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Diffstat (limited to 'rv64cpu/rtl/core/branch_unit.sv')
| -rw-r--r-- | rv64cpu/rtl/core/branch_unit.sv | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/rv64cpu/rtl/core/branch_unit.sv b/rv64cpu/rtl/core/branch_unit.sv deleted file mode 100644 index c9662ce..0000000 --- a/rv64cpu/rtl/core/branch_unit.sv +++ /dev/null @@ -1,52 +0,0 @@ -// Richard CPU -// Copyright (C) 2026 Richard Qin - -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. - -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <https://www.gnu.org/licenses/>. - -// File path: rtl/core/branch_unit.sv -// Description: Branch Unit, responsible for determining whether conditional jump instructions are effective - -module branch_unit - import rv64_pkg::*; -( - input logic is_branch, // Indicates whether the current instruction is a branch instruction - input logic [2:0] branch_op, // Specific branch types func3 - input logic [XLEN-1:0] operand_a, // operand 1 - input logic [XLEN-1:0] operand_b, // operand 2 - output logic branch_taken // Branch taken signal -); - - always_comb begin - branch_taken = 1'b0; - - if (is_branch) begin - case (branch_op) - // 3'b000: BEQ (Branch if Equal) - BRANCH_EQ: branch_taken = (operand_a == operand_b); - // 3'b001: BNE (Branch if Not Equal) - BRANCH_NE: branch_taken = (operand_a != operand_b); - // 3'b100: BLT (Branch if Less Than, Signed) - BRANCH_LT: branch_taken = ($signed(operand_a) < $signed(operand_b)); - // 3'b101: BGE (Branch if Greater Than or Equal, Signed) - BRANCH_GE: branch_taken = ($signed(operand_a) >= $signed(operand_b)); - // 3'b110: BLTU (Branch if Less Than, Unsigned) - BRANCH_LTU: branch_taken = (operand_a < operand_b); - // 3'b111: BGEU (Branch if Greater Than or Equal, Unsigned) - BRANCH_GEU: branch_taken = (operand_a >= operand_b); - default: branch_taken = 1'b0; - endcase - end - end - -endmodule |