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Silence exception warning

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This commit is contained in:
Andreas Traber 2015-08-28 11:31:09 +02:00
parent d99621f699
commit 0188441cc7
1 changed files with 15 additions and 12 deletions
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27
exc_controller.sv
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@ -207,10 +207,6 @@ module exc_controller
ExcIR: begin
if (jump_in_id_i == 2'b00)
begin // no delay slot
// synopsys translate_off
$display("%t: Entering exception routine.", $time);
// synopsys translate_on
force_nop_o = 1'b1;
exc_pc_sel_o = 1'b1;
save_pc_if_o = 1'b1; // save current PC
@ -234,10 +230,6 @@ module exc_controller
// Illegal instruction encountered, we directly jump to
// the ISR without flushing the pipeline
ExcIllegalInsn: begin
// synopsys translate_off
$display("%t: Entering exception routine.", $time);
// synopsys translate_on
force_nop_o = 1'b1;
exc_pc_sel_o = 1'b1;
exc_pc_mux_o = `EXC_PC_ILLINSN;
@ -255,10 +247,6 @@ module exc_controller
// Execute delay slot for IR
NopDelayIR:
begin
// synopsys translate_off
$display("%t: Entering exception routine.", $time);
// synopsys translate_on
force_nop_o = 1'b1;
exc_pc_sel_o = 1'b1;
save_pc_if_o = 1'b1; // save current PC
@ -344,4 +332,19 @@ module exc_controller
end
end
`ifndef SYNTHESIS
// synopsys translate_off
// make sure we are called later so that we do not generate messages for
// glitches
always_ff @(negedge clk)
begin : EXC_DISPLAY
if ( rst_n == 1'b1 )
begin
if (exc_reason_n != ExcNone && exc_reason_n != ExcFlush)
$display("%t: Entering exception routine.", $time);
end
end
// synopsys translate_on
`endif
endmodule // exc_controller