How Naughty Dog Fit Crash Bandicoot into 2MB of RAM on the PS1

Re:How Naughty Dog Fit Crash Bandicoot into 2MB of RAM on th... by vetinari on Thursday June 18, 2015 @12:32PM (#9739738)

One icon in Win95 had 512 bytes (32x32, 16 color, 4 bitplanes). One icon in Android has 256 kB (256x256, true color). The 800x600, 16-bit hicolor (that's what I used at the time) framebuffer had a bit under 940 kB. The 1920x1200 truecolor has 8,8 MB, not counting the texture backing stores used by modern display servers.

The amount of RAM needed has to do with assets used by the code, not the code itself. The code itself is miniscule.

And no, Android phones do not have 4 GB RAM. Low end has 512 MB, with many phones in 1-1,5 GB range and the 2015 flagships have 3 GB. (Nexus 5 a 7 have 2 GB. Nexus 6 has 3 GB). All that without swap (where would you like to swap? To flash?). While most modern 32-bit ARM CPUs do come with LPAE, Android does not support that, so going above 4 GB will have to wait for ARMv8.

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Re:How Naughty Dog Fit Crash Bandicoot into 2MB of RAM on th... by vardump on Thursday June 18, 2015 @06:55PM (#9742086)

Android doesn't support LPAE? That's pretty surprising, any sources about that? LPAE doesn't need any usermode support to function. What specifically does Android do to prevent using LPAE in underlying Linux kernel?

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Re:How Naughty Dog Fit Crash Bandicoot into 2MB of RAM on th... by vetinari on Friday June 19, 2015 @06:53AM (#9743964)

Well, one thing is what Linux kernel supports by itself, other is, what does the board support package for your chipset. So maybe there is LPAE Android device somewhere, where the SoC provider did bother, but in general, nobody does.

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Re:How Naughty Dog Fit Crash Bandicoot into 2MB of RAM on th... by rosege on Friday June 19, 2015 @12:48AM (#9743060)

my android phone does :-) asus ze551ml

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Re:How Naughty Dog Fit Crash Bandicoot into 2MB of RAM on th... by vetinari on Friday June 19, 2015 @06:55AM (#9743971)

You phone is also Intel based, not ARM. That opens another question - would Intel be able to make phone SOCs, if Android SDK would compile to native ARM code, as some advocates prefer?

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