| Line 42... |
Line 42... |
//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//
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//
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// CVS Revision History
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// CVS Revision History
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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 1.2 2002/01/14 06:18:22 lampret
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// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
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//
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// Revision 1.1 2002/01/03 08:16:15 lampret
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// Revision 1.1 2002/01/03 08:16:15 lampret
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// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
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// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
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//
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//
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// Revision 1.10 2001/11/13 10:02:21 lampret
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// Revision 1.10 2001/11/13 10:02:21 lampret
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// Added 'setpc'. Renamed some signals (except_flushpipe into flushpipe etc)
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// Added 'setpc'. Renamed some signals (except_flushpipe into flushpipe etc)
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| Line 89... |
Line 92... |
clk, rst,
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clk, rst,
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// Internal i/f
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// Internal i/f
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multicycle, flushpipe, extend_flush, lsu_stall, if_stall,
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multicycle, flushpipe, extend_flush, lsu_stall, if_stall,
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lsu_unstall, du_stall, mac_stall,
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lsu_unstall, du_stall, mac_stall,
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force_dslot_fetch,
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force_dslot_fetch, abort_ex,
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genpc_freeze, if_freeze, id_freeze, ex_freeze, wb_freeze
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genpc_freeze, if_freeze, id_freeze, ex_freeze, wb_freeze
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);
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);
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//
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//
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// I/O
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// I/O
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| Line 105... |
Line 108... |
input extend_flush;
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input extend_flush;
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input lsu_stall;
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input lsu_stall;
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input if_stall;
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input if_stall;
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input lsu_unstall;
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input lsu_unstall;
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input force_dslot_fetch;
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input force_dslot_fetch;
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input abort_ex;
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input du_stall;
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input du_stall;
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input mac_stall;
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input mac_stall;
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output genpc_freeze;
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output genpc_freeze;
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output if_freeze;
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output if_freeze;
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output id_freeze;
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output id_freeze;
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Line 142... |
assign if_freeze = id_freeze | extend_flush;
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assign if_freeze = id_freeze | extend_flush;
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//assign id_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze | force_dslot_fetch) & ~flushpipe | du_stall;
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//assign id_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze | force_dslot_fetch) & ~flushpipe | du_stall;
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assign id_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze | force_dslot_fetch) | du_stall;
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assign id_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze | force_dslot_fetch) | du_stall;
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assign ex_freeze = wb_freeze;
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assign ex_freeze = wb_freeze;
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//assign wb_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze) & ~flushpipe | du_stall | mac_stall;
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//assign wb_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze) & ~flushpipe | du_stall | mac_stall;
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assign wb_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze) | du_stall | mac_stall;
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assign wb_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze) | du_stall | mac_stall | abort_ex;
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//
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//
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// Multicycle freeze
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// Multicycle freeze
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//
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//
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assign multicycle_freeze = |multicycle_cnt;
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assign multicycle_freeze = |multicycle_cnt;
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