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/* $Id: aeMB2_xslif.v,v 1.6 2008-04-27 16:04:12 sybreon Exp $
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/* $Id: aeMB2_xslif.v,v 1.7 2008-04-27 16:41:46 sybreon Exp $
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**
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**
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** AEMB2 EDK 6.2 COMPATIBLE CORE
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** AEMB2 EDK 6.2 COMPATIBLE CORE
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** Copyright (C) 2004-2008 Shawn Tan <shawn.tan@aeste.net>
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** Copyright (C) 2004-2008 Shawn Tan <shawn.tan@aeste.net>
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**
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**
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** This file is part of AEMB.
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** This file is part of AEMB.
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xwb_wre_o <= #1 imm_of[15]; // PUT
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xwb_wre_o <= #1 imm_of[15]; // PUT
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xwb_tag_o <= #1 imm_of[13]; // cGET/cPUT
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xwb_tag_o <= #1 imm_of[13]; // cGET/cPUT
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xwb_dat_o <= #1 opa_of; // Latch output
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xwb_dat_o <= #1 opa_of; // Latch output
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xwb_mx <= #1 (xwb_ack_i) ? xwb_dat_i : xwb_lat; // Latch input
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xwb_mx <= #1 (xwb_ack_i) ?
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xwb_dat_i : // stalled from XWB
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xwb_lat; // Latch earlier
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end // if (dena)
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end // if (dena)
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assign xwb_sel_o = 4'hF;
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assign xwb_sel_o = 4'hF;
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if (grst) begin
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if (grst) begin
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/*AUTORESET*/
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/*AUTORESET*/
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// Beginning of autoreset for uninitialized flops
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// Beginning of autoreset for uninitialized flops
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xwb_lat <= 32'h0;
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xwb_lat <= 32'h0;
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// End of automatics
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// End of automatics
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end else if (xwb_stb_o) begin
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end else if (xwb_ack_i) begin
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xwb_lat <= #1 xwb_dat_i;
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xwb_lat <= #1 xwb_dat_i;
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end
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end
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always @(posedge gclk)
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always @(posedge gclk)
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if (grst) begin
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if (grst) begin
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/*AUTORESET*/
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/*AUTORESET*/
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// Beginning of autoreset for uninitialized flops
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// Beginning of autoreset for uninitialized flops
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xBLK <= 1'h0;
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xBLK <= 1'h0;
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xwb_stb_o <= 1'h0;
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xwb_stb_o <= 1'h0;
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// End of automatics
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// End of automatics
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end else if (dena) begin
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end else if (xwb_fb) begin
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xBLK <= #1 imm_of[14]; // nGET/nPUT
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xBLK <= #1 imm_of[14]; // nGET/nPUT
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xwb_stb_o <= #1 (dena) ? !opc_of[5] & opc_of[4] & opc_of[3] & opc_of[1] : // GET/PUT
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xwb_stb_o <= #1 (dena) ? !opc_of[5] & opc_of[4] & opc_of[3] & opc_of[1] : // GET/PUT
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(xwb_stb_o & !xwb_ack_i);
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(xwb_stb_o & !xwb_ack_i);
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end
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end
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endmodule // aeMB2_xslif
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endmodule // aeMB2_xslif
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/*
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/*
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$Log: not supported by cvs2svn $
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$Log: not supported by cvs2svn $
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Revision 1.6 2008/04/27 16:04:12 sybreon
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Fixed minor typos.
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Revision 1.5 2008/04/26 17:57:43 sybreon
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Revision 1.5 2008/04/26 17:57:43 sybreon
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Minor performance improvements.
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Minor performance improvements.
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Revision 1.4 2008/04/26 01:09:06 sybreon
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Revision 1.4 2008/04/26 01:09:06 sybreon
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Passes basic tests. Minor documentation changes to make it compatible with iverilog pre-processor.
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Passes basic tests. Minor documentation changes to make it compatible with iverilog pre-processor.
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