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The 68000's Instruction Set
Destination operand addressing modes
SUBA Subtract address
Operation: [destination] ← [destination] - [source]
Syntax: SUBA <ea>,An
Attributes: Size = word, longword
Description: Subtract the source operand from the destination operand and
store the result in the destination address register. Word
operations are sign-extended to 32 bits prior to subtraction.
Condition codes: X N Z V C
- - - - -
Source operand addressing modes
SUBI Subtract immediate
Operation: [destination] ← [destination] - <literal>
Syntax: SUBI #<data>,<ea>
Attributes: Size = byte, word, longword
Description: Subtract the immediate data from the destination operand. Store
the result in the destination operand.
Condition codes: X N Z V C
* * * * *
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