Search found 189 matches

by SevenFFF
Thu Sep 20, 2018 6:56 pm
Forum: Off-Topic
Topic: Next Mugs
Replies: 10
Views: 2441

Re: Next Mugs

by SevenFFF
Thu Sep 20, 2018 2:47 pm
Forum: Off-Topic
Topic: Next Mugs
Replies: 10
Views: 2441

Re: Next Mugs

oops, genuine freudian slip. Official SHIRT design!
by SevenFFF
Thu Sep 20, 2018 2:46 pm
Forum: Off-Topic
Topic: Next Mugs
Replies: 10
Views: 2441

Re: Next Mugs

Baggers has an official shit design somewhere, I think.

A 3D chess mug would be pretty neat ;)
by SevenFFF
Thu Sep 13, 2018 9:13 pm
Forum: Software
Topic: SETAE
Replies: 6
Views: 1018

Re: SETAE

Me neither, I was very surprised! Were you planning to use it for non-pixel purposes, then?
by SevenFFF
Thu Sep 13, 2018 5:16 pm
Forum: Software
Topic: SETAE
Replies: 6
Views: 1018

Re: SETAE

A=00100000b

The primary purpose of SETAE is to make it easy to plot ULA pixels, so the bits are numbered starting from the left.

Jim gives the example:

Code: Select all

ld d, ypos
ld e, xpos
pixelad
setae
or (hl)
ld (hl), a
by SevenFFF
Tue Sep 11, 2018 12:25 am
Forum: ZX Spectrum Next
Topic: Tape lead for Spectrum Next
Replies: 7
Views: 1076

Re: Tape lead for Spectrum Next

Yes it is. I use a lead like this: https://www.amazon.co.uk/dp/B071WPW292/ref=cm_sw_r_cp_awdb_t1_DOWLBbFDZAK9Z One end plugs into the PC and appears as a COM port. The other end plugs into the ESP port or J15 on the next board (TX, RX and GND). You can send data up to at least 2 megabits per second ...
by SevenFFF
Mon Sep 10, 2018 4:21 pm
Forum: ZX Spectrum Next
Topic: Tape lead for Spectrum Next
Replies: 7
Views: 1076

Re: Tape lead for Spectrum Next

I believe that's right Chris.

Richard Spencer sells a lead with a mono adaptor, tested on the Next. His shop is awesome. He also has a cassette recorder, and lots of other goodies.

https://store.activeconsult.co.uk/shop? ... ble&page=3
by SevenFFF
Sat Sep 08, 2018 4:22 pm
Forum: Software
Topic: PIXELAD/PIXELDN
Replies: 4
Views: 731

Re: PIXELAD/PIXELDN

It's possible there is a flag set for out of range, too. I didn't test this.

I don't think the extra opcodes usually set the standard flags though, because they are implemented outside of the processor module in the FPGA VHDL.
by SevenFFF
Sat Sep 08, 2018 4:14 pm
Forum: Software
Topic: PIXELAD/PIXELDN
Replies: 4
Views: 731

Re: PIXELAD/PIXELDN

I tested on the hardware. I think this just means that the opcode doesn't do bounds checking, it's a dumb formula. I tested the 9th scanline, and didn't see the pattern you would expect (1st scanline + 32). Maybe I made a mistake - I will retest for zesarux! Also will test the 65th scanline with pix...