13 lines
1.1 KiB
Markdown
13 lines
1.1 KiB
Markdown
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| Opcode | Instruction | Op/En | 64-Bit Mode | Compat/Leg Mode | Description |
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| ------------- | ----------- | ----- | ----------- | --------------- | ----------------------------------- |
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| FE /0 | INC r/m8 | M | Valid | Valid | Increment r/m byte by 1. |
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| REX + FE /0 | INC r/m8\* | M | Valid | N.E. | Increment r/m byte by 1. |
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| FF /0 | INC r/m16 | M | Valid | Valid | Increment r/m word by 1. |
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| FF /0 | INC r/m32 | M | Valid | Valid | Increment r/m doubleword by 1. |
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| REX.W + FF /0 | INC r/m64 | M | Valid | N.E. | Increment r/m quadword by 1. |
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| 40+ rw\*\* | INC r16 | O | N.E. | Valid | Increment word register by 1. |
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| 40+ rd | INC r32 | O | N.E. | Valid | Increment doubleword register by 1. |
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> \*In 64-bit mode, r/m8 can not be encoded to access the following byte registers if a REX prefix is used: AH, BH, CH, DH.
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>
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> \*\*40H through 47H are REX prefixes in 64-bit mode.
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