[Simh] Cross-assemblers, cross-compilers: success! (so far)

SPC spedraja at gmail.com
Wed Jul 25 05:29:22 EDT 2012


Great, Jordi. At least from me, all advances in this matter are
welcome (to use in my own PDP-11 if it would be possible).

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2012/7/25 Jordi Guillaumes i Pons <jg at jordi.guillaumes.name>:
> First of all, thanks for the replies to my post asking for a PDP-11 cross-assembler for linux/unix environments.
>
> I've been playing with some of the suggestions I got, and finally I have decided to try to build a GNU toolchain configured as cross-compiler. Although it has some issues (the most annoying is that the default script used by the linker has a syntax error!), it can be used and it works. I've also written a small program to convert from the a.out format generated by the "ld" linker to the "paper tape" format that the SIMH load command expects.
>
> To cut the story short, I've been able to write, compile, link and execute a small "hello world" program over a bare metal (simulated) PDP-11. I've written a blog post about that small acomplishment, where if you are interested you can see the steps I followed and you can find the small utility I've written.
>
> The URL is http://ancientbits.blogspot.com.es/2012/07/programming-barebones-pdp11.html
>
>
>
> Jordi Guillaumes i Pons
> jg at jordi.guillaumes.name
> HECnet: BITXOV::JGUILLAUMES
>
>
>
>
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