DS200TCQCG1BGF燃机通用模块,GE使用数据
M88000固件概述基于M88000的（88K）系列板级和系统级固件产品有一个共同的谱系，源自当前的BUG固件用于所有基于摩托罗拉M68000（68K）的CPU模块。M88000固件系列提供了高度的功能性和用户友好性，同时强调便携性和易于维护。该成员M88000固件系列在MVME197LE单板上实现它被称为MVME197BUG，或者仅仅是197Bug。
DS200TCQCG1BGF燃机通用模块197Bug说明197Bug包MVME197BUG是一个强大的评估和调试工具用于围绕基于RISC的MVME197系列构建的系统的工微型计算机。设备可用于加载和执行用户操作员完全控制下的程序，用于系统评估。197磅包括用于显示和修改内存、断点和跟踪功能，一个强大的汇编/反汇编程序，用于修补程序，以及一个开机自检功能，用于验证系统处理输入/输出、数据转换和字符串的各种197Bug例程通过TRAP#496处理程序，用户程序可以使用函数。这个陷阱#496处理程序可以通过任何陷阱异常命令访问TB0、TB1、TBND和TCND，带陷阱向量#496。197Bug由三部分组成：❏ 命令驱动的用户交互软件调试器，在后一章（使用197Bug调试器），以下称为“调试器”。
❏ MVME197LE硬件的命令驱动诊断包，MVME197BUG 197Bug诊断固件用户手册中介绍以下简称“诊断”。❏ 接受系统控制台命令的用户界面航空站使用197Bug时，用户在调试器目录或诊断目录。如果用户位于调试器目录中，则显示调试器提示“197 Bug>”，用户拥有所有调试器命令。如果在诊断目录中，则显示诊断提示“197 Diag>”，并且用户具有所有他可以使用的诊断命令以及所有调试器命令。用户可以使用切换目录（SD）在目录之间切换命令，或者可以检查用户当前正在使用帮助（HE）命令。由于197Bug是命令驱动的，因此它在对在键盘上输入的用户命令的响应。当命令输入后，197Bug执行命令并再次出现提示。然而如果输入的命令导致执行用户目标代码（例如。，“GO”），则控制可能返回到197Bug，也可能不返回到197Bug，这取决于用户程序的结果。
Overview of M88000 Firmware
The firmware for the M88000-based (88K) series of board and system level
products has a common genealogy, deriving from the BUG firmware currently
used on all Motorola M68000-based (68K) CPU modules. The M88000
firmware family provides a high degree of functionality and user friendliness,
and yet stresses portability and ease of maintenance. This member of the
M88000 firmware family is implemented on the MVME197LE Single Board
Computer, and is known as the MVME197BUG, or just 197Bug.
Description of 197Bug
The 197Bug package, MVME197BUG, is a powerful evaluation and debugging
tool for systems built around the MVME197 series of RISC-based
microcomputers. Facilities are available for loading and executing user
programs under complete operator control for system evaluation. 197Bug
includes commands for display and modification of memory, breakpoint and
tracing capabilities, a powerful assembler/disassembler useful for patching
programs, and a self-test at power-up feature which verifies the integrity of the
system. Various 197Bug routines that handle I/O, data conversion, and string
functions are available to user programs through the TRAP #496 handler. The
TRAP #496 handler is accessible through any of the trap exception commands
TB0, TB1, TBND, and TCND, with trap vector #496.
197Bug consists of three parts:
❏ A command-driven user-interactive software debugger, described in a
later chapter (Using the 197Bug Debugger) and hereafter referred to as “the
debugger”.
❏ A command-driven diagnostic package for the MVME197LE hardware,
described in the MVME197BUG 197Bug Diagnostic Firmware User’s Manual
and hereafter referred to as “the diagnostics”.
❏ A user interface which accepts commands from the system console
terminal.
When using 197Bug, the user operates out of either the debugger directory or
the diagnostic directory. If the user is in the debugger directory, then the
debugger prompt “197-Bug>” is displayed and the user has all of the
debugger commands at his or her disposal. If in the diagnostic directory, then the diagnostic prompt “197-Diag>” is displayed and the user has all of the
diagnostic commands at his disposal as well as all of the debugger commands.
The user may switch between directories by using the Switch Directories (SD)
command, or may examine the commands in the particular directory that the
user is currently in by using the Help (HE) command.
Because 197Bug is command-driven, it performs its various operations in
response to user commands entered at the keyboard. When a command is
entered, 197Bug executes the command and the prompt reappears. However,
if a command is entered which causes execution of user target code (e.g.,
“GO”), then control may or may not return to 197Bug, depending on the
outcome of the user program.
