X-Git-Url: http://git.joshuawise.com/firearm.git/blobdiff_plain/90bdd4a8174c0c08e132836696b5961c921b3206..a9f76b88574c4e20ed91ab6704f3f74852584825:/system.v diff --git a/system.v b/system.v index 07adfd8..8205a15 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; @@ -102,30 +110,123 @@ 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 bubble_2a; // From issue of Issue.v + wire bubble_3a; // From execute of Execute.v + wire carry_2a; // From decode of Decode.v + wire [31:0] cpsr_2a; // From decode of Decode.v + wire [31:0] cpsr_3a; // From execute of Execute.v + wire cpsrup_3a; // From execute of Execute.v + wire [31:0] dc__addr_3a; // From memory of Memory.v + wire [2:0] dc__data_size_3a; // From memory of Memory.v + wire [31:0] dc__rd_data_3a; // From dcache of DCache.v + wire dc__rd_req_3a; // From memory of Memory.v + wire dc__rw_wait_3a; // From dcache of DCache.v + wire [31:0] dc__wr_data_3a; // From memory of Memory.v + wire dc__wr_req_3a; // From memory of Memory.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] insn_2a; // From issue of Issue.v + wire [31:0] insn_3a; // From execute of Execute.v + wire [31:0] op0_2a; // From decode of Decode.v + wire [31:0] op0_3a; // From execute of Execute.v + wire [31:0] op1_2a; // From decode of Decode.v + wire [31:0] op1_3a; // From execute of Execute.v + wire [31:0] op2_2a; // From decode of Decode.v + wire [31:0] op2_3a; // From execute of Execute.v + wire [31:0] pc_1a; // From fetch of Fetch.v + wire [31:0] pc_2a; // From issue of Issue.v + wire [31:0] pc_3a; // From execute of Execute.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_3a; // 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 [3:0] rf__read_3_3a; // From memory of Memory.v + wire [31:0] spsr_2a; // From decode of Decode.v + wire [31:0] spsr_3a; // From execute of Execute.v + wire stall_0a; // From issue of Issue.v + wire [31:0] write_data_3a; // From execute of Execute.v + wire [3:0] write_num_3a; // From execute of Execute.v + wire write_reg_3a; // From execute of Execute.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( + /* DCache AUTO_TEMPLATE ( .clk(clk), - .addr(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), - .bus_req(bus_req_dcache), .bus_ack(bus_ack_dcache), - .bus_addr(bus_addr_dcache), .bus_rdata(bus_rdata), - .bus_wdata(bus_wdata_dcache), .bus_rd(bus_rd_dcache), - .bus_wr(bus_wr_dcache), .bus_ready(bus_ready)); + .bus_req(bus_req_dcache), + .bus_ack(bus_ack_dcache), + .bus_addr(bus_addr_dcache), + .bus_rdata(bus_rdata), + .bus_wdata(bus_wdata_dcache), + .bus_rd(bus_rd_dcache), + .bus_wr(bus_wr_dcache), + .bus_ready(bus_ready), + ); + */ + DCache dcache( + /*AUTOINST*/ + // Outputs + .dc__rw_wait_3a (dc__rw_wait_3a), + .dc__rd_data_3a (dc__rd_data_3a[31:0]), + .bus_req (bus_req_dcache), // Templated + .bus_addr (bus_addr_dcache), // Templated + .bus_wdata (bus_wdata_dcache), // Templated + .bus_rd (bus_rd_dcache), // Templated + .bus_wr (bus_wr_dcache), // Templated + // Inputs + .clk (clk), // Templated + .dc__addr_3a (dc__addr_3a[31:0]), + .dc__rd_req_3a (dc__rd_req_3a), + .dc__wr_req_3a (dc__wr_req_3a), + .dc__wr_data_3a (dc__wr_data_3a[31:0]), + .bus_ack (bus_ack_dcache), // Templated + .bus_rdata (bus_rdata), // Templated + .bus_ready (bus_ready)); // Templated `ifdef verilator BigBlockRAM @@ -138,77 +239,225 @@ module System(input clk); .bus_wdata(bus_wdata), .bus_rd(bus_rd), .bus_wr(bus_wr), .bus_ready(bus_ready_blockram)); + /* Fetch AUTO_TEMPLATE ( + .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_0a), + .jmp_0a (jmp), // Templated + .jmppc_0a (jmppc)); // Templated + /* Issue AUTO_TEMPLATE ( + .stall_1a(stall_cause_execute), + .flush_1a(execute_out_backflush | writeback_out_backflush), + .cpsr_1a(writeback_out_cpsr), + ); + */ 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_2a), + .pc_2a (pc_2a[31:0]), + .insn_2a (insn_2a[31:0]), + // Inputs + .clk (clk), + .Nrst (Nrst), + .stall_1a (stall_cause_execute), // Templated + .flush_1a (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_3a (rf__rdata_3_3a[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_3a (rf__read_3_3a[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)); - + .cpsr_1a(writeback_out_cpsr), + .spsr_1a(writeback_out_spsr), + ); + */ + Decode decode( + /*AUTOINST*/ + // Outputs + .op0_2a (op0_2a[31:0]), + .op1_2a (op1_2a[31:0]), + .op2_2a (op2_2a[31:0]), + .carry_2a (carry_2a), + .cpsr_2a (cpsr_2a[31:0]), + .spsr_2a (spsr_2a[31:0]), + .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]), + .cpsr_1a (writeback_out_cpsr), // Templated + .spsr_1a (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 AUTO_TEMPLATE ( + .stall_2a(stall_cause_memory), + .flush_2a(writeback_out_backflush), + .outstall_2a(stall_cause_execute), + .jmp_2a(jmp_out_execute), + .jmppc_2a(jmppc_out_execute), + ); + */ Execute execute( - .clk(clk), .Nrst(1'b0), - .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), - .op2(decode_out_op2), .carry(decode_out_carry), - .outstall(stall_cause_execute), .outbubble(bubble_out_execute), - .write_reg(execute_out_write_reg), .write_num(execute_out_write_num), - .write_data(execute_out_write_data), - .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), .outcpsrup(execute_out_cpsrup)); + /*AUTOINST*/ + // Outputs + .outstall_2a (stall_cause_execute), // Templated + .bubble_3a (bubble_3a), + .cpsr_3a (cpsr_3a[31:0]), + .spsr_3a (spsr_3a[31:0]), + .cpsrup_3a (cpsrup_3a), + .write_reg_3a (write_reg_3a), + .write_num_3a (write_num_3a[3:0]), + .write_data_3a (write_data_3a[31:0]), + .jmppc_2a (jmppc_out_execute), // Templated + .jmp_2a (jmp_out_execute), // Templated + .pc_3a (pc_3a[31:0]), + .insn_3a (insn_3a[31:0]), + .op0_3a (op0_3a[31:0]), + .op1_3a (op1_3a[31:0]), + .op2_3a (op2_3a[31:0]), + // Inputs + .clk (clk), + .Nrst (Nrst), + .stall_2a (stall_cause_memory), // Templated + .flush_2a (writeback_out_backflush), // Templated + .bubble_2a (bubble_2a), + .pc_2a (pc_2a[31:0]), + .insn_2a (insn_2a[31:0]), + .cpsr_2a (cpsr_2a[31:0]), + .spsr_2a (spsr_2a[31:0]), + .op0_2a (op0_2a[31:0]), + .op1_2a (op1_2a[31:0]), + .op2_2a (op2_2a[31:0]), + .carry_2a (carry_2a)); assign execute_out_backflush = jmp; - assign cp_insn = insn_out_execute; - Memory memory( - .clk(clk), .Nrst(1'b0), - /* 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), .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), + assign cp_insn = insn_3a; + /* stall? */ + /* Memory AUTO_TEMPLATE ( + .flush(writeback_out_backflush), + .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), .outcpsrup(memory_out_cpsrup) /* XXX data_size */); + .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), + .outcpsrup(memory_out_cpsrup), + ); + */ + Memory memory( + /*AUTOINST*/ + // Outputs + .dc__addr_3a (dc__addr_3a[31:0]), + .dc__rd_req_3a (dc__rd_req_3a), + .dc__wr_req_3a (dc__wr_req_3a), + .dc__wr_data_3a (dc__wr_data_3a[31:0]), + .dc__data_size_3a (dc__data_size_3a[2:0]), + .rf__read_3_3a (rf__read_3_3a[3:0]), + .cp_req (cp_req), // Templated + .cp_rnw (cp_rnw), // Templated + .cp_write (cp_write), // Templated + .outstall (stall_cause_memory), // Templated + .outbubble (bubble_out_memory), // Templated + .outpc (pc_out_memory), // Templated + .outinsn (insn_out_memory), // Templated + .out_write_reg (memory_out_write_reg), // Templated + .out_write_num (memory_out_write_num), // Templated + .out_write_data (memory_out_write_data), // Templated + .outspsr (memory_out_spsr), // Templated + .outcpsr (memory_out_cpsr), // Templated + .outcpsrup (memory_out_cpsrup), // Templated + // Inputs + .clk (clk), + .Nrst (Nrst), + .flush (writeback_out_backflush), // Templated + .dc__rw_wait_3a (dc__rw_wait_3a), + .dc__rd_data_3a (dc__rd_data_3a[31:0]), + .rf__rdata_3_3a (rf__rdata_3_3a[31:0]), + .cp_ack (cp_ack), // Templated + .cp_busy (cp_busy), // Templated + .cp_read (cp_read), // Templated + .bubble_3a (bubble_3a), + .pc_3a (pc_3a[31:0]), + .insn_3a (insn_3a[31:0]), + .op0_3a (op0_3a[31:0]), + .op1_3a (op1_3a[31:0]), + .op2_3a (op2_3a[31:0]), + .spsr_3a (spsr_3a[31:0]), + .cpsr_3a (cpsr_3a[31:0]), + .cpsrup_3a (cpsrup_3a), + .write_reg_3a (write_reg_3a), + .write_num_3a (write_num_3a[3:0]), + .write_data_3a (write_data_3a[31:0])); 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), @@ -225,10 +474,10 @@ 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: 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); + $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_0a, bubble_2a, insn_2a, pc_2a); + $display("%3d: DECODE: op0 %08x, op1 %08x, op2 %08x, carry %d", clockno, op0_2a, op1_2a, op2_2a, carry_2a); + $display("%3d: EXEC: Stall: %d, Bubble: %d, Instruction: %08x, PC: %08x, Reg: %d, [%08x -> %d], Jmp: %d [%08x]", clockno, stall_cause_execute, bubble_3a, insn_3a, pc_3a, write_reg_3a, write_data_3a, write_num_3a, 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); end