tag:blogger.com,1999:blog-8233044822521774128.post6741927723081261220..comments2022-12-28T00:27:59.234-08:00Comments on Ancient Computing: A 6502 CPU for the RC2014 - SoftwareBen Chonghttp://www.blogger.com/profile/08849700495830068771noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-8233044822521774128.post-4093542330256201682018-02-08T18:44:17.596-08:002018-02-08T18:44:17.596-08:00What about a small device like PIC16Fxxxx to simul...What about a small device like PIC16Fxxxx to simulate the "hardwired" UART, as Mostek AY-Devices are real old things, hard to find and easy to ruin...<br /><br />Together with some CPLD for adress-decoding and "house-keeping" intelligent Controllers would take over lots of time intensive jobs, especially in serial communications and in Audio/Video field, helping the main processors to speed up to a real usable speedrange. PC and Unix-workstations did the same in the 90ties to speed up graphics output, and even today the processor on a high-end "gaming" video-card is much stronger than the main cpu...<br /><br />Also on SW-Level it is much easier to emulate elder chipsets than in HW, e.g. Network-Cards for ethernet or sound output (a soft 6581 "SID" will run on either a small FPGA or a DSPic device in the 5$ range and with less pins than the original device (if wanted so)).<br /><br />And after a while i guess, you will end up in LVDS-signalling and multi-FPGA instead of 8Bit-Busses paralleled... ;o)Anonymoushttps://www.blogger.com/profile/02869377597550143640noreply@blogger.com