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[/] [ion/] [trunk/] [vhdl] - Rev 72

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Rev Log message Author Age Path
72 Fixed stupid bug in SRAM write cycles (setup time violated)
Wait states implemented for SRAM wait and read cycles
ja_rd 4905d 12h /ion/trunk/vhdl
68 Updated pre-generated vhdl files ja_rd 4906d 00h /ion/trunk/vhdl
64 Refactored memory decoding logic
(wait states and read-only attributes unimplemented yet)
ja_rd 4906d 00h /ion/trunk/vhdl
63 DE-1 demo top module:
added registers for SD interface, switches and 7-seg display
ja_rd 4906d 00h /ion/trunk/vhdl
62 CPU fixed:
fixed bug in EPC load logic relative to mem_wait stalls
parametrized reset and trap vector addresses
ja_rd 4906d 00h /ion/trunk/vhdl
60 Forgot to upload new TB package!!
Without this, simulations don't work...
ja_rd 4906d 00h /ion/trunk/vhdl
59 cleaned up top vhdl module of demo
moved reset sync ff chain to top module
updated pre-generated demo file
ja_rd 4907d 14h /ion/trunk/vhdl
58 Cleaned up cache stub code ja_rd 4908d 00h /ion/trunk/vhdl
57 updated precompiled demo:
single 32-bit BROM instead of 4x8-bit
ja_rd 4908d 02h /ion/trunk/vhdl
48 Temporary fix to memory decoding constants ja_rd 4908d 06h /ion/trunk/vhdl
47 Pre-generated simulation test benches updated ja_rd 4908d 06h /ion/trunk/vhdl
46 First version of cache: stub, 1-word cache
Stub cache tested on simulation and HW, just a stub
Adapted CPU stall logic to 1st version of cache
Adapted all other modules for compatibility with cache
ja_rd 4908d 06h /ion/trunk/vhdl
43 added comments to dummy 'cache' stub ja_rd 4910d 14h /ion/trunk/vhdl
42 Added cache stub module, plus related test bench ja_rd 4912d 08h /ion/trunk/vhdl
40 pre-generated 'hello' demo updated ja_rd 4912d 09h /ion/trunk/vhdl
37 functions added to package for standard address decoding ja_rd 4912d 09h /ion/trunk/vhdl
36 pre-generated simulation test bench TB1 updated
for compatibility to other changes
ja_rd 4912d 09h /ion/trunk/vhdl
35 CPU mem_wait logic updated to work with cache ja_rd 4912d 09h /ion/trunk/vhdl
30 Completed decoding of instructions
(to prevent side effects of invalid opcodes)
ja_rd 4914d 06h /ion/trunk/vhdl
28 Core updated:
supports CP0 cause register and traps in delay slots
traps abort next instruction in all cases (incl. jumps/L*/S*)
ja_rd 4914d 07h /ion/trunk/vhdl

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