Denial

I've always wondered how much work it takes to rewrite a cartridge game to run elsewhere. All the absolute references should be fairly easy to fix, but more tricky code getting high and low bytes from a table etc may be a tricky thing to solve. Some day I'll get some 8K image, preferrably one that ...

Thus, I assume POKE 37166,0 will not do anything at all? I wonder which of the seven interrupts really is the magic one for Pole Position. True. It does nothing. ?PEEK(37166) 192 192 (=$c0) Only one enabled, which is bit 6, timer 1 timeout. (MSB is the global enable bit) This is the 60Hz jiffy IRQ ...

POKE37166,PEEK(37166)AND127 is probably better written as: POKE37166,127 37166 is the Interrupt enable register of VIA2. MSB (bit 7) selects if bits shall be cleared or set. bits 6-0 selects which bits to affect. The difference between the above is subtle... The former disables all interrupts that ...

I've always wondered how much work it takes to rewrite a cartridge game to run elsewhere. All the absolute references should be fairly easy to fix, but more tricky code getting high and low bytes from a table etc may be a tricky thing to solve. Some day I'll get some 8K image, preferrably one that ...

no nothing to do with the raster just the IRQ being 60 times a second on both machines if it were the same speed then the jiffy clock would operate at the same speed too, right? Yes, the jiffyclock is run by the interrupt. I'm not 100% sure the default IRQ speed is 60Hz on both PAL and NTSC though....

carlsson wrote:Single line version: OPEN 1,8,15,"C0:OUTPUT,P=INPUT,S"

Really nice tip there! I never saw any real use for the DOS copy stuff on single drives, but here it is perfect. Should be alot faster aswell, and it will not block the computer while doing it!

/Daniel

i'm starting to map out how i want my music tracker to work and was wondering if there was any difference in the speed of the IRQ between NTSC and PAL vics.... i figure not but could be wrong I think it is the same speed in basic, but the timer values are different between PAL and NTSC vic-20s beca...

Don't use T-Röd (or any denaturated ethanol) it will leave a small white residue (from the denaturation) when dried up. Even if you wipe it off with a clean cotton top right afterwards? That's what I do... /Anders That probably gets rid of most of the residue but isoprophanol works better, is reson...

I don't know if pure ethanol will have other attributes than the 2-propanol when it comes to cleaning magnetic heads, but Kemetyl T-Röd consists of 95% denaturated ethanol and thus is prevented from consumption. Don't use T-Röd (or any denaturated ethanol) it will leave a small white residue (from ...

Hey, I just saw this thread... As always, it's nice that people make software, especially music software! I'm looking forward to trying it out. If speed is not a major problem, just use... lda #msb ldx #lsb jsr $ddcd ... which will print the number in decimal using basic. (in 7 bytes flat. 8) ) Like...

http://www.kahlin.net/daniel/victracker/victracker.jpg Hi, Ten years has passed since the first 0.6 revision of VIC-TRACKER, and now the much anticipated VIC-TRACKER 2.0 is released! Version 2.0 adds loads of new features and improvements over the previous 1.0 and 0.6 versions! http://www.kahlin.ne...