xs3_split_acc_s32_t Struct Reference

Holds a set of sixteen 32-bit accumulators in the XS3 VPU's internal format. More...

#include <xs3_math_types.h>

Public Attributes
int16_t	vD [16]
	Most significant 16 bits of accumulators.
uint16_t	vR [16]
	Least significant 16 bits of accumulators.

Detailed Description

Holds a set of sixteen 32-bit accumulators in the XS3 VPU's internal format.

The XS3 VPU stores 32-bit accumulators with the most significant 16-bits stored in one 256-bit vector register (called vD), and the least significant 16-bit stored in another 256-bit register (called vR). This struct reflects that internal format, and is occasionally used to store intermediate results.

Note

vR is unsigned. This reflects the fact that a signed 16-bit integer 0xSTUVWXYZ is always exactly 0x0000WXYZ larger than 0xSTUV0000. To combine the upper and lower 16-bits of an accumulator, use (((int32_t)vD[k]) << 16) + vR[k].

---

The documentation for this struct was generated from the following file:

• /build/modules/core/modules/xs3_math/lib_xs3_math/lib_xs3_math/api/xs3_math_types.h