Re: [TUHS] user struct on SYSIII / V7

On Nov 13, 2015, at 2:38 PM, Brantley Coile <brantleycoile(a)icloud.com> wrote: For performance reasons an assembly symbol "u" was defined to be a fixed address. That allowed us to use constructions like u.u_procp to generate a single address. It was very fast. Does this help? iPhone email > On Nov 13, 2015, at 2:33 PM, Oliver Lehmann <lehmann(a)ans-netz.de> wrote: > > > Oliver Lehmann <lehmann(a)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). > _______________________________________________ > TUHS mailing list > TUHS(a)minnie.tuhs.org > https://minnie.tuhs.org/mailman/listinfo/tuhs