Search found 311 matches

by Petari
Tue Jan 30, 2018 1:25 pm
Forum: CHAT FORUM
Topic: The Tiniest, Minimalist 68K system sort of?
Replies: 6
Views: 911

Re: The Tiniest, Minimalist 68K system sort of?

Interesting. Question is about attachable LCD panels - if that is available and cheap, could be interesting to make some stuff ...
by Petari
Tue Jan 30, 2018 8:47 am
Forum: CHAT FORUM
Topic: Lost the content of an hdd, atari compilation gone
Replies: 10
Views: 1704

Re: Lost the content of an hdd, atari compilation gone

Hard disks and newer Flash solutions like SSD, diverse cards, CD, DVD ROMs should be considered as unreliable, limited lifetime storage devices, medias. Because they are really it. I used plenty of hard disks during my computer time, since 1991. Most if it is dead now. Practically only what is barel...
by Petari
Thu Jan 18, 2018 6:57 pm
Forum: BENCHMARKS
Topic: TOS1.00 vs TOS1.04
Replies: 2
Views: 988

Re: TOS1.00 vs TOS1.04

What would be really surprising is if someone could activate blitter in TOS 1.00 :lol:
by Petari
Wed Jan 17, 2018 8:02 am
Forum: DISPLAYS & CONVERTERS
Topic: Atari ST Display Basics
Replies: 31
Views: 11700

Re: Atari ST Display Basics

It is possible that Falcon works at 60 Hz refresh rate. That is set in NV RAM. You should be able to see it in monitor's Information mode or like. Some people added resistors to RGB lines in cables for ST(R), because analog amplitudes are too high. I don't know about that Falcon perhaps gives more s...
by Petari
Sun Jan 14, 2018 1:47 pm
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 47
Views: 7607

Re: no-software internal RTC

Since RP5C15 has 6 bits for year, it means that it could count years up to 2043 - calculating by start year=1980 , and 6 bits can be 0-63 . That means that chip self is actually OK for this century too ( well, for first 43% of :D ) , but TOS handles it not properly. Probably just displaying part - b...
by Petari
Sun Jan 14, 2018 12:09 pm
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 47
Views: 7607

Re: no-software internal RTC

RTC chips, at least those old ones store not exact year value, but some number of bits for year. Similar is with TOS date format. It has 7 bits for year, and starts at 1980 - so value 0 in year field means 1980 . Some may ask: how then it's not year 2000 compliant ? I guess there are some code parts...
by Petari
Sun Jan 14, 2018 11:22 am
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 47
Views: 7607

Re: no-software internal RTC

Actually the tos supports directly at least one rtc ic, the ricoh rp5c15, it's hard to find and you have to develop a board, but all you need to use it is atari's control panel. I made it in past. After project in ST Magazine - if I remember correct. No board developing, just on prototype board. It...
by Petari
Sun Jan 14, 2018 7:55 am
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 47
Views: 7607

Re: no-software internal RTC

Well, talking about what would be simpler: 1: Modding TOS, so no need for additional SW - in case of using some dedicated RTC chip. 2: Adding battery + couple cheap parts to ensure power of IKBD chip when ST is not powered on. http://atari.8bitchip.info/ikbdbatt.html And most important: none of 2 me...
by Petari
Tue Jan 09, 2018 8:43 am
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: AES 3.4 into Tos 2.06/3.06
Replies: 19
Views: 3222

Re: AES 3.4 into Tos 2.06/3.06

I just can't believe that Falcon AES can fit in TOS 2.06 space - it is 512KB vs. 256KB total ROM space. I'm afraid that there is some mistake made by someone. Probably just some parts of Falcon AES, Desktop. As Gembench says "Don't believe everything you see" :D
by Petari
Tue Jan 09, 2018 7:16 am
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: AES 3.4 into Tos 2.06/3.06
Replies: 19
Views: 3222

Re: AES 3.4 into Tos 2.06/3.06

TOS 2.06 is in 256KB space, while 3.xx and 4.xx are in 512KB. So, I don't think that Falcon AES can fit in 2.06, or better said in 256 KB. Of course, we can enlarge ROM space in ST machines, and even in STE ones, to 512KB, but that is not 'into 2.06' . And I would ask for that Falcon AES code - wher...