Alibaba Group Holding Limited

C-sky Microsystems Co., Ltd.

Wenmeng Zhang

Yubo Guo

Zhijian Chen

Jiahui Luo

Zhesheng Luo

The present invention discloses an instruction processing apparatus, comprising a first register adapted to store first source data, a second register adapted to store second source data, a third register adapted to store accumulated data, a decoder adapted to receive and decode a multiply-accumulate instruction, and an execution unit. The multiply-accumulate instruction indicates that the first register serves as a first operand, the second register serves as a second operand, the third register serves as a third operand, and a shift flag. The execution unit is coupled to the first register, the second register, the third register, and the decoder, and configured to execute the decoded multiply-accumulate instruction so as to acquire the first source data from the first register and acquire the second source data from the second register, perform a multiplication operation on the first source data and the second source data so as to obtain a multiplication result, shift the multiplication result according to the shift flag, and add the shifted multiplication result and the accumulated data in the third register so as to obtain a multiply-accumulate result. The present invention further discloses a corresponding instruction processing method, a computing system, and a system on chip.

Multiply-accumulate instruction processing method and apparatus

The present disclosure discloses an instruction processing apparatus, comprising a first vector register adapted to store a first vector to be operated on, a second vector register adapted to store a second vector to be operated on, a decoder adapted to receive and decode a data splicing instruction, and an execution unit. The data splicing instruction indicates the first vector register as a first operand, the second vector register as a second operand, a splicing indicator, and a destination. The execution unit is coupled to the first vector register, the second vector register, and the decoder, and is adapted to execute the decoded data splicing instruction, so as to acquire a first part of the first vector from the first vector register and acquire a second part of the second vector from the second vector register according to the splicing indicator, splice the acquired first part of the first vector and the acquired second part of the second vector to form a third vector, and store the third vector into the destination.

Growing community of inventors

Hangzhou, China

Wenmeng Zhang