDSPControl(dspctl, (ouflag << 5) << DSP_CTL_POS[DSP_OUFLAG],
+ 1 << DSP_OUFLAG);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspMuleu( int32_t a, int32_t b, int32_t mode, uint32_t *dspctl )
+MipsISA::dspMuleu(int32_t a, int32_t b, int32_t mode, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[SIMD_FMT_PH];
int32_t result;
uint32_t ouflag = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, SIMD_FMT_QB, UNSIGNED );
- simdUnpack( b, b_values, SIMD_FMT_PH, UNSIGNED );
+ simdUnpack(a, a_values, SIMD_FMT_QB, UNSIGNED);
+ simdUnpack(b, b_values, SIMD_FMT_PH, UNSIGNED);
- switch( mode )
- {
+ switch (mode) {
case MODE_L:
- for( i=0; i<nvals; i++ )
- b_values[i] = dspSaturate( a_values[i+2] * b_values[i], SIMD_FMT_PH, UNSIGNED, &ouflag );
+ for (int i = 0; i < nvals; i++)
+ b_values[i] = dspSaturate(a_values[i + 2] * b_values[i],
+ SIMD_FMT_PH, UNSIGNED, &ouflag);
break;
case MODE_R:
- for( i=0; i<nvals; i++ )
- b_values[i] = dspSaturate( a_values[i] * b_values[i], SIMD_FMT_PH, UNSIGNED, &ouflag );
+ for (int i = 0; i < nvals; i++)
+ b_values[i] = dspSaturate(a_values[i] * b_values[i], SIMD_FMT_PH,
+ UNSIGNED, &ouflag);
break;
}
- simdPack( b_values, &result, SIMD_FMT_PH );
+ simdPack(b_values, &result, SIMD_FMT_PH);
- if( ouflag )
- writeDSPControl( dspctl, (ouflag<<5)<<DSP_CTL_POS[DSP_OUFLAG], 1<<DSP_OUFLAG);
+ if (ouflag)
+ writeDSPControl(dspctl, (ouflag << 5) << DSP_CTL_POS[DSP_OUFLAG],
+ 1 << DSP_OUFLAG);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspMuleq( int32_t a, int32_t b, int32_t mode, uint32_t *dspctl )
+MipsISA::dspMuleq(int32_t a, int32_t b, int32_t mode, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[SIMD_FMT_W];
int32_t result;
uint32_t ouflag = 0;
uint64_t b_values[SIMD_MAX_VALS];
uint64_t c_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, SIMD_FMT_PH, SIGNED );
- simdUnpack( b, b_values, SIMD_FMT_PH, SIGNED );
+ memset(c_values, 0, sizeof(c_values));
- switch( mode )
- {
+ simdUnpack(a, a_values, SIMD_FMT_PH, SIGNED);
+ simdUnpack(b, b_values, SIMD_FMT_PH, SIGNED);
+
+ switch (mode) {
case MODE_L:
- for( i=0; i<nvals; i++ )
- c_values[i] = dspSaturate( a_values[i+1] * b_values[i+1] << 1,
- SIMD_FMT_W, SIGNED, &ouflag );
+ for (int i = 0; i < nvals; i++)
+ c_values[i] = dspSaturate(a_values[i + 1] * b_values[i + 1] << 1,
+ SIMD_FMT_W, SIGNED, &ouflag);
break;
case MODE_R:
- for( i=0; i<nvals; i++ )
- c_values[i] = dspSaturate( a_values[i] * b_values[i] << 1,
- SIMD_FMT_W, SIGNED, &ouflag );
+ for (int i = 0; i < nvals; i++)
+ c_values[i] = dspSaturate(a_values[i] * b_values[i] << 1,
+ SIMD_FMT_W, SIGNED, &ouflag);
break;
}
- simdPack( c_values, &result, SIMD_FMT_W );
+ simdPack(c_values, &result, SIMD_FMT_W);
- if( ouflag )
- writeDSPControl( dspctl, (ouflag<<5)<<DSP_CTL_POS[DSP_OUFLAG], 1<<DSP_OUFLAG);
+ if (ouflag)
+ writeDSPControl(dspctl, (ouflag << 5) << DSP_CTL_POS[DSP_OUFLAG],
+ 1 << DSP_OUFLAG);
- return( result );
+ return result;
}
int64_t
-MipsISA::dspDpaq( int64_t dspac, int32_t a, int32_t b, int32_t ac, int32_t infmt,
- int32_t outfmt, int32_t postsat, int32_t mode, uint32_t *dspctl )
+MipsISA::dspDpaq(int64_t dspac, int32_t a, int32_t b, int32_t ac,
+ int32_t infmt, int32_t outfmt, int32_t postsat, int32_t mode,
+ uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[infmt];
int64_t result = 0;
int64_t temp = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, infmt, SIGNED );
- simdUnpack( b, b_values, infmt, SIGNED );
+ simdUnpack(a, a_values, infmt, SIGNED);
+ simdUnpack(b, b_values, infmt, SIGNED);
- for( i=0; i<nvals; i++ )
- {
- switch( mode )
- {
+ for (int i = 0; i < nvals; i++) {
+ switch (mode) {
case MODE_X:
- if( a_values[nvals-1-i] == FIXED_SMIN[infmt] &&
- b_values[i] == FIXED_SMIN[infmt] )
- {
+ if (a_values[nvals - 1 - i] == FIXED_SMIN[infmt] &&
+ b_values[i] == FIXED_SMIN[infmt]) {
result += FIXED_SMAX[outfmt];
ouflag = 1;
}
else
- result += a_values[nvals-1-i] * b_values[i] << 1;
+ result += a_values[nvals - 1 - i] * b_values[i] << 1;
break;
default:
- if( a_values[i] == FIXED_SMIN[infmt] &&
- b_values[i] == FIXED_SMIN[infmt] )
- {
+ if (a_values[i] == FIXED_SMIN[infmt] &&
+ b_values[i] == FIXED_SMIN[infmt]) {
result += FIXED_SMAX[outfmt];
ouflag = 1;
- }
- else
+ } else {
result += a_values[i] * b_values[i] << 1;
+ }
break;
}
}
- if( postsat )
- {
- if( outfmt == SIMD_FMT_L )
- {
- int signa = bits( dspac, 63, 63 );
- int signb = bits( result, 63, 63 );
+ if (postsat) {
+ if (outfmt == SIMD_FMT_L) {
+ int signa = bits(dspac, 63, 63);
+ int signb = bits(result, 63, 63);
temp = dspac + result;
- if( ( signa == signb ) &&
- ( bits( temp, 63, 63 ) != signa ) )
- {
+ if (signa == signb && bits(temp, 63, 63) != signa) {
ouflag = 1;
- if( signa )
+ if (signa)
dspac = FIXED_SMIN[outfmt];
else
dspac = FIXED_SMAX[outfmt];
- }
- else
+ } else {
dspac = temp;
+ }
+ } else {
+ dspac = dspSaturate(dspac + result, outfmt, SIGNED, &ouflag);
}
- else
- dspac = dspSaturate( dspac + result, outfmt, SIGNED, &ouflag );
- }
- else
+ } else {
dspac += result;
+ }
- if( ouflag )
- *dspctl = insertBits( *dspctl, 16+ac, 16+ac, 1 );
+ if (ouflag)
+ *dspctl = insertBits(*dspctl, 16 + ac, 16 + ac, 1);
- return( dspac );
+ return dspac;
}
int64_t
-MipsISA::dspDpsq( int64_t dspac, int32_t a, int32_t b, int32_t ac, int32_t infmt,
- int32_t outfmt, int32_t postsat, int32_t mode, uint32_t *dspctl )
+MipsISA::dspDpsq(int64_t dspac, int32_t a, int32_t b, int32_t ac,
+ int32_t infmt, int32_t outfmt, int32_t postsat, int32_t mode,
+ uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[infmt];
int64_t result = 0;
int64_t temp = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, infmt, SIGNED );
- simdUnpack( b, b_values, infmt, SIGNED );
+ simdUnpack(a, a_values, infmt, SIGNED);
+ simdUnpack(b, b_values, infmt, SIGNED);
- for( i=0; i<nvals; i++ )
- {
- switch( mode )
- {
+ for (int i = 0; i < nvals; i++) {
+ switch (mode) {
case MODE_X:
- if( a_values[nvals-1-i] == FIXED_SMIN[infmt] &&
- b_values[i] == FIXED_SMIN[infmt] )
- {
+ if (a_values[nvals - 1 - i] == FIXED_SMIN[infmt] &&
+ b_values[i] == FIXED_SMIN[infmt]) {
result += FIXED_SMAX[outfmt];
ouflag = 1;
+ } else {
+ result += a_values[nvals - 1 - i] * b_values[i] << 1;
}
- else
- result += a_values[nvals-1-i] * b_values[i] << 1;
break;
default:
- if( a_values[i] == FIXED_SMIN[infmt] &&
- b_values[i] == FIXED_SMIN[infmt] )
- {
+ if (a_values[i] == FIXED_SMIN[infmt] &&
+ b_values[i] == FIXED_SMIN[infmt]) {
result += FIXED_SMAX[outfmt];
ouflag = 1;
- }
- else
+ } else {
result += a_values[i] * b_values[i] << 1;
+ }
break;
}
}
- if( postsat )
- {
- if( outfmt == SIMD_FMT_L )
- {
- int signa = bits( dspac, 63, 63 );
- int signb = bits( -result, 63, 63 );
+ if (postsat) {
+ if (outfmt == SIMD_FMT_L) {
+ int signa = bits(dspac, 63, 63);
+ int signb = bits(-result, 63, 63);
temp = dspac - result;
- if( ( signa == signb ) &&
- ( bits( temp, 63, 63 ) != signa ) )
- {
+ if (signa == signb && bits(temp, 63, 63) != signa) {
ouflag = 1;
- if( signa )
+ if (signa)
dspac = FIXED_SMIN[outfmt];
else
dspac = FIXED_SMAX[outfmt];
- }
- else
+ } else {
dspac = temp;
+ }
+ } else {
+ dspac = dspSaturate(dspac - result, outfmt, SIGNED, &ouflag);
}
- else
- dspac = dspSaturate( dspac - result, outfmt, SIGNED, &ouflag );
- }
- else
+ } else {
dspac -= result;
+ }
- if( ouflag )
- *dspctl = insertBits( *dspctl, 16+ac, 16+ac, 1 );
+ if (ouflag)
+ *dspctl = insertBits(*dspctl, 16 + ac, 16 + ac, 1);
- return( dspac );
+ return dspac;
}
int64_t
-MipsISA::dspDpa( int64_t dspac, int32_t a, int32_t b, int32_t ac,
- int32_t fmt, int32_t sign, int32_t mode )
+MipsISA::dspDpa(int64_t dspac, int32_t a, int32_t b, int32_t ac,
+ int32_t fmt, int32_t sign, int32_t mode)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<2; i++ )
- {
- switch( mode )
- {
+ for (int i = 0; i < 2; i++) {
+ switch (mode) {
case MODE_L:
- dspac += a_values[nvals-1-i] * b_values[nvals-1-i];
+ dspac += a_values[nvals - 1 - i] * b_values[nvals - 1 - i];
break;
case MODE_R:
- dspac += a_values[nvals-3-i] * b_values[nvals-3-i];
+ dspac += a_values[nvals - 3 - i] * b_values[nvals - 3 - i];
break;
case MODE_X:
- dspac += a_values[nvals-1-i] * b_values[i];
+ dspac += a_values[nvals - 1 - i] * b_values[i];
break;
}
}
}
int64_t
-MipsISA::dspDps( int64_t dspac, int32_t a, int32_t b, int32_t ac,
- int32_t fmt, int32_t sign, int32_t mode )
+MipsISA::dspDps(int64_t dspac, int32_t a, int32_t b, int32_t ac,
+ int32_t fmt, int32_t sign, int32_t mode)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<2; i++ )
- {
- switch( mode )
- {
+ for (int i = 0; i < 2; i++) {
+ switch (mode) {
case MODE_L:
- dspac -= a_values[nvals-1-i] * b_values[nvals-1-i];
+ dspac -= a_values[nvals - 1 - i] * b_values[nvals - 1 - i];
break;
case MODE_R:
- dspac -= a_values[nvals-3-i] * b_values[nvals-3-i];
+ dspac -= a_values[nvals - 3 - i] * b_values[nvals - 3 - i];
break;
case MODE_X:
- dspac -= a_values[nvals-1-i] * b_values[i];
+ dspac -= a_values[nvals - 1 - i] * b_values[i];
break;
}
}
}
int64_t
-MipsISA::dspMaq( int64_t dspac, int32_t a, int32_t b, int32_t ac,
- int32_t fmt, int32_t mode, int32_t saturate, uint32_t *dspctl )
+MipsISA::dspMaq(int64_t dspac, int32_t a, int32_t b, int32_t ac,
+ int32_t fmt, int32_t mode, int32_t saturate, uint32_t *dspctl)
{
- int i = 0;
- int nvals = SIMD_NVALS[fmt-1];
+ int nvals = SIMD_NVALS[fmt - 1];
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
int64_t temp = 0;
uint32_t ouflag = 0;
- simdUnpack( a, a_values, fmt, SIGNED );
- simdUnpack( b, b_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
+ simdUnpack(b, b_values, fmt, SIGNED);
- for( i=0; i<nvals; i++ )
- {
- switch( mode )
- {
+ for (int i = 0; i < nvals; i++) {
+ switch (mode) {
case MODE_L:
- temp = a_values[i+1] * b_values[i+1] << 1;
- if( a_values[i+1] == FIXED_SMIN[fmt] && b_values[i+1] == FIXED_SMIN[fmt] )
- {
- temp = (int64_t)FIXED_SMAX[fmt-1];
+ temp = a_values[i + 1] * b_values[i + 1] << 1;
+ if (a_values[i + 1] == FIXED_SMIN[fmt] &&
+ b_values[i + 1] == FIXED_SMIN[fmt]) {
+ temp = (int64_t)FIXED_SMAX[fmt - 1];
ouflag = 1;
}
break;
case MODE_R:
temp = a_values[i] * b_values[i] << 1;
- if( a_values[i] == FIXED_SMIN[fmt] && b_values[i] == FIXED_SMIN[fmt] )
- {
- temp = (int64_t)FIXED_SMAX[fmt-1];
+ if (a_values[i] == FIXED_SMIN[fmt] &&
+ b_values[i] == FIXED_SMIN[fmt]) {
+ temp = (int64_t)FIXED_SMAX[fmt - 1];
ouflag = 1;
}
break;
temp += dspac;
- if( saturate )
- temp = dspSaturate( temp, fmt-1, SIGNED, &ouflag );
- if( ouflag )
- *dspctl = insertBits( *dspctl, 16+ac, 16+ac, 1 );
+ if (saturate)
+ temp = dspSaturate(temp, fmt - 1, SIGNED, &ouflag);
+ if (ouflag)
+ *dspctl = insertBits(*dspctl, 16 + ac, 16 + ac, 1);
}
return temp;
}
int64_t
-MipsISA::dspMulsa( int64_t dspac, int32_t a, int32_t b, int32_t ac, int32_t fmt )
+MipsISA::dspMulsa(int64_t dspac, int32_t a, int32_t b, int32_t ac, int32_t fmt)
{
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, SIGNED );
- simdUnpack( b, b_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
+ simdUnpack(b, b_values, fmt, SIGNED);
dspac += a_values[1] * b_values[1] - a_values[0] * b_values[0];
}
int64_t
-MipsISA::dspMulsaq( int64_t dspac, int32_t a, int32_t b, int32_t ac, int32_t fmt, uint32_t *dspctl )
+MipsISA::dspMulsaq(int64_t dspac, int32_t a, int32_t b, int32_t ac,
+ int32_t fmt, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- int64_t temp[2];
+ int64_t temp[2] = {0, 0};
uint32_t ouflag = 0;
- simdUnpack( a, a_values, fmt, SIGNED );
- simdUnpack( b, b_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
+ simdUnpack(b, b_values, fmt, SIGNED);
- for( i=nvals-1; i>-1; i-- )
- {
+ for (int i = nvals - 1; i > -1; i--) {
temp[i] = a_values[i] * b_values[i] << 1;
- if( a_values[i] == FIXED_SMIN[fmt] &&
- b_values[i] == FIXED_SMIN[fmt] )
- {
- temp[i] = FIXED_SMAX[fmt-1];
+ if (a_values[i] == FIXED_SMIN[fmt] && b_values[i] == FIXED_SMIN[fmt]) {
+ temp[i] = FIXED_SMAX[fmt - 1];
ouflag = 1;
}
}
dspac += temp[1] - temp[0];
- if( ouflag )
- *dspctl = insertBits( *dspctl, 16+ac, 16+ac, 1 );
+ if (ouflag)
+ *dspctl = insertBits(*dspctl, 16 + ac, 16 + ac, 1);
return dspac;
}
void
-MipsISA::dspCmp( int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op, uint32_t *dspctl )
+MipsISA::dspCmp(int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op,
+ uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int ccond = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<nvals; i++ )
- {
+ for (int i = 0; i < nvals; i++) {
int cc = 0;
- switch( op )
- {
- case CMP_EQ: cc = ( a_values[i] == b_values[i] ); break;
- case CMP_LT: cc = ( a_values[i] < b_values[i] ); break;
- case CMP_LE: cc = ( a_values[i] <= b_values[i] ); break;
+ switch (op) {
+ case CMP_EQ:
+ cc = (a_values[i] == b_values[i]);
+ break;
+ case CMP_LT:
+ cc = (a_values[i] < b_values[i]);
+ break;
+ case CMP_LE:
+ cc = (a_values[i] <= b_values[i]);
+ break;
}
- ccond |= cc << ( DSP_CTL_POS[DSP_CCOND] + i );
+ ccond |= cc << (DSP_CTL_POS[DSP_CCOND] + i);
}
- writeDSPControl( dspctl, ccond, 1<<DSP_CCOND );
+ writeDSPControl(dspctl, ccond, 1 << DSP_CCOND);
}
int32_t
-MipsISA::dspCmpg( int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op )
+MipsISA::dspCmpg(int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<nvals; i++ )
- {
+ for (int i = 0; i < nvals; i++) {
int cc = 0;
- switch( op )
- {
- case CMP_EQ: cc = ( a_values[i] == b_values[i] ); break;
- case CMP_LT: cc = ( a_values[i] < b_values[i] ); break;
- case CMP_LE: cc = ( a_values[i] <= b_values[i] ); break;
+ switch (op) {
+ case CMP_EQ:
+ cc = (a_values[i] == b_values[i]);
+ break;
+ case CMP_LT:
+ cc = (a_values[i] < b_values[i]);
+ break;
+ case CMP_LE:
+ cc = (a_values[i] <= b_values[i]);
+ break;
}
result |= cc << i;
}
- return( result );
+ return result;
}
int32_t
-MipsISA::dspCmpgd( int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op, uint32_t *dspctl )
+MipsISA::dspCmpgd(int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op,
+ uint32_t *dspctl)
{
- int i = 0;;
int nvals = SIMD_NVALS[fmt];
int32_t result = 0;
int ccond = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, sign );
- simdUnpack( b, b_values, fmt, sign );
+ simdUnpack(a, a_values, fmt, sign);
+ simdUnpack(b, b_values, fmt, sign);
- for( i=0; i<nvals; i++ )
- {
- int cc = 0;;
+ for (int i = 0; i < nvals; i++) {
+ int cc = 0;
- switch( op )
- {
- case CMP_EQ: cc = ( a_values[i] == b_values[i] ); break;
- case CMP_LT: cc = ( a_values[i] < b_values[i] ); break;
- case CMP_LE: cc = ( a_values[i] <= b_values[i] ); break;
+ switch (op) {
+ case CMP_EQ:
+ cc = (a_values[i] == b_values[i]);
+ break;
+ case CMP_LT:
+ cc = (a_values[i] < b_values[i]);
+ break;
+ case CMP_LE:
+ cc = (a_values[i] <= b_values[i]);
+ break;
}
result |= cc << i;
- ccond |= cc << ( DSP_CTL_POS[DSP_CCOND] + i );
+ ccond |= cc << (DSP_CTL_POS[DSP_CCOND] + i);
}
- writeDSPControl( dspctl, ccond, 1<<DSP_CCOND );
+ writeDSPControl(dspctl, ccond, 1 << DSP_CCOND);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspPrece( int32_t a, int32_t infmt, int32_t insign, int32_t outfmt, int32_t outsign, int32_t mode )
+MipsISA::dspPrece(int32_t a, int32_t infmt, int32_t insign, int32_t outfmt,
+ int32_t outsign, int32_t mode)
{
- int i = 0;
int sa = 0;
int ninvals = SIMD_NVALS[infmt];
int noutvals = SIMD_NVALS[outfmt];
uint64_t in_values[SIMD_MAX_VALS];
uint64_t out_values[SIMD_MAX_VALS];
- if( insign == SIGNED && outsign == SIGNED )
+ if (insign == SIGNED && outsign == SIGNED)
sa = SIMD_NBITS[infmt];
- else if( insign == UNSIGNED && outsign == SIGNED )
+ else if (insign == UNSIGNED && outsign == SIGNED)
sa = SIMD_NBITS[infmt] - 1;
- else if( insign == UNSIGNED && outsign == UNSIGNED )
+ else if (insign == UNSIGNED && outsign == UNSIGNED)
sa = 0;
- simdUnpack( a, in_values, infmt, insign );
+ simdUnpack(a, in_values, infmt, insign);
- for( i=0; i<noutvals; i++ )
- {
- switch( mode )
- {
- case MODE_L: out_values[i] = in_values[i+(ninvals>>1)] << sa; break;
- case MODE_R: out_values[i] = in_values[i] << sa; break;
- case MODE_LA: out_values[i] = in_values[(i<<1)+1] << sa; break;
- case MODE_RA: out_values[i] = in_values[i<<1] << sa; break;
+ for (int i = 0; i<noutvals; i++) {
+ switch (mode) {
+ case MODE_L:
+ out_values[i] = in_values[i + (ninvals >> 1)] << sa;
+ break;
+ case MODE_R:
+ out_values[i] = in_values[i] << sa;
+ break;
+ case MODE_LA:
+ out_values[i] = in_values[(i << 1) + 1] << sa;
+ break;
+ case MODE_RA:
+ out_values[i] = in_values[i << 1] << sa;
+ break;
}
}
- simdPack( out_values, &result, outfmt );
+ simdPack(out_values, &result, outfmt);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspPrecrqu( int32_t a, int32_t b, uint32_t *dspctl )
+MipsISA::dspPrecrqu(int32_t a, int32_t b, uint32_t *dspctl)
{
- int i = 0;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
uint64_t r_values[SIMD_MAX_VALS];
uint32_t ouflag = 0;
int32_t result = 0;
- simdUnpack( a, a_values, SIMD_FMT_PH, SIGNED );
- simdUnpack( b, b_values, SIMD_FMT_PH, SIGNED );
+ simdUnpack(a, a_values, SIMD_FMT_PH, SIGNED);
+ simdUnpack(b, b_values, SIMD_FMT_PH, SIGNED);
- for( i=0; i<2; i++ )
- {
- r_values[i] = dspSaturate( (int64_t)b_values[i] >> SIMD_NBITS[SIMD_FMT_QB] - 1,
- SIMD_FMT_QB, UNSIGNED, &ouflag );
- r_values[i+2] = dspSaturate( (int64_t)a_values[i] >> SIMD_NBITS[SIMD_FMT_QB] - 1,
- SIMD_FMT_QB, UNSIGNED, &ouflag );
+ for (int i = 0; i<2; i++) {
+ r_values[i] =
+ dspSaturate((int64_t)b_values[i] >> (SIMD_NBITS[SIMD_FMT_QB] - 1),
+ SIMD_FMT_QB, UNSIGNED, &ouflag);
+ r_values[i + 2] =
+ dspSaturate((int64_t)a_values[i] >> (SIMD_NBITS[SIMD_FMT_QB] - 1),
+ SIMD_FMT_QB, UNSIGNED, &ouflag);
}
- simdPack( r_values, &result, SIMD_FMT_QB );
+ simdPack(r_values, &result, SIMD_FMT_QB);
- if( ouflag )
- *dspctl = insertBits( *dspctl, 22, 22, 1 );
+ if (ouflag)
+ *dspctl = insertBits(*dspctl, 22, 22, 1);
return result;
}
int32_t
-MipsISA::dspPrecrq( int32_t a, int32_t b, int32_t fmt, uint32_t *dspctl )
+MipsISA::dspPrecrq(int32_t a, int32_t b, int32_t fmt, uint32_t *dspctl)
{
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
uint32_t ouflag = 0;
int32_t result;
- simdUnpack( a, a_values, fmt, SIGNED );
- simdUnpack( b, b_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
+ simdUnpack(b, b_values, fmt, SIGNED);
- r_values[1] = dspSaturate( (int64_t)addHalfLsb( a_values[0], 16 ) >> 16,
- fmt+1, SIGNED, &ouflag );
- r_values[0] = dspSaturate( (int64_t)addHalfLsb( b_values[0], 16 ) >> 16,
- fmt+1, SIGNED, &ouflag );
+ r_values[1] = dspSaturate((int64_t)addHalfLsb(a_values[0], 16) >> 16,
+ fmt + 1, SIGNED, &ouflag);
+ r_values[0] = dspSaturate((int64_t)addHalfLsb(b_values[0], 16) >> 16,
+ fmt + 1, SIGNED, &ouflag);
- simdPack( r_values, &result, fmt+1 );
+ simdPack(r_values, &result, fmt + 1);
- if( ouflag )
- *dspctl = insertBits( *dspctl, 22, 22, 1 );
+ if (ouflag)
+ *dspctl = insertBits(*dspctl, 22, 22, 1);
return result;
}
int32_t
-MipsISA::dspPrecrSra( int32_t a, int32_t b, int32_t sa, int32_t fmt, int32_t round )
+MipsISA::dspPrecrSra(int32_t a, int32_t b, int32_t sa, int32_t fmt,
+ int32_t round)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
uint64_t c_values[SIMD_MAX_VALS];
int32_t result = 0;
- simdUnpack( a, a_values, fmt, SIGNED );
- simdUnpack( b, b_values, fmt, SIGNED );
+ simdUnpack(a, a_values, fmt, SIGNED);
+ simdUnpack(b, b_values, fmt, SIGNED);
- for( i=0; i<nvals; i++ )
- {
- if( round )
- {
- c_values[i] = addHalfLsb( b_values[i], sa ) >> sa;
- c_values[i+1] = addHalfLsb( a_values[i], sa ) >> sa;
- }
- else
- {
+ for (int i = 0; i < nvals; i++) {
+ if (round) {
+ c_values[i] = addHalfLsb(b_values[i], sa) >> sa;
+ c_values[i + 1] = addHalfLsb(a_values[i], sa) >> sa;
+ } else {
c_values[i] = b_values[i] >> sa;
- c_values[i+1] = a_values[i] >> sa;
+ c_values[i + 1] = a_values[i] >> sa;
}
}
- simdPack( c_values, &result, fmt+1 );
+ simdPack(c_values, &result, fmt + 1);
return result;
}
int32_t
-MipsISA::dspPick( int32_t a, int32_t b, int32_t fmt, uint32_t *dspctl )
+MipsISA::dspPick(int32_t a, int32_t b, int32_t fmt, uint32_t *dspctl)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int32_t result;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
uint64_t c_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, UNSIGNED );
- simdUnpack( b, b_values, fmt, UNSIGNED );
+ simdUnpack(a, a_values, fmt, UNSIGNED);
+ simdUnpack(b, b_values, fmt, UNSIGNED);
- for( i=0; i<nvals; i++ )
- {
+ for (int i = 0; i < nvals; i++) {
int condbit = DSP_CTL_POS[DSP_CCOND] + i;
- if( bits( *dspctl, condbit, condbit ) == 1 )
+ if (bits(*dspctl, condbit, condbit) == 1)
c_values[i] = a_values[i];
else
c_values[i] = b_values[i];
}
- simdPack( c_values, &result, fmt );
+ simdPack(c_values, &result, fmt);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspPack( int32_t a, int32_t b, int32_t fmt )
+MipsISA::dspPack(int32_t a, int32_t b, int32_t fmt)
{
int32_t result;
uint64_t a_values[SIMD_MAX_VALS];
uint64_t b_values[SIMD_MAX_VALS];
uint64_t c_values[SIMD_MAX_VALS];
- simdUnpack( a, a_values, fmt, UNSIGNED );
- simdUnpack( b, b_values, fmt, UNSIGNED );
+ simdUnpack(a, a_values, fmt, UNSIGNED);
+ simdUnpack(b, b_values, fmt, UNSIGNED);
c_values[0] = b_values[1];
c_values[1] = a_values[0];
- simdPack( c_values, &result, fmt );
+ simdPack(c_values, &result, fmt);
- return( result );
+ return result;
}
int32_t
-MipsISA::dspExtr( int64_t dspac, int32_t fmt, int32_t sa, int32_t round, int32_t saturate, uint32_t *dspctl )
+MipsISA::dspExtr(int64_t dspac, int32_t fmt, int32_t sa, int32_t round,
+ int32_t saturate, uint32_t *dspctl)
{
int32_t result = 0;
uint32_t ouflag = 0;
int64_t temp = 0;
- sa = bits( sa, 4, 0 );
+ sa = bits(sa, 4, 0);
- if( sa > 0 )
- {
- if( round )
- {
- temp = (int64_t)addHalfLsb( dspac, sa );
+ if (sa > 0) {
+ if (round) {
+ temp = (int64_t)addHalfLsb(dspac, sa);
- if( dspac > 0 && temp < 0 )
- {
+ if (dspac > 0 && temp < 0) {
ouflag = 1;
- if( saturate )
+ if (saturate)
temp = FIXED_SMAX[SIMD_FMT_L];
}
temp = temp >> sa;
- }
- else
+ } else {
temp = dspac >> sa;
- }
- else
+ }
+ } else {
temp = dspac;
+ }
- dspac = checkOverflow( dspac, fmt, SIGNED, &ouflag );
+ dspac = checkOverflow(dspac, fmt, SIGNED, &ouflag);
- if( ouflag )
- {
- *dspctl = insertBits( *dspctl, 23, 23, ouflag );
+ if (ouflag) {
+ *dspctl = insertBits(*dspctl, 23, 23, ouflag);
- if( saturate )
- result = (int32_t)dspSaturate( temp, fmt, SIGNED, &ouflag );
+ if (saturate)
+ result = (int32_t)dspSaturate(temp, fmt, SIGNED, &ouflag);
else
result = (int32_t)temp;
- }
- else
+ } else {
result = (int32_t)temp;
+ }
- return( result );
+ return result;
}
int32_t
-MipsISA::dspExtp( int64_t dspac, int32_t size, uint32_t *dspctl )
+MipsISA::dspExtp(int64_t dspac, int32_t size, uint32_t *dspctl)
{
int32_t pos = 0;
int32_t result = 0;
- pos = bits( *dspctl, 5, 0 );
- size = bits( size, 4, 0 );
+ pos = bits(*dspctl, 5, 0);
+ size = bits(size, 4, 0);
- if( pos - (size+1) >= -1 )
- {
- result = bits( dspac, pos, pos-size );
- *dspctl = insertBits( *dspctl, 14, 14, 0 );
- }
- else
- {
+ if (pos - (size + 1) >= -1) {
+ result = bits(dspac, pos, pos - size);
+ *dspctl = insertBits(*dspctl, 14, 14, 0);
+ } else {
result = 0;
- *dspctl = insertBits( *dspctl, 14, 14, 1 );
+ *dspctl = insertBits(*dspctl, 14, 14, 1);
}
- return( result );
+ return result;
}
int32_t
-MipsISA::dspExtpd( int64_t dspac, int32_t size, uint32_t *dspctl )
+MipsISA::dspExtpd(int64_t dspac, int32_t size, uint32_t *dspctl)
{
int32_t pos = 0;
int32_t result = 0;
- pos = bits( *dspctl, 5, 0 );
- size = bits( size, 4, 0 );
-
- if( pos - (size+1) >= -1 )
- {
- result = bits( dspac, pos, pos-size );
- *dspctl = insertBits( *dspctl, 14, 14, 0 );
- if( pos - (size+1) >= 0 )
- *dspctl = insertBits( *dspctl, 5, 0, pos - (size+1) );
- else if( (pos - (size+1)) == -1 )
- *dspctl = insertBits( *dspctl, 5, 0, 63 );
- }
- else
- {
+ pos = bits(*dspctl, 5, 0);
+ size = bits(size, 4, 0);
+
+ if (pos - (size + 1) >= -1) {
+ result = bits(dspac, pos, pos - size);
+ *dspctl = insertBits(*dspctl, 14, 14, 0);
+ if (pos - (size + 1) >= 0)
+ *dspctl = insertBits(*dspctl, 5, 0, pos - (size + 1));
+ else if ((pos - (size + 1)) == -1)
+ *dspctl = insertBits(*dspctl, 5, 0, 63);
+ } else {
result = 0;
- *dspctl = insertBits( *dspctl, 14, 14, 1 );
+ *dspctl = insertBits(*dspctl, 14, 14, 1);
}
- return( result );
+ return result;
}
void
-MipsISA::simdPack( uint64_t *values_ptr, int32_t *reg, int32_t fmt )
+MipsISA::simdPack(uint64_t *values_ptr, int32_t *reg, int32_t fmt)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int nbits = SIMD_NBITS[fmt];
*reg = 0;
- for( i=0; i<nvals; i++ )
- *reg |= (int32_t)bits( values_ptr[i], nbits-1, 0 ) << nbits*i;
+ for (int i = 0; i < nvals; i++)
+ *reg |= (int32_t)bits(values_ptr[i], nbits - 1, 0) << nbits * i;
}
void
-MipsISA::simdUnpack( int32_t reg, uint64_t *values_ptr, int32_t fmt, int32_t sign )
+MipsISA::simdUnpack(int32_t reg, uint64_t *values_ptr, int32_t fmt, int32_t sign)
{
- int i = 0;
int nvals = SIMD_NVALS[fmt];
int nbits = SIMD_NBITS[fmt];
- switch( sign )
- {
- case SIGNED:
- for( i=0; i<nvals; i++ )
- {
- values_ptr[i] = (uint64_t)bits( reg, nbits*(i+1)-1, nbits*i );
- values_ptr[i] = signExtend( values_ptr[i], fmt );
+ switch (sign) {
+ case SIGNED:
+ for (int i = 0; i < nvals; i++) {
+ uint64_t tmp = (uint64_t)bits(reg, nbits * (i + 1) - 1, nbits * i);
+ values_ptr[i] = signExtend(tmp, fmt);
}
break;
- case UNSIGNED:
- for( i=0; i<nvals; i++ )
- {
- values_ptr[i] = (uint64_t)bits( reg, nbits*(i+1)-1, nbits*i );
+ case UNSIGNED:
+ for (int i = 0; i < nvals; i++) {
+ values_ptr[i] =
+ (uint64_t)bits(reg, nbits * (i + 1) - 1, nbits * i);
}
break;
}
}
void
-MipsISA::writeDSPControl( uint32_t *dspctl, uint32_t value, uint32_t mask )
+MipsISA::writeDSPControl(uint32_t *dspctl, uint32_t value, uint32_t mask)
{
uint32_t fmask = 0;
- if( mask & 0x01 ) fmask |= DSP_CTL_MASK[DSP_POS];
- if( mask & 0x02 ) fmask |= DSP_CTL_MASK[DSP_SCOUNT];
- if( mask & 0x04 ) fmask |= DSP_CTL_MASK[DSP_C];
- if( mask & 0x08 ) fmask |= DSP_CTL_MASK[DSP_OUFLAG];
- if( mask & 0x10 ) fmask |= DSP_CTL_MASK[DSP_CCOND];
- if( mask & 0x20 ) fmask |= DSP_CTL_MASK[DSP_EFI];
+ if (mask & 0x01) fmask |= DSP_CTL_MASK[DSP_POS];
+ if (mask & 0x02) fmask |= DSP_CTL_MASK[DSP_SCOUNT];
+ if (mask & 0x04) fmask |= DSP_CTL_MASK[DSP_C];
+ if (mask & 0x08) fmask |= DSP_CTL_MASK[DSP_OUFLAG];
+ if (mask & 0x10) fmask |= DSP_CTL_MASK[DSP_CCOND];
+ if (mask & 0x20) fmask |= DSP_CTL_MASK[DSP_EFI];
*dspctl &= ~fmask;
value &= fmask;
}
uint32_t
-MipsISA::readDSPControl( uint32_t *dspctl, uint32_t mask )
+MipsISA::readDSPControl(uint32_t *dspctl, uint32_t mask)
{
uint32_t fmask = 0;
- if( mask & 0x01 ) fmask |= DSP_CTL_MASK[DSP_POS];
- if( mask & 0x02 ) fmask |= DSP_CTL_MASK[DSP_SCOUNT];
- if( mask & 0x04 ) fmask |= DSP_CTL_MASK[DSP_C];
- if( mask & 0x08 ) fmask |= DSP_CTL_MASK[DSP_OUFLAG];
- if( mask & 0x10 ) fmask |= DSP_CTL_MASK[DSP_CCOND];
- if( mask & 0x20 ) fmask |= DSP_CTL_MASK[DSP_EFI];
+ if (mask & 0x01) fmask |= DSP_CTL_MASK[DSP_POS];
+ if (mask & 0x02) fmask |= DSP_CTL_MASK[DSP_SCOUNT];
+ if (mask & 0x04) fmask |= DSP_CTL_MASK[DSP_C];
+ if (mask & 0x08) fmask |= DSP_CTL_MASK[DSP_OUFLAG];
+ if (mask & 0x10) fmask |= DSP_CTL_MASK[DSP_CCOND];
+ if (mask & 0x20) fmask |= DSP_CTL_MASK[DSP_EFI];
- return( *dspctl & fmask );
+ return *dspctl & fmask;
}
projects / gem5.git / blobdiff