feat: More setting up, got a janky decode stage that prints out the instruction it receives, added dump options to fusesoc, changed instr width back th 32 from 64

1 files changed, 34 insertions, 0 deletions

diff --git a/core/rtl/decode.sv b/core/rtl/decode.sv
new file mode 100644
index 0000000..e337e11
--- /dev/null
+++ b/core/rtl/decode.sv
@@ -0,0 +1,34 @@
+module decode
+import riscv_types::*;
+#(
+  )
+  (
+    input  logic        clk,
+    input  logic        rst_l,
+
+    // I-MEM Interface
+    input  logic [31:0] imem_id_instr_ID
+  );
+
+opcode_t instrOpCode_ID;
+
+assign instrOpCode_ID = opcode_t'(imem_id_instr_ID[6:0]);
+
+always_ff @(posedge clk) begin
+  $display("Instruction: %x", imem_id_instr_ID);
+  case (instrOpCode_ID)
+    INSTR_TYPE_LUI:    begin $display("Instr type: LUI"); end
+    INSTR_TYPE_AUIPC:  begin $display("Instr type: AUIPC"); end
+    INSTR_TYPE_JAL:    begin $display("Instr type: JAL"); end
+    INSTR_TYPE_JALR:   begin $display("Instr type: JALR"); end
+    INSTR_TYPE_BR:     begin $display("Instr type: BR"); end
+    INSTR_TYPE_LD:     begin $display("Instr type: LD"); end
+    INSTR_TYPE_ST:     begin $display("Instr type: ST"); end
+    INSTR_TYPE_IMM:    begin $display("Instr type: IMM"); end
+    INSTR_TYPE_REG:    begin $display("Instr type: REG"); end
+    INSTR_TYPE_CSR:    begin $display("Instr type: CSR"); end
+    default:           begin $display("Instr type: Unknown"); end
+  endcase
+end
+
+endmodule