rtl: refactor filenames and directory hierarchy

1 files changed, 0 insertions, 75 deletions

diff --git a/rtl/core/decode/snd.sv b/rtl/core/decode/snd.sv
deleted file mode 100644
index 264982e..0000000
--- a/rtl/core/decode/snd.sv
+++ /dev/null
@@ -1,75 +0,0 @@
-`include "core/decode/isa.sv"
-`include "core/uarch.sv"
-
-module core_decode_snd
-(
-	input  word       insn,
-	input  logic      is_imm,
-	                  ror_if_imm,
-	                  shift_by_reg_if_reg,
-
-	output snd_decode decode,
-	output logic      undefined
-);
-
-	reg_num r, r_shift;
-	logic shift_by_reg, shr, ror, put_carry, sign_extend;
-	logic[11:0] imm;
-	logic[5:0] shift_imm;
-
-	assign decode.r = r;
-	assign decode.r_shift = r_shift;
-	assign decode.shift_by_reg = shift_by_reg;
-	assign decode.is_imm = is_imm;
-	assign decode.shr = shr;
-	assign decode.ror = ror;
-	assign decode.put_carry = put_carry;
-	assign decode.sign_extend = sign_extend;
-	assign decode.imm = imm;
-	assign decode.shift_imm = shift_imm;
-
-	assign r = insn `FIELD_SND_RM;
-	assign r_shift = insn `FIELD_SND_RS;
-	assign imm = ror_if_imm ? {4'b0, insn `FIELD_SND_IMM8} : insn `FIELD_SND_IMM12;
-	assign shift_by_reg = ~is_imm & shift_by_reg_if_reg;
-	assign undefined = shift_by_reg & insn `FIELD_SND_ZEROIFREG;
-
-	logic[1:0] shift_op;
-	assign shift_op = insn `FIELD_SND_SHIFT;
-
-	always_comb begin
-		ror = is_imm;
-		shr = ~is_imm;
-		put_carry = 0;
-		sign_extend = 0;
-
-		if(is_imm)
-			shift_imm = ror_if_imm ? {1'b0, insn `FIELD_SND_ROR8, 1'b0} : 6'b0;
-		else begin
-			shift_imm = {1'b0, insn `FIELD_SND_SHIFTIMM};
-
-			case(shift_op)
-				`SHIFT_LSL: shr = 0;
-				`SHIFT_LSR: ;
-				`SHIFT_ASR: sign_extend = 1;
-				`SHIFT_ROR: ror = 1;
-			endcase
-
-			if(!shift_by_reg && shift_imm == 0)
-				case(shift_op)
-					`SHIFT_LSL: ;
-
-					`SHIFT_LSR, `SHIFT_ASR:
-						shift_imm = 6'd32;
-
-					`SHIFT_ROR: begin
-						// RRX
-						ror = 0;
-						shift_imm = 6'd1;
-						put_carry = 1;
-					end
-				endcase
-		end
-	end
-
-endmodule