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hyperhello 4 hours ago

I know compilers have advanced, but I was wondering about a runtime debug check.

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chuckadams 4 hours ago | parent [-]

A sanitizer is that runtime debug check. The compiler just inserts those checks.

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hyperhello 4 hours ago | parent [-]

Okay. Then I have to assume that they didn't do it for SimCity! Thanks.

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chuckadams 4 hours ago | parent [-]

Sanitizers come with a lot of overhead, and the tech wasn't readily available in SimCity's day, certainly not for Windows 95.

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hyperhello 4 hours ago | parent [-]

I was imagining more like some kind of primitive CPU mode that sends every single RAM request to a software exception. Something you would normally have turned off but available for truly heavy duty debugging.

	▲	chuckadams 3 hours ago \| parent \| next [-]
		That sounds pretty similar to what Valgrind does, basically runs your program in a VM with that kind of instrumentation. The details of how it works are way past the boundaries of my own knowledge though :)
	▲	jeffbee 5 minutes ago \| parent \| prev \| next [-]
		The operating system could effect this by not providing any page tables to the CPU, so every memory reference faults and the OS has to handle them all.
	▲	3 hours ago \| parent \| prev [-]
		[deleted]