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Author SHA1 Message Date
jens 6ac97e7bf3 added second UART 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@517 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 22:06:19 +00:00
jens 51ea254c82 removed error defines (they are in libsys.h) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@516 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 22:05:50 +00:00
jens eafadbfa05 added target: serdump 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@515 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 22:05:12 +00:00
jens a6cf47015c - initialization fix in write() 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@514 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 22:04:46 +00:00
jens 730714620d - added 'sys_flash_mem' 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@513 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 22:04:45 +00:00
jens 73dcae8d35 added more UART low-level functions 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@512 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 22:04:44 +00:00
jens abb030f663 added endian switch for convenient endian switching 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@511 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 22:02:57 +00:00
jens 749c8a6144 - added addtional UART (4 UARTS in total) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@510 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 21:33:41 +00:00
jens 9a1a5579bf Bugfix in gen_fill_mask_rom (wrong result on zero shift amounts due to width mismatch) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@509 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-14 21:15:31 +00:00
jens 47c0a1b682 - added tx-complete and tx-empty to ports 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@508 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-13 21:21:57 +00:00
jens 5b743dea38 - fixed broken tx-interrupt 
- added tx_int and rx_int to status reg
- tx-int is acked by writing to ctrl reg
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@507 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-13 21:21:22 +00:00
jens 38b70b722c - extended baudrate register from 8 to 16 bits, allowing very low baudrates 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@506 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-09 09:37:43 +00:00
jens a6b19c1621 - added two addtional UARTs 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@505 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-08 21:34:20 +00:00
jens 45d8f099ca - added two addtional UARTs. UART2 not operable (just loopback) due to synthesize problems - or a bug 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@504 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-08 21:34:00 +00:00
jens 15d9de633c - added two addtional UARTs 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@503 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-08 21:32:34 +00:00
jens b288e8ee43 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@502 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-08 21:31:57 +00:00
jens 4b25be2021 - removed odd dist-versions of FIFOs and RAM 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@501 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 17:19:11 +00:00
jens 8549615cd0 update to R12 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@500 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 17:18:05 +00:00
jens 822059724f 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@499 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 17:17:26 +00:00
jens c104a7b916 - added pin non-maskable interrupt (NMI). 
Exception vector is reset vector at (X"BFC00000")
- added pin 'eb' for endian little/big choice. 'eb' is sampled at reset
- UART(): merged TX and RX interrupt to one interrupt line

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@498 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 17:16:22 +00:00
jens 3a8641003e - added pin non-maskable interrupt (NMI). 
Exception vector is reset vector at (X"BFC00000")


Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@497 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 17:01:36 +00:00
jens 2424f52409 - added configurable endian flags 
- added more programs
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@496 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 16:50:16 +00:00
jens 237fc3d163 - changes, 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@495 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 16:49:32 +00:00
jens 21f33a1768 - added exception vector table. 
S/W can write exception handler entry to this table.
  Exception handler can now reside anywhere in memory.

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@494 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 16:48:28 +00:00
jens f706de00bb - _irq_dispatch(): IP masked by IM in software 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@493 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 16:45:29 +00:00
jens f3d4b8bdb3 - Hex reader entered at reset if GPIO.3 is active (ML402 South Button) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@492 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 16:44:02 +00:00
jens 48da5e410e - Flush of I/D-cache at boot 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@491 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 16:43:00 +00:00
jens e7b85e0138 - added pin non-maskable interrupt (NMI). 
Exception vector is reset vector at (X"BFC00000")


Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@490 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 16:41:26 +00:00
jens c5027772aa - added pin non-maskable interrupt (NMI). 
Exception vector is reset vector at (X"BFC00000")
-  Interrupt pending flags (IP) are not masked in hardware by IM.

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@489 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-10-03 16:40:29 +00:00
jens 63b60eee52 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@488 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-09 16:53:45 +00:00
jens 830f840b83 - 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@487 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-08 18:54:45 +00:00
jens 3d02793488 - detailed EX_stage according to implementation 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@486 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-08 17:25:09 +00:00
jens 27d59cb442 - COP dout generated from MEM_ex_result and DMEM_din with multiplexer, to reduce fanout of MEM.data. 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@485 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-08 14:00:28 +00:00
jens 1e0fc89d3a - added COP data lines to 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@484 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-08 12:39:24 +00:00
jens 2316880678 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@483 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-08 12:39:01 +00:00
jens e2da4a5108 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@482 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-08 12:38:22 +00:00
jens 331590cc36 - Status.TS tied high to indicate absence of an MMU 
- Removed possibility of writng read-only status bits
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@481 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-08 12:37:43 +00:00
jens 874ed6f824 del 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@480 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-08-07 12:04:54 +00:00
jens bea098d743 - doubled I-Cache size to 32kByte 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@479 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-10 09:47:24 +00:00
jens 1fe9a2c398 - replaced comparator-based fill-stage with rom-based fill-stage 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@478 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-09 19:19:03 +00:00
jens 6449f3fa78 - minor changes (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@477 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-08 22:19:35 +00:00
jens 1884f3158c - minor changes (bug) 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@476 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-08 21:48:31 +00:00
jens 9794a67ba6 - Reset vector is now injected during reset like an ordinary exception. 
This minimizes pc.nxt MUX (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@475 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-08 21:44:27 +00:00
jens 6f74cd1662 - removed register output latch (latch introduced global clock buffer, which is deprecated) 
- CPU is configured as BIG-endian
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@474 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-06 21:35:03 +00:00
jens f046307aa9 - removed reference to fifo_sync_dist. 
Use fifo_sync instead and specified ditributed ram_style
  in XCF-file during synthesis

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@473 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-06 21:30:23 +00:00
jens 0edf614e5e - removed reference to fifo_sync_dist. 
Use fifo_sync instead and specified ditributed ram_style
  in XCF-file during synthesis

Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@472 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-06 10:36:58 +00:00
jens eabf73aa4f - renamed pc.is_branch:boolean to pc.branch_take:std_logic 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@471 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-05 22:07:19 +00:00
jens 3de1c312bb - removed register output latch (latch introduced global clock buffer, which is deprecated) 
- added separate reg_pointer for read/write
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@470 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-05 11:07:02 +00:00
jens 1c17d74ae1 - removed INT_O_TX from UART. Use now common INT_O for RX/TX 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@469 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-03 09:30:58 +00:00
jens 134119db33 - bugfix: ICACHE_invalidate_at() after user-break was missing 
Committed on the Free edition of March Hare Software CVSNT Server.
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git-svn-id: http://moon:8086/svn/vhdl/trunk@468 cc03376c-175c-47c8-b038-4cd826a8556b
 2009-05-02 16:23:01 +00:00