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UserspaceEmulator: Make it possible to wrap PODs in ValueWithShadow

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Instead of making it hold the shadow data as another `T`, make it hold
the data as a byte array, and allow it to read the byte array as `T`.
This makes it much easier to make a "read_typed" function in the MMU.
This commit is contained in:
Ali Mohammad Pur 2022-02-27 23:56:46 +03:30 • committed by Andreas Kling
parent e08cf8f554
commit f6e82a8e0a
7 changed files with 115 additions and 101 deletions
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6
Userland/DevTools/UserspaceEmulator/SoftCPU.h
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@ -176,21 +176,21 @@ public:
{
if (a32)
return esi();
return { si().value(), (u32)si().shadow() & 0xffff };
return { si().value(), (u32)si().shadow_as_value() & 0xffff };
}
ValueWithShadow<u32> destination_index(bool a32) const
{
if (a32)
return edi();
return { di().value(), (u32)di().shadow() & 0xffff };
return { di().value(), (u32)di().shadow_as_value() & 0xffff };
}
ValueWithShadow<u32> loop_index(bool a32) const
{
if (a32)
return ecx();
return { cx().value(), (u32)cx().shadow() & 0xffff };
return { cx().value(), (u32)cx().shadow_as_value() & 0xffff };
}
bool decrement_loop_index(bool a32)