07775: cpc6128: Incorrect ingame screen positioning in Space Moves and The Abduction of Oscar Z

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
07775	Graphics	Major	Always	Oct 27, 2020, 14:30	Apr 6, 2021, 22:04

Tester	StHiryu	View Status	Public	Platform	MAME (Unofficial Binary)
Assigned To		Resolution	Open	OS	Windows Vista/7/8 (64-bit)
Status [?]	Confirmed			Driver	amstrad/amstrad.cpp
Version	0.225	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	07775: cpc6128: Incorrect ingame screen positioning in Space Moves and The Abduction of Oscar Z
Description	The game area in both games is not displayed correctly. The score and game areas in Space moves appear cropped. Even the score section is wrongly positioned. In the Abduction of Oscar Z, there is a shift of the screen position to the right
Steps To Reproduce	1-Grab the .dsk images from https://www.cpc-power.com/ 2-Type run"space for Space moves or run"game for Oscar Z 3-Start the game.
Additional Information	Works fine at WinApe emulator. Attached images on MameUI 0.230. -Captured game on original hardware for Space Moves: -Video for Abduction of Oscar Z:
Github Commit

Flags
Regression Version
Affected Sets / Systems	cpc6128

Attached Files	MameUI.jpg (85,897 bytes) Oct 27, 2020, 14:30 Uploaded by StHiryu MameUI snap
	WinApe.jpg (151,939 bytes) Oct 27, 2020, 14:31 Uploaded by StHiryu WinApe snap
	oscarz.png (17,791 bytes) Apr 6, 2021, 16:31 Uploaded by StHiryu OscarZ

No.18099 Tafoid Administrator Oct 28, 2020, 22:05 edited on: Oct 28, 2020, 22:10	I'm curious - has anyone made a video of this running on actual hardware? While emulators vs. each other may be valid, since this is NEW software and untested, I am hesitant to accept this as working until it is seen on actual hardware and such would serve as a solid reference to how it should sound/act.
No.18105 StHiryu Tester Oct 29, 2020, 16:19	Added video captured on original hardware :)
No.18107 AmatCoder Tester Oct 29, 2020, 18:04	This bug is because MAME keeps increasing the line counter when it has reached the end of the vertical area.
No.18659 Tafoid Administrator Apr 6, 2021, 17:35	Why did you change the version? It should be the original reported version always.
No.18660 StHiryu Tester Apr 6, 2021, 20:15	Since I added the other game in this release, I've tested again Space Moves and has the same issues...No problem
No.18662 mahlemiut Developer Apr 6, 2021, 22:04	For OscarZ, the issue there is that the gate array adjusts the HSync length it receives from the 6845. It affects a few other games also, like Ghosts 'n Goblins and Out of this World.