system routines from spectrum 48k for zxbasic.

[ChewBakker]

hello, good day.

I want to buy "the spectrum" at the age of 76.
I come from Germany.
I'm currently playing with the fuse and the zxbasic.
This zxbasic is wonderful.

I also play with the asm from the zxbasic.
I now want to learn how to use the system routines of the spectrum 48k with the zxbasic-asm.

Where can I find a system listing for the spectrum 48k?

thanks.
Best wishes

If you are looking for documented ROM Disassembly for the ZX Spectrum, you can find them here:

GitHub - ZXSpectrumVault/rom-disassemblies: Disassemblies of the Sinclair ZX Spectrum, ZX80 and ZX81 ROMs.

ZXBasicStudio works with ZXBasic and allows full debugging. 

You can get everything you need from here for developing ZX Spectrum software/games:

BorielDev

There is a book detailing a lot about ZXBasic available on Amazon (and other Sources)

https://amzn.eu/d/dpCBws9