[Libre-soc-bugs] [Bug 604] ISACaller simulator needs RADIX MMU support

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=604

--- Comment #30 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
tobias the simulator and TestIssuer memory access is split between instruction
and data.  these paths DO NOT MEET at a common point (common memory) they are
COMPLETELY SEPARATE.

all unit tests involving memory will read instructions starting from 0x0000.

all such tests if writing to 0x0000 *DO NOT* overwrite the instructions because
the PATHS ARE COMPLETELY SEPARATE.

this has greatly simplified the test infrastructure.

to test mmu-enabled data load/store it will be necessary to DISABLE virtual
memory on instruction load, in both ISACaller and TestIssuer.

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