Search found 197 matches

by blittled
Tue Oct 06, 2020 9:30 pm
Forum: Sinclair Misc
Topic: Where can I find "true" ZX81 fonts
Replies: 18
Views: 2494

Re: Where can I find "true" ZX81 fonts

mrtinb I actually was taught Fortran and 6502 assembly. The 6502 at the time looked like the cpu of the future (it didn't help that the university wasn't too far from where they developed the 6502) :D Things are getting a bit off target here. Once I get the zx81 emulation part working (hopefully by ...
by blittled
Tue Oct 06, 2020 6:28 pm
Forum: Sinclair Misc
Topic: Where can I find "true" ZX81 fonts
Replies: 18
Views: 2494

Re: Where can I find "true" ZX81 fonts

I'm glad to see I'm in good company :D
by blittled
Tue Oct 06, 2020 4:04 am
Forum: Sinclair Misc
Topic: Where can I find "true" ZX81 fonts
Replies: 18
Views: 2494

Re: Where can I find "true" ZX81 fonts

siggi, those are interesting links and may be something worth implementing once I get things going. Right now I'm having fun trying to implement the interrupts required to do the display. The Z80 engine I'm using counts t-states so I'm using that for the 207 count for the NMI. It isn't exact but sin...
by blittled
Wed Sep 30, 2020 6:33 pm
Forum: Sinclair Misc
Topic: Where can I find "true" ZX81 fonts
Replies: 18
Views: 2494

Re: Where can I find "true" ZX81 fonts

Thanks. I'll try them out. I've always wanted a ZX81 emulator with an IDE that single steps Basic and Assembly and is able to dump the contents of variables like IDEs such as Visual Studio. Since I am a programmer and want to try working on an emulator I'm giving this a try. I have had a couple of f...
by blittled
Wed Sep 30, 2020 3:06 am
Forum: Sinclair Misc
Topic: Where can I find "true" ZX81 fonts
Replies: 18
Views: 2494

Where can I find "true" ZX81 fonts

I am working on a project and I need a windows font with the all the graphic characters. The ones I find do have the alphanumeric characters and their inverse but no graphic characters.
by blittled
Mon Jul 27, 2020 3:41 am
Forum: Welcome Area
Topic: Hello from North Carolina
Replies: 5
Views: 3051

Re: Hello from North Carolina

Hi from Meadville PA. If you are ever interested in selling one of those books let me know. The Timex Sinclair 1000 was my faithful companion in my last year of Penn State where I got my degree in Electrical Engineering. jdfan1000 I didn't know there was Gladstone Electronics in Buffalo. That would'...
by blittled
Wed Jul 22, 2020 2:06 am
Forum: Sinclair Misc
Topic: Z80 Explorer
Replies: 3
Views: 2933

Z80 Explorer

If you ever wanted to know more about the inner workings of the Z80 cpu I have found an awesome application the Z80 Explorer by Goran Devic found on this site https://baltazarstudios.com/ . It permits you to look at the Z80 down to the transistor level, run simulations to see what is being made acti...
by blittled
Tue Jul 21, 2020 11:49 pm
Forum: ZX Spectrum Lounge
Topic: Online ZX Spectrum 48K
Replies: 1
Views: 2955

Online ZX Spectrum 48K

I found an excellent site, 8bitworkshop https://8bitworkshop.com that has many retro computers simulated in a web based interface. They just added the ZX Spectrum 48K https://8bitworkshop.com/v3.6.0/?platform=zx&file=hello.asm . There aren't too many examples yet. I have used the online fpga simulat...
by blittled
Thu Jul 16, 2020 12:41 am
Forum: Hardware
Topic: TZXDuino for ZX81
Replies: 24
Views: 8894

Re: TZXDuino for ZX81

The TZXDuino looks like an interesting device. I didn't know it existed. I did make my own SD to wav device with a Propeller chip and another with a small touchscreen and an Arduino Due. Mine handled .o, .p, .80 and .81 files. Sadly I lost the code for them in a hard drive crash :(. I went to the gi...
by blittled
Tue Feb 18, 2020 6:34 pm
Forum: Development
Topic: macOS Quicklook plugin for ZX81 files
Replies: 2
Views: 1897

Re: macOS Quicklook plugin for ZX81 files

I found a Windows 10 app version of Quicklook and also found that is in git. It would be interesting to see if I could add the plugin into a fork of the Windows 10 Quicklook.