M68000 データシートの表示（PDF） - Motorola => Freescale

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M68000

8-/16-/32-Bit Microprocessors User’s Manual

Motorola => Freescale 

Freescale Semiconductor, Inc.

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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M68000 8-/16-/32-BIT MICROPROCESSOR USER’S MANUAL

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Go to: www.freescale.com

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