Z buffer conjugation

Overview

32 bit real by 32 bit complex using Z buffer conjugation

Functions
v2cacc80	lmac2_antisym_ct_c (v2cacc80 acc, v32int32 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-accumulate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer .
v2cacc80	lmac2_antisym_ct_c (v2cacc80 acc, v16int32 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-accumulate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer using small X input buffer.
v2cacc80	lmac2_antisym_ct_c (v2cacc80 acc, v16int32 xbuff, int xstart, unsigned int xoffsets, v16int32 ybuff, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-accumulate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x and y input buffers using small X input buffer.
v2cacc80	lmsc2_antisym_ct_c (v2cacc80 acc, v32int32 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-subtract intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer .
v2cacc80	lmsc2_antisym_ct_c (v2cacc80 acc, v16int32 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-subtract intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer using small X input buffer.
v2cacc80	lmsc2_antisym_ct_c (v2cacc80 acc, v16int32 xbuff, int xstart, unsigned int xoffsets, v16int32 ybuff, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-subtract intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x and y input buffers using small X input buffer.
v2cacc80	lmul2_antisym_ct_c (v32int32 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer .
v2cacc80	lmul2_antisym_ct_c (v16int32 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer using small X input buffer.
v2cacc80	lmul2_antisym_ct_c (v16int32 xbuff, int xstart, unsigned int xoffsets, v16int32 ybuff, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x and y input buffers using small X input buffer.
v2cacc80	lnegmul2_antisym_ct_c (v32int32 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-negate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer .
v2cacc80	lnegmul2_antisym_ct_c (v16int32 xbuff, int xstart, unsigned int xoffsets, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-negate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer using small X input buffer.
v2cacc80	lnegmul2_antisym_ct_c (v16int32 xbuff, int xstart, unsigned int xoffsets, v16int32 ybuff, int ystart, unsigned int mtap, v4cint32 zbuff, int zstart, unsigned int zoffsets, int zstep)
	Complex anti-symmetric multiply-negate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x and y input buffers using small X input buffer.

Function Documentation

v2cacc80 lmac2_antisym_ct_c	(	v2cacc80	acc,
		v32int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-accumulate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer .

acc0 += cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 += cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
acc	v2cacc80	Incoming accumulation vector (2 x cint80 lanes)
xbuff	v32int32	Input buffer of 32 elements of type int32
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-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lmac2_antisym_ct_c	(	v2cacc80	acc,
		v16int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-accumulate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer using small X input buffer.

acc0 += cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 += cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
acc	v2cacc80	Incoming accumulation vector (2 x cint80 lanes)
xbuff	v16int32	Input buffer of 16 elements of type int32
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-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lmac2_antisym_ct_c	(	v2cacc80	acc,
		v16int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		v16int32	ybuff,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-accumulate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x and y input buffers using small X input buffer.

acc0 += cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 += cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
acc	v2cacc80	Incoming accumulation vector (2 x cint80 lanes)
xbuff	v16int32	Input buffer of 16 elements of type int32
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	v16int32	Right input buffer of 16 elements of type int32
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lmsc2_antisym_ct_c	(	v2cacc80	acc,
		v32int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-subtract intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer .

acc0 -= cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 -= cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
acc	v2cacc80	Incoming accumulation vector (2 x cint80 lanes)
xbuff	v32int32	Input buffer of 32 elements of type int32
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-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lmsc2_antisym_ct_c	(	v2cacc80	acc,
		v16int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-subtract intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer using small X input buffer.

acc0 -= cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 -= cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
acc	v2cacc80	Incoming accumulation vector (2 x cint80 lanes)
xbuff	v16int32	Input buffer of 16 elements of type int32
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-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lmsc2_antisym_ct_c	(	v2cacc80	acc,
		v16int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		v16int32	ybuff,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-subtract intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x and y input buffers using small X input buffer.

acc0 -= cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 -= cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
acc	v2cacc80	Incoming accumulation vector (2 x cint80 lanes)
xbuff	v16int32	Input buffer of 16 elements of type int32
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	v16int32	Right input buffer of 16 elements of type int32
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lmul2_antisym_ct_c	(	v32int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer .

acc0 = cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 = cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
xbuff	v32int32	Input buffer of 32 elements of type int32
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-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lmul2_antisym_ct_c	(	v16int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer using small X input buffer.

acc0 = cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 = cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
xbuff	v16int32	Input buffer of 16 elements of type int32
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-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lmul2_antisym_ct_c	(	v16int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		v16int32	ybuff,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x and y input buffers using small X input buffer.

acc0 = cnj(z00)*(x00 - y00) + cnj(z01)*x01
acc1 = cnj(z10)*(x10 - y10) + cnj(z11)*x11

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
xbuff	v16int32	Input buffer of 16 elements of type int32
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	v16int32	Right input buffer of 16 elements of type int32
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lnegmul2_antisym_ct_c	(	v32int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-negate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer .

acc0 = -( cnj(z00)*(x00 - y00) + cnj(z01)*x01 )
acc1 = -( cnj(z10)*(x10 - y10) + cnj(z11)*x11 )

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
xbuff	v32int32	Input buffer of 32 elements of type int32
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-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lnegmul2_antisym_ct_c	(	v16int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-negate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x input buffer using small X input buffer.

acc0 = -( cnj(z00)*(x00 - y00) + cnj(z01)*x01 )
acc1 = -( cnj(z10)*(x10 - y10) + cnj(z11)*x11 )

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
xbuff	v16int32	Input buffer of 16 elements of type int32
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-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.

v2cacc80 lnegmul2_antisym_ct_c	(	v16int32	xbuff,
		int	xstart,
		unsigned int	xoffsets,
		v16int32	ybuff,
		int	ystart,
		unsigned int	mtap,
		v4cint32	zbuff,
		int	zstart,
		unsigned int	zoffsets,
		int	zstep
	)

Complex anti-symmetric multiply-negate intrinsic function with center-tap optimization with z buffer conjugation with pre-sub from x and y input buffers using small X input buffer.

acc0 = -( cnj(z00)*(x00 - y00) + cnj(z01)*x01 )
acc1 = -( cnj(z10)*(x10 - y10) + cnj(z11)*x11 )

Parameters

Input/Output	Type	Comments
return	v2cacc80	Returned accumulation vector (2 x cint80 lanes)
xbuff	v16int32	Input buffer of 16 elements of type int32
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	v16int32	Right input buffer of 16 elements of type int32
ystart	int	Starting position offset applied to all lanes for input from Y buffer.
mtap	int	Selector for partial pre-subtraction relative to xstart
zbuff	v4cint32	Input buffer of 4 elements of type cint32
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.