SNESDEV

It’s now been a few days that I’m in a battle with the ROM layout. I’m starting to have huge ressource, a bit less than 32kb. So I tried to put that in an other bank. That was monday. Since it does’t working until this morning, after reading many documents and analysing other roms.

Now everything goes well except thatmy favoriteemu/debugger the so called “Snes9X1.43.ep9r8.exe” isn’t working with it. It’s mixing the bank access and copies the actual code into VRAM and not the data coming from from bank 1. Now all the other emu are working great (was not the case of bsnes before).

I provide you the .smc format rom. If you have any idea why it’s not working don’t hesitate to contact me ASAP via the comments on this post.

Here are some info about the rom layout from the linking process :

Section: ORG:    ROM ORG:  SIZE:
CODE     008000  000000      4CCH (  1228)
UDATA    000000  ------       10H (    16)
vectors  00FFE4  007FE4       1CH (    28)
registra 00FFB0  007FB0       2FH (    47)
bank4    018000  008000     7F40H ( 32576)
Total                       8467H ( 33895)

The huge data is in bank4 section. Address is set to 01:8000 and in the rom it’s at 8000. Main code is at address 00:8000 and rom is 0000. The registration data of the cart is set to mode 20 (lorom)

If you have any other question -> comments.

Here is the Rom for you testing and analysing.

See ya, Lint

PS : Easter egg in the rom (tested working on bsnes and znes) … Hint … play with your pad (i said too much, I know !!!)

FIXED !!! Look at the comments !!! 

This entry was posted on Wednesday, April 30th, 2008 at 2:24 pm and is filed under Snes, Software dev. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.