Dragon Mythbusters: The Dragon 200E!

[zephyr]

Just tried the latest snapshot (22-Nov-2013 08:46). Shift+# (Shift+@ pause) is not working in translation mode.

[sixxie]

I missed that because my keyboard has tilde above backquote, which is used for CLEAR.

Reinstated, along with Shift+Space (for keyboards like mine, where tilde shares a key that isn't translated).

(Translates differently for D200E).

[zephyr]

Thanks!

[zephyr]

The attached ROM dump of the CoCo Downland v1.1 cartridge does not work under CoCo 1 or 2 emulation when the RAM is set greater than 16K. It works OK with the earlier XROAR snap-20130309.

I used the following command line settings:
CoCo 1
xroar -vo sdl -machine cocous -bas bas11.rom -extbas extbas10.rom -nodos -ram 16 -kbd-translate (game works)
xroar -vo sdl -machine cocous -bas bas11.rom -extbas extbas10.rom -nodos -ram 32 -kbd-translate (game crashes)
xroar -vo sdl -machine cocous -bas bas11.rom -extbas extbas10.rom -nodos -ram 32 -kbd-translate (game crashes)
CoCo 2
xroar -vo sdl -machine cocous -bas bas12.rom -extbas extbas11.rom -nodos -ram 16 -kbd-translate (game works)
xroar -vo sdl -machine cocous -bas bas12.rom -extbas extbas11.rom -nodos -ram 32 -kbd-translate (game crashes)
xroar -vo sdl -machine cocous -bas bas12.rom -extbas extbas11.rom -nodos -ram 64 -kbd-translate (game crashes)

[zephyr]

It won't load the attached game. The game loads OK under T3 and PC-Dragon emulation.

[sixxie]

The attached ROM dump of the CoCo Downland v1.1 cartridge does not work under CoCo 1 or 2 emulation when the RAM is set greater than 16K. It works OK with the earlier XROAR snap-20130309.

I can't replicate this. Can you confirm your ROM CRCs?

-bas bas11 -extbas extbas10

Code: Select all

	BASIC CRC = 0x6270955a
	Extended BASIC CRC = 0x6111a086

-bas bas12 -extbas extbas11

Code: Select all

	BASIC CRC = 0x54368805
	Extended BASIC CRC = 0xa82a6254

(Cart ROM CRC is 0x0229c319).

Or maybe I'm not testing it properly - is there a particular point at which it crashes? I'm generally able to traverse a couple of screens.

[sixxie]

It won't load the attached game. The game loads OK under T3 and PC-Dragon emulation.

I'd say that was a malformed cassette image - if it won't load into a real Dragon after a simple audio conversion, XRoar can only do "best efforts". Many bad dumps work, the occasional one falls through all the heuristics...

However, extending the leaders (or indeed adding any at all) at various points in the file, leads to a version that will load - version after -tape-rewrite attached.

I've actually already ripped this game from an original tape - the bytestream seems to be different, but the end result of loading is identical. File in here:

http://www.6809.org.uk/tmp/da/dragon_originals/

[zephyr]

The attached ROM dump of the CoCo Downland v1.1 cartridge does not work under CoCo 1 or 2 emulation when the RAM is set greater than 16K. It works OK with the earlier XROAR snap-20130309.

I can't replicate this. Can you confirm your ROM CRCs?

-bas bas11 -extbas extbas10

Code: Select all

	BASIC CRC = 0x6270955a
	Extended BASIC CRC = 0x6111a086

-bas bas12 -extbas extbas11

Code: Select all

	BASIC CRC = 0x54368805
	Extended BASIC CRC = 0xa82a6254

(Cart ROM CRC is 0x0229c319).

Or maybe I'm not testing it properly - is there a particular point at which it crashes? I'm generally able to traverse a couple of screens.

My ROMs are the original dumps. It only happens when you use Ctrl+I. The game works OK if you use Crl+L followed by EXEC&HC000.

[sixxie]

My ROMs are the original dumps. It only happens when you use Ctrl+I. The game works OK if you use Crl+L followed by EXEC&HC000.

Aha! I can reproduce that, ta. (I was running it as an argument from the command line).

[sixxie]

Ok, think that's fixed. Probably time to push out the 200-E supporting version as a proper release...