c.andi And immediate This instruction is defined by: Encoding Synopsis And an immediate to the value in rd, and store the result in rd. The rd register index should be used as rd+8 (registers x8-x15). C.ANDI expands into andi rd, rd, imm. Access M HS U VS VU Always Always Always Always Always Decode Variables Bits<6> imm = {$encoding[12], $encoding[6:2]}; Bits<3> rd = $encoding[9:7]; Execution Pruned, XLEN == 64 Original X[rd + 8] = X[rd + 8] & imm; X[rd + 8] = X[rd + 8] & imm;