rebase master update

2021-07-30 21:03:14 -07:00
parent 79fd92a1b4
commit bb1ceffadd
86 changed files with 6111 additions and 132 deletions
--- a/hw/rtl/VX_decode.v
+++ b/hw/rtl/VX_decode.v
@@ -42,6 +42,7 @@ module VX_decode  #(

    wire [31:0] instr = ifetch_rsp_if.data;
    wire [6:0] opcode = instr[6:0];  
+    wire [1:0] func2  = instr[26:25];
    wire [2:0] func3  = instr[14:12];
    wire [6:0] func7  = instr[31:25];
    wire [11:0] u_12  = instr[31:20]; 
@@ -372,6 +373,16 @@ module VX_decode  #(
                        `USED_IREG (rs1);
                        `USED_IREG (rs2);
                    end
+                `ifdef EXT_TEX_ENABLE
+                    3'h5: begin
+                        op_type = `OP_BITS'(`GPU_TEX);
+                        op_mod  = `MOD_BITS'(func2);
+                        use_rd  = 1;                     
+                        `USED_IREG (rs1);
+                        `USED_IREG (rs2);
+                        `USED_IREG (rs3);
+                    end
+                `endif
                    default:;
                endcase
            end
@@ -379,6 +390,8 @@ module VX_decode  #(
        endcase
    end

+    `UNUSED_VAR (func2)
+
    // disable write to integer register r0
    wire wb = use_rd && (| rd_r);