Emac Instruction Execution Times - Motorola ColdFire MCF5281 User Manual

2.12 EMAC Instruction Execution Times

Opcode <EA>
muls.w <ea>y, Dx
mulu.w <ea>y, Dx
muls.l <ea>y, Dx
mulu.l <ea>y, Dx
mac.w Ry, Rx, Raccx
mac.l Ry, Rx, Raccx
msac.w Ry, Rx, Raccx
msac.l Ry, Rx, Raccx
mac.w Ry, Rx, <ea>, Rw,
Raccx
mac.l Ry, Rx, <ea>, Rw,
Raccx
msac.w Ry, Rx, <ea>, Rw
msac.l Ry, Rx, <ea>, Rw,
Raccx
mov.l <ea>y, Raccx
mov.l Raccy,Raccx
mov.l <ea>y, MACSR
mov.l <ea>y, Rmask
mov.l <ea>y,Raccext01
mov.l <ea>y,Raccext23
mov.l Raccx,<ea>x
mov.l MACSR,<ea>x
mov.l Rmask, <ea>x
mov.l Raccext01,<ea.x
mov.l Raccext23,<ea>x
1
Effective address of (d16,PC) not supported
2
Storing an accumulator requires one additional processor clock cycle when saturation is enabled, or fractional
rounding is performed (MACSR[7:4] = 1---, -11-, --11)
MOTOROLA
Table 2-16. EMAC Instruction Execution Times
Rn (An)
4(0/0) 6(1/0)
4(0/0) 6(1/0)
4(0/0) 6(1/0)
4(0/0) 6(1/0)
1(0/0) —
1(0/0) —
1(0/0) —
1(0/0) —
— 2(1/0)
— 2(1/0)
— 2(1/0)
— 2(1/0)
1(0/0) —
1(0/0) —
5(0/0) —
4(0/0) —
1(0/0) —
1(0/0) —
2
1(0/0) —
1(0/0) —
1(0/0) —
1(0/0) —
1(0/0) —
Chapter 2. ColdFire Core
EMAC Instruction Execution Times
Effective Address
(An)+ -(An) (d16,An)
6(1/0) 6(1/0) 6(1/0)
6(1/0) 6(1/0) 6(1/0)
6(1/0) 6(1/0) 6(1/0)
6(1/0) 6(1/0) 6(1/0)
— — —
— — —
— — —
— — —
2(1/0) 2(1/0) 2(1/0)
2(1/0) 2(1/0) 2(1/0)
2(1/0) 2(1/0) 2(1/0)
2(1/0) 2(1/0) 2(1/0)
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
(d8,An,X
xxx.wl
n*SF)
7(1/0) 6(1/0)
7(1/0) 6(1/0)
— —
— —
— —
— —
— —
— —
1
— —
1
— —
1
— —
1
— —
— —
— —
— —
— —
— —
— —
— —
— —
— —
— —
— —
#xxx
4(1/0)
4(1/0)
—
—
—
—
—
—
—
—
—
—
1(0/0)
—
5(0/0)
4(0/0)
1(0/0)
1(0/0)
—
—
—
—
—
2-27