Re: [sdcc-devel] Question from ...

[Michael H. <mic...@ju...>]

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On 18 Dec 2001, Russel Winder wrote:

> ... a person learning the source code prior to working on it.
>
> SDCCglue.c (procedure glue) appears to have 8051 machine code embedded
> in it, which seems curious if this code is supposed to be target
> agnostic.  Clearly the z80 port avoids this bit of code in some way.

The mcs51 specific code is the wrapper/startup glue.  The z80 port has the
port 'ommit_glue' (?) flag set so all of that code is bypassed.

> Also I note that the way in which constant array data is handled is
> different in the z80 and 8051 cases.  I appreciate that the 8051 is more
> recent but could/should the code generated be the same?

I think that you are refering to the .dw x/.db x,x seperation?  That's
due to a difference between Sandeep and myself on how those type of things
should be generated, so we ended up making the behaviour depend on a flag.

- -- Michael

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