Just experienced this issue, and then i found this thread.
I have only 3 cheats enabled, so I decided to see if it was a specific one which made the doors un-openable (the others work fine), and sure enough found one which enables infinite number of saves. I'm using the PAL version of RE0, and SVN R 3978 of Dolphin.
Here's the AR log as you requested:
Code Name: always save
Number of codes: 2
--- Running Code: 04153e00 38000037 ---
Command: 00000004
Doing Normal Code 00000000
Subtype: 00000000
Doing Ram Write And Fill
Hardware Address: 80153e00
Size: 00000002
32bit Write
--------
Wrote 38000037 to address 80153e00
--------
--- Running Code: 04153a50 60000000 ---
Command: 00000004
Doing Normal Code 00000000
Subtype: 00000000
Doing Ram Write And Fill
Hardware Address: 80153a50
Size: 00000002
32bit Write
--------
Wrote 60000000 to address 80153a50
--------
I have only 3 cheats enabled, so I decided to see if it was a specific one which made the doors un-openable (the others work fine), and sure enough found one which enables infinite number of saves. I'm using the PAL version of RE0, and SVN R 3978 of Dolphin.
Here's the AR log as you requested:
Code Name: always save
Number of codes: 2
--- Running Code: 04153e00 38000037 ---
Command: 00000004
Doing Normal Code 00000000
Subtype: 00000000
Doing Ram Write And Fill
Hardware Address: 80153e00
Size: 00000002
32bit Write
--------
Wrote 38000037 to address 80153e00
--------
--- Running Code: 04153a50 60000000 ---
Command: 00000004
Doing Normal Code 00000000
Subtype: 00000000
Doing Ram Write And Fill
Hardware Address: 80153a50
Size: 00000002
32bit Write
--------
Wrote 60000000 to address 80153a50
--------