alucardX Posted February 16, 2022 Share Posted February 16, 2022 1 hour ago, JagChris said: It was originally designed for the Saturn and PSX back in 1996. Neither had floating point. No need to redo any math. It's been done for 26 years. But this is OpenLara, not the original code written for Saturn/PSX. 1 Quote Link to comment Share on other sites More sharing options...
JagChris Posted February 16, 2022 Share Posted February 16, 2022 29 minutes ago, alucardX said: But this is OpenLara, not the original code written for Saturn/PSX. I thought OpenLara was a reverse engineering of the original code? Either way it's also been out for 20 years for the Ngage. Another system without floating point. OpenLara itself is already ported to the PSX. Whether it's the original code or however, it's obvious they figured out the fixed point versions. 2 Quote Link to comment Share on other sites More sharing options...
JagChris Posted February 16, 2022 Share Posted February 16, 2022 (edited) 45 minutes ago, alucardX said: But this is OpenLara, not the original code written for Saturn/PSX. From what I can find it's mostly written from scratch with some disassembly from the PSX and Android versions. This is very interesting. Edited February 16, 2022 by JagChris 2 Quote Link to comment Share on other sites More sharing options...
alucardX Posted February 16, 2022 Share Posted February 16, 2022 10 minutes ago, JagChris said: I thought OpenLara was a reverse engineering of the original code? Either way it's also been out for 20 years for the Ngage. Another system without floating point. OpenLara itself is already ported to the PSX. Whether it's the original code or however, it's obvious they figured out the fixed point versions. Yes, having a codebase to work from they have the ability to adapt the engine where needed. Quote Link to comment Share on other sites More sharing options...
ArneCRosenfeldt Posted February 16, 2022 Share Posted February 16, 2022 Why won't we use floating point on the Jag? JRISC has a command to check for leading zeros. First you use 32bit to move world coordinates to camera relative coordinates. For multiplication you need 16 bit. So you convert everything to 16 bit exponent and 16 bit mantissa. The exponent is shared by a draw call. Like you first draw the stuff at the back with a large exponent. Then you draw everything with a smaller exponent until you draw the nose of the wolf in Laras face. 1 1 Quote Link to comment Share on other sites More sharing options...
Zerosquare Posted February 16, 2022 Share Posted February 16, 2022 (edited) Why don't you try it and show us how well it works? Edited February 16, 2022 by Zerosquare 8 Quote Link to comment Share on other sites More sharing options...
roots.genoa Posted February 16, 2022 Share Posted February 16, 2022 3 hours ago, ArneCRosenfeldt said: the nose of the wolf in Laras face Is that a phrase I don't know or some Google translation? ? Quote Link to comment Share on other sites More sharing options...
42bs Posted February 16, 2022 Share Posted February 16, 2022 40 minutes ago, roots.genoa said: Is that a phrase I don't know or some Google translation? ? I meanwhile assume the ACR is a AI which tries to troll the forum. And as most AIs, it produces sometime weird results. 4 Quote Link to comment Share on other sites More sharing options...
Lostdragon Posted February 16, 2022 Share Posted February 16, 2022 19 hours ago, phoboz said: I guess it was because the developers were fully focused on the Jaguar, and not to make portable code that should work on any platform. I would love to see Descent using that engine: Rebellion developments had expanded greatly in terms of the number of staff and available teams, by the time of Skyhammer and were very focused on multi platform titles. They issued a Press Release which said with Jaguar AVP and Chequered Flag now finished, they were working on the following titles: Legions Of The Undead:Progress varied depending on platform. (Jaguar, PlayStation and PC) Hammerhead (aka Skyhammer) Jaguar 40% complete. Tyrant-A strategic war game headed for PC 30% complete. Typhoon Omega-A title which all they could say was it was headed for PC and they weren't going to say anything else about at that time. And others.... Jason Kingsley told C+VG magazine that whilst Legions Of The Undead was originally intended as a Jaguar only, entry-level, explore and shoot opus using the AVP engine.. It had been totally rewritten for Jaguar, PC and Playstation. 3 Quote Link to comment Share on other sites More sharing options...
youxia Posted February 16, 2022 Share Posted February 16, 2022 1 hour ago, 42bs said: I meanwhile assume the ACR is a AI which tries to troll the forum. And as most AIs, it produces sometime weird results. Nailed it. Could make for a great show: When Good Bots Go Bad. 1 Quote Link to comment Share on other sites More sharing options...
zzip Posted February 16, 2022 Share Posted February 16, 2022 13 hours ago, leech said: Dude, the Jaguar could TOTALLY run Quake if only Atari had made a Jaguar 5 last year. 12 hours ago, leech said: One would hope we would at least have a 68010 by then... Unfortunately they only built a VCS 2 and forgot to include a 680x0 at all ? 2 2 Quote Link to comment Share on other sites More sharing options...
42bs Posted February 16, 2022 Share Posted February 16, 2022 5 minutes ago, zzip said: Unfortunately they only built a VCS 2 and forgot to include a 680x0 at all ? OMG, 680x0 are dead horses. Even ColdFire is. And MCORE (if someone knows this dead born thing). 1 Quote Link to comment Share on other sites More sharing options...
zzip Posted February 16, 2022 Share Posted February 16, 2022 2 minutes ago, 42bs said: OMG, 680x0 are dead horses. Even ColdFire is. And MCORE (if someone knows this dead born thing). It was not a serious statement ? 3 Quote Link to comment Share on other sites More sharing options...
alucardX Posted February 16, 2022 Share Posted February 16, 2022 45 minutes ago, youxia said: Nailed it. Could make for a great show: When Good Bots Go Bad. An Andy? Quote Link to comment Share on other sites More sharing options...
+cubanismo Posted February 16, 2022 Share Posted February 16, 2022 3 hours ago, zzip said: Dude, the Jaguar could TOTALLY run Quake if only Atari had made a Jaguar 5 last year. 3 hours ago, 42bs said: OMG, 680x0 are dead horses. Even ColdFire is. And MCORE (if someone knows this dead born thing). Yeah, this would be pointless. I know it's the wrong forum, but what we *really* need is a Lynx III that could run Quake. Could upgrade to a 65C816-based CPU (Still in production) to beef up the computing power 1 3 Quote Link to comment Share on other sites More sharing options...
42bs Posted February 16, 2022 Share Posted February 16, 2022 No problem. One could for example make a card which contains a FPGA with ARM which acts as GPU. This plus one of the new LCDs pimped up for VGA resolution ... 4 Quote Link to comment Share on other sites More sharing options...
alucardX Posted February 16, 2022 Share Posted February 16, 2022 1 minute ago, 42bs said: No problem. One could for example make a card which contains a FPGA with ARM which acts as GPU. This plus one of the new LCDs pimped up for VGA resolution ... With a dock and hdmi out. 1 Quote Link to comment Share on other sites More sharing options...
Editorb Posted February 16, 2022 Share Posted February 16, 2022 (edited) Ooo! Ooo! Can it have SCSI ports? And expansion slots! Edited February 16, 2022 by Editorb Quote Link to comment Share on other sites More sharing options...
42bs Posted February 16, 2022 Share Posted February 16, 2022 (edited) 12 minutes ago, Editorb said: Ooo! Ooo! Can it have SCSI ports? And expansion slots! SCSI? You are a real Oldtimer, boy. But it is an Atari, so ACSI ? But, we had a Jaguar with Ethernet, so. But, a handheld with expansion slotS? Edited February 16, 2022 by 42bs 1 Quote Link to comment Share on other sites More sharing options...
42bs Posted February 16, 2022 Share Posted February 16, 2022 54 minutes ago, alucardX said: With a dock and hdmi out. HDMI out is already done. There is someone makeing a console out of a Lynx with joystick port, HDMI connector and a new casing. 3 Quote Link to comment Share on other sites More sharing options...
Bill Loguidice Posted February 16, 2022 Share Posted February 16, 2022 1 hour ago, 42bs said: HDMI out is already done. There is someone makeing a console out of a Lynx with joystick port, HDMI connector and a new casing. Seems like the Analogue Pocket theoretically already accomplishes that goal and then some, although of course it's going to be stock constrained for (at least) the remainder of 2022. 2 Quote Link to comment Share on other sites More sharing options...
zzip Posted February 16, 2022 Share Posted February 16, 2022 1 hour ago, Editorb said: Ooo! Ooo! Can it have SCSI ports? And expansion slots! We need to think bigger, it is 2022 after all! -dual SCSI ports -5 disc CD-ROM carousel -instead of a channel 2-3 switch or a 3-4 switch, it could have a channel 2-3-4 switch! -maybe the controller can have a built-in LCD touchscreen that displays extra buttons, in case you lose the plastic overlays.. 1 4 Quote Link to comment Share on other sites More sharing options...
Editorb Posted February 16, 2022 Share Posted February 16, 2022 9 minutes ago, zzip said: We need to think bigger, it is 2022 after all! -dual SCSI ports Always a requirement! Can’t daisy chain or terminate the SCSI chain without dualies. 1 Quote Link to comment Share on other sites More sharing options...
+cubanismo Posted February 16, 2022 Share Posted February 16, 2022 1 hour ago, Bill Loguidice said: Seems like the Analogue Pocket theoretically already accomplishes that goal and then some, although of course it's going to be stock constrained for (at least) the remainder of 2022. Realistically the Evercade seems sufficient. I don't think we're talking about realistic things here though. After all, this is coming from a guy with 3 Lynx (Lynxs?) who spends more time than he should trying to decide if he should pick up the Lynx I or II on any given day to have a quick game of Checkered Flag. This lifestyle of plenty would have blown my pre-teen mind when I was busy plotting my route if I won this. Also, I can play Quake on nearly any computing device made in the last 20 years, at least one of which is within a foot of me 24/7 these days. But if I could play it on the Jag or Lynx... the world would be a better place. 4 1 Quote Link to comment Share on other sites More sharing options...
leech Posted February 17, 2022 Share Posted February 17, 2022 4 hours ago, cubanismo said: Realistically the Evercade seems sufficient. I don't think we're talking about realistic things here though. After all, this is coming from a guy with 3 Lynx (Lynxs?) who spends more time than he should trying to decide if he should pick up the Lynx I or II on any given day to have a quick game of Checkered Flag. This lifestyle of plenty would have blown my pre-teen mind when I was busy plotting my route if I won this. Also, I can play Quake on nearly any computing device made in the last 20 years, at least one of which is within a foot of me 24/7 these days. But if I could play it on the Jag or Lynx... the world would be a better place. Funny idea of the day; PiStorm for the Jaguar. Just throwing that out there. 1 Quote Link to comment Share on other sites More sharing options...
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