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[/] [ion/] [trunk/] [vhdl] - Rev 251

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Rev Log message Author Age Path
251 Extracted COP0 logic to separate module within CPU.
Preliminary step for COP0 refactor.
No change in functionality.		 ja_rd 3834d 09h /ion/trunk/vhdl
250 Precompiled demo object code package is now the bootloader and not the Hello World demo. ja_rd 4259d 13h /ion/trunk/vhdl
242 BUG FIX:
The CPU was sometimes fetching a spurious opcode in the 1st cycle after a reset.
The cache now has a 'cache_ready' output which the CPU uses to know when NOT to update its IR.		 ja_rd 4259d 15h /ion/trunk/vhdl
241 Updated simulation and synthesis object code packages with latest build of 'hello' minidemo. ja_rd 4259d 15h /ion/trunk/vhdl
240 Added a few comments and minor changes to the DE-1 top entity. ja_rd 4259d 15h /ion/trunk/vhdl
237 Fixed test bench to work with latest modifications of SoC ja_rd 4259d 19h /ion/trunk/vhdl
235 Fixed comments in cache module ja_rd 4260d 15h /ion/trunk/vhdl
234 Added a few GPIO registers to the SoC, updated the DE-1 'top' file to drive the SD interface with the GPIO signals. ja_rd 4260d 15h /ion/trunk/vhdl
233 Fixed top entity for De-1 demos: Bootstrap BRAM size is now taken from a constant in the obj code package. ja_rd 4279d 03h /ion/trunk/vhdl
227 Removed modules no longer used:
code_rom_pkg replaced by new package in SoC directory.
RS232 sub-modules replaced by new UART		 ja_rd 4407d 21h /ion/trunk/vhdl
226 Updated demo and test bench to use new SoC entity. ja_rd 4407d 21h /ion/trunk/vhdl
225 Added utility functions for the initialization of BRAM memories. ja_rd 4407d 21h /ion/trunk/vhdl
224 MCU entity gutted and transformed into a SoC entity
Different UART, new generics...		 ja_rd 4407d 21h /ion/trunk/vhdl
223 MCU entity renamed to SoC, moved to separate SoC directory ja_rd 4407d 21h /ion/trunk/vhdl
218 UART bug fix: rx_rdy flag must be clear only when reading the rx buffer ja_rd 4411d 20h /ion/trunk/vhdl
217 Removed another SoC file prematurely committed ja_rd 4418d 11h /ion/trunk/vhdl
216 First draft of SoC removed.
I'll rename it from mips_mcu in order to keep the svn log.		 ja_rd 4418d 11h /ion/trunk/vhdl
215 First draft of MIPS SoC
Still unused by any of the code samples.
Eventually will replace the mips_mcu entity		 ja_rd 4418d 11h /ion/trunk/vhdl
214 Updated pre-generated 'Hello' demo, recompiled and retested with the latest changes. ja_rd 4418d 19h /ion/trunk/vhdl
212 BUG FIX: sequences of back-to-back I/O reads or writes didn't work.
The stall conditions were wrong for those cases.
Minor cleanup of the comments		 ja_rd 4418d 19h /ion/trunk/vhdl

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