From ed0bd705f94f6aea568ec8405534984a37770f21 Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Mon, 25 Sep 2023 19:12:49 -0600
Subject: rtl/core, tb: replace bus_master with a new top-level module

---
 rtl/core/decode/data.sv | 65 -------------------------------------------------
 1 file changed, 65 deletions(-)
 delete mode 100644 rtl/core/decode/data.sv

(limited to 'rtl/core/decode/data.sv')

diff --git a/rtl/core/decode/data.sv b/rtl/core/decode/data.sv
deleted file mode 100644
index f744972..0000000
--- a/rtl/core/decode/data.sv
+++ /dev/null
@@ -1,65 +0,0 @@
-`include "core/decode/isa.sv"
-`include "core/uarch.sv"
-
-module core_decode_data
-(
-	input  word        insn,
-
-	output data_decode decode,
-	output logic       snd_is_imm,
-	                   snd_shift_by_reg_if_reg,
-	                   writeback,
-	                   conditional,
-	                   update_flags,
-	                   restore_spsr
-);
-
-	alu_op op;
-	reg_num rn, rd;
-	logic uses_rn;
-
-	assign decode.op = op;
-	assign decode.rn = rn;
-	assign decode.rd = rd;
-	assign decode.uses_rn = uses_rn;
-
-	assign rn = insn `FIELD_DATA_RN;
-	assign rd = insn `FIELD_DATA_RD;
-	assign op = insn `FIELD_DATA_OPCODE;
-
-	assign snd_is_imm = insn `FIELD_DATA_IMM;
-	assign snd_shift_by_reg_if_reg = insn `FIELD_DATA_REGSHIFT;
-
-	always_comb begin
-		unique case(op)
-			`ALU_ADC, `ALU_SBC, `ALU_RSC:
-				conditional = 1;
-
-			default:
-				conditional = 0;
-		endcase
-
-		unique case(op)
-			`ALU_CMP, `ALU_CMN, `ALU_TST, `ALU_TEQ:
-				writeback = 0;
-
-			default:
-				writeback = 1;
-		endcase
-
-		unique case(op)
-			`ALU_MOV, `ALU_MVN:
-				uses_rn = 0;
-
-			default:
-				uses_rn = 1;
-		endcase
-
-		update_flags = insn `FIELD_DATA_S;
-		restore_spsr = (rd == `R15) & update_flags;
-
-		if(restore_spsr)
-			update_flags = 0;
-	end
-
-endmodule
-- 
cgit v1.2.3