Cat Struggles With Two-Byte Opcodes

NOTE Some SSE/SSE2/SSE3 instructions have two-byte opcodes that are either 2 bytes or 3 bytes in length. Two-byte opcodes that are 3 bytes in length consist of: a mandatory prefix (F2H, F3H, or 66H), 0FH, and an opcode byte. See Table 11-3. two-byte opcodes that are either 2 bytes or 3 bytes in length.

A confused-looking cat crouches on a wooden floor beneath a technical note about SSE instruction opcodes. The joke compares the cat’s overwhelmed expression to the confusing fact that “two-byte” opcodes can actually be three bytes long, making it a reaction image for dense technical explanations or frustrating programming concepts.

• @dev_meme / 4305 2022-04-14