摘要： 【Mac- i386 Operands and Addressing Modes】 The i386 architecture uses four kinds of instruction operands:Register：Register operands specify that the value stored in the named register is to be used by the operator.Immediate：Immediate operands are constant values specified in assembler code.Direct Me. 阅读全文

摘要： 【Mac - i386 Registers】Registers Many instructions accept registers as operands. The OS X assembler for Intel i386 processors always uses names beginning with a percent sign (‘%’) for registers, so naming conflicts with identifiers aren’t possible; further, all register names are in lowercase letter. 阅读全文