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MC68060 Instructions
D-18 M68060 USER’S MANUAL MOTOROLA
FSAVE Save Internal Floating-Point State FSAVE
(MC68060 only)
Floating-Point Status Register: Not affected.
Instruction Format:
Instruction Field:
Effective Address field—Determines the addressing mode for the state frame. Only pre-
decrement or control alterable addressing modes can be used as listed in the following
table:
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1111001100 EFFECTIVE ADDRESS
MODEREGISTER
Addressing Mode Mode Register Addressing Mode Mode Register
Dn (xxx).W 111 000
An (xxx).L 111 001
(An) 010 reg. number:An #<data>
(An) +
–(An) 100 reg. number:An
(d16,An) 101 reg. number:An (d16,PC) — —
(d8,An,Xn) 110 reg. number:An (d8,PC,Xn) — —
(bd,An,Xn) 110 reg. number:An (bd,PC,Xn)
([bd,An,Xn],od) 110 reg. number:An ([bd,PC,Xn],od)
([bd,An],Xn,od) 110 reg. number:An ([bd,PC],Xn,od)
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