Define opcode. opcode synonyms, opcode pronunciation, opcode translation, English dictionary definition of opcode. n a computer code containing operating instructions Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCol
An operand is the part of an instruction that references data to be acted upon. An operation code (opcode) is the part of an instruction that tells the computer what to do, such as input, add or branch. The opcode is the verb; the operands are the nouns. For example, in the instruc...
宏汇编器MPASM ... 10.Illegal argument 非法参数。 16.Illegal opcode非法操作数。 19.Macro name missing 缺少宏定义名称 … wt.b2bic.com|基于9个网页 2. 非法操作码 什么意思_英语opcode在线翻译_有道词典... ... primary opcode 要操作码Illegal Opcode非法操作码opcode prefixes 操作码前 … ...
For example, if the Emit instruction requires a 2-byte operand and the caller supplies a 4-byte operand, the runtime will emit two additional bytes to the instruction stream. These extra bytes will be Nop instructions. The instruction values are defined in OpCodes. Examples The f...
The prefixes allow encoding more registers than previous x86 instructions and are required for accessing the new 256-bit SIMD registers or using the three- and four-operand syntax. As a user, you do not need to worry about this (unless you're writing assemblers or d...
OpcodemapfieldusedoperandtypeUnitOpfieldsrc1src2dstuintxuintuintM1M211101src1src2dstucst5xuintuintM1M211110Opcode3129282723221817131211106543210cregzdstsrc2src1ucstx0op1100sp31555115411DescriptionTheROTLinstructionrotates32bitvalueplacestheresultfiveleastsignificantbitssrc1Bitsthrough31nonzeroexamplebelowsrc1ROTL...
opcode 指令助记符,如LDR,STR 等 cond 执行条件,如EQ,NE 等 S 是否影响CPSR 寄存器的值,书写时影响CPSR,否则不影响 Rd 目标寄存器 Rn 第一个操作数的寄存器 operand2 第二个操作数 指令格式举例如下: LDR R0,[R1] ;读取R1 地址上的存储器单元内容,执行条件AL BEQ DATAEVEN ;跳转指令,执 ...
destination working register R1 contains the value 12H and the source working register R2 contains 03H. The statement "AND R1,R2" logically ANDs the source operand 03H with the destination operand value 12H, leaving the value 02H in register R1. SAM88RCRI INSTRUCTION SET S3C9442/C9444/F9444/...
Format: Bytes Cycles Opcode (Hex) opc 1 4 DF Example: The statement SCF sets the carry flag to logic one. 翻译结果(简体中文)1: 格式: 字节周期操作码地址模式 (十六进制)DST OPC 2 4 C0ŕ 4 C1 IR 例子:给定:寄存器00H = 55H,寄存器01H = 02H,寄存器02H = 17H,C =“0”: RRC 00H...