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In the XRoar sources I found these font files: font-6847.png https://raw.githubusercontent.com/jedie/XRoar/master/src/font-6847.png https://github.com/jedie/XRoar/blob/master/src/font-6847.png font-6847t1.png https://raw.githubusercontent.com/jedie/XRoar/master/src/font-6847t1.png https://github.com...

jedie wrote:But there is a problem: scrolling doesn't work right. It moves only every second char one line above
EDIT: Ah! I have mapped "read/write word" to "read/write byte"

Yes, it was my mistake that i don't split byte/word in periphery probably

I also copy the page https://www.mediawiki.org/w/index.php?title=Help:Images to http://archive.worldofdragon.org/index. ... elp:Images

There is the Dragon keyboard matrix: | PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 ----|---------------------------------------------- PA0 | 0 1 2 3 4 5 6 7 PA1 | 8 9 * ; , - . / PA2 | @ A B C D E F G PA3 | H I J K L M N O PA4 | P Q R S T U V W PA5 | X Y Z Up Down Left Right Space PA6 | ENT CLR BRK N/C N/C N/C...

Now after the keyboard matrix / PIA stuff works, i have implemented a simple Text Mode display with "PyGame"... So Dragon 32 / 64 Text mode is now a little bit useable: http://www.jensdiemer.de/static/jensdiemer.de/screenshots/DragonPy_DragonROM_01.png You can input something and run. You see the cu...

Seems that i'm on the right way: New test input char: 'P' bbf4| read $ff00 ($ff02 is $00 00000000) send $2f 00101111 back (char: P) bbcd| read $ff00 ($ff02 is $ff 11111111) send $ff 11111111 back (char: P) bc08| Set keyboard matrix state $0151 to $af 10101111 bbcd| read $ff00 ($ff02 is $fe 11111110)...

TODO: I should display the value of $151, too

Thank you very mutch. Think i now understand it right

One missing part in my Dragon Emulator is the Input via emulated PIA and the Keyboard Matrix... "Inside the Dragon" described on Page 198-204 all the basics. I have read it carefully, but didn't understand it completely :oops: I missed a complete, detailed example. I have study the XRoar sources, bu...

I created a simple BASIC programm to see the Keyboard matrix state. Sources: https://github.com/jedie/PyDragon32/blob/master/InputOutput/keyboard.bas Example screenshow with the "Y" key is pressed down. You see that this is saved in $0153: http://www.jensdiemer.de/static/jensdiemer.de/screenshots/ke...