Yes - I'm just starting to find that out the hard wayI would advice to design the computer by starting with the data paths. The instruction set can always follow. Many do it the other way around and end up with complex designs.
Search found 101 matches
- 16 Oct 2019, 21:01
- Forum: Hardware and software hacking
- Topic: Modified Gigatron Design Ideas
- Replies: 57
- Views: 55731
Re: Modified Gigatron Design Ideas
- 14 Oct 2019, 12:19
- Forum: Escape Meta Alt Control Shift
- Topic: Summer + Hebden Bridge, Cambridge and Berlin
- Replies: 13
- Views: 12876
Re: Summer + Hebden Bridge, Cambridge and Berlin
You can watch Marcel's 40 minute presentation here:
https://media.ccc.de/v/vcfb19_-_126_-_e ... k/playlist
https://media.ccc.de/v/vcfb19_-_126_-_e ... k/playlist
- 24 Sep 2019, 15:42
- Forum: Escape Meta Alt Control Shift
- Topic: On the shoulders of Giants
- Replies: 6
- Views: 7350
On the shoulders of Giants
Hi All, Many of us will now have had our Gigatron for a year or more, and will have witnessed the wonderful progress that the project has made since it's inception in March 2017. Who would have thought that we would be able to emulate the 6502, or access an SD-Card. Inspired by Marcel's Gigatron des...
- 13 Sep 2019, 15:14
- Forum: Hardware and software hacking
- Topic: A new Digital Simulation Tool
- Replies: 0
- Views: 11278
A new Digital Simulation Tool
A friend put me onto this new open source digital simulation tool. https://github.com/hneemann/Digital/releases/tag/v0.23 It's very similar to Logisim which is now no longer supported. It has an extensive library of TTL devices and memory - so it should be possible to simulate the Gigatron. I decide...
- 06 Sep 2019, 09:53
- Forum: Escape Meta Alt Control Shift
- Topic: Summer + Hebden Bridge, Cambridge and Berlin
- Replies: 13
- Views: 12876
Re: Summer + Hebden Bridge, Cambridge and Berlin
Hi All, Following a successful presentation at OSHCamp in Hebden Bridge last weekend to over 80 Open Source Hardware enthusiasts, the "Gigatron Roadshow" is rolling into Cambridge this weekend for the Retro Computer Festival. September 7th+8th Retro Computer Festival 2019 http://www.comput...
- 01 Aug 2019, 16:47
- Forum: Escape Meta Alt Control Shift
- Topic: A very-Tiny BASIC interpreter
- Replies: 0
- Views: 11930
A very-Tiny BASIC interpreter
Hi All, This BASIC interpreter was featured on Hackaday on 31-7-19 and at 512 bytes long is carefully tailored to fit into a boot sector. Whilst written in 8088 assembly language and has a very limited command set, it shows what can be done with very minimal resources. Anybody interested in Tiny lan...
- 30 Jul 2019, 22:08
- Forum: Hardware and software hacking
- Topic: Expansion bus
- Replies: 98
- Views: 93719
Re: Expansion bus
Martijn,
Fantastic work!
I'm looking forwards to replicating this on my Gigatron.
regards
Ken
Fantastic work!
I'm looking forwards to replicating this on my Gigatron.
regards
Ken
- 27 Jul 2019, 12:46
- Forum: Hardware and software hacking
- Topic: Expansion bus
- Replies: 98
- Views: 93719
Re: Expansion bus
Hi xopr, Marcel, This is great progress, and something I must reproduce on my Gigatron. I like your thinking of using an Arduino as a programmable SPI slave. You can program the Arduino to do whatever you want in response to a few SPI commands. There is scope for a common set of commands to access t...
- 13 Jul 2019, 14:45
- Forum: Hardware and software hacking
- Topic: v6502
- Replies: 20
- Views: 25804
Re: v6502
Marcel,
Another useful tool to make v6502 development easier.
I wrote a Z80 disassembler in BASIC whilst at school - but this is very concise.
Good Work!
Ken
Another useful tool to make v6502 development easier.
I wrote a Z80 disassembler in BASIC whilst at school - but this is very concise.
Good Work!
Ken
- 03 Jul 2019, 16:29
- Forum: Hardware and software hacking
- Topic: v6502
- Replies: 20
- Views: 25804
Re: v6502
Hi Marcel, Pleased to see your interest in VTL02. I first came across this a few years ago when I found the original paper describing this "Very Tiny Language" which appeared initially in 1976 following the introduction of the Altair computer. It was quite an achievement to squeeze a usabl...