AMD Confidential

User Manual

November 21st, 2008

address parameter that specifies a linear address associated with the breakpoint. An optional parameter can be used to specify the pass count, i.e., the number of times the breakpoint should be hit before breaking into the debugger. In addition, the BM and BI commands accept an optional parameter that specifies whether to break on a read/input, or write/output transaction to the specified address. Examples of each command are shown in Table 10-1.

4.After setting up and enabling the breakpoint(s), enter G on the command line to resume CPU execution. This will execute the debugger's Go command, returning the CPU to continuous execution. If a breakpoint is hit, the simulation will pause, and the debugger will gain attention.

 

Command

 

Description

 

 

 

 

 

BX 1234abcd

 

Break on the next execution of the instruction located

 

 

 

at linear address, 0x1234ABCD.

 

 

 

 

 

 

 

 

BX 1234ABCD 2

 

Break on the third execution of the instruction located

 

 

 

at linear address, 0x1234ABCD.

 

 

 

 

 

 

 

 

BM abcd1234 r 3

 

Break on the fourth

read of

the

memory location,

 

 

 

0xABCD1234 (linear).

 

 

 

 

 

 

 

 

 

 

 

 

BM abcd1234 3

 

Break on the fourth

access

(read

or write) of the

 

 

 

memory location, 0xABCD1234 (linear).

 

 

 

 

 

 

BI 80 w 3

 

Break on the fourth write to I/O address, 0x80.

 

Table 10-1: Debugger Breakpoint Command Examples

10.1.2 Single Stepping the Simulation

1.Stop the simulation as described in Section 3.1, “Tool Bar Buttons”, on page 7.

2.Open the Debugger Window (“View→Show Debugger”) or click on . The simulation will pause and the Debugger Window will appear. .

3.The bottom pane in the Debugger Window is the debugger command line. When the Debugger Window has attention, enter T on the debugger command line. The debugger Trace command will execute, causing the CPU device to execute one instruction, and then return attention to the debugger.

4.The debugger will repeat the last entered command, if you just type Enter on the command line. So, you can repeatedly step instructions by entering T once, then repeatedly hitting the Enter key.

5.The simulation can be returned to continuous execution by entering G). This executes the debugger's Go command.

10.1.3 Stepping Over an Instruction

1.Stop the simulation as described in Section 3.1, “Tool Bar Buttons”, on page 7.

2.Open the Debugger Window (“View→Show Debugger”) or click on . The simulation will pause and the Debugger Window will appear.

3.When the Debugger Window has attention, enter P on the debugger command line. The debugger Pretty Trace command will execute, causing the CPU device to execute up to the next instruction in linear order (i.e., step over calls, interrupts, repeated instructions, and loops). This is distinguished from the T command,

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Chapter 10: CPU Debugger

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4.4.5 specifications

AMD 4.4.5 is a robust version of the AMD software ecosystem that focuses on enhanced performance, stability, and efficiency for users relying on AMD processors and graphics cards. This iteration brings various features and technologies designed to optimize gaming, professional applications, and general computing tasks.

One of the standout enhancements in AMD 4.4.5 is the integration of Smart Access Memory technology, which allows the CPU to access the full graphics memory directly. This feature enhances data flow between the CPU and GPU, leading to improved frame rates and overall performance, especially in memory-intensive games. Users can experience a marked increase in gaming performance without the need for additional hardware upgrades.

Another significant feature introduced is the updated Radeon Software Adrenalin Edition. This software update encompasses optimizations for various games, ensuring that gamers can enjoy a seamless experience with the latest titles. The Adrenalin interface also provides features such as Radeon Chill, which helps reduce power consumption during less demanding scenes, and Radeon Anti-Lag, designed to minimize input lag and enhance responsiveness in competitive gaming.

Additionally, AMD 4.4.5 brings the latest drivers that include important performance enhancements and bug fixes that allow for greater system stability. Regular updates ensure that users have the best experience with their AMD hardware, and it significantly bolsters compatibility with the latest gaming titles and software applications.

AMD's Enhanced Sync technology offers users the ability to eliminate screen tearing and stuttering while delivering smooth gameplay. It dynamically synchronizes the refresh rate of the display with the frame rates produced by the GPU, improving the visual experience significantly.

With the introduction of FidelityFX Super Resolution, AMD continues to bolster its suite of technologies that enhance graphics quality and performance. This feature allows lower-resolution images to be upscaled effectively, making it easier for users to enjoy high-end visuals without taxing their hardware excessively.

In summary, AMD 4.4.5 represents a comprehensive update for users by integrating cutting-edge technologies that cater to a wide range of applications from gaming to content creation. With enhancements across the board, AMD reaffirms its commitment to providing high-performance solutions that keep pace with the ever-evolving technology landscape. Whether for gaming aficionados or professional creators, the capabilities offered in this version make it a significant milestone in the AMD software ecosystem.
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