Register Association Table
26/43
reserved
reserved
free
a
free
b
0
1
2
3
4
5
contents
reg.
Structure of a RAT:
Contents:
Textové pole: …
…
Textové pole: …
…
reserved
free
vari
• reversed for some operation system purposes
• vari = name of variable
• Every use of a register updates RAT.
• RAT indicates the current contents of each
  register