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Joined: Jan 2012
Posts: 883 Likes: 12
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Looks like the 6845 gets out of sync with the screen. Its a tricky thing to get right.
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Joined: Jan 2012
Posts: 1,165 Likes: 10
Very Senior Member
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Very Senior Member
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The emulated Amstrad PC1512 and PC1640 have a keyboard problem. crazyc diagnosed it as "d" acting as "backspace"
Hitting the "d" key multiple times sometimes leaves a "d" standing, but it's hard to type "cd" as the leading "c" usually gets erased ...
NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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Joined: Jan 2012
Posts: 1,165 Likes: 10
Very Senior Member
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Very Senior Member
Joined: Jan 2012
Posts: 1,165 Likes: 10 |
This page has got the ROMs, bootdisks and some docs about Atari's PC line http://www.ataripc.net/bios/
NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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Joined: Feb 2005
Posts: 449
Senior Member
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Senior Member
Joined: Feb 2005
Posts: 449 |
The emulated Amstrad PC1512 and PC1640 have a keyboard problem. crazyc diagnosed it as "d" acting as "backspace"
Hitting the "d" key multiple times sometimes leaves a "d" standing, but it's hard to type "cd" as the leading "c" usually gets erased ... It happens because MAME maps joystick left to D by default and that translates to backspace in Amstrad's DOS.
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Joined: Jan 2012
Posts: 1,165 Likes: 10
Very Senior Member
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Very Senior Member
Joined: Jan 2012
Posts: 1,165 Likes: 10 |
The Amstrad keyboard has a joystick port. According to this document mouse and keyboard also generate scancodes. https://www.win.tue.nl/~aeb/linux/kbd/scancodes-3.html I will try to redefine the joystick mapping from Amstrad's DOS as mentioned here http://www.vcfed.org/forum/archive/index.php/t-35363.html and then report back 
Last edited by rfka01; 09/02/16 10:14 AM.
NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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Joined: Jan 2012
Posts: 1,165 Likes: 10
Very Senior Member
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Very Senior Member
Joined: Jan 2012
Posts: 1,165 Likes: 10 |
OK, changing the "P2 LEFT" setting in MAME's "Input this machine" menu of the PC1512 driver to, say, Shift-D, gets rid of the issue of disappearing characters. The NVR utility has settings for keyboard, mouse and joystick but covers only the mouse and fire buttons and the DEL=> key. PC1640 and PC1512 service manuals here ... http://www.retroisle.com/amstrad/pcs/Ori..._Agujereado.pdfhttp://www.retroisle.com/amstrad/pcs/Ori..._Agujereado.pdf
NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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Joined: May 2012
Posts: 555 Likes: 1
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Toshiba T1000 WIP: https://github.com/mamedev/mame/pull/1850 (screenshot taken before adding RTC chip to memory map)
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Joined: May 2012
Posts: 555 Likes: 1
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Senior Member
Joined: May 2012
Posts: 555 Likes: 1 |
+ ROM-DOS boots fine. Diags are not passing yet (apparently T1000 uses a 80C50 as keyboard controller, and diags are trying to test its 160 bytes of memory...) and I've no idea how expanded memory ("HardRAM") is configured -- port 0xC3 is a good condidate though. 
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Joined: Apr 2005
Posts: 604 Likes: 2
Senior Member
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Joined: Apr 2005
Posts: 604 Likes: 2 |
Isn't port 0xc3 within the 2nd DMA controller range? Or did the T1000 have something else mapped there?
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