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Results tagged with backward-compatibility
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user 6659
For questions concerning the compatibility of newer systems with the earlier systems that came before them.
30
votes
Why did the Z80 break 8080 compatibility?
Would providing full 8080 compatibility have interfered with or made more complicated implementing new features the Z80 designers wanted?
It would have made it impossible. Any extension adding funct …
- 236k
21
votes
How much PlayStation 1 hardware in the PS2?
Calling it an emulation might be selling it under value. There is way more upward compatibility included than just software.
Essentially the PS2 contains a full PS1 subsystem sans the GPU. It might be …
- 236k
1
vote
Why did some BIOSes have the timer tick wrap around at 1800B1h instead of at 1800B0h?
Maybe some points to considere:
Was this a wide-spread phenomena for which one should take precautions when creating algorithms that convert the tick count into the corresponding time, so as to avoid …
- 236k
2
votes
Why did the PlayStation 2 implement backward compatibility that way?
But the chosen method is actually rather extraordinary when you stop and think about it.
But neither new or unheard of. The 1986 Apple IIgs, 8 years before even the PS1, already included a single ch …
- 236k