Search found 478 matches

by at67
22 May 2022, 22:00
Forum: Hardware and software hacking
Topic: Memory detection
Replies: 12
Views: 311

Re: Memory detection

"gtasm bricks.vasm" generates bricks.gt1 file, but I have to change the first byte of generated bricks.gt1 from 0x01 to 0x00 to make a correct bricks.gt1, once done this bricks.gt1 runs well (strange) bricks.vasm has nothing to do with GLCC, it was written in a stand alone assembler known...
by at67
05 May 2022, 09:51
Forum: Hardware and software hacking
Topic: my Gigatron RAM and IO expansion does not work
Replies: 37
Views: 799

Re: my Gigatron RAM and IO expansion does not work

Yes and Yes.

P.S. The ATtiny85 doesn't support the PC COM/USB interface, it only supports the controller and PS2 keyboard. You need to use one of the beefier Arduino's to get access to a PC.
by at67
05 May 2022, 09:43
Forum: Hardware and software hacking
Topic: my Gigatron RAM and IO expansion does not work
Replies: 37
Views: 799

Re: my Gigatron RAM and IO expansion does not work

gfernval wrote: 05 May 2022, 09:09 What I´m missing is the sketch needed to program Arduino Uno
https://github.com/kervinck/gigatron-ro ... /BabelFish

As bmwtcu said, you need Python3 installed for this to function.
by at67
05 May 2022, 03:08
Forum: Hardware and software hacking
Topic: my Gigatron RAM and IO expansion does not work
Replies: 37
Views: 799

Re: my Gigatron RAM and IO expansion does not work

the visible difference is that the ROM version has an SDcard menu instead having to press CTRL-F1 in pluggy reloaded no ROM version. Are there other differences? That is the only difference, SDCARD.ROM contains the actual vCPU loading code and a menu entry to access it. Whereas the older ROM's have...
by at67
04 May 2022, 04:28
Forum: Hardware and software hacking
Topic: Gigatron Clone Ideas
Replies: 16
Views: 543

Re: Gigatron Clone Ideas

With the high res mode, rather than coming up with some ad hoc set of resistor values providing a murky colour palette; how about using a few extra gates to implement a 4bit LUT and fetch the colours either from the current 6bit palette, (much lower gate count), or from an 8bit palette, (either from...
by at67
04 May 2022, 04:17
Forum: Hardware and software hacking
Topic: Lies, Damned Lies and Benchmarks.
Replies: 23
Views: 1188

Re: Lies, Damned Lies and Benchmarks.

Nice! Where do I read about Mode 1975? Search for 1975 in https://github.com/kervinck/gigatron-rom/blob/master/Docs/SYS-functions.txt And: Line 3149: https://github.com/kervinck/gigatron-rom/blob/master/Core/dev.asm.py xora((1975>>8)^(1975&255)) #26 Poor man\'s 1975 detection bne(pc()+3) #27 br...
by at67
03 May 2022, 21:42
Forum: Hardware and software hacking
Topic: Gigatron Clone Ideas
Replies: 16
Views: 543

Re: Gigatron Clone Ideas

Video Repeater : viewtopic.php?t=303
by at67
03 May 2022, 10:52
Forum: Hardware and software hacking
Topic: Lies, Damned Lies and Benchmarks.
Replies: 23
Views: 1188

Re: Lies, Damned Lies and Benchmarks.

Messing around with Mode 1975 and new instructions recently added to ROMvX0, we have a new leader board champ!
by at67
19 Apr 2022, 19:26
Forum: Kit assembly gallery
Topic: Well, I made my Gigatron Emulator out of a PIC32 PIC
Replies: 1
Views: 220

Re: Well, I made my Gigatron Emulator out of a PIC32 PIC

Looks good, did you emulate sound as well? What vertical frequency does the emulation run at?
by at67
11 Apr 2022, 08:39
Forum: Support
Topic: Error compiling Babelfish
Replies: 5
Views: 340

Re: Error compiling Babelfish

How are you using a Leonardo with Pluggy Reloaded? i.e. How have you wired it up? Pluggy Reloaded uses a Pro micro that has a completely different pin-out. I assume you meant you are using the Leonardo with the stock BabelFish? The reason you are getting compiler errors is that there is no pre-proce...