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Instruction Descriptions
FMOVE
to FPIAR
FMOVE
to FPIAR
Move to the Floating
Point Instruction Address Register
Source → FPIAR
Operation:
Assembler syntax: FMOVE.L <ea>y,FPIAR
Attributes:
Format = longword
Description: Loads the floating-point instruction address register from an effective
address. Exceptions are not taken upon execution of this instruction.
FPSR:
Not affected.
Instruction
Format:
15
14
13
12
11
10
9
8
7
6
1
1
1
1
0
0
1
0
0
0
5
4
3
2
0
0
0
0
1
0
0
0
0
0
Source Effective Address
Mode
1
1
0
0
Register
0
0
0
0
Instruction field:
• Effective Address field—Specifies the addressing mode, <ea>y, shown in the
following table:
Addressing Mode
Mode
Register
Addressing Mode
Mode
Register
Dy
000
reg. number:Dy
(xxx).W
—
—
Ay
001
reg. number:Ay
(xxx).L
—
—
(Ay)
010
reg. number:Ay
# <data>
—
—
(Ay)+
011
reg. number:Ay
–(Ay)
100
reg. number:Ay
(d16,Ay)
101
reg. number:Ay
(d16,PC)
111
010
(d8,Ay,Xi)
—
—
(d8,PC,Xi)
—
—
Chapter 7. Floating-Point Unit (FPU) User Instructions
7-29