User guide

SmartBook for Renesas R8C/Tiny Microcontrollers

www.MightyMicons.com

controllers sport a special instruction to save many

registers using a single instruction. The instruction does

the data transfer to and from the stack area in less time

with minimum program code.

There is a complementary instruction, POPM, available to

retrieve the registers from the stack area.

3.14 Store Context (STCTX):

This context storing instruction does lots of work in the background to

save the designers large amount of attention seeking time during the

interrupt manipulating operations. Basically, this instruction takes care of

managing context details of about 256 tasks without much inputs from the

designers. Because of its versatile nature, it simplifies the complicated task

management exercise an easy and interesting one. Since it does all this using

less code, the speed of the interrupt manipulation becomes faster.



The controllers sport a

special instruction,

PUSHM to save many

registers using a single

instruction.

 

 STCTX

instruction takes

care of managing context details of

about 256 tasks without much in-

puts from the designers. It sim-

plifies the complicated task

management exercise an

easy and interest-

ing one.