Question

5 – What is the binary encoding of the following RISC-V assembly instruction? Please write your answer as an 8-digit hexadecimal number.

and x8, x6, x7

Answer 1

5). ANSWER :

GIVENTHAT :

• Get the instruction format from the manual.

• Get the opcode, funct7,funct3, and register numbers from the manual(funct7=0000000,rs2=x7=00111,rs1=x6=00110,funct3=111,rd=x8=01000,opcode=0110011)
• Understand the syntax of the AND instruction. ie AND rd,rs1,rs2(AND x8,x6,x7)
• Encode the above binaries into the format as follows:

• Group 4 bits each and get the hexadecimal equivalent as:0x00737433