Global: More re-piping, and a bugfix for a bug recently introduced. (Regressions...
[firearm.git] / system.v
index de3fd74..071296c 100644 (file)
--- a/system.v
+++ b/system.v
@@ -116,12 +116,20 @@ module System(input clk, input 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            carry_2a;               // From decode of Decode.v
+       wire [31:0]     cpsr_2a;                // From decode of Decode.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]     op0_2a;                 // From decode of Decode.v
+       wire [31:0]     op1_2a;                 // From decode of Decode.v
+       wire [31:0]     op2_2a;                 // From decode of Decode.v
        wire [31:0]     pc_1a;                  // From fetch of Fetch.v
+       wire [31:0]     pc_2a;                  // From issue of Issue.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
@@ -129,6 +137,7 @@ module System(input clk, input rst
        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 [31:0]     spsr_2a;                // From decode of Decode.v
        wire            stall_0a;               // From issue of Issue.v
        // End of automatics
 
@@ -187,7 +196,6 @@ module System(input clk, input rst
                .bus_ready(bus_ready_blockram));
 
        /* Fetch AUTO_TEMPLATE (
-               .stall_0a(stall_cause_issue),
                .jmp_0a(jmp),
                .jmppc_0a(jmppc),
                );
@@ -205,31 +213,28 @@ module System(input clk, input rst
                    .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
+                   .stall_0a           (stall_0a),
                    .jmp_0a             (jmp),                   // Templated
                    .jmppc_0a           (jmppc));                // Templated
        
        /* Issue AUTO_TEMPLATE (
                .stall_1a(stall_cause_execute),
-               .flush(execute_out_backflush | writeback_out_backflush),
+               .flush_1a(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(
                /*AUTOINST*/
                    // Outputs
                    .stall_0a           (stall_0a),
-                   .bubble_2a          (bubble_out_issue),      // Templated
-                   .pc_2a              (pc_out_issue),          // Templated
-                   .insn_2a            (insn_out_issue),        // Templated
+                   .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              (execute_out_backflush | writeback_out_backflush), // 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]),
@@ -264,25 +269,19 @@ module System(input clk, input rst
        
        /* Decode AUTO_TEMPLATE (
                .stall(stall_cause_execute),
-               .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),
+               .cpsr_1a(writeback_out_cpsr),
+               .spsr_1a(writeback_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
+                     .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]),
@@ -291,25 +290,64 @@ module System(input clk, input rst
                      .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
+                     .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(writeback_out_backflush),
+               .outstall_2a(stall_cause_execute),
+               .bubble_3a(bubble_out_execute),
+               .write_reg_3a(execute_out_write_reg),
+               .write_num_3a(execute_out_write_num),
+               .write_data_3a(execute_out_write_data),
+               .jmp_2a(jmp_out_execute),
+               .jmppc_2a(jmppc_out_execute),
+               .pc_3a(pc_out_execute),
+               .insn_3a(insn_out_execute),
+               .op0_3a(execute_out_op0),
+               .op1_3a(execute_out_op1),
+               .op2_3a(execute_out_op2),
+               .outcpsr(execute_out_cpsr),
+               .outspsr(execute_out_spsr),
+               .outcpsrup(execute_out_cpsrup),
+               );
+       */      
        Execute execute(
-               .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),
-               .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_out_execute),    // Templated
+                       .outcpsr        (execute_out_cpsr),      // Templated
+                       .outspsr        (execute_out_spsr),      // Templated
+                       .outcpsrup      (execute_out_cpsrup),    // Templated
+                       .write_reg_3a   (execute_out_write_reg), // Templated
+                       .write_num_3a   (execute_out_write_num), // Templated
+                       .write_data_3a  (execute_out_write_data), // Templated
+                       .jmppc_2a       (jmppc_out_execute),     // Templated
+                       .jmp_2a         (jmp_out_execute),       // Templated
+                       .pc_3a          (pc_out_execute),        // Templated
+                       .insn_3a        (insn_out_execute),      // Templated
+                       .op0_3a         (execute_out_op0),       // Templated
+                       .op1_3a         (execute_out_op1),       // Templated
+                       .op2_3a         (execute_out_op2),       // Templated
+                       // Inputs
+                       .clk            (clk),
+                       .Nrst           (Nrst),
+                       .stall_2a       (stall_cause_memory),    // Templated
+                       .flush          (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;
@@ -356,8 +394,8 @@ module System(input clk, input rst
                clockno <= clockno + 1;
                $display("------------------------------------------------------------------------------");
                $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: 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_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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