Texas Instruments TMS320C3x 사용자 설명서

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MPYF3||ADDF3
Parallel MPYF3 and ADDF3
13-152
 
Example
MPYF3
*AR5++(1),*
– –
AR1(IR0),R0
||
ADDF3
R5,R7,R3
Note:
Cycle Count
One cycle if:
-
src3 and src4 are in internal memory
-
src3 is in internal memory and src4 is in external memory
Two cycles if:
-
src3 is in external memory and src4 is in internal memory
-
src3 and src4 are in external memory
For more information see Section 8.5, 
Clocking Memory Accesses, on page
8-24.
Before Instruction
After Instruction
R0
00 0000 0000
R0
04 6718 0000
R3
00 0000 0000
R3
08 2020 0000
R5
07 33C0 0000
R5
07 33C0 0000
R7
07 0C80 0000
R7
07 0C80 0000
AR1
80 98A8
AR1
80 98A4
AR5
80 98C5
AR5
80 98C6
IR0
4
IR0
4
LUF
0
LUF
0
LV
0
LV
0
UF
0
UF
0
N
0
N
0
Z
0
Z
0
V
0
V
0
C
0
C
0
Data memory
8098C5h
34C0000
8098C5h
34C0000
8098A4h
1110000
8098A4h
1110000
2.88867188e+01
6.281250e+01
2.265625e+00
3.20250e+02
1.79750e+02
1.4050e+02
1.2750e+01
1.79750e+02
1.4050e+02
1.2750e+01
2.265625e+00