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996 Commits 7 Branches 23 Tags
fa382903675375c316c125ed435d90e993e43d7a
Commit Graph
186 Commits
Author SHA1 Message Date
jens 90b9112c5b - fixed wrong EPC for ITLB and DTLB 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1030 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-31 10:49:37 +00:00
jens 007c2ade02 - put TLB queries into pipeline 
- removed TLB queries from Caches
- removed output register from TLB
- cleaned up
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1029 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-25 18:41:04 +00:00
jens 537b5d3fd4 - TLB enabled by default 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1028 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-25 18:39:36 +00:00
jens 03f21b37d4 - added tlb_query results to pipe-stages ID and EX 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1027 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-25 18:37:51 +00:00
jens 4c7100a5a7 - added headers 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1026 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-25 18:00:55 +00:00
jens 41939cf290 - cleaned up 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1025 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-25 17:59:12 +00:00
jens 8a6d599836 - check for unmapped hit now made on registered va 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1024 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-25 17:33:35 +00:00
jens 02e35db54c - put TLB queries into pipeline 
- removed TLB queries from Caches
- removed output register from TLB
- cleaned up
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1023 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-25 17:04:51 +00:00
jens cb32a5aeed - reduced tpd 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1022 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-25 17:01:18 +00:00
jens f5bf4fdb81 - still try to add TLB 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1019 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-24 10:31:18 +00:00
jens 41513a9de0 - minor changes 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1018 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-24 10:30:51 +00:00
jens feb60baa33 - renamed some pipe registers 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1017 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-20 20:05:00 +00:00
jens 4ba64fdb3b - integrated ITLB and DTLB into pipeline. 
TLB queries come from pipeline if generic PIPE_ITLB or  PIPE_DTLB is true. Cache query is then disabled.
  If generic PIPE_ITLB or  PIPE_DTLB set to false queries come from cache.
  Piped TLB queries are piped translations with latency of two clocks. Piped translation allow physically indexed and physically tagged caches
- reworked PC logic
- prepared for individual BCUs in EX, MEM and WB stage
- changed LTS and LTU generation in ALU

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1016 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-18 19:03:43 +00:00
jens 81698e2391 - integrated ITLB and DTLB into pipeline. 
TLB queries come from pipeline if generic PIPE_ITLB or  PIPE_DTLB is true. Cache query is then disabled.
  If generic PIPE_ITLB or  PIPE_DTLB set to false queries come from cache.
  Piped TLB queries are piped translations with latency of two clocks. Piped translation allow physically indexed and physically tagged caches
- reworked PC logic
- prepared for individual BCUs in EX, MEM and WB stage
- changed LTS and LTU generation in ALU

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1015 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-18 18:56:42 +00:00
jens 6c7780bee9 - minor changes 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1014 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-18 09:25:24 +00:00
jens a3b0766258 - minor changes 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1012 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-18 09:07:16 +00:00
jens e5a31bdf7c Initial revision 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1010 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-18 08:43:09 +00:00
jens eacfe7f9d2 Branch entry: 
- added TLB stuff
- slightly redesigned
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1003 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-18 08:03:26 +00:00
jens 04bb65792b Initial revision 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/branches/BRANCH_MIPS_TLB@1002 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-18 08:02:23 +00:00
jens c0bf39885e - debug output is now record 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@999 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-18 07:07:27 +00:00
jens ae123fadc7 - change instructionamesfor nop and illegal 
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git-svn-id: http://moon:8086/svn/vhdl/trunk@997 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-08-10 17:24:44 +00:00
jens 2a83979a5b - added WE_I for rom 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@988 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-07-28 19:51:04 +00:00
jens 1926d23b44 - avoid of undefined data in forwarding logic during simulation. 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@982 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-07-20 18:41:32 +00:00
jens f002777772 - cleaned up. 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@981 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-07-20 18:39:46 +00:00
jens 280db0f521 - uses now new generic DPRAMs 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@942 cc03376c-175c-47c8-b038-4cd826a8556b
 2013-02-09 09:26:12 +00:00
jens 4a1d1df404 - added dedicated cpu_clk 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@927 cc03376c-175c-47c8-b038-4cd826a8556b
 2011-07-24 07:04:09 +00:00
jens 03c23a0271 Initial version 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@926 cc03376c-175c-47c8-b038-4cd826a8556b
 2011-07-24 06:56:28 +00:00
jens 1a4f894996 - increased revision to R13 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@793 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-03-13 16:49:12 +00:00
jens fcce3dcf32 - made GPIO 0 bidirectional (added GPIO_DIR register) 
- removed GPIO 1
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@792 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-03-13 16:46:21 +00:00
jens aad1f852b5 - improved instant_raw logic. Less false alarms 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@769 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-03-11 11:36:10 +00:00
jens 148c71d2b4 update 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@759 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-03-07 16:11:03 +00:00
jens 9bf3b46cf3 - added generic 'simulate_tx' for output of TX-Data into simulation log 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@758 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-03-07 16:10:57 +00:00
jens c6983bd768 - added MRDY_O for I/D-Cache 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@757 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-03-07 16:00:53 +00:00
jens e5f5e1d0e3 Initial version 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@756 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-22 19:48:45 +00:00
jens daed8e12a0 - cleaned up 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@753 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-14 15:44:22 +00:00
jens 5889dc2d4a - added new FIFO generics 
- no STB_O if Bus input FIFO full.
  => Bus out FIFO is read if SRDY_I = '1'  and MRDY_O = '1'
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@748 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-11 21:56:03 +00:00
jens 385aa5e008 - changed frequencies into MHz units (real data type) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@733 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-09 07:25:49 +00:00
jens c42c0ba5b8 - added asynchronous BUS FIFOs 
- added cpu_clk
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@726 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-07 19:12:19 +00:00
jens e0e8566bec - made time specs in nano seconds 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@725 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-07 19:11:55 +00:00
jens 7f8a82d9ba - added asynchronous BUS FIFOs 
- added cpu_clk
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@724 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-07 19:01:33 +00:00
jens 2e3f14ea17 - added 16-depth Bus input FIFO (2 cycles additional latency) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@709 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-06 14:07:47 +00:00
jens 0b403e7a58 Minor changes 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@708 cc03376c-175c-47c8-b038-4cd826a8556b
 2010-02-06 13:16:05 +00:00
jens 1f387fdd75 - Loads image for bugfix: instructions uncached LW => cached LW (with cache-miss) was buggy. 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@682 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-11-24 11:35:08 +00:00
jens 21b41da6e2 - bugfix: instructions uncached LW => cached LW (with cache-miss) was buggy. 
Symptoms:
  ...
1.: lw     $a0, 32($s0)  # Uncached load from memory mapped I/O
2.: lw     $a2, 4($v0)   # Cached load and cache-miss.
                                  # $a0 receives same value as $a2.
                                  # CPU skips writing $a0 due to busy flag of D-Cache,
                                  # which is already active in the previous cycle
...

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@681 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-11-24 11:33:37 +00:00
jens 3eef19bb28 - removed unused 'en' pin. 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@680 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-11-24 11:30:36 +00:00
jens 2db39f4504 - zero lead-in / lead-out, 
but added 4 cycles relelease necessary for writes. See tWR in datasheet)
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@568 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-30 13:55:06 +00:00
jens a38101e448 - Minor changes 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@566 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-30 12:27:36 +00:00
jens e85aded32a update 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@565 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-30 12:27:18 +00:00
jens 9ad3c6cd4e - now 30 ns 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@562 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-29 22:57:11 +00:00
jens a3d54edf64 - added 'page_mode_en' for async_port 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@551 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-28 22:45:36 +00:00