github.com/olofk.serv
1
0
Fork 0
mirror of https://github.com/olofk/serv.git synced 2026-04-30 21:58:27 +00:00
Code Issues Releases Wiki Activity

remove redundant ALU control signal

Browse Source
This commit is contained in:
Olof Kindgren
2021-03-14 23:22:50 +01:00
parent 727bb40a87
commit 548b7fbb41
3 changed files with 9 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
rtl/serv_decode.v
View File

@@ -31,7 +31,7 @@ module serv_decode
output wire [1:0] o_alu_bool_op,
output wire o_alu_cmp_eq,
output wire o_alu_cmp_sig,
output wire [3:0] o_alu_rd_sel,
output wire [2:0] o_alu_rd_sel,
//To mem IF
output wire o_mem_signed,
output wire o_mem_word,
@@ -205,9 +205,8 @@ module serv_decode
assign o_immdec_ctrl[3] = opcode[4];
assign o_alu_rd_sel[0] = (funct3 == 3'b000); // Add/sub
assign o_alu_rd_sel[1] = (funct3[1:0] == 2'b01); //Shift
assign o_alu_rd_sel[2] = (funct3[2:1] == 2'b01); //SLT*
assign o_alu_rd_sel[3] = funct3[2]; //Bool
assign o_alu_rd_sel[1] = (funct3[2:1] == 2'b01); //SLT*
assign o_alu_rd_sel[2] = funct3[2]; //Bool
always @(posedge clk) begin
if (i_wb_en) begin
funct3 <= i_wb_rdt[14:12];