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0 pointsmabster7mo ago0 comments

My favourite were older embedded systems where 0 was an address you actually do interact with. So for some portion of the code you WANT null pointer access. I can't remember the details but I do remember jumping to null to reset the system being pretty common.

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marshray7mo ago

Probably the system interrupt table. Index 0 might reference the handler for the non-maskable interrupt NMI, often the same as a power-on reset.

I recall that on DOS, Borland Turbo C would detect writes to address 0 and print a message during normal program exit.

ghurtado7mo ago

RANDOMIZE USR 0

j / k navigate · click thread line to collapse

0 pointsmabster7mo ago0 comments

0 comments

marshray7mo ago

Probably the system interrupt table. Index 0 might reference the handler for the non-maskable interrupt NMI, often the same as a power-on reset.

I recall that on DOS, Borland Turbo C would detect writes to address 0 and print a message during normal program exit.

ghurtado7mo ago

RANDOMIZE USR 0

j / k navigate · click thread line to collapse