-`define BUS_ICACHE 0
-`define BUS_DCACHE 1
+`define BUS_ICACHE 1
+`define BUS_DCACHE 0
-module System(input clk);
+module System(input clk, input rst
+`ifdef verilator
+`else
+ , output wire [8:0] sys_odata,
+ input [8:0] sys_idata,
+ output wire sys_tookdata
+`endif
+ );
+
wire [7:0] bus_req;
wire [7:0] bus_ack;
wire [31:0] bus_addr;
wire bus_req_icache;
wire bus_req_dcache;
- assign bus_req = {6'b0, bus_req_dcache, bus_req_icache};
+ assign bus_req = {6'b0, bus_req_icache, bus_req_dcache};
wire bus_ack_icache = bus_ack[`BUS_ICACHE];
wire bus_ack_dcache = bus_ack[`BUS_DCACHE];
wire [31:0] execute_out_write_data;
wire [31:0] execute_out_op0, execute_out_op1, execute_out_op2;
wire [31:0] execute_out_cpsr, execute_out_spsr;
+ wire execute_out_cpsrup;
wire jmp_out_execute, jmp_out_writeback;
wire [31:0] jmppc_out_execute, jmppc_out_writeback;
wire [3:0] memory_out_write_num;
wire [31:0] memory_out_write_data;
wire [31:0] memory_out_cpsr, memory_out_spsr;
+ wire memory_out_cpsrup;
wire [31:0] writeback_out_cpsr, writeback_out_spsr;
.bus_wdata(bus_wdata_dcache), .bus_rd(bus_rd_dcache),
.bus_wr(bus_wr_dcache), .bus_ready(bus_ready));
- BlockRAM blockram(
+`ifdef verilator
+ BigBlockRAM
+`else
+ BlockRAM
+`endif
+ blockram(
.clk(clk),
.bus_addr(bus_addr), .bus_rdata(bus_rdata_blockram),
.bus_wdata(bus_wdata), .bus_rd(bus_rd), .bus_wr(bus_wr),
Fetch fetch(
.clk(clk),
- .Nrst(1'b1 /* XXX */),
+ .Nrst(~rst),
.rd_addr(icache_rd_addr), .rd_req(icache_rd_req),
.rd_wait(icache_rd_wait), .rd_data(icache_rd_data),
.stall(stall_cause_issue), .jmp(jmp), .jmppc(jmppc),
Issue issue(
.clk(clk),
- .Nrst(1'b1 /* XXX */),
+ .Nrst(~rst),
.stall(stall_cause_execute), .flush(execute_out_backflush | writeback_out_backflush),
.inbubble(bubble_out_fetch), .insn(insn_out_fetch),
.inpc(pc_out_fetch), .cpsr(writeback_out_cpsr),
.outpc(pc_out_issue), .outinsn(insn_out_issue));
RegFile regfile(
- .clk(clk),
+ .clk(clk), .Nrst(~rst),
.read_0(regfile_read_0), .read_1(regfile_read_1), .read_2(regfile_read_2), .read_3(regfile_read_3),
.rdata_0(regfile_rdata_0), .rdata_1(regfile_rdata_1), .rdata_2(regfile_rdata_2), .rdata_3(regfile_rdata_3),
.spsr(regfile_spsr),
.rdata_0(regfile_rdata_0), .rdata_1(regfile_rdata_1), .rdata_2(regfile_rdata_2));
Execute execute(
- .clk(clk), .Nrst(1'b0),
+ .clk(clk), .Nrst(~rst),
.stall(stall_cause_memory), .flush(writeback_out_backflush),
.inbubble(bubble_out_issue), .pc(pc_out_issue), .insn(insn_out_issue),
.cpsr(decode_out_cpsr), .spsr(decode_out_spsr), .op0(decode_out_op0), .op1(decode_out_op1),
.jmp(jmp_out_execute), .jmppc(jmppc_out_execute),
.outpc(pc_out_execute), .outinsn(insn_out_execute),
.outop0(execute_out_op0), .outop1(execute_out_op1), .outop2(execute_out_op2),
- .outcpsr(execute_out_cpsr), .outspsr(execute_out_spsr));
+ .outcpsr(execute_out_cpsr), .outspsr(execute_out_spsr), .outcpsrup(execute_out_cpsrup));
assign execute_out_backflush = jmp;
assign cp_insn = insn_out_execute;
Memory memory(
- .clk(clk), .Nrst(1'b0),
+ .clk(clk), .Nrst(~rst),
/* stall? */ .flush(writeback_out_backflush),
.busaddr(dcache_addr), .rd_req(dcache_rd_req), .wr_req(dcache_wr_req),
.rw_wait(dcache_rw_wait), .wr_data(dcache_wr_data), .rd_data(dcache_rd_data),
.st_read(regfile_read_3), .st_data(regfile_rdata_3),
.inbubble(bubble_out_execute), .pc(pc_out_execute), .insn(insn_out_execute),
.op0(execute_out_op0), .op1(execute_out_op1), .op2(execute_out_op2),
- .spsr(execute_out_spsr), .cpsr(execute_out_cpsr),
+ .spsr(execute_out_spsr), .cpsr(execute_out_cpsr), .cpsrup(execute_out_cpsrup),
.write_reg(execute_out_write_reg), .write_num(execute_out_write_num), .write_data(execute_out_write_data),
.outstall(stall_cause_memory), .outbubble(bubble_out_memory),
.outpc(pc_out_memory), .outinsn(insn_out_memory),
.out_write_reg(memory_out_write_reg), .out_write_num(memory_out_write_num),
.out_write_data(memory_out_write_data),
.cp_req(cp_req), .cp_ack(cp_ack), .cp_busy(cp_busy), .cp_rnw(cp_rnw), .cp_read(cp_read), .cp_write(cp_write),
- .outcpsr(memory_out_cpsr), .outspsr(memory_out_spsr) /* XXX data_size */);
+ .outcpsr(memory_out_cpsr), .outspsr(memory_out_spsr), .outcpsrup(memory_out_cpsrup) /* XXX data_size */);
Terminal terminal(
.clk(clk),
.cp_req(cp_req), .cp_insn(cp_insn), .cp_ack(cp_ack_terminal), .cp_busy(cp_busy_terminal), .cp_rnw(cp_rnw),
- .cp_read(cp_read_terminal), .cp_write(cp_write));
+ .cp_read(cp_read_terminal), .cp_write(cp_write)
+`ifdef verilator
+`else
+ , .sys_odata(sys_odata), .sys_tookdata(sys_tookdata), .sys_idata(sys_idata)
+`endif
+ );
Writeback writeback(
.clk(clk),
.inbubble(bubble_out_memory),
.write_reg(memory_out_write_reg), .write_num(memory_out_write_num), .write_data(memory_out_write_data),
- .cpsr(memory_out_cpsr), .spsr(memory_out_spsr),
+ .cpsr(memory_out_cpsr), .spsr(memory_out_spsr), .cpsrup(memory_out_cpsrup),
.regfile_write(regfile_write), .regfile_write_reg(regfile_write_reg), .regfile_write_data(regfile_write_data),
.outcpsr(writeback_out_cpsr), .outspsr(writeback_out_spsr),
.jmp(jmp_out_writeback), .jmppc(jmppc_out_writeback));
$display("------------------------------------------------------------------------------");
$display("%3d: FETCH: Bubble: %d, Instruction: %08x, PC: %08x", clockno, bubble_out_fetch, insn_out_fetch, pc_out_fetch);
$display("%3d: ISSUE: Stall: %d, Bubble: %d, Instruction: %08x, PC: %08x", clockno, stall_cause_issue, bubble_out_issue, insn_out_issue, pc_out_issue);
- $display("%3d: DECODE: op1 %08x, op2 %08x, op3 %08x, carry %d", clockno, decode_out_op0, decode_out_op1, decode_out_op2, decode_out_carry);
+ $display("%3d: DECODE: op0 %08x, op1 %08x, op2 %08x, carry %d", clockno, decode_out_op0, decode_out_op1, decode_out_op2, decode_out_carry);
$display("%3d: EXEC: Stall: %d, Bubble: %d, Instruction: %08x, PC: %08x, Reg: %d, [%08x -> %d], Jmp: %d [%08x]", clockno, stall_cause_execute, bubble_out_execute, insn_out_execute, pc_out_execute, execute_out_write_reg, execute_out_write_data, execute_out_write_num, jmp_out_execute, jmppc_out_execute);
$display("%3d: MEMORY: Stall: %d, Bubble: %d, Instruction: %08x, PC: %08x, Reg: %d, [%08x -> %d]", clockno, stall_cause_memory, bubble_out_memory, insn_out_memory, pc_out_memory, memory_out_write_reg, memory_out_write_data, memory_out_write_num);
$display("%3d: WRITEB: CPSR %08x, SPSR %08x, Reg: %d [%08x -> %d], Jmp: %d [%08x]", clockno, writeback_out_cpsr, writeback_out_spsr, regfile_write, regfile_write_data, regfile_write_reg, jmp_out_writeback, jmppc_out_writeback);
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