OpenEuphoria

Re: Writing an assembler

• Posted by Pete Lomax <petelomax at blueyonder.co.uk> Feb 22, 2007
• 535 views

Robert Craig wrote:
>   * assume initially that all branches can be short
Thanks for replying. It is interesting that you and Tomasz Grysztar (author of
fasm) went that way whereas I instinctively thought "assume long".

Now I've thought about it a bit more, (thanks to everyone who responded) I think
I might try three-address-code-plus-length-sib-modrm-etc, but use simple
subscripts rather than offsets or addresses in the TAC pointing to a secondary
sequence with actual addresses.

Mind you, now that I've thought about it a bit more, I've drastically scaled
down what it is I actually want to achieve here )

CChris wrote:
>create a record per instruction. 
Hmm, perhaps my attempts to avoid just that befuddled me ;)

mic _ wrote:
> have fun writing the linker. ... iirc it got pretty ugly ...
I know rva's are tricky, but quite doable. I'll have a look at nqa, ta.

Rob wrote:
>I later learned that "Abandon Hope..." was the inscription
>at the gates of Hell, according to Dante's Divine Comedy.
I first came across that in "adventure" on a pdp-11 unix box, I think just after
getting through the "maze of twisty little passages, all alike" ...
... and I definately dropped a few grade points that term.

Regards,
Pete