Building a MiniPET is Better with Friends - [Taylor and Amy] love taking on retro computer projects. This week they’re buildin... - https://hackaday.com/2023/07/17/building-a-minipet-is-better-with-friends/ #retrocomputing #6502processor #taylorandamy #chuckpeddle #vintage #mos #pet

I think I need to practice more at Lunar Lander
#kim1 #6502processor #retroccomputing #diyelectronics

Accidentally put in common ANODE 7-segment displays instead of common CATHODE. Womp womp.
#kim1 #mostechnology #diyelectronics #6502processor

It's been so long since I've done 6502 assembly (and I love the cover picture so much) that I went on Amazon and picked up this really slick hardcover book! ❤️ Check the ISBN on the back for your favorite bookstore to get a copy for yourself! #atari #atari8bit #atari130xe #6502processor #assemblylanguage

I was reading abour #Forth computers and found that Rockwell made a version of the #6502processor with a built-in Forth interpreter! It's not pin-compatible with the original 6502 but has the same assembly language plus a ROM that implemented a Forth interpreter. You could add nearly 16kB of external memory to the built in 192 bytes of RAM (or ROM or I/O), and it could also boot from floppy.

http://archive.6502.org/datasheets/rockwell_r65f11_r65f12_forth_microcomputers.pdf

there are even a couple on ebay but of course I can't vouch for the seller https://www.ebay.com/itm/185625244395

#retroComputing #8bits

@blu3r4d0n Or Quinn Dunki's "Veronica" ? #6502asm #6502processor #vintagecomputing I myself did a lot of 6502 asm Wrote a small DOS in asm as well so I could use my #wirewrap floppy disk controller. ;)

@rdpor Try searching #6502processor #z80 #ibm5150 #pdp
and so on.

@rdpor Try searching #6502processor #z80 #ibm5150 #pdp
and so on.

Advanced Art Nouveau!

#6502processor #6502asm

Herrlich: Ben Eater hat seit langem mal wieder ein Video gepostet und es ist – wie immer – großartig! #rs232 #8bit #hp16c #6502processor #electronics #BenEater https://youtu.be/AHYNxpqKqwo

It's been a long time since I've written a thread-switch routine.

https://git.sr.ht/~vertigo/k1emu/tree/debug16/item/disk0/kernel.s#L138-214

#65816processor #6502processor

This feels so wrong.

BRK, for all of my life, has been defined as opcode $00. That's it; just $00. That's all Apple and Commodore ever use it for; just a dumb, stupid breakpoint interrupt.

But, for as long as the #6502processor has existed, and as continued by the #65816processor , it is not, nor has it ever, nor will it ever be an 8-bit opcode.

It has always been a 16-bit opcode. Although the TIM monitor (the first ML monitor for the 6502 as far as I can tell) treats BRK as a 1-byte opcode, this is synthesized in its IRQ/BRK handler. The MOS documentation even mentions that BRK is a two-byte opcode.

As far as I know, my machine language monitor interface will be the first to recognize this formally, and to define interfaces based on these semantics.

I'm defining monitor APIs which use BRK as a kind of system call instruction. "Opcodes" like $FF00 and $FE00.

:blobhappy: Awwww, the 6502 has growed up!

New release of lib65816 fixes an install bug which caused config.h to be overlooked.

#6502asm #6502processor #65816processor

RIP. :-( Chuck Peddle was the main designer of the 6502 processor.

"It is with sadness WDC/I announce that on December 15, 2019, Chuck Peddle passed away. We send our heartfelt condolences to his family, friends and the personal computer industry. We have lost a pioneer with Chuck’s passing."

https://wdc65xx.com/in-memoriam-of-chuck-peddle/

Discussion at Hacker News [ https://news.ycombinator.com/item?id=21847718 ]

#RetroComputing #ComputerHistory #Computers #Microprocessors #6502Processor #Personalities