LYT000A工業(yè)卡件,HITACHI配置教程
輸入調試器命令行197Bug是命令驅動(dòng)的，執行各種操作以響應在鍵盤(pán)上輸入的用戶(hù)命令。當調試器提示（197）時(shí)-錯誤>）出現在終端屏幕上，然后調試器準備接受命令。
輸入命令行時(shí)，它存儲在內部緩沖區中。處決僅在輸入回車(chē)后開(kāi)始，因此允許用戶(hù)如有必要，請使用中描述的控制字符更正輸入錯誤本指南中的調試器一般信息一章。
LYT000A工業(yè)卡件當輸入命令時(shí)，調試器執行該命令并提示再次出現。但是，如果輸入的命令導致執行用戶(hù)目標代碼，例如GO，則控件可能返回也可能不返回調試器，具體取決于用戶(hù)程序的操作。例如，如果已指定斷點(diǎn)，則當執行用戶(hù)程序時(shí)遇到斷點(diǎn)?；蛘?，用戶(hù)程序可以通過(guò)陷阱496返回調試器函數“.RETURN”。通常，調試器命令由以下部分組成：1.命令標識符（即MD或用于內存顯示的MD）命令）。請注意，允許使用大寫(xiě)或小寫(xiě)。2.如果命令設置為使用多個(gè)端口，則為端口號。在第一個(gè)論點(diǎn)之前至少有一個(gè)中間空格。命令指定的任何必需參數。
5.選項字段，由分號（；）分隔指定條件而不是命令的默認條件。表達式作為參數表達式可以是由算術(shù)分隔的一個(gè)或多個(gè)數值運算符：加號（+）、減號（-）、乘以（*）、除以（/）、邏輯與（&）、左移（<<）或右移（>>數值可以用十六進(jìn)制、十進(jìn)制、八進(jìn)制或
通過(guò)在它們前面加上適當的基標識符來(lái)實(shí)現二進(jìn)制。
Entering Debugger Command Lines
197Bug is command-driven and performs its various operations in response to
user commands entered at the keyboard. When the debugger prompt (197-
Bug>) appears on the terminal screen, then the debugger is ready to accept
commands.
As the command line is entered, it is stored in an internal buffer. Execution
begins only after the carriage return is entered, thus allowing the user to
correct entry errors, if necessary, using the control characters described in the
Debugger General Information chapter in this guide.
When a command is entered, the debugger executes the command and the
prompt reappears. However, if the command entered causes execution of user
target code, for example GO, then control may or may not return to the
debugger, depending on what the user program does. For example, if a
breakpoint has been specified, then control returns to the debugger when the
breakpoint is encountered during execution of the user program. Alternately,
the user program could return to the debugger by means of the TRAP #496
function “.RETURN”.
In general, a debugger command is made up of the following parts:
1. The command identifier (i.e., MD or md for the Memory Display
command). Note that either upper- or lowercase is allowed.
2. A port number if the command is set up to work with more than one port.
3. At least one intervening space before the first argument.
4. Any required arguments, as specified by command.
5. An option field, set off by a semicolon (;) to specify conditions other than
the default conditions of the command.Expression as a Parameter
An expression can be one or more numeric values separated by the arithmetic
operators: plus (+), minus (-), multiplied by (*), divided by (/), logical AND
(&), shift left (<<), or shift right (>>)
Numeric values may be expressed in either hexadecimal, decimal, octal, or
binary by immediately preceding them with the proper base identifier.
