neorv32_cpu_cfu.h File Reference

CPU Core custom functions unit HW driver header file. More...

Go to the source code of this file.

Macros
Low-level CFU custom instructions ("intrinsics")
#define	neorv32_cfu_r3_instr(funct7, funct3, rs1, rs2)   CUSTOM_INSTR_R3_TYPE(funct7, rs2, rs1, funct3, RISCV_OPCODE_CUSTOM0)
#define	neorv32_cfu_r4_instr(funct3, rs1, rs2, rs3)   CUSTOM_INSTR_R4_TYPE(rs3, rs2, rs1, funct3, RISCV_OPCODE_CUSTOM1)
#define	neorv32_cfu_r5_instr_a(rs1, rs2, rs3, rs4)   CUSTOM_INSTR_R5_TYPE(rs4, rs3, rs2, rs1, RISCV_OPCODE_CUSTOM2)
#define	neorv32_cfu_r5_instr_b(rs1, rs2, rs3, rs4)   CUSTOM_INSTR_R5_TYPE(rs4, rs3, rs2, rs1, RISCV_OPCODE_CUSTOM3)

Functions
int	neorv32_cpu_cfu_available (void)

Detailed Description

CPU Core custom functions unit HW driver header file.

Macro Definition Documentation

neorv32_cfu_r3_instr

#define neorv32_cfu_r3_instr	(		funct7,
			funct3,
			rs1,
			rs2
	)		CUSTOM_INSTR_R3_TYPE(funct7, rs2, rs1, funct3, RISCV_OPCODE_CUSTOM0)

R3-type CFU custom instruction prototype

neorv32_cfu_r4_instr

#define neorv32_cfu_r4_instr	(		funct3,
			rs1,
			rs2,
			rs3
	)		CUSTOM_INSTR_R4_TYPE(rs3, rs2, rs1, funct3, RISCV_OPCODE_CUSTOM1)

R4-type CFU custom instruction prototype

neorv32_cfu_r5_instr_a

#define neorv32_cfu_r5_instr_a	(		rs1,
			rs2,
			rs3,
			rs4
	)		CUSTOM_INSTR_R5_TYPE(rs4, rs3, rs2, rs1, RISCV_OPCODE_CUSTOM2)

R5-type CFU custom instruction A prototype

neorv32_cfu_r5_instr_b

#define neorv32_cfu_r5_instr_b	(		rs1,
			rs2,
			rs3,
			rs4
	)		CUSTOM_INSTR_R5_TYPE(rs4, rs3, rs2, rs1, RISCV_OPCODE_CUSTOM3)

R5-type CFU custom instruction B prototype

Function Documentation

neorv32_cpu_cfu_available()

int neorv32_cpu_cfu_available

(

void

)

Check if custom functions unit was synthesized.

Returns

0 if CFU was not synthesized, 1 if CFU is available.