Search found 218 matches

by SevenFFF
Tue Sep 17, 2019 4:57 pm
Forum: ZX Spectrum Next
Topic: Some news
Replies: 15
Views: 1110

Re: Some news

Funds have been released to SpecNext Ltd, and have funded the creation of the moulds, board manufacture, keyboard development, testing rounds, and all ongoing services of the third-party tech partners, who were all working at normal commercial terms - cash up front, or 30 days credit, or whatever ea...
by SevenFFF
Mon Sep 16, 2019 10:42 pm
Forum: Z80 Assembly
Topic: DAAD Adventure Writer and ZX Next
Replies: 36
Views: 602

Re: DAAD Adventure Writer and ZX Next

The way I did it in my tools was just to replace 0xE3 with 0xE7 (which is what the ULA magenta gets redefined as). Then 0xE3 is always available for transparency. Crude but you really can’t tell 99.99% of the time.
by SevenFFF
Mon Sep 16, 2019 7:06 pm
Forum: Z80 Assembly
Topic: DAAD Adventure Writer and ZX Next
Replies: 36
Views: 602

Re: DAAD Adventure Writer and ZX Next

Yes, that's a very good point. ZEsarux will use the host file system if you use some options: tbblue-fast-boot-mode, enable-esxdos-handler, esxdos-root-dir. But you can only use a few file types for the launch program - SNA, TAP, maybe a couple more. Here's a full example: zesarux.exe --noconfigfile...
by SevenFFF
Mon Sep 16, 2019 4:28 pm
Forum: Z80 Assembly
Topic: DAAD Adventure Writer and ZX Next
Replies: 36
Views: 602

Re: DAAD Adventure Writer and ZX Next

Sounds good. Another thing to double-check regarding loading pixel data: after the rst 0x08 call, test carry, and if set, a contains the error code. Sometimes people skip the this check, but it's good to always do it, and freeze with a red border if there are any errors, or something similar. Someti...
by SevenFFF
Mon Sep 16, 2019 2:31 pm
Forum: Z80 Assembly
Topic: DAAD Adventure Writer and ZX Next
Replies: 36
Views: 602

Re: DAAD Adventure Writer and ZX Next

I think Ped has covered it. The clip window is definitely wrong, and his correction should fix that. Check to see if the first palette entry is dark green. If so, then it's likely you're writing the same value to all 256 entries. You can test this by temporarily commenting out the palette setting co...
by SevenFFF
Fri Sep 13, 2019 2:45 pm
Forum: Z80 Assembly
Topic: DAAD Adventure Writer and ZX Next
Replies: 36
Views: 602

Re: DAAD Adventure Writer and ZX Next

Welcome Uto! All of those things should be compatible with old core versions. You can read the core version through nextreg 0x01 and 0x0E, and offer a suitable upgrade message for older cores. If you don't want to test your code with every old core version, I suggest 2.00.00 would be a sensible cuto...
by SevenFFF
Wed Sep 04, 2019 12:18 pm
Forum: ZX Spectrum Next
Topic: Is it possible to create a "Next" in a ZX-UNO like board?
Replies: 6
Views: 321

Re: Is it possible to create a "Next" in a ZX-UNO like board?

The ZX-DOS is the successor to the ZX-UNO. It has the same FPGA chip as the Next, and the same size and case as the UNO. Antonio even sells it for cheaper than he sells the UNO, I think. It’s completely possible to synthesize the Next core for the DOS. This has not been a priority for anyone on the ...
by SevenFFF
Wed Aug 14, 2019 12:10 am
Forum: Other Cores
Topic: A Megadrive core?
Replies: 7
Views: 2767

Re: A Megadrive core?

No. The Next hardware has SRAM and the MISter hardware has DDR3 and optional SDR SDRAM. The Next core is made for the Next hardware and SRAM. Not for the MISTer hardware. The Next core won’t run as designed on the MISTer without work on the core. An SDRAM controller would be part of the FPGA core pr...
by SevenFFF
Tue Aug 13, 2019 8:35 pm
Forum: Other Cores
Topic: A Megadrive core?
Replies: 7
Views: 2767

Re: A Megadrive core?

For sure, the MISTer is a very beefy system. The Next core doesn’t yet have a SDRAM controller, as the Next uses SRAM, so it would need a fair bit of work and testing beyond simply synthesising for Altera.
by SevenFFF
Mon Jul 22, 2019 10:41 pm
Forum: Basic
Topic: Converting to NextBasic
Replies: 8
Views: 971

Re: Converting to NextBasic

IDE_TOKENISER is documented here, on page 22-23: https://gitlab.com/thesmog358/tbblue/blob/master/docs/nextzxos/NextZXOS_and_esxDOS_APIs.pdf IDE_TOKENISER ($01d8) Available from NextZXOS v2.01 Convert BASIC between plain text & tokenised forms IN: B=0, tokenise BASIC line (plain text -> tokenised) B...