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Rev Log message Author Age Path
63 Upgrade makefiles for use with the upgraded toolchain skordal 3286d 05h /potato/trunk/
62 Add a couple of missing signals to a sensitivity list skordal 3314d 06h /potato/trunk/
61 Add 7-segment display controller to the Potato SoC skordal 3315d 10h /potato/trunk/
60 Remove out-of-date comment skordal 3329d 02h /potato/trunk/
58 Merge branch new-privileged-isa (r48-r57) into trunk

This adds support for the newly published supervisor extensions
version 1.7. In addition, a processor datasheet has been added
and the timer_clk signal has been properly connected in the
example design and the SoC testbench.
skordal 3349d 06h /potato/trunk/
45 Merge branch cache-playground (r23-r30 and r34-r44) into trunk

This primarily adds the following features the the processor:
- A direct-mapped instruction cache with configurable cache line width and
number of cache lines.
- Various bug fixes for bugs that appeared when the processor could run
instructions at full speed but had to stall for data.
- A "Hello World" test application.
skordal 3381d 01h /potato/trunk/
36 Ensure correct read of CSR after stall skordal 3381d 03h /potato/trunk/
35 Prevent jumping/branching when stalling skordal 3381d 03h /potato/trunk/
34 Prevent flushing the pipeline if it is stalling skordal 3381d 03h /potato/trunk/
28 Add rudimentary User's manual skordal 3395d 00h /potato/trunk/
26 Prevent exceptions from being taken while stalling

Jumping to an exception handler while stalling and waiting for a load/store
instruction to finish can cause undefined results from the load/store
instruction. This actually fixes the issue mentioned in revision r20.
skordal 3395d 05h /potato/trunk/
24 Remove unused STRINGIFY macros skordal 3397d 23h /potato/trunk/
22 Fix the potato_get_badvaddr() macro skordal 3397d 23h /potato/trunk/
21 Upgrade the example design to use a 60 MHz system clock skordal 3397d 23h /potato/trunk/
20 Fix SHA256 benchmark crash by storing all registers on exception handler entry

This problem will disappear when the processor is updated to conform to the
new supervisor specification, which will allow us to use a compiler that
conforms to the new "official" ABI.
skordal 3397d 23h /potato/trunk/
19 SHA256 benchmark: allow compiler to inline at will skordal 3397d 23h /potato/trunk/
18 instr_misalign_check: add do_jump to sensitivity list skordal 3399d 23h /potato/trunk/
17 Improve detection of unaligned instructions skordal 3404d 06h /potato/trunk/
16 Correct grammar in source code comment skordal 3404d 06h /potato/trunk/
15 SHA256 benchmark: fix Makefile syntax error skordal 3410d 23h /potato/trunk/

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