BMP 2 UDG for ZXPand with UDG Board

[Moggy]

All sorted Greg although shameful embarrassment means I'm not revealing how.

[Moggy]

Just an observation.

Saved some BMPs resized via windows paint (successfully) but when it comes to displaying them on the zeddy they are upside down!?

Yes I know the answer is to flip them before saving but was just curious as to why?

[GCHarder]

they are upside down!?

That has always been the case, I don't know why, see Wilf Rigter's article at

http://www.user.dccnet.com/wrigter/inde ... /BMP2P.htm

Regards;

Greg

[siggi]

they are upside down!?

That has always been the case, I don't know why, see Wilf Rigter's article at

http://www.user.dccnet.com/wrigter/inde ... /BMP2P.htm

Regards;

Greg

No, not always, but usually
There is a bit in the header, which indicates, whether it is up or down.

I once wrote a program to convert Zeddy Hires to BMP and set this bit different than usually. Thus I did not need to mirror the HIRES picture, but the PC programs (Firefox or similar) show the BMP correctly even when it is not upside down

Siggi

[mrtinb]

I have tried your great software on real ZX81 and I can happily report that it works with:

• UDG 4 ZXpand/ZXblast with set jumper to CHR$128
• ZXblast

To get it working on ZXblast:

• REM out line 40 LOAD "BMPS/"+B$+".BMP;32768"
• REM out line 9994 LLIST "M=L"
• When loading press L to load.
• Enter ZXblast loader with Double-Shift-L.
• Select BMP and append ":32768" and N/L to load.
• Press N/L back at the filename prompt.