| localparam [0:0] | |
| OP_B_SOURCE_IMM = 1'd0, | |
| OP_B_SOURCE_RS2 = 1'd1; | |
| localparam[1:0] | |
| ALU_RESULT_ADD = 2'd0, | |
| ALU_RESULT_SR = 2'd1, | |
| ALU_RESULT_LT = 2'd2, | |
| ALU_RESULT_BOOL = 2'd3; | |
| localparam [1:0] | |
| CSR_SOURCE_CSR = 2'b00, | |
| CSR_SOURCE_EXT = 2'b01, | |
| CSR_SOURCE_SET = 2'b10, | |
| CSR_SOURCE_CLR = 2'b11; | |
| localparam [1:0] | |
| CSR_MSCRATCH = 2'b00, | |
| CSR_MTVEC = 2'b01, | |
| CSR_MEPC = 2'b10, | |
| CSR_MTVAL = 2'b11; |