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Thank you for te info. May I have to change the 7800.rom. no, you simply have to find the option to switch between common a7800 and the prototype BIOS alternatively, you can run by command line mess.exe a7800 -bios 1 Wow great. Thank you so much ! It�s really simple and working. 
Last edited by Anna Wu; 10/12/08 12:18 PM.
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SVN revision 3436
A400/A800 driver
Cartridge support
Can it be, only 16K (16.384) carts are working ?
Carts with smaller or bigger sizes are not working for me. 16K working 8K, 32K, 65K, 131K not working
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SVN revision 3429
Any ABC80x driver
If I try to start the emulator, I get following error message:
src/mess/drivers/abc80x.c: abc802 CPU 1 space memory map entry references nonexistant device type Luxor ABC-77,
tag abc77:abc77 SVN revision 3444 The Problem seems to be fixed. Thanks Curt. abc800m driver I am not able to start a loaded disk. As example: demo11.dsk RUN DEMO Tried the same file with ABCWIN 2.0 Beta and it works. ![[Linked Image from img360.imageshack.us]](http://img360.imageshack.us/img360/4729/abc800mtz2.th.png) ![[Linked Image from img360.imageshack.us]](http://img360.imageshack.us/images/thpix.gif) ![[Linked Image from img291.imageshack.us]](http://img291.imageshack.us/img291/2025/abcwinro3.th.png) ![[Linked Image from img291.imageshack.us]](http://img291.imageshack.us/images/thpix.gif)
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ABC80/80x drivers It is impossible for me, to find any tape file to test the tape function on MESS.
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Joined: Sep 2002
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Thank you for te info. May I have to change the 7800.rom. no, you simply have to find the option to switch between common a7800 and the prototype BIOS alternatively, you can run by command line mess.exe a7800 -bios 1 Wow great. Thank you so much ! It�s really simple and working. What's interesting about this is that the "PAL" 7800 BIOS with the built in Asteroids game is actually both NTSC and PAL. ;-) Though it was only previously enabled for PAL. The two new 7800 BIOS prototype's that were found are NTSC only though. Mitch
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What's interesting about this is that the "PAL" 7800 BIOS with the built in Asteroids game is actually both NTSC and PAL. ;-) Though it was only previously enabled for PAL.
The two new 7800 BIOS prototype's that were found are NTSC only though.
Mitch Theres more than one?
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What's interesting about this is that the "PAL" 7800 BIOS with the built in Asteroids game is actually both NTSC and PAL. ;-) Though it was only previously enabled for PAL.
The two new 7800 BIOS prototype's that were found are NTSC only though.
Mitch Theres more than one? There are two released versions of the 7800 BIOS. The standard NTSC one with the Atari logo; and the one with the built in Asteroids game that is both NTSC and PAL but usually labeled as PAL only. There are three prototype versions. One is an early version of the standard NTSC BIOS, one is a version of the standard NTSC BIOS and includes a built in copy of Pole Position and lastly there is the one that is an early version of the BIOS with the built in Asteroids but supports NTSC only. There are also three newer dev BIOS releases but I don't know if you care about those. Mitch
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What's interesting about this is that the "PAL" 7800 BIOS with the built in Asteroids game is actually both NTSC and PAL. ;-) Though it was only previously enabled for PAL.
The two new 7800 BIOS prototype's that were found are NTSC only though.
Mitch Theres more than one? There are two released versions of the 7800 BIOS. The standard NTSC one with the Atari logo; and the one with the built in Asteroids game that is both NTSC and PAL but usually labeled as PAL only. There are three prototype versions. One is an early version of the standard NTSC BIOS, one is a version of the standard NTSC BIOS and includes a built in copy of Pole Position and lastly there is the one that is an early version of the BIOS with the built in Asteroids but supports NTSC only. There are also three newer dev BIOS releases but I don't know if you care about those. Mitch You are talking about the Pole_Position_2_BIOS_Proto.bin ( 32K ), right ?
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There are three prototype versions. One is an early version of the standard NTSC BIOS, one is a version of the standard NTSC BIOS and includes a built in copy of Pole Position and lastly there is the one that is an early version of the BIOS with the built in Asteroids but supports NTSC only.
There are also three newer dev BIOS releases but I don't know if you care about those.
Mitch yes, we care. do you have additional info and/or docs?
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Joined: Mar 2005
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There are two released versions of the 7800 BIOS. The standard NTSC one with the Atari logo; and the one with the built in Asteroids game that is both NTSC and PAL but usually labeled as PAL only.
There are three prototype versions. One is an early version of the standard NTSC BIOS, one is a version of the standard NTSC BIOS and includes a built in copy of Pole Position and lastly there is the one that is an early version of the BIOS with the built in Asteroids but supports NTSC only.
There are also three newer dev BIOS releases but I don't know if you care about those.
Mitch Currently we only support the 2 standard NTSC and PAL dumps and the asteroids prototype bios. Do you have the checksum for the older ntsc bios version? I'm wondering if its the same as the checksum commented out in a7800.c
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