[TUHS] user struct on SYSIII / V7

[Oliver Lehmann]

Hi,

I found out so far, that %3e00.... means, that the data is put on
segment 62 (0x3e). Regarding to the Z8000 ASM handbook, segmented
adresses are notated as <<segment>>offset, so in my case
<<62>>%F600 - but of course it does not work and the assembler
yields and error :(


Oliver Lehmann <lehmann at ans-netz.de> wrote:

> Oliver Lehmann <lehmann at ans-netz.de> wrote:
>
>> u module
>> $segmented
>> $abs %F600
>>
>>  global
>>
>> _u array [%572 byte]
>>
>> end u
>
> By any way - is here someone on the list understanding Z8000 PLZ/ASM? ;)
>
> The problem is, that "u" must be available in the address space on this
> location for the kernel to function correctly:
>
> # define UBASE             0x3E00F600      /* kernel virtual addr of  
> user struct */
>
> And with the above ASM code, it is placed on 0x0100F600. I also tried
> of course $abs 0x3E00F600 but it makes no difference. It is always
> placed at 0x0100F600 and I have zero clue why
>
> the original object from the system:
>
> #67 nm /usr/sys/conf/u.o
> 3e00f600 A _u
> 01000000 s u_d
>     0000 s u_p
>
>
> my object generated from my u.s:
>
> #68 nm u.o
> 0100f600 A _u
> 01000000 s u_d
>     0000 s u_p
>
> Somehow I need to get the address right.... This is why I wanted to
> look up how the original SYSIII or V7 was doing it (even if the asm
> would be of course completely different).
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