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[/] [ion/] - Rev 252

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Rev Log message Author Age Path
252 Extracted COP0 logic to separate module within CPU.
No change in functionality.		 ja_rd 3942d 03h /ion
251 Extracted COP0 logic to separate module within CPU.
Preliminary step for COP0 refactor.
No change in functionality.		 ja_rd 3942d 17h /ion
250 Precompiled demo object code package is now the bootloader and not the Hello World demo. ja_rd 4367d 21h /ion
249 Cleaned up bootloader. ja_rd 4367d 21h /ion
248 Fixed silly typo in sd bootloader. ja_rd 4367d 22h /ion
247 Added a precompiled binary of 'Adventure' ready to be bootloaded from an SD card. ja_rd 4367d 22h /ion
246 Added a SD-card bootloader demo.
Now we can load binaries from the DE-1 board SD interface.
This saves time because we no longer have to resynthesize the core to try new software. AND we can now run from 16-bit RAM, which should be faster than 8-bit flash...		 ja_rd 4367d 22h /ion
245 Modified 'Adventure' demo: added a make target to build a 'bootloadable' version of the binary.
The new binary ('code.bin') can be loaded and run from RAM at address 0x0 using the sdboot demo bootloader.		 ja_rd 4367d 22h /ion
244 New link script that puts everything on XRAM (16-bit SRAM on the DE-1 board).
Programs linked with this script will have to be 'bootloaded' on RAM.		 ja_rd 4367d 22h /ion
243 Added a port of ElmChan's FatFS library for the DE-1 board.
Uses bit-banged SPI interface so it should be trivially easy to port to other boards.		 ja_rd 4367d 22h /ion
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 4367d 23h /ion
241 Updated simulation and synthesis object code packages with latest build of 'hello' minidemo. ja_rd 4367d 23h /ion
240 Added a few comments and minor changes to the DE-1 top entity. ja_rd 4367d 23h /ion
239 Fixed simulation script: the test bench does not need to use the obj code package, all it needs is in the simulation parameters package, including the code. ja_rd 4367d 23h /ion
238 BUG FIX: C startup code that copied initialized data to data section was wrong when initialized data was not a multiple of 4 bytes. ja_rd 4368d 03h /ion
237 Fixed test bench to work with latest modifications of SoC ja_rd 4368d 03h /ion
236 Added macros to SoC header file for easy access to GPIO registers ja_rd 4369d 00h /ion
235 Fixed comments in cache module ja_rd 4369d 00h /ion
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 4369d 00h /ion
233 Fixed top entity for De-1 demos: Bootstrap BRAM size is now taken from a constant in the obj code package. ja_rd 4387d 12h /ion

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