Bit Manipulation (Static Bit Count) Execution Times; Bit Field Execution Times - Motorola M68060 User Manual

Instruction Execution Timing
Table 10-15. Bit Manipulation (Static Bit Count) Execution Times
Instruction Size
Dn
BCHG Byte —
" Long 1(0/0) —
BCLR Byte —
" 1(0/0) —
BSET Byte —
" Long 1(0/0) —
BTST Byte —
" Long 1(0/0) —
1
Add 2(1/0) cycles to the (bd,An,Xi*SF) time for a memory indirect address.
Instruction
BFCHG (< 5 Bytes) 8(0/0)
BFCHG(= 5 Bytes) 12(0/0) — 12(4/2)
BFCLR (< 5 Bytes) 8(0/0)
BFCLR(= 5 Bytes) 12(0/0) — 12(4/2)
BFEXTS(< 5 Bytes) 6(0/0)
BFEXTS(= 5 Bytes) 8(0/0)
BFEXTU(< 5 Bytes) 6(0/0)
BFEXTU(= 5 Bytes) 8(0/0)
BFFFO(< 5 Bytes) 9(0/0)
BFFFO(= 5 Bytes) 11(0/0) — 11(2/0)
BFINS (< 5 Bytes) 6(0/0)
BFINS(= 5 Bytes) 6(0/0)
BFSET(< 5 Bytes) 8(0/0)
BFSET(= 5 Bytes) 12(0/0) — 12(4/2)
BFTST (< 5 Bytes) 6(0/0)
BFTST(= 5 Bytes) 8(0/0)
1
The type of offset and width (static, dynamic) does not affect the execution time.
2
Add 2(1/0) cycles to the (bd,An,Xi*SF) time for a memory indirect address.
10-20
A
(An) (An)+ –(An)
n
— 1(1/1) 1(1/1) 1(1/1)
— — —
— 1(1/1) 1(1/1) 1(1/1)
— — —
— 1(1/1) 1(1/1) 1(1/1)
— — —
— 1(1/0) 1(1/0) 1(1/0)
— — —
Table 10-16. Bit Field Execution Times
Dn An (An) (An)+ –(An) (d16,An) (d8,An,Xi∗SF) (bd,An,Xi∗SF)
— 8(2/1) —
—
— 8(2/1) —
—
— 6(1/0) —
— 8(2/0) —
— 6(1/0) —
— 8(2/0) —
— 9(1/0) —
—
— 6(1/1) —
— 6(2/2) —
— 8(2/1) —
—
— 6(1/0) —
— 8(2/0) —
M68060 USER'S MANUAL
Destination
(d16,An) (d8,An,Xi∗SF)
2(1/1) 2(1/1)
— —
2(1/1) 2(1/1)
— —
2(1/1) 2(1/1)
— —
2(1/0) 2(1/0)
— —
Destination
— 8(2/1) 9(2/1)
— 12(4/2) 13(4/2)
— 8(2/1) 9(2/1)
— 12(4/2) 13(4/2)
— 6(1/0) 7(1/0)
— 8(2/0) 9(2/0)
— 6(1/0) 7(1/0)
— 8(2/0) 9(2/0)
— 9(1/0) 10(1/0)
— 11(2/0) 12(2/0)
— 6(1/1) 7(1/1)
— 6(2/2) 7(2/2)
— 8(2/1) 9(2/1)
— 12(4/2) 13(4/2)
— 6(1/0) 7(1/0)
— 8(2/0) 9(2/0)
1
(bd,An,Xi∗SF) (xxx).WL
3(1/1) 2(1/1)
— —
3(1/1) 2(1/1)
— —
3(1/1) 2(1/1)
— —
3(1/0) 2(1/0)
— —
1
2
(xxx).WL
10(2/1) 9(2/1)
14(4/2) 13(4/2)
10(2/1) 9(2/1)
14(4/2) 13(4/2)
8(1/0) 7(1/0)
10(2/0) 9(2/0)
8(1/0) 7(1/0)
10(2/0) 9(2/0)
11(1/0) 10(1/0)
13(2/0) 12(2/0)
8(1/1) 7(1/1)
8(2/2) 7(2/2)
10(2/1) 9(2/1)
14(4/2) 13(4/2)
8(1/0) 7(1/0)
10(2/0) 9(2/0)
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