Z23-Form
-* stdupsx RS,RA,RB
+* stdupsx RS,RA,RB,SH
Pseudo-code:
- EA <- (RA) + (RB)
+ EA <- (RA) + (RB)<<(SH+1)
ea <- (RA)
MEM(ea, 8) <- (RS)
RA <- EA
Description:
- Let the effective address (EA) be the sum (RA)+ (RB).
+ Let the effective address (EA) be the sum of the contents of
+ register RB shifted by (SH+1), and the contents of register RA.
(RS) is stored into the doubleword in storage addressed by RA.