[BBC-Micro] JSBeeb

Mark Ashley mark at ibiblio.org
Sun May 18 14:45:15 BST 2014


Since the key mapping appears to be physical, it should be the same on all
laptop/usb keyboards. All the Beeb emulators would be using the same
keycodes.

The image here:
http://wallmobi.net/uploads/pictures/technology/36678-bbc-micro-model-b.jpg
has the '-' and the '=' key being the same key. Just next to the 'zero'.

The mapping from the BeebEm program in userkybd.cpp (full table is at the
bottom) has that -/= key being '1,7', in jsbeeb the notation is the reverse
of that so we're looking for 7,1 in the
https://github.com/mattgodbolt/jsbeeb/blob/master/via.js file:

  Line 391:      map('\xbd', 7, 1); // '_' / '=' mapped to underscore

so that underscore mapping appears to be wrong? It should be minus and
equals. It's a moot point anyway as it's (apparently) not triggering an
event and inserting a key, nothing happens on screen when you press it!

To debug it you'd need to download the git code and run it on a port per
the instructions. Then do mapping debug prints to show what row/col/assumed
key was pressed. I'm tired and drunk right now so better to CC Matt himself
on this and ask what's happening :) All yours, Matt.

Whilst on the topic, the mapping for the \ and | key is always giving a @,
for unshifted and shifted.

ta,
Mark.



Beebem keymapping table:

Download at: http://beebem-unix.bbcmicro.com/download.html
File beebem-0.0.13.tar.gz --> userkybd.cpp

// Row,Col  Default values set to transTable1
//--int UserKeymap[256][2]={
//--    0,0,    0,0,    0,0,    0,0,   // 0
//--    0,0,    0,0,    0,0,    0,0,   // 4
//--    5,9,    6,0,    0,0,    0,0,   // 8 [BS][TAB]..
//--    0,0,    4,9,    0,0,    0,0,   // 12 .RET..
//--    0,0,    0,1,    0,0,    -2,-2, // 16 .CTRL.BREAK
//--    4,0,    0,0,    0,0,    0,0,   // 20 CAPS...
//--    0,0,    0,0,    0,0,    7,0,   // 24 ...ESC
//--    0,0,    0,0,    0,0,    0,0,   // 28
//--    6,2,    0,0,    0,0,    6,9,   // 32 SPACE..[End]
//--    0,0,    1,9,    3,9,    7,9,   // 36 .[Left][Up][Right]
//--    2,9,    0,0,    0,0,    -3,-3,   // 40 [Down]...
//--    0,0,    0,0,    5,9,    0,0,   // 44 ..[DEL].
//--    2,7,    3,0,    3,1,    1,1,   // 48 0123
//--    1,2,    1,3,    3,4,    2,4,   // 52 4567
//--    1,5,    2,6,    0,0,    0,0,   // 56 89
//--    0,0,    0,0,    0,0,    0,0,   // 60
//--    0,0,    4,1,    6,4,    5,2,   // 64.. ABC
//--    3,2,    2,2,    4,3,    5,3,   // 68  DEFG
//--    5,4,    2,5,    4,5,    4,6,   // 72  HIJK
//--    5,6,    6,5,    5,5,    3,6,   // 76  LMNO
//--    3,7,    1,0,    3,3,    5,1,   // 80  PQRS
//--    2,3,    3,5,    6,3,    2,1,   // 84  TUVW
//--    4,2,    4,4,    6,1,    0,0,   // 88  XYZ
//--    0,0,    6,2,    0,0,    0,0,   // 92  . SPACE ..
//--    0,0,    0,0,    0,0,    0,0,   // 96
//--    0,0,    0,0,    0,0,    0,0,   // 100
//--    0,0,    0,0,    0,0,    -4,0,  // 104 Keypad+
//--    0,0,    -4,1,    0,0,    0,0,   // 108 Keypad-
//--    7,1,    7,2,    7,3,    1,4,   // 112 F1 F2 F3 F4
//--    7,4,    7,5,    1,6,    7,6,   // 116 F5 F6 F7 F8
//--    7,7,    2,0,    2,0,    -2,-2, // 120 F9 F10 F11 F12
//--    0,0,    0,0,    0,0,    0,0,   // 124
//--    0,0,    0,0,    0,0,    0,0,   // 128
//--    0,0,    0,0,    0,0,    0,0,   // 132
//--    0,0,    0,0,    0,0,    0,0,   // 136
//--    0,0,    0,0,    0,0,    0,0,   // 140
//--    0,0,    0,0,    0,0,    0,0,   // 144
//--    0,0,    0,0,    0,0,    0,0,   // 148
//--    0,0,    0,0,    0,0,    0,0,   // 152
//--    0,0,    0,0,    0,0,    0,0,   // 156
//--    0,0,    0,0,    0,0,    0,0,   // 160
//--    0,0,    0,0,    0,0,    0,0,   // 164
//--    0,0,    0,0,    0,0,    0,0,   // 168
//--    0,0,    0,0,    0,0,    0,0,   // 172
//--    0,0,    0,0,    0,0,    0,0,   // 176
//--    0,0,    0,0,    0,0,    0,0,   // 180
//--    0,0,    0,0,    5,7,    1,8,   // 184  ..;=
//--    6,6,    1,7,    6,7,    6,8,   // 188  ,-./
//--    4,8,    0,0,    0,0,    0,0,   // 192  @ ...
//--    0,0,    0,0,    0,0,    0,0,   // 196
//--    0,0,    0,0,    0,0,    0,0,   // 200
//--    0,0,    0,0,    0,0,    0,0,   // 204
//--    0,0,    0,0,    0,0,    0,0,   // 208
//--    0,0,    0,0,    0,0,    0,0,   // 212
//--    0,0,    0,0,    0,0,    3,8,   // 216 ...[
//--    7,8,    5,8,    2,8,    4,7,   // 220 \]#`
//--    0,0,    0,0,    0,0,    0,0,   // 224
//--    0,0,    0,0,    0,0,    0,0,   // 228
//--    0,0,    0,0,    0,0,    0,0,   // 232
//--    0,0,    0,0,    0,0,    0,0,
//--    0,0,    0,0,    0,0,    0,0,
//--    0,0,    0,0,    0,0,    0,0,
//--    0,0,    0,0,    0,0,    0,0,
//--    0,0,    0,0,    0,0,    0,0
//--};


On Sun, May 18, 2014 at 7:13 PM, Alan Williams <ajw at bigblue.net.au> wrote:

> Has anybody found the minus key on a US ascii keyboard?
> Alan
>
>
> -----Original Message-----
> From: bbc-micro-bounces+ajw=bigblue.net.au at lists.cloud9.co.uk
> [mailto:bbc-micro-bounces+ajw=bigblue.net.au at lists.cloud9.co.uk] On Behalf
> Of John Kortink
> Sent: Friday, 16 May 2014 6:34 AM
> To: bbc-micro at lists.cloud9.co.uk
> Subject: Re: [BBC-Micro] JSBeeb
>
>
> On Thu, 15 May 2014 20:36:01 +0100, Jason Flynn G7OCD <flynnjs at yahoo.com>
> wrote:
>
> >On 15/05/2014 14:31, John Kortink wrote:
> >> I stumbled on this a while back. It's quite amazing how you can do
> >> this nowadays in a mere script language, and still get the required
> >> speed.
> >
> >What amazes me more is:
> >http://s-macke.github.io/jor1k/
>
> Yikes.
>
> As a machine, it's a little short on memory and clock speed though. ;-)
>
>
> John Kortink
>
> --
>
> Email    : kortink at inter.nl.net
> Homepage : http://www.inter.nl.net/users/J.Kortink
>
> GoSDC, the ultimate BBC B/Master/Electron storage system :
> http://web.inter.nl.net/users/J.Kortink/home/hardware/gosdc
>
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