They are clearly able to emulate the games based on the PS1 and PS2 games being available on the digital storefront.
Edit: Thank you all for the informative replies.
In: Technology
Surely the PS4/PS5 dont use the exact same cpu/instruction set/gfx hardware as the PS1/PS2??? (Would reaaaally suck if they did!)
AFAIK the ps2 could only play PS1 games because its I/O chip was the same as what the ps1 used as a main cpu, the cpu of the ps2 bring the Emotion engine (EE). The ps1/ps2 games would be calling instructions that the later consoles wouldn’t understand to execute. Emulation is just that…..done via software.
otherwise, Its like putting an NES cart into a SNES and expecting it to work. Completely impossible.
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