Not everything needs SA-1
Added 2020-12-14 14:21:05 +0000 UTCSURPRISE: Download now Super Castlevania with FastROM, under the attachments of this post! Use a BPS patcher (check https://sneslab.net/wiki/How_to_apply_ROM_patches if you don't have one) and apply against the USA version of Super Castlevania 4.
I just made a patch that makes Super Castlevania 4 run at 3.58 MHz instead of the conventional 2.68 MHz CPU clock from the SNES.
This is an experiment of a new FastROM conversion method using my conventional SA-1 tools (TheLastRemapper and DistinGUIsh) that allows converting games from SlowROM to FastROM with pretty good efficiency and much higher stability compared to a SA-1 Root release.
3.58 MHz FastROM is still far from SA-1 clock, 10.74 MHz. But for some cases it can be effective.
I saw that Super Castlevania 4 has some slowdown issues but they are not that heavy compared to other games, so I gave it a shot for FastROM and I wanted your feedback on how much did the game improve in terms of speed/performance.
As you might already know, please don't share the patch with anyone! This is an exclusive early-access gift for you all! 🎉
In case it reduces considerably we can take a look on the spots that still have slowdown and consider applying some manual code optimization in hope that it will remove slowdown from the remaining places definitely.
Hope you all like and I'm counting with your feedback.
Comments
Hi Aaron, I would need to make the patch from scratch for japanese version support. However, the restored patch works with the FastROM patch fine. https://www.romhacking.net/hacks/2928/ patch it over the fastrom version
Vitor
2021-02-10 00:29:54 +0000 UTCSorry I'm late to the conversation, but will this patch work on the Japanese ROM? I don't care for the censorship of the American ROM
2021-02-09 05:15:46 +0000 UTCJurger, that's pretty nice to hear! Thank you for testing it. I'm aware of the list, it's fairly accurate with the exception of the enhancement chips games that has the SlowROM mark but they are powered with a co-processor. I'm looking forward for more FastROM conversions, it's pretty easier to convert compared to SA-1 and the effectiveness is quite good.
Vitor
2020-12-24 22:49:50 +0000 UTC
