X-Git-Url: http://git.joshuawise.com/firearm.git/blobdiff_plain/90bdd4a8174c0c08e132836696b5961c921b3206..ae457ae989e4c46a0ab28cfbe7059cb8ae609ca8:/system.v diff --git a/system.v b/system.v index 07adfd8..de3fd74 100644 --- a/system.v +++ b/system.v @@ -1,7 +1,15 @@ `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; @@ -102,21 +110,61 @@ module System(input clk); wire [31:0] pc_out_issue; wire [31:0] pc_out_execute; wire [31:0] pc_out_memory; + + wire Nrst = ~rst; + + /*AUTOWIRE*/ + // Beginning of automatic wires (for undeclared instantiated-module outputs) + wire bubble_1a; // From fetch of Fetch.v + wire [31:0] ic__rd_addr_0a; // From fetch of Fetch.v + wire [31:0] ic__rd_data_1a; // From icache of ICache.v + wire ic__rd_req_0a; // From fetch of Fetch.v + wire ic__rd_wait_0a; // From icache of ICache.v + wire [31:0] insn_1a; // From fetch of Fetch.v + wire [31:0] pc_1a; // From fetch of Fetch.v + wire [31:0] rf__rdata_0_1a; // From regfile of RegFile.v + wire [31:0] rf__rdata_1_1a; // From regfile of RegFile.v + wire [31:0] rf__rdata_2_1a; // From regfile of RegFile.v + wire [31:0] rf__rdata_3_4a; // From regfile of RegFile.v + wire [3:0] rf__read_0_1a; // From decode of Decode.v + wire [3:0] rf__read_1_1a; // From decode of Decode.v + wire [3:0] rf__read_2_1a; // From decode of Decode.v + wire stall_0a; // From issue of Issue.v + // End of automatics wire execute_out_backflush; wire writeback_out_backflush; BusArbiter busarbiter(.bus_req(bus_req), .bus_ack(bus_ack)); - ICache icache( + /* XXX reset? */ + /* ICache AUTO_TEMPLATE ( .clk(clk), - /* XXX reset? */ - .rd_addr(icache_rd_addr), .rd_req(icache_rd_req), - .rd_wait(icache_rd_wait), .rd_data(icache_rd_data), - .bus_req(bus_req_icache), .bus_ack(bus_ack_icache), - .bus_addr(bus_addr_icache), .bus_rdata(bus_rdata), - .bus_wdata(bus_wdata_icache), .bus_rd(bus_rd_icache), - .bus_wr(bus_wr_icache), .bus_ready(bus_ready)); + .bus_req(bus_req_icache), + .bus_ack(bus_ack_icache), + .bus_addr(bus_addr_icache), + .bus_rdata(bus_rdata), + .bus_wdata(bus_wdata_icache), + .bus_rd(bus_rd_icache), + .bus_wr(bus_wr_icache), + .bus_ready(bus_ready), + ); */ + ICache icache(/*AUTOINST*/ + // Outputs + .ic__rd_wait_0a (ic__rd_wait_0a), + .ic__rd_data_1a (ic__rd_data_1a[31:0]), + .bus_req (bus_req_icache), // Templated + .bus_addr (bus_addr_icache), // Templated + .bus_wdata (bus_wdata_icache), // Templated + .bus_rd (bus_rd_icache), // Templated + .bus_wr (bus_wr_icache), // Templated + // Inputs + .clk (clk), // Templated + .ic__rd_addr_0a (ic__rd_addr_0a[31:0]), + .ic__rd_req_0a (ic__rd_req_0a), + .bus_ack (bus_ack_icache), // Templated + .bus_rdata (bus_rdata), // Templated + .bus_ready (bus_ready)); // Templated DCache dcache( .clk(clk), @@ -138,42 +186,119 @@ module System(input clk); .bus_wdata(bus_wdata), .bus_rd(bus_rd), .bus_wr(bus_wr), .bus_ready(bus_ready_blockram)); + /* Fetch AUTO_TEMPLATE ( + .stall_0a(stall_cause_issue), + .jmp_0a(jmp), + .jmppc_0a(jmppc), + ); + */ Fetch fetch( - .clk(clk), - .Nrst(1'b1 /* XXX */), - .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), - .bubble(bubble_out_fetch), .insn(insn_out_fetch), - .pc(pc_out_fetch)); + /*AUTOINST*/ + // Outputs + .ic__rd_addr_0a (ic__rd_addr_0a[31:0]), + .ic__rd_req_0a (ic__rd_req_0a), + .bubble_1a (bubble_1a), + .insn_1a (insn_1a[31:0]), + .pc_1a (pc_1a[31:0]), + // Inputs + .clk (clk), + .Nrst (Nrst), + .ic__rd_wait_0a (ic__rd_wait_0a), + .ic__rd_data_1a (ic__rd_data_1a[31:0]), + .stall_0a (stall_cause_issue), // Templated + .jmp_0a (jmp), // Templated + .jmppc_0a (jmppc)); // Templated + /* Issue AUTO_TEMPLATE ( + .stall_1a(stall_cause_execute), + .flush(execute_out_backflush | writeback_out_backflush), + .cpsr_1a(writeback_out_cpsr), + .bubble_2a(bubble_out_issue), + .pc_2a(pc_out_issue), + .insn_2a(insn_out_issue), + ); + */ Issue issue( - .clk(clk), - .Nrst(1'b1 /* XXX */), - .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), - .outstall(stall_cause_issue), .outbubble(bubble_out_issue), - .outpc(pc_out_issue), .outinsn(insn_out_issue)); + /*AUTOINST*/ + // Outputs + .stall_0a (stall_0a), + .bubble_2a (bubble_out_issue), // Templated + .pc_2a (pc_out_issue), // Templated + .insn_2a (insn_out_issue), // Templated + // Inputs + .clk (clk), + .Nrst (Nrst), + .stall_1a (stall_cause_execute), // Templated + .flush (execute_out_backflush | writeback_out_backflush), // Templated + .bubble_1a (bubble_1a), + .insn_1a (insn_1a[31:0]), + .pc_1a (pc_1a[31:0]), + .cpsr_1a (writeback_out_cpsr)); // Templated - RegFile regfile( - .clk(clk), - .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), + /* RegFile AUTO_TEMPLATE ( .spsr(regfile_spsr), - .write(regfile_write), .write_reg(regfile_write_reg), .write_data(regfile_write_data)); + .write(regfile_write), + .write_reg(regfile_write_reg), + .write_data(regfile_write_data), + ); + */ + wire [3:0] rf__read_3_4a; + RegFile regfile( + /*AUTOINST*/ + // Outputs + .rf__rdata_0_1a (rf__rdata_0_1a[31:0]), + .rf__rdata_1_1a (rf__rdata_1_1a[31:0]), + .rf__rdata_2_1a (rf__rdata_2_1a[31:0]), + .rf__rdata_3_4a (rf__rdata_3_4a[31:0]), + .spsr (regfile_spsr), // Templated + // Inputs + .clk (clk), + .Nrst (Nrst), + .rf__read_0_1a (rf__read_0_1a[3:0]), + .rf__read_1_1a (rf__read_1_1a[3:0]), + .rf__read_2_1a (rf__read_2_1a[3:0]), + .rf__read_3_4a (rf__read_3_4a[3:0]), + .write (regfile_write), // Templated + .write_reg (regfile_write_reg), // Templated + .write_data (regfile_write_data)); // Templated - Decode decode( - .clk(clk), + /* Decode AUTO_TEMPLATE ( .stall(stall_cause_execute), - .insn(insn_out_fetch), .inpc(pc_out_fetch), .incpsr(writeback_out_cpsr), .inspsr(writeback_out_spsr), - .op0(decode_out_op0), .op1(decode_out_op1), .op2(decode_out_op2), - .carry(decode_out_carry), .outcpsr(decode_out_cpsr), .outspsr(decode_out_spsr), - .read_0(regfile_read_0), .read_1(regfile_read_1), .read_2(regfile_read_2), - .rdata_0(regfile_rdata_0), .rdata_1(regfile_rdata_1), .rdata_2(regfile_rdata_2)); + .incpsr(writeback_out_cpsr), + .inspsr(writeback_out_spsr), + .op0(decode_out_op0), + .op1(decode_out_op1), + .op2(decode_out_op2), + .carry(decode_out_carry), + .outcpsr(decode_out_cpsr), + .outspsr(decode_out_spsr), + ); + */ + Decode decode( + /*AUTOINST*/ + // Outputs + .op0 (decode_out_op0), // Templated + .op1 (decode_out_op1), // Templated + .op2 (decode_out_op2), // Templated + .carry (decode_out_carry), // Templated + .outcpsr (decode_out_cpsr), // Templated + .outspsr (decode_out_spsr), // Templated + .rf__read_0_1a (rf__read_0_1a[3:0]), + .rf__read_1_1a (rf__read_1_1a[3:0]), + .rf__read_2_1a (rf__read_2_1a[3:0]), + // Inputs + .clk (clk), + .stall (stall_cause_execute), // Templated + .insn_1a (insn_1a[31:0]), + .pc_1a (pc_1a[31:0]), + .incpsr (writeback_out_cpsr), // Templated + .inspsr (writeback_out_spsr), // Templated + .rf__rdata_0_1a (rf__rdata_0_1a[31:0]), + .rf__rdata_1_1a (rf__rdata_1_1a[31:0]), + .rf__rdata_2_1a (rf__rdata_2_1a[31:0])); 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), @@ -189,11 +314,11 @@ module System(input clk); 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), + .st_read(rf__read_3_4a), .st_data(rf__rdata_3_4a), .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), .cpsrup(execute_out_cpsrup), @@ -208,7 +333,12 @@ module System(input clk); 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), @@ -225,7 +355,7 @@ module System(input clk); begin clockno <= clockno + 1; $display("------------------------------------------------------------------------------"); - $display("%3d: FETCH: Bubble: %d, Instruction: %08x, PC: %08x", clockno, bubble_out_fetch, insn_out_fetch, pc_out_fetch); + $display("%3d: FETCH: Bubble: %d, Instruction: %08x, PC: %08x", clockno, bubble_1a, insn_1a, pc_1a); $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: 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);