Trying to build a visual novel for MSX1 and looking for suggestions.

Never mind! I've posted them on my gallery on DA ^_^d
URL is http://theevhorscope.deviantart.com/gallery/28073416

Your pictures look awesome, did you succeed to load pictures and present them to the screen in C?

At first let me make clear these are just photoshops. I haven't wrote a single line of code, yet!

@jitursan
Thank you for the IMG thing and I am glad you like my stuff, too. Sure screen mode will be 256x192, then pictures may come in various size: 256x192 splash pages, 256x128 backgrounds, smaller inset but always "8x8 multiple". As for text, that's just an example. I am going to use just 32 colums to keep things simple and readable but... I will investigate the 64 columns thing. And I am actually going to use C. The kind ARTRAG provided me what looks like the definitive C transcompiler for Z80

@ARTRAG
At first, thank you for everything! Actually, I am still getting used to C but I know, at least by principle, what to do. However, I fear this won't spare you from being bothered a couple of times

@Huey
Thank you! As for the game's logic, I've got a simple scripting language in my mind. As soon as I'll got something actually working, be sure I will put everything out.

Mostly 3 years already? Sure time runs fast!
Okay, quick stock of the situation.
When I started, I wanted to do something that would run on any MSX. My biggest concern was being able to play tunes while loading data without stumbling. Of course, the solution was to use a fast support but ROMs are still pretty out of my reach so I decided that the target machine would be an MSX 1 with MSX-DOS and a fast mass storage, such as HDD or SD Card. I think this is an honest requirement because it can be achieved by just pushing something into a slot without any modification to the base hardware. Besides, if you keep things small there are tools which can turn a disk into a ROM.
As for the visual novel building and playing toolkit, the builder will be a PC software which gathers the needed resources into an single MSX-DOS compatible file. This should bypass the 112 files limit. The visual novel file will then be copied into an MSX-DOS system where it will be executed by the reader.
Talking about resources, we will have images, fonts, tunes and, of course, a script. The images will be monochrome both for technical reasons and stylistic choice and will be 256x128 pixel at most. You can see I am keeping images in the upper 2/3 of the screen, while the text will appear in the lower 1/3. The fonts will be a 128x128 monochrome image arranged in a 16x16 grid.
The source format for images and font should be any Java compatible but I would go for PNG. The tunes should be in PT3 but there's a lot I have to check and clarify about music on MSX. As for the scripting language, I think I have a nice prototype and I am writing the builder accordingly.