Search found 398 matches
- Sun May 02, 2021 1:42 am
- Forum: ZX BASIC
- Topic: Can't make anything fit into 1K... or is it me?
- Replies: 31
- Views: 11752
Re: Can't make anything fit into 1K... or is it me?
As said before. ZX81 uses most part of this 1K to keep the screen Display File.. luckily if you are running in less than 3K zeddy will use a compressed frame opening it from top left hand. so if you keep it to that corner you will have enough RAM to run it. 10 PRINT "PREMI %1 O %2" 30 IF INKEY$<>"1"...
- Sat May 01, 2021 6:33 pm
- Forum: Hardware
- Topic: Bad 12v line ISSUE 6A with only 5v RAM
- Replies: 27
- Views: 8268
Bad 12v line ISSUE 6A with only 5v RAM
Hi, I ve got this ISSUE 6A TIMEX/PORTUGAL from a CZ2000 (Argentinian rebranded) 20210501_130309.jpg This one has MCM 4517 low ram IC that only needs +5v being pin compatible with 4116 (this is not common here but not so rare either) Thing is that 12v line is down to about 1v and -5 to about -2v or l...
- Sat May 01, 2021 1:06 am
- Forum: GAMES
- Topic: WRX Space invaders
- Replies: 8
- Views: 3368
Re: WRX Space invaders
Does it support ZXPAND/+ ?JohnsBargs wrote: ↑Fri Apr 30, 2021 12:01 pm I wish the Retropie version of EightyOne supported 32KB
- Fri Apr 30, 2021 6:14 am
- Forum: GAMES
- Topic: WRX Space invaders
- Replies: 8
- Views: 3368
Re: WRX Space invaders
20210430_005856.jpg I did some Beta testing on this for the developer. Last version is really playable and I guess 99% accurate with the original. The "partial chroma" version is playable without a Chroma81 interfase with a wite background as we are used in ZX81. The full Chroma version shows the s...
- Mon Apr 19, 2021 3:51 am
- Forum: Hardware
- Topic: TS 1000 Composite Mod
- Replies: 3
- Views: 2037
Re: TS 1000 Composite Mod
Yes!! The MAK1024 buffer mod is much more better.. I had several troubles with the simple transistor/ resistor mod. In the meanwhile if the problem is the intensity try using a signal diode (the smaller glass ones 4148) on the transistor base, the lead coming from the ULA, with anode pointing to the...
- Sun Apr 11, 2021 4:01 pm
- Forum: Hardware
- Topic: ZXpand+ and Joystick...
- Replies: 6
- Views: 1733
Re: ZXpand+ and Joystick...
Thanks Mark !!
- Sun Apr 11, 2021 3:07 pm
- Forum: Hardware
- Topic: ZXpand+ and Joystick...
- Replies: 6
- Views: 1733
Re: ZXpand+ and Joystick...
The ZXpand replaces the ROM with it's own ROM. So the LOAD and SAVE commands are replaced with versions, where files are LOADed and SAVEd to the ZXpand's SD card. The COPY command to print a screenshot to the printer is totally removed, and replaced with CAT to display the content of SD card. And t...
- Sun Apr 11, 2021 1:33 pm
- Forum: Hardware
- Topic: ZXpand+ and Joystick...
- Replies: 6
- Views: 1733
- Sat Apr 10, 2021 11:55 pm
- Forum: Hardware
- Topic: ZXpand+ and Joystick...
- Replies: 6
- Views: 1733
ZXpand+ and Joystick...
Hi I tried to configure the ZXpand+ joystick with no success... I've used the CONFIG "J=UDLRF" command and then load the games but it doesn't seem to work as I spect to.. It actually works if I test in BASIC for inkey$ but if I configure it to the keys spected by some game .. it just doesn't work.. ...
- Mon Apr 05, 2021 7:17 am
- Forum: Hardware
- Topic: ZX81 ROMs 3 types?
- Replies: 57
- Views: 20084
Re: ZX81 ROMs 3 types?
The TS1500 ROM is identical to ZX81 Version. The checksum of both my 1500's differ from this list: 854885 = 550 855106 = 622 878117 = 649 as they report it as being 854417! They do have Timex roms, not Sinclair. Look at the TS1500/bugs section https://en.m.wikipedia.org/wiki/Timex_Sinclair_1000 My ...