I/O addresses for the 8080 come to mind. Dwight ________________________________ From: Chuck Guzis via cctalk <cctalk@classiccmp.org> Sent: Sunday, November 3, 2024 3:36 PM To: Mike Katz via cctalk <cctalk@classiccmp.org> Cc: Chuck Guzis <ccl...@sydex.com> Subject: [cctalk] Re: Self modifying code was HCF
On 11/3/24 14:48, Mike Katz via cctalk wrote: > Though not Halt and Catch Fire you guys are forgetting the joy of self > modifying code. Indeed, this was the *only* way to do things on early first- and second-generation systems. Even the lowly 1620 CADET, without the optional indirect addressing feature mandated use of code modification. --Chuck