On Tuesday, February 28, 2023 at 12:35:23 PM UTC-5, Roger Hanscom wrote:
> Hi Bill,
> >> Does anyone still use the old 8080 / 8085? Is there any point writing software especially to run on these old processors
> >> (as opposed to Z80 family)?
> Another thing to think about is that there are emulators that only run 8080 code. For example, COM2X that runs with CP/M 68K.
> I treasure applications that are written for the 8080. They are usable with CP/M 68K and provide additional capability for it.
> >> Has anyone published benchmarks comparing CP/M compilers?
> I invested a fair amount of effort in getting a number of legacy compilers working on my CP/M 2.2 SBC (20 MHz). As I remember they
> included C, Pascal, FORTRAN, BASIC, and even PL/I. I used them to compile one particular application (ASCII display of a Mandelbrot),
> and compare execution times and the size of the executables. I tried to post the results on the Vintage Computer Forum, and it was
> greeted with yawns.
>
> From failing memory, Hi-Tech C came out best. I was surprised that Turbo Pascal didn't do better. Of course, I regard Pascal as "begin....end"
> hell.
>
> Roger
CP/M 68K doesn't run 8080 code. It runs Motorola 68000 code, doesn't it?

On Saturday, March 18, 2023 at 4:54:59 AM UTC-7, Tom Lake wrote:
.....<snip>.....
> CP/M 68K doesn't run 8080 code. It runs Motorola 68000 code, doesn't it?

Sure. But there's a great 8080 emulator that runs on CP/M68K that runs 8080 code. It's called "COM2X" and was written by Jim Cathey (I think that's right?). You just point it to the .COM file like so: COM2X MBASIC.COM TEST.BAS, and it will bring up classic 8080 MBASIC and run TEST.BAS. It's a great piece of work. I only wish it had been written to emulate Z80, but it doesn't. *frown*

Roger