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#81
RBI Baseball / Learning how to dig into the c...
Last post by chicobo329 - 09/01/25, 08:55:18 AMSo I knew nothing about how to look into a game's data to find specific things. I remember years ago wondering about how to find the information on players in the Genesis version of RBI 3 that I grew up with as a kid. Thankfully I was able to pick up and teach myself at least some basic things about digging into a hex editor, thanks to a variety of things. I'd like to share my story! It's taught me some basic ROM inspection and got me interested in data science.
The player attributes of the NES RBI games are pretty consistent for batters and hitters. The manuals provided with those games do also show the rosters of every team, but not any of the info as presented on Dee-Nee (Power, Contact, etc.) except for Speed and in a different measurement. I looked up ancient posts by Nightwulf, some of which are over 22 years old, and also got a .txt file of the NES RBI 3 player stats which I've reattached here (credit to him btw!).
But man, I never looked into hex editing/viewing before! I was kinda stumped and didn't know where to start. My initial impression is that RBI 3 Genesis has the same attributes as NES but I wanted some confirmation about this. But I had one lead: RBI 4, RBI '93, and RBI '94 have a 'View Teams' mode that lets you see rosters and their attributes...but not in the way Dee-Nee displays them. For example, Power is given a value from 10 to 94 and Contact is rated with a higher number for a better hitting ability as opposed to a lower number that Dee-Nee shows it.
And then I had a bigger lead: RBI 4 made a mistake with their View Teams page! If you check out the pitching speeds, the numbers are given hex values instead of decimal values. With this crucial bit in mind, I had a silly idea. I usually play ROMs on Bizhawk which happens to have a built in Hex Editor/Viewer. So I dumped the ROM hex and looked for a pattern, in the example of say Bob Milacki, looking for $9B $AB $BD next to each in the code using a Ctrl + F. Bingo! I found it, and Bizhawk has a handy feature as well to display ASCII text on the right. Bingo! I found Milacki in offsets $0FC0C0 and $0FC0D0. I had to still make sense of what each of these bytes do though! I brought up a hex-to-decimal convertor and found that the hex translates to:
SL $9B = 155
ME $AB = 171
FA $BD = 189
Hey, these look like pitching speeds! Everything started to make sense and I looked up a lot of Nightwulf's early posts on this forum to get an idea of how to read this data. Since I got this lead in RBI 4 and through pitcher data, I'll start by showing what I found.
The player attributes of the NES RBI games are pretty consistent for batters and hitters. The manuals provided with those games do also show the rosters of every team, but not any of the info as presented on Dee-Nee (Power, Contact, etc.) except for Speed and in a different measurement. I looked up ancient posts by Nightwulf, some of which are over 22 years old, and also got a .txt file of the NES RBI 3 player stats which I've reattached here (credit to him btw!).
But man, I never looked into hex editing/viewing before! I was kinda stumped and didn't know where to start. My initial impression is that RBI 3 Genesis has the same attributes as NES but I wanted some confirmation about this. But I had one lead: RBI 4, RBI '93, and RBI '94 have a 'View Teams' mode that lets you see rosters and their attributes...but not in the way Dee-Nee displays them. For example, Power is given a value from 10 to 94 and Contact is rated with a higher number for a better hitting ability as opposed to a lower number that Dee-Nee shows it.
And then I had a bigger lead: RBI 4 made a mistake with their View Teams page! If you check out the pitching speeds, the numbers are given hex values instead of decimal values. With this crucial bit in mind, I had a silly idea. I usually play ROMs on Bizhawk which happens to have a built in Hex Editor/Viewer. So I dumped the ROM hex and looked for a pattern, in the example of say Bob Milacki, looking for $9B $AB $BD next to each in the code using a Ctrl + F. Bingo! I found it, and Bizhawk has a handy feature as well to display ASCII text on the right. Bingo! I found Milacki in offsets $0FC0C0 and $0FC0D0. I had to still make sense of what each of these bytes do though! I brought up a hex-to-decimal convertor and found that the hex translates to:
SL $9B = 155
ME $AB = 171
FA $BD = 189
Hey, these look like pitching speeds! Everything started to make sense and I looked up a lot of Nightwulf's early posts on this forum to get an idea of how to read this data. Since I got this lead in RBI 4 and through pitcher data, I'll start by showing what I found.
#82
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by ultimate7 - 08/30/25, 11:18:11 AMYes, curve speed is the "normal" pitch speed rating whether you curve it or not
#83
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by Gantry - 08/30/25, 11:06:08 AMQuote from: ultimate7 on 08/30/25, 10:06:32 AMOne minor on drop rating, high drop rating just makes the knuckleball more likely to dropNoticed that one, I remember too something about the "curve" speed rating. I think it's misleading that it really just means the speed of a normal pitch and he thought it was something different. Or I think that's right? My info is pretty rusty as well
#84
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by ultimate7 - 08/30/25, 10:06:32 AMOne minor on drop rating, high drop rating just makes the knuckleball more likely to drop
#85
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by ultimate7 - 08/30/25, 10:00:58 AMWhat ROM was being used at the 2:40 - 3:00 timeframe?
#86
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by Gantry - 08/30/25, 06:02:41 AMIsn't there a 30 team editor out there at this point that is modern for rosters? I watched last night but I don't remember that in the vid, but I'm pretty sure people are updating ROMs still with that.
#87
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by Gantry - 08/30/25, 06:01:54 AMThey did a good job, got some things wrong but they are minor. I should really take an hour this weekend and update the site/FAQ a bit (if nothing else for the recently departed) and make a post on the YT video with some errate.
If anyone watches and notice any info that was off post it here, I'll relay it all in one post.
Give that vid a thumbs up people!
If anyone watches and notice any info that was off post it here, I'll relay it all in one post.
Give that vid a thumbs up people!
#88
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by BDawk - 08/29/25, 08:01:41 PMQuote from: GDavis on 08/29/25, 06:42:34 PMNo mention of the 80s song draft?
Or even if he could weigh in on the debate over over which is the most important component of pizza, crust, sauce, toppings.
#89
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by GDavis - 08/29/25, 06:42:34 PMNo mention of the 80s song draft?
#90
RBI Baseball / Re: Dee Nee shouted out in thi...
Last post by Big Hath - 08/29/25, 06:35:40 PMand now we wait and watch the new memberships come rolling in
