TrustedUser
574
edits
(linking sega) |
m (DREAMCAST: Restore Linux Script / Information on Getting Valid CD-ROM image burnt for developers - This was lost when information was transferred to user documentation on readthedocs.) |
||
(3 intermediate revisions by 3 users not shown) | |||
Line 42: | Line 42: | ||
== About == | == About == | ||
ScummVM | |||
ScummVM has been ported to the [[Sega]] Dreamcast [[Platforms|platform]]. | |||
For more information, including how to use ScummVM on the Dreamcast, see [https://docs.scummvm.org/en/latest/other_platforms/sega_dreamcast.html the Sega Dreamcast user documentation]. | |||
== Developer Information== | |||
== | |||
== Notes on CD mastering == | == Notes on CD mastering == | ||
Line 56: | Line 54: | ||
Since the v1.2.1 release, the combined size of the engine plugins is larger than the available memory and thus a disc including all plugins will not work correctly. Only include the plugins for the engines needed when mastering a CD. | Since the v1.2.1 release, the combined size of the engine plugins is larger than the available memory and thus a disc including all plugins will not work correctly. Only include the plugins for the engines needed when mastering a CD. | ||
== | On Linux, the following script should burn a suitable CD from the contents of "cd-image-folder" and IP.BIN, though it may need tweaks depending on the cdrecord version used: | ||
<pre> | |||
#!/bin/sh | |||
dd if=/dev/zero bs=2352 count=300 of=audio.raw | |||
cdrecord dev=/dev/cdrom -multi -audio audio.raw | |||
cdrecord dev=/dev/cdrom -msinfo | |||
# Replace 0,11702 with values from previous command | |||
mkisofs -l -d -relaxed-filenames -C 0,11702 -o tmp.iso cd-image-folder | |||
( cat IP.BIN ; dd if=tmp.iso bs=2048 skip=16 ) > data.raw | |||
# Need to use -xa, NOT -xa1 to ensure that 2048 byte blocks are used. This may vary on different versions of cdrecord | |||
cdrecord dev=/dev/cdrom -multi -xa data.raw | |||
</pre> | |||
=== Running Debug Builds === | |||
Unlike release builds, development builds can be configured for serial port debugging. If you are compiling yourself, then this can be enabled by passing "--enable-debug" to the configure script. | Unlike release builds, development builds can be configured for serial port debugging. If you are compiling yourself, then this can be enabled by passing "--enable-debug" to the configure script. | ||
However, if this is enabled and there is no serial cable attached, or a terminal program is not running on this port, ScummVM | However, if this is enabled and there is no serial cable attached, or a terminal program is not running on this port, ScummVM will hang at the "SEGA" logo screen or a black screen due to RS232 flow control (the Dreamcast fails to get Clear-To-Send). | ||
If you don't have a serial debugging cable, then you can use the development builds from [http://buildbot.scummvm.org/builds.html here] which are not marked "with Serial Debug". | If you don't have a serial debugging cable, then you can use the development builds from [http://buildbot.scummvm.org/builds.html here] which are not marked "with Serial Debug". | ||
Also, the development build plugins are usually larger than the release ones i.e. unstripped/debugging symbols. | Also, the development build plugins are usually larger than the release ones i.e. unstripped/debugging symbols. If the combined size of the engine plugins on the CD is larger than the available memory, this will manifest as either a lock up of ScummVM or as a system reset before the selection menu appears. | ||
To confirm this, you can try opening the drive lid either during the "SEGA" screen (in which case no plugins will be loaded), or during the plugin loading (in which case you'd get some of the plugins). | To confirm this, you can try opening the drive lid either during the "SEGA" screen (in which case no plugins will be loaded), or during the plugin loading (in which case you'd get some of the plugins). | ||
If this fixes the issue, too many plugins on the disc is the most likely explanation. | If this fixes the issue, too many plugins on the disc is the most likely explanation. | ||
== External links == | ==External links== | ||
*[http://forums.scummvm.org/viewforum.php?f=9 ScummVM Dreamcast forum] | *[http://forums.scummvm.org/viewforum.php?f=9 ScummVM Dreamcast forum] |