Store Floating-Point Single with Update Shifted Indexed

X-Form

• stfsupsx FRS,RA,RB,SH

Pseudo-code:

EA <- (RA) + (RB)<<(SH+1)
MEM(RA, 4)<- SINGLE( (FRS) )
RA <- EA

Description:

Let the effective address (EA) be the sum of the contents of
register RB shifted by (SH+1), and the contents of register RA.

The contents of register FRS are converted to single
format (see page 142) and stored into the word in stor-
age addressed by RA.

EA is placed into register RA.

If RA=0, the instruction form is invalid.

Special Registers Altered:

None

Store Floating-Point Double with Update Shifted Indexed

X-Form

• stfdupsx FRS,RA,RB

Pseudo-code:

EA <- (RA) + (RB)<<(SH+1)
MEM(RA, 8)<- (FRS)
RA <- EA

Description:

Let the effective address (EA) be the sum of the contents of
register RB shifted by (SH+1), and the contents of register RA.

The contents of register FRS are stored into the dou-
bleword in storage addressed by RA.

EA is placed into register RA.

If RA=0, the instruction form is invalid.

Special Registers Altered:

None