[guss-hackers] Progress!

[Johan Rydberg]

Hi,

I would just like to let you know that I'm currently rewriting parts 
(major) parts
of GUSS.  There are several reasons for this.  Here are some of them;

 1) The old code was to messy and contained several bugs.

 2) Add a RTL-stylish front-end for writing machine descriptions.  The 
syntax
    is based upon GCC's machine descriptions, which would make it 
easier for
    people with knowledge of GCC to implement a target.

 3) Add and verify support for 64-bit targets.

 4) Embedd libguile into the simulator, making it easier to extend the 
simulator.

And of course the usual reasons;

 4) The code was to ugly for me to look at,

 5) It was not fast enough!

The new code is not commited to the CVS repository, and it will 
probably take some
time before it is done (since the lack of interest, and my lack of 
internet connection).

As reference targets I use an OpenRISC 1000 implementation (OpenRISC 
1200) and
a 64-bit MIPS (MIPS 4600).  Currently the targets just can execute 
simple insns,
but as soon as the simulator core gets somewhat stable they will be 
extended.