09345: pc9821ap2 [Flame Zapper Kotsujin]: Launch through the co2jin.bat file gives "Palloc error".

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09345	Misc.	Major	Always	Dec 30, 2025, 10:57	9 hours ago

Tester	VasiliyFamiliya	View Status	Public	Platform	MAME (Official Binary)
Assigned To	Kale	Resolution	Fixed	OS	Windows (x64)
Status [?]	Resolved			Driver	nec/pc9821.cpp
Version	0.283	Fixed in Version	0.289GIT	Build	x64
		Fixed in Git Commit	e388240	Github Pull Request #

Summary	09345: pc9821ap2 [Flame Zapper Kotsujin]: Launch through the co2jin.bat file gives "Palloc error".
Description	No matter what is a sound card and from HD or from floppy the game launched from. The OS is msdos62. The game diskette (see an attachements) content is ripped from HDI image from Neo Kobe collection.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	pc9821ap2 [Flame Zapper Kotsujin]

Attached Files

No.23998 Robbbert Moderator Dec 30, 2025, 21:30	Kale, is this something you'd be interested in?
No.23999 Robbbert Moderator Dec 31, 2025, 09:38	Might be this? https://support.sas.com/documentation/onlinedoc/sasc/doc750/html/lr1/z2056075.htm
No.24001 Kale Developer Dec 31, 2025, 13:53	I can vaguely boot it by directly running the .hdi itself (and changing bps in setup menu to 256). The problem is that it will draw wrong because it expects SDIP GDC clock to be 2.5 MHz, which somehow gets overridden by game startup ...
No.24002 Kale Developer Dec 31, 2025, 14:15	Investigated a bit: 1. there's an inst.bat on provided floppy image, user should create a folder on desired HDD (like on YAHDI A:¥GAMES¥KOTSUJIN) then run B:¥INST.BAT B there. 2. run autoexec.bat (there's a goofy NAX setup specifically for this game) Nothing to fix here, closing.
No.24494 VasiliyFamiliya Tester 5 days ago	After the Neo Kobe HDI got to be autobootable, the real bug had been found - the large font character lower halves are cut out.
No.24495 VasiliyFamiliya Tester 5 days ago	See the new screenshots.
No.24500 Kale Developer 1 day ago edited on: 1 day ago	I've committed this 4 days ago https://github.com/mamedev/mame/commit/e388240e366e67f1e099ef2ad13a8db8bb0a75af which fixes this by chain reaction (was with a different HDI). I change the resolution just because something has been fixed. http://mamedev.emulab.it/kale/fast/files/0278_2551485858.png
No.24501 VasiliyFamiliya Tester 9 hours ago	As I understood, "Plasma display" (プラズマディスプレイ) DIPSW1 menu entry is responsible for resolution? I tried to change this, and Kotsujin look got fixed.