AI Engine Intrinsics User Guide  (AIE) r2p23
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Overview

16 bit real by 16 bit complex using no conjugation

Functions

v4cacc48 mac4 (v4cacc48 acc, v64int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-accumulate intrinsic function .
 
v4cacc48 mac4 (v4cacc48 acc, v32int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-accumulate intrinsic function using small X input buffer.
 
v8cacc48 mac8 (v8cacc48 acc, v64int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-accumulate intrinsic function .
 
v8cacc48 mac8 (v8cacc48 acc, v32int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-accumulate intrinsic function using small X input buffer.
 
v4cacc48 msc4 (v4cacc48 acc, v64int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-subtract intrinsic function .
 
v4cacc48 msc4 (v4cacc48 acc, v32int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-subtract intrinsic function using small X input buffer.
 
v8cacc48 msc8 (v8cacc48 acc, v64int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-subtract intrinsic function .
 
v8cacc48 msc8 (v8cacc48 acc, v32int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-subtract intrinsic function using small X input buffer.
 
v4cacc48 mul4 (v64int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply intrinsic function .
 
v4cacc48 mul4 (v32int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply intrinsic function using small X input buffer.
 
v8cacc48 mul8 (v64int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply intrinsic function .
 
v8cacc48 mul8 (v32int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply intrinsic function using small X input buffer.
 
v4cacc48 negmul4 (v64int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-negate intrinsic function .
 
v4cacc48 negmul4 (v32int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-negate intrinsic function using small X input buffer.
 
v8cacc48 negmul8 (v64int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-negate intrinsic function .
 
v8cacc48 negmul8 (v32int16 xbuff, int xstart, unsigned int xoffsets, int xstep, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
 Complex multiply-negate intrinsic function using small X input buffer.
 

Function Documentation

v4cacc48 mac4 ( v4cacc48  acc,
v64int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-accumulate intrinsic function .

acc0 += z00*x00 + z01*x01 + z02*x02 + z03*x03
acc1 += z10*x10 + z11*x11 + z12*x12 + z13*x13
acc2 += z20*x20 + z21*x21 + z22*x22 + z23*x23
acc3 += z30*x30 + z31*x31 + z32*x32 + z33*x33
Returns
Returned accumulation vector (4 x cint48 lanes)
Parameters
accIncoming accumulation vector (4 x cint48 lanes)
xbuffInput buffer of 64 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v4cacc48 mac4 ( v4cacc48  acc,
v32int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-accumulate intrinsic function using small X input buffer.

acc0 += z00*x00 + z01*x01 + z02*x02 + z03*x03
acc1 += z10*x10 + z11*x11 + z12*x12 + z13*x13
acc2 += z20*x20 + z21*x21 + z22*x22 + z23*x23
acc3 += z30*x30 + z31*x31 + z32*x32 + z33*x33
Returns
Returned accumulation vector (4 x cint48 lanes)
Parameters
accIncoming accumulation vector (4 x cint48 lanes)
xbuffInput buffer of 32 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v8cacc48 mac8 ( v8cacc48  acc,
v64int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-accumulate intrinsic function .

acc0 += z00*x00 + z01*x01
acc1 += z10*x10 + z11*x11
acc2 += z20*x20 + z21*x21
acc3 += z30*x30 + z31*x31
acc4 += z40*x40 + z41*x41
acc5 += z50*x50 + z51*x51
acc6 += z60*x60 + z61*x61
acc7 += z70*x70 + z71*x71
Returns
Returned accumulation vector (8 x cint48 lanes)
Parameters
accIncoming accumulation vector (8 x cint48 lanes)
xbuffInput buffer of 64 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v8cacc48 mac8 ( v8cacc48  acc,
v32int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-accumulate intrinsic function using small X input buffer.

acc0 += z00*x00 + z01*x01
acc1 += z10*x10 + z11*x11
acc2 += z20*x20 + z21*x21
acc3 += z30*x30 + z31*x31
acc4 += z40*x40 + z41*x41
acc5 += z50*x50 + z51*x51
acc6 += z60*x60 + z61*x61
acc7 += z70*x70 + z71*x71
Returns
Returned accumulation vector (8 x cint48 lanes)
Parameters
accIncoming accumulation vector (8 x cint48 lanes)
xbuffInput buffer of 32 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v4cacc48 msc4 ( v4cacc48  acc,
v64int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-subtract intrinsic function .

acc0 -= z00*x00 + z01*x01 + z02*x02 + z03*x03
acc1 -= z10*x10 + z11*x11 + z12*x12 + z13*x13
acc2 -= z20*x20 + z21*x21 + z22*x22 + z23*x23
acc3 -= z30*x30 + z31*x31 + z32*x32 + z33*x33
Returns
Returned accumulation vector (4 x cint48 lanes)
Parameters
accIncoming accumulation vector (4 x cint48 lanes)
xbuffInput buffer of 64 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v4cacc48 msc4 ( v4cacc48  acc,
v32int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-subtract intrinsic function using small X input buffer.

acc0 -= z00*x00 + z01*x01 + z02*x02 + z03*x03
acc1 -= z10*x10 + z11*x11 + z12*x12 + z13*x13
acc2 -= z20*x20 + z21*x21 + z22*x22 + z23*x23
acc3 -= z30*x30 + z31*x31 + z32*x32 + z33*x33
Returns
Returned accumulation vector (4 x cint48 lanes)
Parameters
accIncoming accumulation vector (4 x cint48 lanes)
xbuffInput buffer of 32 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v8cacc48 msc8 ( v8cacc48  acc,
v64int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-subtract intrinsic function .

acc0 -= z00*x00 + z01*x01
acc1 -= z10*x10 + z11*x11
acc2 -= z20*x20 + z21*x21
acc3 -= z30*x30 + z31*x31
acc4 -= z40*x40 + z41*x41
acc5 -= z50*x50 + z51*x51
acc6 -= z60*x60 + z61*x61
acc7 -= z70*x70 + z71*x71
Returns
Returned accumulation vector (8 x cint48 lanes)
Parameters
accIncoming accumulation vector (8 x cint48 lanes)
xbuffInput buffer of 64 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v8cacc48 msc8 ( v8cacc48  acc,
v32int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-subtract intrinsic function using small X input buffer.

acc0 -= z00*x00 + z01*x01
acc1 -= z10*x10 + z11*x11
acc2 -= z20*x20 + z21*x21
acc3 -= z30*x30 + z31*x31
acc4 -= z40*x40 + z41*x41
acc5 -= z50*x50 + z51*x51
acc6 -= z60*x60 + z61*x61
acc7 -= z70*x70 + z71*x71
Returns
Returned accumulation vector (8 x cint48 lanes)
Parameters
accIncoming accumulation vector (8 x cint48 lanes)
xbuffInput buffer of 32 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v4cacc48 mul4 ( v64int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply intrinsic function .

acc0 = z00*x00 + z01*x01 + z02*x02 + z03*x03
acc1 = z10*x10 + z11*x11 + z12*x12 + z13*x13
acc2 = z20*x20 + z21*x21 + z22*x22 + z23*x23
acc3 = z30*x30 + z31*x31 + z32*x32 + z33*x33
Returns
Returned accumulation vector (4 x cint48 lanes)
Parameters
xbuffInput buffer of 64 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v4cacc48 mul4 ( v32int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply intrinsic function using small X input buffer.

acc0 = z00*x00 + z01*x01 + z02*x02 + z03*x03
acc1 = z10*x10 + z11*x11 + z12*x12 + z13*x13
acc2 = z20*x20 + z21*x21 + z22*x22 + z23*x23
acc3 = z30*x30 + z31*x31 + z32*x32 + z33*x33
Returns
Returned accumulation vector (4 x cint48 lanes)
Parameters
xbuffInput buffer of 32 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v8cacc48 mul8 ( v64int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply intrinsic function .

acc0 = z00*x00 + z01*x01
acc1 = z10*x10 + z11*x11
acc2 = z20*x20 + z21*x21
acc3 = z30*x30 + z31*x31
acc4 = z40*x40 + z41*x41
acc5 = z50*x50 + z51*x51
acc6 = z60*x60 + z61*x61
acc7 = z70*x70 + z71*x71
Returns
Returned accumulation vector (8 x cint48 lanes)
Parameters
xbuffInput buffer of 64 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v8cacc48 mul8 ( v32int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply intrinsic function using small X input buffer.

acc0 = z00*x00 + z01*x01
acc1 = z10*x10 + z11*x11
acc2 = z20*x20 + z21*x21
acc3 = z30*x30 + z31*x31
acc4 = z40*x40 + z41*x41
acc5 = z50*x50 + z51*x51
acc6 = z60*x60 + z61*x61
acc7 = z70*x70 + z71*x71
Returns
Returned accumulation vector (8 x cint48 lanes)
Parameters
xbuffInput buffer of 32 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v4cacc48 negmul4 ( v64int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-negate intrinsic function .

acc0 = -( z00*x00 + z01*x01 + z02*x02 + z03*x03 )
acc1 = -( z10*x10 + z11*x11 + z12*x12 + z13*x13 )
acc2 = -( z20*x20 + z21*x21 + z22*x22 + z23*x23 )
acc3 = -( z30*x30 + z31*x31 + z32*x32 + z33*x33 )
Returns
Returned accumulation vector (4 x cint48 lanes)
Parameters
xbuffInput buffer of 64 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v4cacc48 negmul4 ( v32int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-negate intrinsic function using small X input buffer.

acc0 = -( z00*x00 + z01*x01 + z02*x02 + z03*x03 )
acc1 = -( z10*x10 + z11*x11 + z12*x12 + z13*x13 )
acc2 = -( z20*x20 + z21*x21 + z22*x22 + z23*x23 )
acc3 = -( z30*x30 + z31*x31 + z32*x32 + z33*x33 )
Returns
Returned accumulation vector (4 x cint48 lanes)
Parameters
xbuffInput buffer of 32 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v8cacc48 negmul8 ( v64int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-negate intrinsic function .

acc0 = -( z00*x00 + z01*x01 )
acc1 = -( z10*x10 + z11*x11 )
acc2 = -( z20*x20 + z21*x21 )
acc3 = -( z30*x30 + z31*x31 )
acc4 = -( z40*x40 + z41*x41 )
acc5 = -( z50*x50 + z51*x51 )
acc6 = -( z60*x60 + z61*x61 )
acc7 = -( z70*x70 + z71*x71 )
Returns
Returned accumulation vector (8 x cint48 lanes)
Parameters
xbuffInput buffer of 64 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.
v8cacc48 negmul8 ( v32int16  xbuff,
int  xstart,
unsigned int  xoffsets,
int  xstep,
v8cint16  zbuff,
int  zstart,
unsigned int  zoffsets,
int  zstep 
)

Complex multiply-negate intrinsic function using small X input buffer.

acc0 = -( z00*x00 + z01*x01 )
acc1 = -( z10*x10 + z11*x11 )
acc2 = -( z20*x20 + z21*x21 )
acc3 = -( z30*x30 + z31*x31 )
acc4 = -( z40*x40 + z41*x41 )
acc5 = -( z50*x50 + z51*x51 )
acc6 = -( z60*x60 + z61*x61 )
acc7 = -( z70*x70 + z71*x71 )
Returns
Returned accumulation vector (8 x cint48 lanes)
Parameters
xbuffInput buffer of 32 elements of type int16
xstartStarting position offset applied to all lanes of input from X buffer.
xoffsets4b offset for each lane, applied to the x buffer. LSB apply to first lane
xstepStep between each column for selection in the xbuffer.
zbuffInput buffer of 8 elements of type cint16
zstartStarting position offset applied to all lanes for input from Z buffer. This must be a compile time constant. Only the 4 LSB of the argument are used.
zoffsets4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstepStep between each column for selection in the zbuffer.
Note
  • For more information on how data selection works from the buffers go here. The data buffer and coefficient buffer in this intrinsic use the general scheme.
  • Parameter 'zstart' must be a compile time constant.