Spectrum Computing Forums

I am wondering how far you can go with it though especially as you can't really use page 7 which is needed for disk access and page 3 at the same time (where the bootstrap is stored in memory). You could do one of the following:- Switch to special paging mode 0, relocate your remaining bootstrap co...

With apologies to Juan

There's ChinnyVision, who does reviews for a variety of platforms (mostly on real hardware) including the Spectrum. A fair few of his videos are multi-platform comparisons, but he does do the occasional standalone review now and again. Also Villordsutch, who mainly does a mix of ZX81 and Spectrum re...

The way trademark law works, if you don't actively defend any trademarks then you run the risk of losing them. This is a oft told myth frequently heard in defense of Nintendo. Is it only true for a company not currently actively promoting or selling a product using a particular trademark, and also ...

The Birds and the Bees.

R-Tape wrote: ↑

Tue Jan 22, 2019 3:25 pm

Could they have chosen orange, or brown, instead of magenta?

And should they have?!

All the available browns had been used up by the C64.

Seems to almost do what it needs to. The only thing left that I should've mentioned before is that it needs to RESet the LSB in HL (the data register). So whereas maybe HL=05c0h, after creating the mask, bit 6 of L needs to be cleared, giving the result HL=0580h. Does that make sense? This any good...

Kweepa wrote: ↑

Thu Jan 17, 2019 3:49 pm

No loops:
ld bc,hl
dec bc
ld a,h
xor 255
and b
ld b,a
ld a,l
xor 255
and c
ld c,a
Just uses HL & BC

ld bc,hl isn't a valid z80 instruction

Nice guide! I'd just like to point out that you should save a snapshot once you have it all working, so that you don't have to 'reflash' the emulated DivIDE flash memory each time you run Fuse.