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by jcranmer
236 days ago
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The explanation of the symbols is largely found here: https://www.sandpile.org/x86/opc_enc.htm Essentially, the uppercase letter of an operand is a combination of the operand type (immediate, register, memory) along with how that is encoded (as ModR/M bytes have a register and a register/memory field), while the lowercase letter is the size of the operand (largely 8-bit/16-bit/32-bit/64-bit for the 1-byte opcodes). |
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