you snipeer
authorChristopher Lu <lu@stop.hsd1.pa.comcast.net>
Mon, 5 Jan 2009 09:21:39 +0000 (04:21 -0500)
committerChristopher Lu <lu@stop.hsd1.pa.comcast.net>
Mon, 5 Jan 2009 09:21:39 +0000 (04:21 -0500)
system.v

index 736e6f2..4a485c3 100644 (file)
--- a/system.v
+++ b/system.v
@@ -54,6 +54,10 @@ module System(input clk);
        wire [31:0] pc_out_fetch;
        wire [31:0] pc_out_issue;
 
+       wire execute_outflush = jmp;
+       wire issue_flush = execute_outflush;
+       wire execute_flush = 1'b0;
+
        BusArbiter busarbiter(.bus_req(bus_req), .bus_ack(bus_ack));
 
        ICache icache(
@@ -84,7 +88,7 @@ module System(input clk);
        Issue issue(
                .clk(clk),
                .Nrst(1'b1 /* XXX */),
-               .stall(stall_cause_execute), .flush(1'b0 /* XXX */),
+               .stall(stall_cause_execute), .flush(issue_flush),
                .inbubble(bubble_out_fetch), .insn(insn_out_fetch),
                .inpc(pc_out_fetch), .cpsr(32'b0 /* XXX */),
                .outstall(stall_cause_issue), .outbubble(bubble_out_issue),
@@ -106,7 +110,7 @@ module System(input clk);
        
        Execute execute(
                .clk(clk), .Nrst(1'b0),
-               .stall(1'b0 /* XXX */), .flush(1'b0 /* XXX */),
+               .stall(1'b0 /* XXX */), .flush(execute_flush),
                .inbubble(bubble_out_issue), .pc(pc_out_issue), .insn(insn_out_issue),
                .cpsr(32'b0 /* XXX */), .spsr(decode_out_spsr), .op0(decode_out_op0), .op1(decode_out_op1),
                .op2(decode_out_op2), .carry(decode_out_carry),
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