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10-34 M68040 USER’S MANUAL MOTOROLA
10.7.2 Integer Unit Support Timings (Concluded)
FRESTORE <ea>*
Addressing Idle or Null Short Long
Mode <ea>
Calculate Execute <ea>
Calculate Execute <ea>
Calculate Execute
FPn ——————
Dn ——————
An ——————
(An) 13 1L + 12 26 1L + 25 40 1L + 39
(An)+ 13 1L + 12 26 1L + 25 40 1L + 39
–(An) ——————
(d 16,An) 13 1L + 12 26 1L + 25 40 1L + 39
(d 16,PC) ——————
(xxx).W, (xxx).L 14 1L + 12 27 1L + 25 41 1L + 39
#<xxx> ——————
(d 8,An,Xn) 14 14 27 27 41 41
(d 8,PC,Xn) ——————
(An,Xn) 16 1L + 14 29 1L + 27 43 1L + 41
(bd,An,Xn) 17 1L + 15 30 1L + 28 44 1L + 42
([bd,An,Xn]) 20 1L + 19 33 1L + 32 47 1L + 46
([bd,An,Xn],od) 21 1L + 19 34 1L + 32 48 1L + 46
([bd,An],Xn) 21 3L + 18 34 3L + 31 48 3L + 45
([bd,An],Xn,od) 22 3L + 19 35 3L + 31 49 3L + 45
*Timings are for an idle floating-point unit.
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