Re: [hatari-devel] Keyboard mappings?

[Thomas Huth <th.huth@xxxxxx>]

On 02.11.2016 00:43, Eero Tamminen wrote:
> Hi,
> 
> On 11/01/2016 11:13 PM, Thomas Huth wrote:
>> I think there is/was a reason for mapping PAGEUP to 0x63 and PAGEDOWN to
>> 0x64 ... if you have a closer look at the Atari keyboard, there are
>> four keys that can not be found on a normal PC keyboard: HELP, UNDO,
>> KP-"(" and KP-")". So on a PC keyboard, they should be mapped to keys
>> that can not be found on a normal Atari keyboard - SCROLLOCK, PRINT,
>> PAGEUP and PAGEDOWN.
>>
>> The symbolic mapping uses:
>>
>>  SCROLLOCK <=> UNDO (0x61)
>>  PRINT     <=> HELP (0x62)
> 
> Thanks, I missed these.  They seem to work fine (with SDL2 build).
> 
> 
>>  PAGEUP    <=> KP-"(" (0x63)
>>  PAGEDOWN  <=> KP-")" (0x64)
>>
>> ==> If you change PAGEUP and PAGEDOWN here, you should change SCROLLOCK
>> and PRINT, too.
>>
>> The SDL1 scancode mapping uses:
>>
>>  PAGEUP     <=> HELP (0x62)
>>  PAGEDOWN   <=> UNDO (0x61)
>>
>> Scroll lock and print are mapped via scancode offset here, not sure
>> whether they end up with a sane Atari key, though...
>>
>> The SDL2 scancode mapping uses:
>>
>>  SCROLLLOCK <=> UNDO (0x61)
>>  PRINT      <=> HELP (0x62)
>>  PAGEUP     <=> HELP (0x62)
>>  PAGEDOWN   <=> UNDO (0x61)
>>
>> ==> So the keypad parentheses can not by typed at all here. We should
>> likely change SCROLLOCK and PRINT here, too.
> 
> Would you have time to fix this and update the Hatari
> manual page & manual?

I currently don't have really time, but I pushed a patch now (not very
well tested, though). Note that I've did it as described in the
manual.html, not as in the man-page: PRINT is now always mapped to HELP,
and PAGE UP/DOWN to the KP braces. I remembered that there was actually
a reason for mapping PRINT to HELP: ALT-HELP is often used to trigger a
print action in Atari programs, so the PRINT key fits better for the
HELP key.

 Thomas