(HP50g) HpPascal and contrast of the screen

[DavidM]

It seems that there is some interest, Gilles.

The sample that you provided in your first post translated reasonably well with google translate -- it clobbered the LA command as might be expected, but was quite clear for most things.

Would you be able to post another example of an asm function that returns a BYTE value instead of boolean? That would help clarify that the data format is as expected, and should be a reasonable template for setting up your GetContrast command.