Original
Assembler statement syntax
This
syntax of an assembler statement is
Label: Prefix Opcode Operand1, Operand2
where Label is a label, Prefix
is an assembler prefix opcode (operation code), Opcode is an assembler
instruction opcode or directive, and Operand is an assembler expression.
Label and Prefix are optional. Some opcodes take only one
operand, and some take none.
Comments
are allowed between assembler statements, but not within them. For example,
MOV
AX,1 {Initial value} {
OK }
MOV
CX,100 {Count} {
OK }
MOV
{Initial value} AX,1; {
Error! }
MOV CX, {Count} 100 { Error! }
See also
Inline assembler code: Overview
译文
汇编程序语句语法
汇编程序语句语法是
Label: Prefix Opcode Operand1, Operand2
这里的Label是一个标号，
Prefix是一个汇编操作码前缀，Opcode是一个汇编指令操作码或指示，Operand是一个汇编表达式。Label和Prefix是可选的。一些操作码仅接受一个操作数，一些甚至不接受操作数。
在汇编语句之间允许有注释，但不是在汇编语句内部。例如，
MOV
AX,1 {Initial value} {
正确 }
MOV
CX,100 {Count} {
正确 }
MOV
{Initial value} AX,1; { 错误！}
MOV CX, {Count} 100 { 错误！}