2-10 M68000 8-/16-/32-BIT MICROPROCESSOR USER’S MANUAL MOTOROLA
shifted by, rotated by — The source operand is shifted or rotated by the number of
positions specified by the second operand
Notation for single-operand operations:
~<operand> — The operand is logically complemented
<operand>sign-extended — The operand is sign-extended, all bits of the upper
portion are made equal to the high-order bit of the lower
portion
<operand>tested — The operand is compared to zero and the condition
codes are set appropriately
Notation for other operations:
TRAP — Equivalent to Format/Offset Word → (SSP); SSP–2 →
SSP; PC → (SSP); SSP–4 → SSP; SR → (SSP);
SSP–2 → SSP; (vector) → PC
STOP — Enter the stopped state, waiting for interrupts
If <condition> then — The condition is tested. If true, the operations after "then"
<operations> else are performed. If the condition is false and the optional
<operations> "else" clause is present, the operations after "else" are
performed. If the condition is false and else is omitted, the
instruction performs no operation. Refer to the Bcc
instruction description as an example.
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