Forums before death by AOL, social media and spammers... "We can't have nice things"
|    alt.os.development    |    Operating system development chatter    |    4,255 messages    |
[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]
|    Message 3,290 of 4,255    |
|    mutazilah@gmail.com to wolfgang kern    |
|    Re: segmentation    |
|    08 Oct 22 04:42:48    |
      From: muta...@gmail.com              On Saturday, October 8, 2022 at 1:57:22 PM UTC+8, wolfgang kern wrote:       > On 07/10/2022 22:42, muta...@gmail.com wrote:       > > On Friday, October 7, 2022 at 6:48:02 PM UTC+8, Joe Monk wrote:       > >> "Right, and what is preventing an 8086 tiny model program       > >> from running on an 8080-replacement? "       > >> 8086 is source compatible with 8080. That means an 8086 can run 8080       instructions - but the reverse is not true.       > >       > > There was a translation program required to       > > convert 8080 source into 8086 source.       > yeah, but only to improve performance              That suggests to me that if performance       is not an issue, then 8080 source code       can be compiled into 8086 instructions.              But I guess those 8086 instructions may be       different from the 8080 instructions.              Which is not what I am after.              Regarding z80 etc - if they could       have been produced in the 8080       timeframe for similar to 8080 cost,       that would be fine - so long as they are       compatible with a subset of 8086       tiny memory model.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]
(c) 1994, bbs@darkrealms.ca