Abstract: The present disclosure provides a multifunctional pet scissor, including a pet scissor main body, wherein a dust collector connecting cylinder is installed at at bottom of the pet scissor main body, and the dust collector connecting cylinder may be connected to a dust collector; and an air duct communicating with the connecting cylinder is arranged inside the pet scissor main body, and when shaving the pet, the dust collector is connected so as to directly absorb the hair into the dust collector. The multifunctional pet scissor further includes a knife rest, a knife head is arranged on the knife rest; the knife rest may be detachably arranged at an outer side of the pet scissor main body, so that the knife rest may be taken down from the pet scissor main body, and then the knife head on the knife rest can be cleaned.

Abstract: An interrupt system for RISC-V architecture includes an original register in a CLIC, a pushmcause register, a pushmepc register, an interrupt response register, and an mtvt2 register; the pushmcause register is used to store a value in an mcause on a stack by means of an instruction; the pushmepc register is used to store a value in an mepc on a stack by means of an instruction; the interrupt response register is used to respond to a non-vectored interrupt request issued by a CLIC by means of an instruction, obtain an interrupt subroutine entry address, and modify a global interrupt enable; and the mtvt2 register is used to store a base address of an non-vectored interrupt in a CLIC mode.

Abstract: An interrupt system for RISC-V architecture includes an original register in a CLIC, a pushmcause register, a pushmepc register, an interrupt response register, and an mtvt2 register; the pushmcause register is used to store a value in an mcause on a stack by means of an instruction; the pushmepc register is used to store a value in an mepc on a stack by means of an instruction; the interrupt response register is used to respond to a non-vectored interrupt request issued by a CLIC by means of an instruction, obtain an interrupt subroutine entry address, and modify a global interrupt enable; and the mtvt2 register is used to store a base address of an non-vectored interrupt in a CLIC mode.