[sdcc-devel] sdcc assembler and linker activity

[Borut R. <bor...@si...>]

Hi sdcc developers,

as I already mentioned in previous postings that I'm working on sdcc 
assembler and linker unification and synchronization with asxxxx version 
5.0.

*Unification*

My goal is to resemble the asxxxx directory structure: common files in 
asxxsrc and linksrc (currently named link) directories and targets 
dependent files in separate directories. I already achieved this quite 
well for sdcc assembler, but the linker is more problematic: asxxxx has 
a single target independent linker (aslink), while sdcc has a separate 
linker for each platform.

*Polymorphism

*I'll solve this problem by different behavior of sdcc linker, depending 
of the executable name. The intermediate goal is to have  single linker 
executable which will behave differently depending of it's file name:

    * sdld or sdld8051 - 8051 family linker, including ds390 and ds400
      targets
    * sdld6080 - hc08 platform, probably with cs08 extensions from Gary
      Osborn
    * sdldz80 - z80 linker
    * sdldgb - gb linker

The final goal is to have one target independent sdld executable.

My goal is also that both asdcc assembler and linker resembles the 
original asxxxx functionality when called with original asxxxx names: 
asXXXX and aslink.

*Synchronization
*
I'll do the synchronization with the latest asxxxx version 5.0 in small 
steps:

    * sync with asxxxx 1.75
    * sync with asxxxx 2.0
    * sync with asxxxx 3.11
    * sync with asxxxx 4.11
    * sync with asxxxx 5.0

**Current status is somewhere between 1.75 and 2.0.

Borut