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79de05d54cea65eeee48dae82fc2e7d421a8cc4b
Commit Graph
384 Commits
Author SHA1 Message Date
jens 79de05d54c 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@448 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:11:45 +00:00
jens be038f16ba - changed irg-handler prototype: irq-handler now obtain pointer to exception context 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@447 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:06:30 +00:00
jens 4452820f09 - added function to register exception handlers 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@446 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:05:33 +00:00
jens 133df33e35 - increased exception stack frame to 32kB 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@445 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:04:59 +00:00
jens 47d5b9ac7f - removed unportable clock() used time() instead 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@444 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:04:21 +00:00
jens 1be58489b0 - added function for I/D-cache invalidate 
- added functions for LWC0 and SWC0
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@443 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:03:20 +00:00
jens cf72d81cd3 - 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@442 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:02:10 +00:00
jens 0b1cd9b7b1 - added PrintBuffer8() and memdump() 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@441 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:01:08 +00:00
jens f3ee78329b - uart_baud rate is now written as DWORD 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@440 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 14:00:29 +00:00
jens 842553943a - added switch EB/EL to switch endianess 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@439 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:56:58 +00:00
jens a00c0c1a0d - added call to debugger init routine 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@438 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:46:27 +00:00
jens 30340bd6cf - added mixed I/D exceptions (13, 14) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@437 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:46:00 +00:00
jens 4372265ee2 - added big-endian to lib-searchpath 
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git-svn-id: http://moon:8086/svn/vhdl/trunk@436 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:43:41 +00:00
jens e19528b20f - added support functions: 
flash_aligned_addr_by...() to obtain block aligned addresses
- removed query in flash_find due to stack-problems
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@435 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:41:41 +00:00
jens 893e93530d - 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@434 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:39:59 +00:00
jens 2fb198d941 - added port 'eb' for Endian-big selection 
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git-svn-id: http://moon:8086/svn/vhdl/trunk@433 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:23:30 +00:00
jens d3c322ca48 - bugfix: wrong 'pa_offset' when big-endian and half-word load/store 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@431 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:22:31 +00:00
jens a3c4ba6e82 - minor improvements for load/store shifter 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@430 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:21:39 +00:00
jens 1c5db27de0 - removed SEL for register writes 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@429 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-15 13:19:23 +00:00
jens f34847adb1 - some new control signals in cop0_ctrl 
- added exc-Flag in WB_stage
- simplified int signals

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@428 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-11 08:37:11 +00:00
jens b5b15b90e2 - Int-port is now at cop instead of pipeline 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@427 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-11 08:35:46 +00:00
jens d3e486b6d5 Reworked exception FSM: 
- Pipeline is now flushed and finished and all dependencies are solved before entering exception handler
  - User mode writes on status register are now correctly finished before status is altered by exception
  - Processor stalls for 2 cycles after RFE to ensure that status register is correct in user mode
- Added int-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@426 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-11 08:34:50 +00:00
jens ae50048039 - reworked exception stuff 
- removed int-port (it's now in cop)

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@425 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-11 08:30:41 +00:00
jens a94fb20d4f - 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@424 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-07 07:16:11 +00:00
jens 5b9f651efe -Mips-Pipeline stages: added missing register for PC-Branch 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@423 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-06 11:14:28 +00:00
jens 68ba887854 -Mips-Pipeline: added missing register for PC-Branch 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@422 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-04-06 10:35:48 +00:00
jens 6983e7ebec - removed weird feature, which prevents cop registers to be written in front of exception. 
cop register behavior is now hopefully the same as general registers.
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@421 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-30 23:29:33 +00:00
jens 2e1850c19b - redesigned 
- added invalidate_all and invalidate_at control
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@420 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-30 22:26:15 +00:00
jens 599380bd10 - 'dcache_en' now doesn't depend on CYC_O_dmem_rd or write_busy 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@419 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-30 22:25:29 +00:00
jens eb22574d20 - changed reset generator and added BIU-Reset signal 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@418 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-30 09:05:19 +00:00
jens 1cbfc94fde - added control 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@417 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-29 12:03:14 +00:00
jens 4dc562bfe5 - removed MUX for RESET_VECTOR in proc_stage_pc: 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@416 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-28 18:27:05 +00:00
jens e89e61291a - assigned c0_ctrl to BIU for cache_ctrl 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@415 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-28 18:26:33 +00:00
jens ad0284bd10 - added cache_ctrl input 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@414 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-28 18:25:53 +00:00
jens 962cffac1d - added cache_ctrl record. Used in c0_ctrl_out 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@413 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-28 18:25:23 +00:00
jens 7892b38128 - added Cop instructions COP0 32, COP0 33, COP 34, COP0 35: 
ICACHE_invalidate_at, ICACHE_invalidate_all,
   DCACHE_invalidate_at, DCACHE_invalidate_all.

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@412 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-28 18:24:35 +00:00
jens 2761d5926b - added timer inrterrupt 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@411 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-27 11:16:54 +00:00
jens 241658d3ba - removed idecode_rom.vhd 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@409 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-20 22:42:32 +00:00
jens 8054aedcb5 - 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@408 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-20 20:27:23 +00:00
jens dbff927a63 - cop ouput register is now latch (better timing) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@407 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-20 19:15:11 +00:00
jens 52e9decf78 - added instructions 'lwc0' and 'swc0' for testing (which are usually invalid) 
- due to cop_reg_we in MEM_Stage, the output register is removed
  (timing is slightly degraded). The reg pointer is delayed instead by one cycle
- test-reg is now writable in user mode regardles of cop0 usability.
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@406 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-18 23:30:08 +00:00
jens 2dfce691ce - added instructions 'lwcz' and 'swcz'. 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@405 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-18 22:40:33 +00:00
jens c97b7cdf39 - 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@404 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-18 10:08:05 +00:00
jens 7225dcfa87 - removed idecode_rom.vhd 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@403 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-17 09:49:57 +00:00
jens 1a0e8f08f5 - removed cop_reg_rd 
if cop is read is now implemented into instruction decoder
- generate 'stall_all' signal if ID/EX/MEM stall is active

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@402 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-17 09:39:07 +00:00
jens b201db2193 - new signal 'cop_read' in ctrl_lines 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@401 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-17 09:37:39 +00:00
jens 5140d7a6fa - - removed cop_reg_rd 
if cop is read is now implemented into instruction decoder

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@400 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-17 09:36:58 +00:00
jens 9cb7ef5930 - more decoding of cop_signals. 
New cop_read is now implemented into instruction decoder

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@399 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-17 09:36:33 +00:00
jens 4bf6b28c71 - removed 'reg_rd' which is fed into pipeline. 
if cop is read is now implemented into instruction decoder
- simplified use of stall signals
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@398 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-17 09:35:39 +00:00
jens e2c40b91a1 - added COPz debugging identifier 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@397 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-03-16 11:46:24 +00:00