[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 #42 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
https://git.libre-soc.org/?p=soc.git;a=blob;f=src/soc/decoder/isa/radixmmu.py;h=d7035031e6d9fb86f0fb06a0a52708018e84d29a;hb=cc3b648ccb01f03711e16a80959efb8ee09f171e#l700

tobias you altered the size of pgbase from microwatt's 56 bits, extending it to
64 bits.

this is 100% guaranteed to cause damage (data corruption)

MSB0 is a bloody nuisance: note in the line above how the bits are selected?
this works *****ONLY***** if the length of pgbase is exactly 56.

it is critically important not to alter the size of ANY variable, here.

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