Gordon Henderson

Engineer. C, BCPL, BASIC, ASM, 6502/816/RISC-V. Pi/Arduino/FPGA. Horseman. Lifeguard & Swim teacher. Now at

[Gordon Henderson @drogon]

Life changes. Most things do. Now looking at https://t.co/68veaglnYO

[Gordon Henderson @drogon]

Happy Festivities. Here is a tree of blinkenlights made with a 6507, 4K of ROM, 4K of RAM running TinyBasic. Enjoy!

[Gordon Henderson @drogon]

Added the VIA plus the chip select wire which I forgot to route (Doh!), made up a board with some LEDs and later today I'll add "wiring" into my TinyBasic for it...

[Gordon Henderson @drogon]

I seem to have a TinyBasic addiction now... In my original blog, I suggested it might fit in a minimal system of 4KB ROM and 4KB RAM... Well, here it is: The CPU is a 6507 which can address 8KB, so a 4/4KB split ROM/RAM. Software serial, 2Mhz. A PCB is in the making...

[Gordon Henderson @drogon]

And the PCB is made. It works too!

[Gordon Henderson @drogon]

Still fiddling around with TinyBasic on the 6502 - this time the W65C134-SXB board from @WDC65XX ... Bloggy thing here: https://t.co/dbK3gCdwT3 and video here: https://t.co/dT790FHRO1

[Gordon Henderson @drogon]

View of the blue supermoon rising over the Callanish stones a few nights back...

[Gordon Henderson @drogon]

Yesterday, 5 children (4-5 yro) I've been teaching since the new year did their first swims without floats. (push & glides, but it's a start!) Something I've seen many times but they somehow seemed special. Don't know why, but seeing those 5 smiling happy faces made my day.

[Safer Roads Humber @HumberRoads]

It’s now a year since the Highway Code was changed and the @BritishHorse Society are reminding drivers to pass horses wide and slow.
Click for more information https://t.co/L9IAHNZhxi
#ShareTheRoad

[Gordon Henderson @drogon]

I was on a train recently ...

[Gordon Henderson @drogon]

Nice (?) misty autumnal mornings...

[Gordon Henderson @drogon]

@Gadgetoid Your hair isn't as good as The Hoffs ... ;-)

[Gordon Henderson @drogon]

@futurewas8bit Diesel was £1.889 last Tuesday at the place I usually fill up who do "Cheap Tuesdays" - regular price last week was £1.899 but that 1p helps, even at 55mpg. I wonder what this week will bring )-:

[Gordon Henderson @drogon]

@gedgehead I spend between 12-14 hours a week in a pool... It's not the chlorine it's the wrinkles!

[Gordon Henderson @drogon]

@ruskin147 I used to make beetroot sourdoughs in my little bakery - the colour isn't heat stable but you still get a nice colour inside. I added cheese cubes to some to make "Beetroot volcanoes" too. A very nice bread and I'm sure yours will come out well.

[Gordon Henderson @drogon]

@BritishHorse If only my horse could tell the time ...

[Gordon Henderson @drogon]

@booyaa The hand mixer thing doesn't work in Scotland where we use tumshies rather than pumpkins... ( @scruss )

[Gordon Henderson @drogon]

@awalkerinLA @xotmatrix What could possibly go wrong ...

[Gordon Henderson @drogon]

It's one of those sorts of bright, blustery and sometimes drizzly autumnal days today...

[Gordon Henderson @drogon]

@saburwulf It was v6 I used. Fond memories. One day I might even build that PiDP11 I have...