Zero Page Info

What does &F81 do in the Zero Page?

It’s just after the error flag to stop MessageTrans recursion, so it’ll be a flags byte used by “portable” (the portable module?).

https://www.riscosopen.org/viewer/view/castle/RiscOS/Sources/Kernel/hdr/KernelWS?rev=4.30#l1550

As Rick states, its PortableFlags

Thanks for the pointers. (vrpc)

Seems :-

SYS XPortable_ReadFeatures TO ,Z%
(Any info on the this call?)

A%=Z%

Then code called to do:-

str R0,&F81 for RO4.02

(; Gets set in PortableFlags when we’ve switched to slow speed)

(What is the correct RO5.xx method?)

Thanks

[edit1] that was (TO ,Z%)

Any info on the this call?

Portable_ReadFeatures