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rtl refactoring

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This commit is contained in:
Blaise Tine
2020-05-05 10:46:48 -04:00
parent f142afac80
commit b7e892ee16
39 changed files with 393 additions and 425 deletions
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24
hw/rtl/VX_exec_unit.v
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@@ -44,27 +44,28 @@ module VX_exec_unit (
wire[`NUM_THREADS-1:0][31:0] alu_result;
wire[`NUM_THREADS-1:0] alu_stall;
genvar index_out_reg;
genvar i;
generate
for (index_out_reg = 0; index_out_reg < `NUM_THREADS; index_out_reg = index_out_reg + 1) begin : alu_defs
for (i = 0; i < `NUM_THREADS; i = i + 1) begin : alu_defs
VX_alu_unit alu_unit (
.clk (clk),
.reset (reset),
.src_a (in_a_reg_data[index_out_reg]),
.src_b (in_b_reg_data[index_out_reg]),
.src_a (in_a_reg_data[i]),
.src_b (in_b_reg_data[i]),
.src_rs2 (in_rs2_src),
.itype_immed (in_itype_immed),
.upper_immed (in_upper_immed),
.alu_op (in_alu_op),
.curr_PC (in_curr_PC),
.alu_result (alu_result[index_out_reg]),
.alu_stall (alu_stall[index_out_reg])
.alu_result (alu_result[i]),
.alu_stall (alu_stall[i])
);
end
endgenerate
wire internal_stall;
assign internal_stall = |alu_stall;
assign internal_stall = (| alu_stall);
assign delay = no_slot_exec || internal_stall;
@@ -98,11 +99,10 @@ module VX_exec_unit (
endcase // in_branch_type
end
wire[`NUM_THREADS-1:0][31:0] duplicate_PC_data;
genvar i;
generate
for (i = 0; i < `NUM_THREADS; i=i+1) begin : pc_data_setup
for (i = 0; i < `NUM_THREADS; i=i+1) begin
assign duplicate_PC_data[i] = exec_unit_req_if.PC_next;
end
endgenerate
@@ -128,7 +128,7 @@ module VX_exec_unit (
assign jal_rsp_temp_if.jal_warp_num = exec_unit_req_if.warp_num;
// Branch rsp
assign branch_rsp_temp_if.valid_branch = (exec_unit_req_if.branch_type != `NO_BRANCH) && (|exec_unit_req_if.valid);
assign branch_rsp_temp_if.valid_branch = (exec_unit_req_if.branch_type != `NO_BRANCH) && (| exec_unit_req_if.valid);
assign branch_rsp_temp_if.branch_dir = temp_branch_dir;
assign branch_rsp_temp_if.branch_warp_num = exec_unit_req_if.warp_num;
assign branch_rsp_temp_if.branch_dest = $signed(exec_unit_req_if.curr_PC) + ($signed(exec_unit_req_if.itype_immed) << 1); // itype_immed = branch_offset
@@ -167,7 +167,7 @@ module VX_exec_unit (
);
// always @(*) begin
// case(in_alu_op)
// case (in_alu_op)
// `CSR_ALU_RW: out_csr_result = in_csr_mask;
// `CSR_ALU_RS: out_csr_result = in_csr_data | in_csr_mask;
// `CSR_ALU_RC: out_csr_result = in_csr_data & (32'hFFFFFFFF - in_csr_mask);