Sega360

UPDATED WIKI: Home

GrahamStoneman — Thu, 21 Feb 2008 21:28:44 GMT

Project Description
Sega Genesis & Motorola 68000 emulator for the Xbox 360

Some Important Notes:

After a six month break, I've decided to resume development on Sega360

This project is in very early days, and currently DOES NOT PLAY GAMES. The 68000 instruction set is mostly done, but needs thorough testing and performance tuning - there are certainly some bugs that need ironing out. I've started emulating the VDP (video display processor), and have implemented horizontal scrolling. Sprites probably won't be in there for a few months yet. I haven't even looked at emulating the sound chips yet, that can wait until the very end.

The reason I'm publishing this project now is to drum up some early interest. It would be excellent if anybody with any experience in emulators, especially the Sega Genesis, could get in touch, and if you want to lend a hand then that would be great. I looked at porting an existing C++ Genesis emulator, but all the source code I could find was horrendously complicated, and much of it used assembler language which I'm assuming wouldn't work on the Xbox 360 anyway.

My long term goal is to create a Sega Genesis/Master System/Game Gear/Sega CD/32X emulator for the Xbox 360 that runs at full speed and with full sound support, entirely in C#. I'd like to keep the 68000 core as general purpose as possible so that people can use it in other future emulator projects.

Source code checked in

GrahamStoneman — Thu, 21 Feb 2008 21:18:44 GMT

Removed obj directories

Source code checked in

GrahamStoneman — Thu, 21 Feb 2008 21:17:19 GMT

Updated to XNA Game Studio 2.0

Patch Uploaded

patcar — Thu, 30 Aug 2007 07:37:06 GMT

patcar has uploaded a patch.

Description:
Ignore the last one. I didn't quite have the right things in the right places. On the plus side, this one also has NBCD working.

Patch Uploaded

patcar — Wed, 29 Aug 2007 08:03:48 GMT

patcar has uploaded a patch.

Description:
Added support of ABCD, SBCD, and most of the logic for NBCD (stupid addressing modes).

NEW POST: Can't build

GrahamStoneman — Tue, 28 Aug 2007 21:20:19 GMT

Sorry, I've added the missing file now. You can get hold of the Gods rom from the RomNation website.

Source code checked in

GrahamStoneman — Tue, 28 Aug 2007 21:17:03 GMT

Added missing sprite file, fixed zipped SMD bug

NEW POST: Can't build

patcar — Sun, 26 Aug 2007 21:58:37 GMT

Never mind. It's really easy to add one of those at it turns out. Even so, as the font itself isn't going to be added, it couldn't hurt to add it to the repository.

NEW POST: Can't build

patcar — Sun, 26 Aug 2007 18:39:41 GMT

The font "CourierNew.spritefont" is missing from the source code repository.

Source code checked in

GrahamStoneman — Fri, 24 Aug 2007 22:33:11 GMT

Fixed bug in integer arithmetic, added zip file support

UPDATED WIKI: Home

GrahamStoneman — Thu, 23 Aug 2007 23:22:42 GMT

Project Description
Sega Genesis & Motorola 68000 emulator for the Xbox 360

Some Important Notes:

This project is in very early days, and currently DOES NOT PLAY GAMES. The 68000 instruction set is mostly done, but needs thorough testing and performance tuning - there are certainly some bugs that need ironing out. I've started emulating the VDP (video display processor), and have implemented horizontal scrolling. Sprites probably won't be in there for a few months yet. I haven't even looked at emulating the sound chips yet, that can wait until the very end.

The reason I'm publishing this project now is to drum up some early interest. It would be excellent if anybody with any experience in emulators, especially the Sega Genesis, could get in touch, and if you want to lend a hand then that would be great. I looked at porting an existing C++ Genesis emulator, but all the source code I could find was horrendously complicated, and much of it used assembler language which I'm assuming wouldn't work on the Xbox 360 anyway.

My long term goal is to create a Sega Genesis/Master System/Game Gear/Sega CD/32X emulator for the Xbox 360 that runs at full speed and with full sound support, entirely in C#. I'd like to keep the 68000 core as general purpose as possible so that people can use it in other future emulator projects.

Source code checked in

GrahamStoneman — Mon, 13 Aug 2007 06:06:08 GMT

Finished horizontal scrolling

Source code checked in

GrahamStoneman — Sun, 05 Aug 2007 22:00:22 GMT

Bug fixes, made a start on H scrolling

UPDATED WIKI: Home

GrahamStoneman — Sat, 04 Aug 2007 18:12:58 GMT

Project Description
Sega Genesis & Motorola 68000 emulator for the Xbox 360

Some Important Notes:

This project is in very early days, and currently DOES NOT PLAY GAMES. The 68000 instruction set is mostly done, but needs thorough testing and performance tuning. I still need to emulate the VDP, and then the sound chip, which is likely to take a good few months.

The reason I'm publishing this project now is to drum up some early interest. It would be excellent if anybody with any experience in emulators, especially the Sega Genesis, could get in touch, and if you want to lend a hand then that would be great too. I looked at porting an existing C++ Genesis emulator, but all the source code I could find was horrendously complicated, and much of it used assembler language which I'm assuming wouldn't work on the Xbox 360 anyway.

My long term goal is to create a Sega Genesis/Master System/Game Gear/Sega CD/32X emulator for the Xbox 360 that runs at full speed and with full sound support, entirely in C#. I'd like to keep the 68000 core as general purpose as possible so that people can use it in other future emulator projects.

Source code checked in

GrahamStoneman — Fri, 03 Aug 2007 21:44:08 GMT

General bug fixes

UPDATED WIKI: Home

GrahamStoneman — Mon, 30 Jul 2007 08:08:12 GMT

Project Description
Sega Genesis & Motorola 68000 emulator for the Xbox 360

Some Important Notes:

This project is in very early days, and currently DOES NOT PLAY GAMES. The 68000 instruction set is mostly done, but needs thorough testing and performance tuning. I still need to emulate the VDP, and then the sound chip, which is likely to take a good few months.

The reason I'm publishing this project now is to drum up some early interest. It would be excellent if anybody with any experience in emulators, especially the Sega Genesis, could get in touch, and if you want to lend a hand then that would be great too. I looked at porting an existing C++ Genesis emulator, but all the source code I could find was horrendously complicated, and much of it used assembler language which I'm assuming wouldn't work on the Xbox 360 anyway.

My long term goal is to create a Sega Genesis/Master System/Game Gear/Sega CD/32X emulator for the Xbox 360 that runs at full speed and with full sound support, entirely in C#. I'd like to keep the 68000 core as general purpose as possible so that people can use it in other future emulator projects.

UPDATED WIKI: Home

GrahamStoneman — Mon, 30 Jul 2007 08:07:52 GMT

Project Description
Sega Genesis & Motorola 68000 emulator for the Xbox 360

Some Important Notes:

This project is in very early days, and currently DOES NOT PLAY GAMES. The 68000 instruction set is mostly done, but needs thorough testing and performance tuning. I still need to emulate the VDP, and then the sound chip, which is likely to take a good few months.

The reason I'm publishing this project now is to drum up some early interest. It would be excellent if anybody with any experience in emulators, especially the Sega Genesis, could get in touch, and if you want to lend a hand then that would be great too. I looked at porting an existing C++ Genesis emulator, but all the source code I could find was horrendously complicated, and much of it used assembler language which I'm assuming wouldn't work on the Xbox 360 anyway.

My long term goal is to create a Sega Genesis/Master System/Game Gear/Sega CD/32X emulator for the Xbox 360 that runs at full speed and with full sound support, entirely in C#. I'd like to keep the 68000 core as general purpose as possible so that people can use it in other future emulator projects.

Source code checked in

GrahamStoneman — Sun, 29 Jul 2007 20:21:02 GMT

Some early work on the VDP, joypad input.

UPDATED WIKI: Home

GrahamStoneman — Sun, 29 Jul 2007 20:18:24 GMT

Project Description
Sega Genesis & Motorola 68000 emulator for the Xbox 360

Some Important Notes:

This project is in very early days, and currently DOES NOT PLAY GAMES. The 68000 instruction set is mostly done, but needs thorough testing and performance tuning. I still need to emulate the VDP, and then the sound chip, which is likely to take a good few months.

The reason I'm publishing this project now is to drum up some early interest. It would be excellent if anybody with any experience in emulators, especially the Sega Genesis, could get in touch, and if you want to lend a hand then that would be great too. I looked at porting an existing C++ Genesis emulator, but all the source code I could find was horrendously complicated, and much of it used assembler language which I'm assuming wouldn't work on the Xbox 360 anyway.

My long term goal is to create a Sega Genesis/Master System/Game Gear/Sega CD/32X emulator for the Xbox 360 that runs at full speed and with full sound support, entirely in C#. I'd like to keep the 68000 core as general purpose as possible so that people can use it in other future emulator projects.

UPDATED WIKI: Home

GrahamStoneman — Sun, 29 Jul 2007 13:09:47 GMT

Project Description
Sega Genesis & Motorola 68000 emulator for the Xbox 360

Some Important Notes:

This project is in very early days, and currently DOES NOT PLAY GAMES. The 68000 instruction set is mostly done, but needs thorough testing and performance tuning. I still need to emulate the VDP, and then the sound chip, which is likely to take a good few months.

The reason I'm publishing this project now is to drum up some early interest. It would be excellent if anybody with any experience in emulators, especially the Sega Genesis, could get in touch, and if you want to lend a hand then that would be great too. I looked at porting an existing C++ Genesis emulator, but all the source code I could find was horrendously complicated, and much of it used assembler language which I'm assuming wouldn't work on the Xbox 360 anyway.

My long term goal is to create a Sega Genesis/Master System/Game Gear/Sega CD/32X emulator for the Xbox 360 that runs at full speed and with full sound support, entirely in C#. I'd like to keep the 68000 core as general purpose as possible so that people can use it in other future emulator projects.