Messing with search and replace

I was sick and bored today, and with no access to the computer, I tried messing with search and replace. I wanted to check if what I figured out is right... so here goes

Code:

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94000130 FCFF0000

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this is, of course, the activator. this one checks L+R

Code:

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D3000000 021E3122

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this is one space before the space to start from, right? in 1.0 the first space in the top left corner is 021E3124, so you start at 021E3122. And to make this code work with different game version, you just need to change the second half to fit with the version of the game?

Code:

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C0000000 00000FFF

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this is how many times to increment and check the offset again? in this case 4095, plus the first run through, making 4096, the entire 64 x 64 map. Right?

Code:

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DC000000 00000002

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Adds 2 to the offset

Code:

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F2000000 00000002

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copies the item for checking what you put in to search for

Code:

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92000000 0000XXXX

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of course this is just what it's searching for... and it can be replaced with

Code:

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82000000 0000XXXX
72000000 0000ZZZZ

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to replace a range, where XXXX is one less than the first hex in the range and ZZZZ is one more than the last? like for all weeds you'd do XXXX=0020 and ZZZZ=0025.

if you wanted to replace every spot in a loop, would just completely skipping this line work? it seemed to when I tried, but I don't know if that's a bad thing or not...

Code:

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10000000 0000YYYY

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this is just what's being placed in the spot being replaced

Code:

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D2000000 00000000

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the "terminator" (not the movie one though)


So if someone who knows more about this than me could tell me, am I right about this? And also tell me what exactly the 0xDC line does?

I think at least for 1.0 this seems right (I don't know why it wouldn't be right for another version except for the 0xD3 line possibly)

I made a code that worked fine to entirely remove everything in the first acre and it came out like this:

Code:

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94000130 FCFF0000
D3000000 021E3122
C0000000 000000FF
DC000000 00000002
10000000 0000FFF1
D2000000 00000000

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and I did a replace all weeds with blue roses that seemed to work, too. It came out like this:

Code:

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94000130 FCFF0000
D3000000 021E3122
C0000000 00000FFF
DC000000 00000002
F2000000 00000002
82000000 00000020
72000000 00000025
10000000 00000019
D2000000 00000000

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Code:

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D2000000 00000000

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That's the "terminator"

oh, thanks


any help yet on:

Code:

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DC000000 00000002

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Quote:

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Originally Posted by itsmeGames

oh, thanks


any help yet on:

Code:

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DC000000 00000002

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Adds 2 to the offset register or 021E3122 thus giving you the the next spot on the map.

so then what's this one for?

Code:

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F2000000 00000002

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Quote:

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Originally Posted by itsmeGames

so then what's this one for?

Code:

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F2000000 00000002

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Copies two bytes from the offset register to 2000000

um... ok... but what does that mean?

Basically it copies the item from the map (021E3124, by the time it gets here the first time around, because we added 2 to 021E3122) to 2000000

oh, ok, i get that now. so if you don't wanna search, you can take that line out, too then (if you wanna delete everything)

I re-worded my post above btw.

It's good to see somebody is learning from our teachings :)

I was just thinking that myself... lol