X buffer conjugation

Overview

16 bit complex by 16 bit complex using X buffer conjugation

Functions
v4cacc48	mac4_sym_ct_cn (v4cacc48 acc, v32cint16 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-accumulate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer .
v4cacc48	mac4_sym_ct_cn (v4cacc48 acc, v16cint16 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-accumulate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer using small X input buffer.
v4cacc48	mac4_sym_ct_cn (v4cacc48 acc, v16cint16 xbuff, int xstart, unsigned int xoffsets, v16cint16 ybuff, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-accumulate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x and y input buffers using small X input buffer.
v4cacc48	msc4_sym_ct_cn (v4cacc48 acc, v32cint16 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-subtract intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer .
v4cacc48	msc4_sym_ct_cn (v4cacc48 acc, v16cint16 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-subtract intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer using small X input buffer.
v4cacc48	msc4_sym_ct_cn (v4cacc48 acc, v16cint16 xbuff, int xstart, unsigned int xoffsets, v16cint16 ybuff, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-subtract intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x and y input buffers using small X input buffer.
v4cacc48	mul4_sym_ct_cn (v32cint16 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer .
v4cacc48	mul4_sym_ct_cn (v16cint16 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer using small X input buffer.
v4cacc48	mul4_sym_ct_cn (v16cint16 xbuff, int xstart, unsigned int xoffsets, v16cint16 ybuff, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x and y input buffers using small X input buffer.
v4cacc48	negmul4_sym_ct_cn (v32cint16 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-negate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer .
v4cacc48	negmul4_sym_ct_cn (v16cint16 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-negate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer using small X input buffer.
v4cacc48	negmul4_sym_ct_cn (v16cint16 xbuff, int xstart, unsigned int xoffsets, v16cint16 ybuff, int ystart, unsigned int mtap, v8cint16 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex symetric multiply-negate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x and y input buffers using small X input buffer.

Function Documentation

v4cacc48 mac4_sym_ct_cn	(	v4cacc48	acc,
		v32cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-accumulate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer .

acc0 += z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 += z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 += z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 += z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
acc	v4cacc48	Incoming accumulation vector (4 x cint48 lanes)
xbuff	v32cint16	Input buffer of 32 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v4cacc48	acc,
		v16cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-accumulate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer using small X input buffer.

acc0 += z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 += z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 += z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 += z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
acc	v4cacc48	Incoming accumulation vector (4 x cint48 lanes)
xbuff	v16cint16	Input buffer of 16 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v4cacc48	acc,
		v16cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		v16cint16	ybuff,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-accumulate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x and y input buffers using small X input buffer.

acc0 += z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 += z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 += z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 += z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
acc	v4cacc48	Incoming accumulation vector (4 x cint48 lanes)
xbuff	v16cint16	Input buffer of 16 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ybuff	v16cint16	Right input buffer of 16 elements of type cint16
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v4cacc48	acc,
		v32cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-subtract intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer .

acc0 -= z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 -= z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 -= z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 -= z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
acc	v4cacc48	Incoming accumulation vector (4 x cint48 lanes)
xbuff	v32cint16	Input buffer of 32 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v4cacc48	acc,
		v16cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-subtract intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer using small X input buffer.

acc0 -= z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 -= z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 -= z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 -= z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
acc	v4cacc48	Incoming accumulation vector (4 x cint48 lanes)
xbuff	v16cint16	Input buffer of 16 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v4cacc48	acc,
		v16cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		v16cint16	ybuff,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-subtract intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x and y input buffers using small X input buffer.

acc0 -= z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 -= z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 -= z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 -= z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
acc	v4cacc48	Incoming accumulation vector (4 x cint48 lanes)
xbuff	v16cint16	Input buffer of 16 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ybuff	v16cint16	Right input buffer of 16 elements of type cint16
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v32cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer .

acc0 = z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 = z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 = z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 = z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
xbuff	v32cint16	Input buffer of 32 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v16cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer using small X input buffer.

acc0 = z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 = z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 = z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 = z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
xbuff	v16cint16	Input buffer of 16 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v16cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		v16cint16	ybuff,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x and y input buffers using small X input buffer.

acc0 = z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01)
acc1 = z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11)
acc2 = z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21)
acc3 = z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31)

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
xbuff	v16cint16	Input buffer of 16 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ybuff	v16cint16	Right input buffer of 16 elements of type cint16
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v32cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-negate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer .

acc0 = -( z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01) )
acc1 = -( z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11) )
acc2 = -( z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21) )
acc3 = -( z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31) )

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
xbuff	v32cint16	Input buffer of 32 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v16cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-negate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x input buffer using small X input buffer.

acc0 = -( z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01) )
acc1 = -( z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11) )
acc2 = -( z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21) )
acc3 = -( z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31) )

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
xbuff	v16cint16	Input buffer of 16 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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_sym_ct_cn	(	v16cint16	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		v16cint16	ybuff,
		int	ystart,
		unsigned int	mtap,
		v8cint16	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex symetric multiply-negate intrinsic function with center-tap optimization with x buffer conjugation with pre-add from x and y input buffers using small X input buffer.

acc0 = -( z00*(cnj(x00) + cnj(y00)) + z01*cnj(x01) )
acc1 = -( z10*(cnj(x10) + cnj(y10)) + z11*cnj(x11) )
acc2 = -( z20*(cnj(x20) + cnj(y20)) + z21*cnj(x21) )
acc3 = -( z30*(cnj(x30) + cnj(y30)) + z31*cnj(x31) )

Parameters

Input/Output	Type	Comments
return	v4cacc48	Returned accumulation vector (4 x cint48 lanes)
xbuff	v16cint16	Input buffer of 16 elements of type cint16
xstart	int	Starting position offset applied to all lanes of input from X buffer.
xoffsets	unsigned int	4b offset for each lane, applied to both x and y buffers. LSB apply to first lane
ybuff	v16cint16	Right input buffer of 16 elements of type cint16
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-adding relative to xstart
zbuff	v8cint16	Input buffer of 8 elements of type cint16
zstart	int	Starting 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.
zoffsets	unsigned int	4b offset for each lane, applied to input from Z buffer. LSB apply to first lane
zstep	int	Step 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.