Code: Select all
INKEY LDA $FF03
BPL ROMKEY
CLRA
RTS
ROMKEY JMP $BBE5
Search found 1474 matches
- Sat Sep 20, 2014 11:17 am
- Forum: Hints and Tips
- Topic: Mixing two different graphic modes
- Replies: 52
- Views: 37744
Re: Mixing two different graphic modes
You could try reading the keyboard via a sub which avoids calling the keyboard routine when the flag is set. This method should (in theory) prevent the flickering under real hardware.
- Sat Sep 20, 2014 9:23 am
- Forum: Hints and Tips
- Topic: Mixing two different graphic modes
- Replies: 52
- Views: 37744
Re: Mixing two different graphic modes
I think the only way to avoid flicker is to call the keyboard routine from the ISR.pser1 wrote: The ml program will be inquirig keyboard internally via [$8006], I hope that this will not afffect the IRQ-handler.
- Fri Sep 19, 2014 11:40 pm
- Forum: Hints and Tips
- Topic: Mixing two different graphic modes
- Replies: 52
- Views: 37744
Re: Mixing two different graphic modes
You could call the keyboard routine from your ISR. Try the attached updated demo (Encoder 09 source) code.pser1 wrote:don't know if it could be solved in any way
Load ZIRQ2, then test with the following BASIC example code.
Code: Select all
10 PMODE3,1:PCLS
20 POKE255,ASC("S"):EXEC
30 CIRCLE(128,96),90,2
40 GOTO 20
- Fri Sep 19, 2014 6:17 pm
- Forum: Hints and Tips
- Topic: Mixing two different graphic modes
- Replies: 52
- Views: 37744
Re: Mixing two different graphic modes
Code: Select all
CHGVEC STX $010D * set IRQ dispatch routine
ANDCC #$AF * enable IRQ/FIRQ interrupts
RTS * return to caller
- Fri Sep 19, 2014 12:14 am
- Forum: Hints and Tips
- Topic: Mixing two different graphic modes
- Replies: 52
- Views: 37744
Re: Mixing two different graphic modes
Hello, I know that a few of you have got to show in the screen a part in a PMODE and the rest in another resolution ... I am interested in having the upper 3/4 of the screen devoted to PMODE3 or maybe SG24 (144 pixels high) and the rest (48 pixels high) for PMODE4 To make things easier, this propor...
Re: "Pixie!"
I have patched the boot code to make it work with all currently available DragonDOS compatible ROMs (excluding DOSPlus 4.8 which fails to boot ANY DragonDOS bootable disk).sixxie wrote:oh yes, in case anyone else hits this, you also need to be using the DragonDOS 1.0 ROM to BOOT this!
- Fri Sep 12, 2014 12:16 pm
- Forum: Dragon General
- Topic: Autoboot file
- Replies: 11
- Views: 8348
Re: Autoboot file
Version 1.1 boot code is shorter and works with all currently available DragonDOS compatible ROMs (excluding DOSPlus 4.8 which fails to boot ANY DragonDOS bootable disk). 10 ' DRAGONDOS AUTOBOOT V1.1 20 ' BY STEVE EVANS (ZEPHYR) 30 ' 12TH SEPTEMBER, 2014 40 ' 50 FOR I=&H200 TO &H239:READ A$:X=VAL("&...
- Mon Sep 08, 2014 11:00 pm
- Forum: Dragon General
- Topic: Autoboot file
- Replies: 11
- Views: 8348
Re: Autoboot file
It is possible to do this by writing a small machine code routine (boot code) to a freshly formatted floppy disk. Try the attached program and demo disk. EDIT: Version 1.0 code deleted. To make your own autoboot disks: (1) Load the "DOSABOOT" program from cassette or floppy disk. (2) Insert a floppy...
- Sun Sep 07, 2014 11:32 am
- Forum: Uploads
- Topic: Interrupt driven real-time-clock
- Replies: 11
- Views: 7464
Re: Interrupt driven real-time-clock
Is this a reply to jedie or myself? My answer would be yes.sixxie wrote:You ok with me posting a disassembly?
- Sun Sep 07, 2014 1:05 am
- Forum: Uploads
- Topic: Interrupt driven real-time-clock
- Replies: 11
- Views: 7464
Re: Interrupt driven real-time-clock
jedie wrote:Can you post the assembly code from this?
The original source code for this routine has been deleted.