Post by tlaloc on May 27, 2020 19:51:44 GMT
Greetings,
Recently picked up a DE-10 Nano to try out the new TGFX16 core and was very impressed with the accuracy.
Having previously owned a TurboDuo, I was remembering while playing/testing that (unlike the HuCards) the CD-ROM was a copy-protection/region-protection free 'thing'.
In keeping with the fact that this 'MiSTer FPGA' project was about hardware accuracy and its faithful replication, I decided to attempt to run a test using an ISO image of River City Ransom (SCD) [NXCD3019].
When I attempted to run it on the MiSTer TGFX16-CD core using an image file of the TurboDuo's Super CD-ROM² System Card v3.01 (US) internal bios, I got a 'WARNING' message similar to what one would see if they attempted to run it using the older CD-ROM² System v2.00 bios on actual hardware.
Not long after, the author 'Sorgelig' closed Issue #101 that I had submitted on github relating to this issue, claiming "most japanese games require japanese bios", followed by a terse retort claiming that "this is not a bug".
While 'River City Ransom (SCD) [NXCD3019]' did indeed work on the MiSTer TGFX16-CD core after using an image file of the Super CD-ROM² System Card v3.0 (J) bios as Sorgelig suggested [in place of the Super CD-ROM² System Card v3.01 (US)], it was my understanding from what I've gathered about the actual physical hardware that the only Japanese PC-Engine CD-ROM game that required you to own a Japanese system card was 'Juuouki (Japan) [HA10817]' - which did in fact require the CD-ROM² System Card v1.0 (J) bios on everything I've ever tried it on [TurboDuo, Magic Engine, MiSTer FPGA, etc.] to prevent the 'scroll-lock after transformation' glitch present on the physical hardware.
I just wanted to help, but the MiSTer TGFX16 core author got all prickly, claiming it was a non-issue and chose to dismiss it as such.
I still feel that it is a valid bug to report as an issue - yet he does not.
I don't care if this gets 'fixed' in his TGFX16 core, as it can be remedied using the Japanese bios, but can anyone here help me convince him ['Sorgelig'] that he is incorrect in his presumption that 'most Japanese games require Japanese bios' as it relates to the TGFX16 hardware?
Perhaps someone with more knowledge (and physical hardware) than I on the subject can help answer the question of whether or not there were any other PCE CD games besides Juuouki (Japan) [HA10817] that required a Japanese bios to run on a TurboDuo or a TGFX16 CD Unit with a US Super CD-ROM² System Card?
If anyone here has an original silver of Downtown Nekketsu Monogatari, an un-modded TurboDuo and some time to test - can you please let me know if you see a 'WARNING' screen when attempting to run this Japanese CD-ROM game on a US system with Super CD-ROM² System Card v3.01 (U) as its bios?
Apologies in advance if this is the wrong forum for these types of discussions/questions.
Recently picked up a DE-10 Nano to try out the new TGFX16 core and was very impressed with the accuracy.
Having previously owned a TurboDuo, I was remembering while playing/testing that (unlike the HuCards) the CD-ROM was a copy-protection/region-protection free 'thing'.
In keeping with the fact that this 'MiSTer FPGA' project was about hardware accuracy and its faithful replication, I decided to attempt to run a test using an ISO image of River City Ransom (SCD) [NXCD3019].
When I attempted to run it on the MiSTer TGFX16-CD core using an image file of the TurboDuo's Super CD-ROM² System Card v3.01 (US) internal bios, I got a 'WARNING' message similar to what one would see if they attempted to run it using the older CD-ROM² System v2.00 bios on actual hardware.
Not long after, the author 'Sorgelig' closed Issue #101 that I had submitted on github relating to this issue, claiming "most japanese games require japanese bios", followed by a terse retort claiming that "this is not a bug".
While 'River City Ransom (SCD) [NXCD3019]' did indeed work on the MiSTer TGFX16-CD core after using an image file of the Super CD-ROM² System Card v3.0 (J) bios as Sorgelig suggested [in place of the Super CD-ROM² System Card v3.01 (US)], it was my understanding from what I've gathered about the actual physical hardware that the only Japanese PC-Engine CD-ROM game that required you to own a Japanese system card was 'Juuouki (Japan) [HA10817]' - which did in fact require the CD-ROM² System Card v1.0 (J) bios on everything I've ever tried it on [TurboDuo, Magic Engine, MiSTer FPGA, etc.] to prevent the 'scroll-lock after transformation' glitch present on the physical hardware.
I just wanted to help, but the MiSTer TGFX16 core author got all prickly, claiming it was a non-issue and chose to dismiss it as such.
I still feel that it is a valid bug to report as an issue - yet he does not.
I don't care if this gets 'fixed' in his TGFX16 core, as it can be remedied using the Japanese bios, but can anyone here help me convince him ['Sorgelig'] that he is incorrect in his presumption that 'most Japanese games require Japanese bios' as it relates to the TGFX16 hardware?
Perhaps someone with more knowledge (and physical hardware) than I on the subject can help answer the question of whether or not there were any other PCE CD games besides Juuouki (Japan) [HA10817] that required a Japanese bios to run on a TurboDuo or a TGFX16 CD Unit with a US Super CD-ROM² System Card?
If anyone here has an original silver of Downtown Nekketsu Monogatari, an un-modded TurboDuo and some time to test - can you please let me know if you see a 'WARNING' screen when attempting to run this Japanese CD-ROM game on a US system with Super CD-ROM² System Card v3.01 (U) as its bios?
Apologies in advance if this is the wrong forum for these types of discussions/questions.