Here's the roundup of our posts for April (see also our previous roundups and our profile page. Comments welcome on this thread! Check the original posts on gplus for comments too.)

2016-04-01 The SY6516: a 6502 variant which never existed - not an April Fool, but a marketing mis-step by Synertek.


2016-04-08 Nintendo's choice of the 6502 for the Famicom, later to be the NES - at a time when Z80 was the obvious and standard choice in Japan.


2016-04-15 The insides, and the expandability, of Acorn's Atom computer - no custom chips in this one, runs at 1MHz or in modern rebuilds up to 4MHz.


2016-04-22 The extraordinary longevity of the Jolt and SuperJolt, very early single chip computers.


2016-04-29 The ever-popular sound synthesizer chip, the SID, in original and modern versions.

Here's the roundup of our posts for May (see also our previous roundups and our profile page. Comments welcome on this thread! Check the original posts on gplus for comments too.)


2016-05-06 Atari 2600 as an Enigma machine


2016-05-13 Guest post - Video chips for microcomputers, by Jac Goudsmit


2016-05-16 MOnSter 6502 - a foot-square PCB with MOSFET level recreation of visual6502's netlist


2016-05-20 Transistor-level 6502 netlist simulated in FPGA and running at real time speed, in 2600, VIC20, Apple II



2016-05-27 A couple of bargains from a house clearance: a C64 and an Atari 400

Here's the roundup of our posts for June (see also our previous roundups and our profile page. Comments welcome on this thread! Check the original posts on gplus for comments too.)

2016-06-03
Some viral games coded up for 6502 (and 65816) - details and links in the captions to each photo. A version of Gabriele Girulli's 2048 game, a version of Flappy Bird (hand-entered as an exploit to Super Mario World on the SNES (65816 inside) by Seth Bling in just 300 bytes) and finally, a version of Tetris in a single line of BBC Basic.



2016-06-10
A glossy book on the VIC20, on kickstarter and funded in days, by Giacomo Vernoni who runs oldcomputr.com.



2016-06-17
The fastest 6502 you're likely to connect to your computer - running at 150MHz! Over on Stardot, a second processor solution running baremetal ARM machine code on a Raspberry Pi. (Over 200MHz now.)




2016-06-24
A single-board 6502 computer with a lovely front panel - it can also easily drive an LCD. It has an 8 digit seven-segment display, a 36 key keypad, 32k RAM and 32k EPROM, an expansion connector, I/O lines and indicator LEDs.

The article says the removed the decimal mode by removing 5 transistors but this is wrong. They removed a wire instead. The decimal flag is still there, but setting it has no effect other than reading it back with the 'php' instruction.

Umm, we've seen the chip under the microscope, and we've seen the 5 missing transistors. They are missing by virtue of some polysilicon missing - perhaps that's what you mean by 'removed a wire'?
- http://visual6502.org/wiki/index.php?ti ... 27_RP2A03G

Oh okay. I guess I was wrong then.