Category Archives: 65c02

Chuck Peddle, 1937 – 2019

Chuck Peddle, the main designer of the 6502, has passed away on Dec. 15th, 2019. Peddle was one of the engineers that developed the 6800 at Motorola. He later went to MOS in order to implement his vision of an … Continue reading

Posted in 6502, 65c02, assembly, basic, urschleim, wdc

V9958 – “The WAIT” – investigation of the CPU/VDP /WAIT interface

… on the way back to munich, we had some time to do a little code review of our gfx library. thinking about the cpu to video chip timings and again read the well known datasheets of the V9938/V9958. suddenly … Continue reading

Posted in 64k, 6502, 65c02, 9918, Allgemein, assembly, cpu, experiment, nop, steckschwein, timing, tms9929, V9958, vdp, video, video chip, waitstate

TMS9929 – Wir wollen was sehen…

… und zwar auf einem Bildschirm! Aber wie stellt man sowas an?! Nun, wir schauen uns um, was Ende der 70-er bzw. Anfang der 80-er Jahre Stand der Technik war und was sich mit ├╝berschaubarem Aufwand an eine 6502 CPU … Continue reading

Posted in 4116, 4264, 65c02, 9918, dram, tms9929, vdp, video