Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

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Wombat
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Posts: 753

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#11 » Tue Dec 07, 2021 11:29 am

:O so you have the deluxe 3-screen version at home.... AWESOME!
I figured you were referring to a one screen from a twin cab, which I think uses a normal Naomi.

Anyway in that case; the guy from arcademodbios.com makes carts on demand.

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Anonymouse
Outtrigger
Posts: 458

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#12 » Tue Dec 07, 2021 1:39 pm

Wombat wrote::O so you have the deluxe 3-screen version at home.... AWESOME!
I figured you were referring to a one screen from a twin cab, which I think uses a normal Naomi.

Anyway in that case; the guy from arcademodbios.com makes carts on demand.


Hi Wombat. I have a 2 seater twin at home. They also use Naomi Multi-Boards. The three screen deluxe is the BOSS. Never played one and turned down a few chances when I was a kid as I didn't fully appreciate the game back then.

The twin is awesome but would greatly benefit from a widescreen hack to give a wider viewing angle and greater sense of speed.

Thank you for the link. I just need to convince someone to try to make a patched ROM.
Dreamcast: Blue Swirl, 60hz, White LED, Removable battery holder, Internal SD card reader, BBA, DreamPi, RGB Scart

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Wombat
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Posts: 753

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#13 » Tue Dec 07, 2021 3:18 pm

Interesting and super awesome @Anonymouse, learning something new every day :) apologies for my ignorance on this matter :O

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Anonymouse
Outtrigger
Posts: 458

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#14 » Sun Dec 19, 2021 12:13 pm

There is a socketed EPR-22848 eprom chip on the F355 game board. I dont know what the data on that chip does but maybe code could be written and burned to a new chip that could do the widescreen hack. That would be a very elegant and cheap solution if possible
Dreamcast: Blue Swirl, 60hz, White LED, Removable battery holder, Internal SD card reader, BBA, DreamPi, RGB Scart

Esppiral
Quad Damage
Posts: 202

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#15 » Mon Dec 20, 2021 12:30 pm

I can't test it on real hardware, nor I know if it could break anything but....

NAOMI SEGA ENTERPRISES,LTD. F355 CHALLENGE
File epr-21902.ic22

FIND
AA AA AA 3F 64 7F 0A 0C BC 45 22 0C 36 82 0A 0C E0 62 20 0C E0 80 20 0C 20 81 20 0C 49 D3 8A 90 0B 43 EE 04 48 D3 7C E0 0B 43 EE 04 47 D3 83 90 0B 43 E6 F4 46 D2 0B 42 03 64 E3 6B 0C E0 6C 7B
REPLACE
39 8E E3 3F 64 7F 0A 0C BC 45 22 0C 36 82 0A 0C E0 62 20 0C E0 80 20 0C 20 81 20 0C 49 D3 8A 90 0B 43 EE 04 48 D3 7C E0 0B 43 EE 04 47 D3 83 90 0B 43 E6 F4 46 D2 0B 42 03 64 E3 6B 0C E0 6C 7B

FIND
AA AA AA 3F AC 3C 09 0C 00 00 00 40 00 00 34 43 DA 0F 49 40 70 CD 09 0C D0 C4 09 0C A8 38 09 0C BE 9F 9A 3F E6 2F 63 6E D6 2F 43 6D C6 2F 53 6C FB FF EB FF 22 4F 4F 93 33 3D F8 7F 44 8D 72 2F
REPLACE
39 8E E3 3F AC 3C 09 0C 00 00 00 40 00 00 34 43 DA 0F 49 40 70 CD 09 0C D0 C4 09 0C A8 38 09 0C BE 9F 9A 3F E6 2F 63 6E D6 2F 43 6D C6 2F 53 6C FB FF EB FF 22 4F 4F 93 33 3D F8 7F 44 8D 72 2F

Image

Image

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Anonymouse
Outtrigger
Posts: 458

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#16 » Mon Dec 20, 2021 1:44 pm

Esppiral wrote:I can't test it on real hardware, nor I know if it could break anything but....

NAOMI SEGA ENTERPRISES,LTD. F355 CHALLENGE
File epr-21902.ic22

FIND
AA AA AA 3F 64 7F 0A 0C BC 45 22 0C 36 82 0A 0C E0 62 20 0C E0 80 20 0C 20 81 20 0C 49 D3 8A 90 0B 43 EE 04 48 D3 7C E0 0B 43 EE 04 47 D3 83 90 0B 43 E6 F4 46 D2 0B 42 03 64 E3 6B 0C E0 6C 7B
REPLACE
39 8E E3 3F 64 7F 0A 0C BC 45 22 0C 36 82 0A 0C E0 62 20 0C E0 80 20 0C 20 81 20 0C 49 D3 8A 90 0B 43 EE 04 48 D3 7C E0 0B 43 EE 04 47 D3 83 90 0B 43 E6 F4 46 D2 0B 42 03 64 E3 6B 0C E0 6C 7B

FIND
AA AA AA 3F AC 3C 09 0C 00 00 00 40 00 00 34 43 DA 0F 49 40 70 CD 09 0C D0 C4 09 0C A8 38 09 0C BE 9F 9A 3F E6 2F 63 6E D6 2F 43 6D C6 2F 53 6C FB FF EB FF 22 4F 4F 93 33 3D F8 7F 44 8D 72 2F
REPLACE
39 8E E3 3F AC 3C 09 0C 00 00 00 40 00 00 34 43 DA 0F 49 40 70 CD 09 0C D0 C4 09 0C A8 38 09 0C BE 9F 9A 3F E6 2F 63 6E D6 2F 43 6D C6 2F 53 6C FB FF EB FF 22 4F 4F 93 33 3D F8 7F 44 8D 72 2F

Image

Image


OMG! This would be amazing if this works and help out soooo many users as it would be a simple eprom chip swap. My machine is a twin not 3 screen deluxe. Will these codes still work OK?

Thank you so much esppiral for your input
Dreamcast: Blue Swirl, 60hz, White LED, Removable battery holder, Internal SD card reader, BBA, DreamPi, RGB Scart

Esppiral
Quad Damage
Posts: 202

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#17 » Tue Dec 21, 2021 7:31 am

Anonymouse wrote:
Esppiral wrote:I can't test it on real hardware, nor I know if it could break anything but....

NAOMI SEGA ENTERPRISES,LTD. F355 CHALLENGE
File epr-21902.ic22

FIND
AA AA AA 3F 64 7F 0A 0C BC 45 22 0C 36 82 0A 0C E0 62 20 0C E0 80 20 0C 20 81 20 0C 49 D3 8A 90 0B 43 EE 04 48 D3 7C E0 0B 43 EE 04 47 D3 83 90 0B 43 E6 F4 46 D2 0B 42 03 64 E3 6B 0C E0 6C 7B
REPLACE
39 8E E3 3F 64 7F 0A 0C BC 45 22 0C 36 82 0A 0C E0 62 20 0C E0 80 20 0C 20 81 20 0C 49 D3 8A 90 0B 43 EE 04 48 D3 7C E0 0B 43 EE 04 47 D3 83 90 0B 43 E6 F4 46 D2 0B 42 03 64 E3 6B 0C E0 6C 7B

FIND
AA AA AA 3F AC 3C 09 0C 00 00 00 40 00 00 34 43 DA 0F 49 40 70 CD 09 0C D0 C4 09 0C A8 38 09 0C BE 9F 9A 3F E6 2F 63 6E D6 2F 43 6D C6 2F 53 6C FB FF EB FF 22 4F 4F 93 33 3D F8 7F 44 8D 72 2F
REPLACE
39 8E E3 3F AC 3C 09 0C 00 00 00 40 00 00 34 43 DA 0F 49 40 70 CD 09 0C D0 C4 09 0C A8 38 09 0C BE 9F 9A 3F E6 2F 63 6E D6 2F 43 6D C6 2F 53 6C FB FF EB FF 22 4F 4F 93 33 3D F8 7F 44 8D 72 2F

Image

Image


OMG! This would be amazing if this works and help out soooo many users as it would be a simple eprom chip swap. My machine is a twin not 3 screen deluxe. Will these codes still work OK?

Thank you so much esppiral for your input


Do you have any other Naomi or Naomi 2 game so I can check?

Esppiral
Quad Damage
Posts: 202

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#18 » Tue Dec 21, 2021 12:30 pm

Anonymouse wrote:
Esppiral wrote:I can't test it on real hardware, nor I know if it could break anything but....

NAOMI SEGA ENTERPRISES,LTD. F355 CHALLENGE
File epr-21902.ic22

FIND
AA AA AA 3F 64 7F 0A 0C BC 45 22 0C 36 82 0A 0C E0 62 20 0C E0 80 20 0C 20 81 20 0C 49 D3 8A 90 0B 43 EE 04 48 D3 7C E0 0B 43 EE 04 47 D3 83 90 0B 43 E6 F4 46 D2 0B 42 03 64 E3 6B 0C E0 6C 7B
REPLACE
39 8E E3 3F 64 7F 0A 0C BC 45 22 0C 36 82 0A 0C E0 62 20 0C E0 80 20 0C 20 81 20 0C 49 D3 8A 90 0B 43 EE 04 48 D3 7C E0 0B 43 EE 04 47 D3 83 90 0B 43 E6 F4 46 D2 0B 42 03 64 E3 6B 0C E0 6C 7B

FIND
AA AA AA 3F AC 3C 09 0C 00 00 00 40 00 00 34 43 DA 0F 49 40 70 CD 09 0C D0 C4 09 0C A8 38 09 0C BE 9F 9A 3F E6 2F 63 6E D6 2F 43 6D C6 2F 53 6C FB FF EB FF 22 4F 4F 93 33 3D F8 7F 44 8D 72 2F
REPLACE
39 8E E3 3F AC 3C 09 0C 00 00 00 40 00 00 34 43 DA 0F 49 40 70 CD 09 0C D0 C4 09 0C A8 38 09 0C BE 9F 9A 3F E6 2F 63 6E D6 2F 43 6D C6 2F 53 6C FB FF EB FF 22 4F 4F 93 33 3D F8 7F 44 8D 72 2F

Image

Image


OMG! This would be amazing if this works and help out soooo many users as it would be a simple eprom chip swap. My machine is a twin not 3 screen deluxe. Will these codes still work OK?

Thank you so much esppiral for your input



You could try this,

NAOMI SEGA ENTERPRISES,LTD. F355 CHALLENGE
FILE epr-22848.ic22

Code: Select all

FIND
AA AA AA 3F 7C 33 0B 0C 47 E1 3A 3F 99 99 19 3F 08 3E 0B 0C
REPLACE
39 8E E3 3F 7C 33 0B 0C 47 E1 3A 3F 99 99 19 3F 08 3E 0B 0C

FIND
AA AA AA 3F 00 00 00 40 00 00 34 43 DA 0F 49 40 30 81 0A 0C3
REPLACE
39 8E E3 3F 00 00 00 40 00 00 34 43 DA 0F 49 40 30 81 0A 0C3

User avatar
Anonymouse
Outtrigger
Posts: 458

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#19 » Wed Dec 22, 2021 6:49 am

Hi Esppiral. Thank you again for this! Amazing, I’ll need to test it out on real hardware. I’m currently out of the country for 3 months so may ask on UKVAC if any other f355 owners would be interested in trying it. If this works it would be quite a breakthrough.

I don’t own any other Naomi games but would like to get the rom board of F355 2 to test it out. That game widescreen hacked would be useful for me and other users.

List of some other Naomi racing games that would benefit would be:
- crazy taxi
- 18 wheeler
- initial D
- F355 challenge 2
Dreamcast: Blue Swirl, 60hz, White LED, Removable battery holder, Internal SD card reader, BBA, DreamPi, RGB Scart

Esppiral
Quad Damage
Posts: 202

Re: Widescreen hacks for Naomi ROMS? (SEGA Ferrari F355)

Post#20 » Wed Dec 22, 2021 1:04 pm

Anonymouse wrote:Hi Esppiral. Thank you again for this! Amazing, I’ll need to test it out on real hardware. I’m currently out of the country for 3 months so may ask on UKVAC if any other f355 owners would be interested in trying it. If this works it would be quite a breakthrough.

I don’t own any other Naomi games but would like to get the rom board of F355 2 to test it out. That game widescreen hacked would be useful for me and other users.

List of some other Naomi racing games that would benefit would be:
- crazy taxi
- 18 wheeler
- initial D
- F355 challenge 2


NAOM SIEGA ENTERPRISES,LTD. 18WHEELER (DELUXE) (REV.A)

FILE epr-22185a.ic22

Code: Select all

FIND
68 1B 12 0C 44 C8 3A 0C
REPLACE
AC 75 12 0C 44 C8 3A 0C

Image


Naomi2 SEGA ENTERPRISES,LTD.
VF4 EVOLUTION

FILE epr-23934.ic11

Code: Select all

FIND
AB AA AA 3F C0 58 10 0C 40 52 0D 0C 86 2F E6 2F 22 4F F3 6E 14 D1 13 63 40 73 13 67 42 77 30 62
REPLACE
39 8E E3 3F C0 58 10 0C 40 52 0D 0C 86 2F E6 2F 22 4F F3 6E 14 D1 13 63 40 73 13 67 42 77 30 62


Image

NAOMI SEGA ENTERPRISES,LTD.
CRAZY TAXI

FILE epr-21684.ic22

Code: Select all

FIND
00 00 B4 43 00 00 00 3F FF FF 00 00 F0 4D 06 0C AA AA AA 3F
REPLACE
00 00 87 43 00 00 00 3F FF FF 00 00 F0 4D 06 0C 39 8E E3 3F

FIND
00 00 B4 43 00 00 00 3F FF FF 00 00 30 19 06 0C 18 9C 1A 0C
REPLACE
00 00 87 43 00 00 00 3F FF FF 00 00 30 19 06 0C 18 9C 1A 0C


Image

Someone brave enough could try it on real hardware.

I am starting to thinking on building a patreon lol

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