Maximum .PRG file size error

zlelik 11 days ago

I am trying to recompile one Application from github from one watch model to another. When I build it I get this error

ERROR: PRG generated exceeds the memory limit of app type 'watch-app' for device id 'instinct2x': 218282 bytes.

What does it exactly mean? Is it max file size of prg file 218282 bytes or it is bigger than maximum allowed by 218282 bytes or what?

When I build it I get 363980 bytes prg file.

Can I find somewhere the list of max oprg files for each watch?

Also, how can I decrease the size of prg file? Maybe change SDK version or some compiler option?

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jim_m_58 11 days ago in reply to FlowState +2

Not true for a debug build, where the debug info doesn't get loaded. If you look at the prg in bin, that's a debug build, it's much larger than a release build due to all the debug info

With…
FlowState 18 hours ago in reply to zlelik +2

Yeah maybe if it was an Apple Watch, but Garmins are seriously underpowered due to battery life (and cost?) concerns.

I mean Garmin native code is already slow (just look at the UI of Garmin watches) and…
FlowState 11 days ago in reply to zlelik +1

zlelik said:
the whole prg file must be loaded into memory?

Yes, the whole PRG file (except for resources) has to be loaded into app memory. Resources are at the end, so they can be excluded (and loaded…

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FlowState 18 hours ago in reply to zlelik

Yeah maybe if it was an Apple Watch, but Garmins are seriously underpowered due to battery life (and cost?) concerns.

I mean Garmin native code is already slow (just look at the UI of Garmin watches) and Garmin CIQ code is already running in a VM (everyone knows CIQ apps are slower and more battery-hungry than the equivalent native functionality), so it's hard to imagine any kind of emulator running at a decent speed.

Still, it was a pretty interesting exercise to optimize the code to get it to actually run on an instinct2x. Too bad it's not playable.