Search found 50 matches

by monsonite
24 Sep 2019, 15:42
Forum: Escape Meta Alt Control Shift
Topic: On the shoulders of Giants
Replies: 2
Views: 74

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...
by monsonite
13 Sep 2019, 15:14
Forum: Hardware and software hacking
Topic: A new Digital Simulation Tool
Replies: 0
Views: 100

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...
by monsonite
06 Sep 2019, 09:53
Forum: Escape Meta Alt Control Shift
Topic: Summer + Hebden Bridge, Cambridge and Berlin
Replies: 13
Views: 489

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.computinghistory...
by monsonite
01 Aug 2019, 16:47
Forum: Escape Meta Alt Control Shift
Topic: A very-Tiny BASIC interpreter
Replies: 0
Views: 126

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...
by monsonite
30 Jul 2019, 22:08
Forum: Hardware and software hacking
Topic: Expansion bus
Replies: 77
Views: 6273

Re: Expansion bus

Martijn,

Fantastic work!

I'm looking forwards to replicating this on my Gigatron.

regards


Ken
by monsonite
27 Jul 2019, 12:46
Forum: Hardware and software hacking
Topic: Expansion bus
Replies: 77
Views: 6273

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...
by monsonite
13 Jul 2019, 14:45
Forum: Hardware and software hacking
Topic: v6502
Replies: 17
Views: 2729

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
by monsonite
03 Jul 2019, 16:29
Forum: Hardware and software hacking
Topic: v6502
Replies: 17
Views: 2729

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 usable, interpr...
by monsonite
15 Jun 2019, 13:18
Forum: Hardware and software hacking
Topic: v6502
Replies: 17
Views: 2729

Re: v6502

Marcel, Thanks for the prompt reply. I was thinking that a 30Hz frame rate might be tolerable - but anything less than that would be hard on the eyes and the brain. Films, back in the old days, were shot at 24 fps, and had a sort of motion blur, depending on the shutter angle - that gave them a soft...