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[/] [potato/] [trunk/] [src/] [pp_execute.vhd] - Rev 58

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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 3250d 08h /potato/trunk/src/pp_execute.vhd
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 3282d 03h /potato/trunk/src/pp_execute.vhd
35 Prevent jumping/branching when stalling skordal 3282d 05h /potato/trunk/src/pp_execute.vhd
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 3296d 07h /potato/trunk/src/pp_execute.vhd
18 instr_misalign_check: add do_jump to sensitivity list skordal 3301d 02h /potato/trunk/src/pp_execute.vhd
17 Improve detection of unaligned instructions skordal 3305d 09h /potato/trunk/src/pp_execute.vhd
3 Fix bug reporting URL skordal 3326d 12h /potato/trunk/src/pp_execute.vhd
2 Initial commit skordal 3326d 14h /potato/trunk/src/pp_execute.vhd

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