PATCH: Display more information when ?fcode-verbose enabled

[Mark Cave-Ayland]

Hi all,

Please find the enclosed patch which enhances the information displayed 
on the console when ?fcode-verbose is enabled and the Fcode evaluator is 
running. This is proving to be useful whilst trying to get Qemu to boot 
a SPARC64 image, and so I think it should be added to the repository.

This patch adds the following information to the console display:
    - The current address of the Fcode evaluator
    - An optional (compile) prefix if in compile mode
    - Any strings specified by b(") with a (const) prefix
    - Any fcode numbers with a (fcode#) prefix
    - Any branch offsets with an (offset) prefix

An example output from this patch gives output similar to the following 
when trying to boot a SPARC64 disk image:

...
...
4ff4 : named-token [ 0xb6 ]
        (const) get-devname
        (fcode#) 87f
5003 : b(:) [ 0xb7 ]
5005 : (compile)  [ 0x87c ]
5006 : (compile) b(") [ 0x12 ]
        (const) bootpath
5011 : (compile)  [ 0x87e ]
5012 : (compile) b?branch [ 0x14 ]
        (offset) 1b
5015 : (compile) b(") [ 0x12 ]
        (const) Can't find bootpath
502a : (compile) type [ 0x90 ]
502c : (compile) abort [ 0x216 ]
502d : (compile) b(>resolve) [ 0xb2 ]
502f : (compile)  [ 0x87d ]
5031 : (compile)  [ 0x802 ]
5032 : (compile) b(;) [ 0xc2 ]
5034 :  [ 0x87f ]
Can't find bootpath
byte-load: exception caught!

0 >

This is much more helpful when it comes to tracing the results of fcode 
evaluation and trying to work out why a particular piece of code is failing.

ATB,

Mark.

[Blue Swirl]

On 4/13/09, Mark Cave-Ayland  wrote:
> Hi all,
>
> Please find the enclosed patch which enhances the information displayed on
> the console when ?fcode-verbose is enabled and the Fcode evaluator is
> running. This is proving to be useful whilst trying to get Qemu to boot a
> SPARC64 image, and so I think it should be added to the repository.
>
> This patch adds the following information to the console display:
>         - The current address of the Fcode evaluator
>         - An optional (compile) prefix if in compile mode
>         - Any strings specified by b(") with a (const) prefix
>         - Any fcode numbers with a (fcode#) prefix
>         - Any branch offsets with an (offset) prefix

Applied, thanks a lot!