hamster Posted February 3, 2014 Report Share Posted February 3, 2014 I'm sure everybody has already seen it, and it isn't really FPGA related except maybe for inspiration, but here a link to what looks to be the world's smallest 8086 software emulator... http://www.megalith.co.uk/8086tiny/ Link to comment Share on other sites More sharing options...
Jack Gassett Posted February 3, 2014 Report Share Posted February 3, 2014 Interesting! I bet Alvie could get that working on the ZPUino. Jack. Link to comment Share on other sites More sharing options...
alvieboy Posted February 3, 2014 Report Share Posted February 3, 2014 Depends on the speed you want We can surely have 640KB of memory.! Link to comment Share on other sites More sharing options...
Jack Gassett Posted February 3, 2014 Report Share Posted February 3, 2014 Hehe, lets get it running at 100Mhz! What was the speed of the original 8086 machines anyway, looks like the PS/2 models that used the 8086 chip ran at 8Mhz. Link to comment Share on other sites More sharing options...
Doug Wellington Posted February 3, 2014 Report Share Posted February 3, 2014 LOL, takes me back a while... My first x86 (1985ish) computer was 4.77 MHz. It was an 8088 though, not an 8086. (8088=8 bit external bus, 8086=16 bit.) I remember being the cool kid on the block with a 2400 baud modem and a 20MB hard disk! That wikipedia page with the PS/2 computers makes me laugh about a prank we pulled on my boss at the time - he got a PS/2 model 30 with two floppies, and the other guy in the shop and I took it all apart (in about a minute!) and then put it all back together, but without the two floppy drives. We put the two faceplates back on though, so when he came in and sat down and then inserted a floppy, it just fell into the case. The look on his face was great! Link to comment Share on other sites More sharing options...
james1095 Posted February 18, 2014 Report Share Posted February 18, 2014 Our first PC was an 8088 clocked at 4.77 MHz. The 8086 IIRC differed in that it had a 16 bit data bus while the 8088 had an 8 bit bus, but internally the core was more or less the same. My friend had a Compaq 8086 PC that ran at 7 MHz IIRC. I remember seeing some clocked as high as 8 MHz but I don't think they ever got beyond that, at least not officially. Link to comment Share on other sites More sharing options...
Doug Wellington Posted February 18, 2014 Report Share Posted February 18, 2014 I remember seeing some clocked as high as 8 MHz but I don't think they ever got beyond that, at least not officially. Yes, I had/have a Computerland (remember them?) BC88, with an 8MHz 8088. It was really interesting to me as it had a backplane, and in theory, you could upgrade to an 80286 by replacing the cpu card. Ubergeek! Couldn't play the game "Baby" with it at 8MHz though, had to turn off the "turbo" and go back to 4.77MHz... Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.