50g sd card funciton

[BlackMi]

(10-01-2018 04:34 AM)DavidM Wrote:  

(09-30-2018 02:24 PM)BlackMi Wrote:  wherer to find the detials.
the instruction
"accesssd" in hp advance user's reference manual.
how to use it ?

ACCESSSD is one of the additional "Saturnator" opcodes that are available to Saturn assembly language programmers when targeting one of the ARM-based RPL calculators.

IIRC, a selector needs to be loaded into the P register before issuing that opcode, but I've never seen any official documentation for the various options it recognizes.

There's a couple of references to it in the 50g AUR, and several posts in the comp.sys.hp48 newsgroup, but I'm afraid none of that really shows what all the options are.

If there's any published documentation for it, I've never been able to find it in the usual places. If Claudio L. happens to see this post, perhaps he can share what he knows about the various parameters for ACCESSSD since I'm pretty sure he spent some time digging around to uncover some of its secrets in the past.

Thank you very much for your kindness!
There are much more new Saturn instrctions for ARM-based Calculators without details.
Hope someone can offer documents for those instructions.