Glitches in some games using Amstrad PC1512 mode

[Neville0097]

Code of Conduct & Contributing Guidelines

• I agree to follow the code of conduct and the contributing guidelines.

Have you checked that no other similar bug report(s) already exists?

• I have searched and didn't find any similar issues.

What operating system(s) this bug have occurred on?

Windows 10

What version(s) of DOSBox-X have this bug?

DOSBox-X v0.83.23

Describe the bug

I've been testing the "amastrad" machine mode lately and came across glitches in some games. Here are some screenshots

https://i.imgur.com/PlMfI2C.png

https://i.ibb.co/1J5gXWL/Top3.png

In the first screenshot the borders around the title card show the staring screen. I'm told the borders should be black.

In the second screenshot, the OCEAN logo from the previous config screen is visible. There's also a glitch around the lower part of the crosshair.

Expected behavior

The patch for the exclusive Amstrad PC1512 graphic mode is old, but I thought it was definitive. It seems to nee more testing.

Steps to reproduce the behaviour

Just load the games using the "machine=amstrad" option.

Used configuration

machine=amstrad

Emulator log

None

Additional context

None