On Monday, August 22, 2016 at 8:08:42 PM UTC+1, Udo Munk wrote:
> Li-Chen Wang published a Tiny BASIC for the 8080 in Dr. Dobbs magazine
> Volume 1 Nr. 5 in 1976. This was the famous Copyleft version in response
> to the Gates letter.
>
> I was not able to find the source for the original anywhere, but an archived
> PDF of the Dr. Dobbs issue with a listing of the BASIC interpreter.
>
> Unfortunately Li-Chen had no 8080 assembler, so he used the Macro Assembler
> from some Mainframe with a Macro set to produce 8080 object code.
>
> Besides that the syntax makes my eyes bleed, the Macro set used is not available.
> So I converted the source to Intel 8080 Macro Assembler syntax, the assembler is
> available and so the source can be modified and the object file build, hope that's
> in the spirit of Li-Chen.
>
> The original program is for the Altair 8800 with 88SIO Rev. 0, you might need
> to modify it for the machine you use. I/O is done in 2 subroutines only, so that's
> very easy.
>
> I compared the hex bytes against the ones in the Dr. Dobbs listing, matches, so
> the program is correct, typos in the comments are my fault.
>
> All relevant files are available at:
> http://www.autometer.de/unix4fun/z80pack/ftp/altair/
>
> There was a 2.0 version, also translated to 8080 mnemonics by Roger Rauskolb,
> published in Interface Age December 1976 issue. I cannot find the source file
> nor the archived magazine, so if anyone has this version I would like a copy,
> thanks in advance.