Hitachi SH7750 Programming Manual page 169

High-performance risc engine superh (sh) 32-bit risc mcu/mpu series
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40. Double-precision FCMP: 2 issue cycles
FCMP/EQ,FCMP/GT
D
I
41. Double-precision FDIV/SQRT: 1 issue cycle
FDIV, FSQRT
D
I
42. FIPR: 1 issue cycle
I
D
43. FTRV: 1 issue cycle
I
D
: Cannot overlap a stage of the same kind, except when two instructions are
Notes:
??
executed in parallel.
: Locks D-stage
D
: Register read only
d
: Locks, but no operation is executed.
??
: Can overlap another f1, but not another F1.
f1
Figure 8.2 Instruction Execution Patterns (cont)
F1
FS
F2
D
F1
F2
F1
F2
FS
d
F1
F2
F3
F0
F1
F2
F0
F1
F2
d
F0
F1
F0
d
d
FS
F1
F2
F1
FS
FS
FS
F2
F1
FS
F2
F0
F1
F2
Rev. 2.0, 03/99, page 155 of 396
FS
F2
FS
F1
F2
FS
FS

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