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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
06165 Core Minor Always Mar 26, 2016, 20:15 Mar 27, 2016, 18:28
Tester AmatCoder View Status Public Platform MESS (Official Binary)
Assigned To Resolution Open OS Linux
Status [?] Confirmed Driver
Version 0.171 Fixed in Version Build 64-bit
Summary MESS-specific 06165: lynx: Mess fails to load carts when pointing to the full path
Description I get this error when I try Atari Lynx system:

sdlmame lynx -cart "/home/user/Downloads/roms/Pac-Land (USA, Europe).zip"
lynx.bin ROM NEEDS REDUMP
WARNING: the machine might not run correctly.
FATALERROR: Device Generic ROM Socket / RAM Socket / Cartridge Slot load failed: Unspecified error

It works fine if I launch from software list.

It works a few versions ago, so it seems a regression.
Steps To Reproduce
Additional Information
Flags
Regression Version
Affected Sets / Systems lynx
Attached Files
patch file icon lynx.patch (1,621 bytes) Mar 27, 2016, 18:24 Uploaded by AmatCoder
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Notes
4
User avatar
No.12478
cuavas
Administrator
Mar 27, 2016, 00:18
There are a lot of changes to the fullpath loading code in between 0.171 and 0.172. Fullpath loading for zip and 7zip archives has been tested on various systems with the code for 0.172 and seen to be working. Could you please re-test this when 0.172 is released? Also, please post the contents of the zip archive, including all files and directory structure.
User avatar
No.12479
AmatCoder
Tester
Mar 27, 2016, 01:11
edited on: Mar 27, 2016, 01:18
Yesterday I compiled and tested with git version and it did not work.

Files are no-intro roms...It fails with all, even unzipped. Example:
 
sdlmame lynx -cart "home/user/Downloads/roms/Klax (USA, Europe).lnx"
lynx.bin ROM NEEDS REDUMP
WARNING: the machine might not run correctly.
FATALERROR: Device Generic ROM Socket / RAM Socket / Cartridge Slot load failed: Unspecified error

PS.- Fullpath loading works with all systems that I tried except Atari Lynx.

User avatar
No.12480
Tafoid
Administrator
Mar 27, 2016, 04:16
The problem here is that NO-INTRO sets were likely never handled correctly at all via fullpath -cart loading. The lynx driver is very old (created over 15 years ago) and with little modification since its addition to source. Back then, the images were not raw (headerless) like as presented by NO_INTRO as most game images for all systems had developer created header files to best handle image types, sizes, mapping, etc. In this case, a 64-byte header detailing the image was and is required by the cart loading routine in source so if you attempt to load a NO-INTRO image (again, no added data/headers), the external cart load will fail.

The -cart fullpath load works fine with a GoodLynx copy of the same software (contains this header) and while the softlist entries use no-intro and they are loaded properly using this method - the external cart loading takes a different path and at this time only works with images containing headers.
User avatar
No.12483
AmatCoder
Tester
Mar 27, 2016, 18:28
edited on: Mar 27, 2016, 18:34
I have uploaded a possible patch to fix this issue (now it works with headerless images).
Feel free to rewrite it because I am not familiar with MAME source code.