AMD Confidential

User Manual

November 21st, 2008

The simulator works by translating guest x86 instructions to long-mode user-mode instructions which it then executes. These translated instructions are grouped into blocks called translations. These translations exist in a translation buffer, which is typically about 64 MB. When the translation buffer is full and space for another translation is needed, the simulator disposes of the contents of the translation buffer and starts a new epoch. An epoch, in SimNow terms, is the period of execution between the flushing of the translation cache. It is only the period from the start of the current epoch to the issuance of the dumpprofile command that the profile will cover.

A.7.17.2 CPU Code Generator Commands

Table 15-13describes all available Code Generator commands and their arguments.

command

 

args

 

 

 

 

 

Description

 

 

 

Help

 

None

 

 

Displays

an

overview

of

all

available

 

 

 

commands.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

param

 

None

 

 

Displays

the

current

state

of

the

 

 

 

configurable code generator parameters.

 

 

 

 

 

param

 

parameter

 

 

Displays the current value of <parameter>,

 

 

 

e.g., “cpu.codegen param FastFloat”.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sets the current value of <parameter> to

param

 

parameter

value

 

<value>.

For

example,

“cpu.codegen

param

 

 

 

 

 

FastFloat 0” disables ”FastFloat”.

 

 

 

 

 

 

Changes the current value of one boolean

enable

 

Boolean Parameter

 

parameter

 

to

 

true.

For

example,

 

 

“cpu.codegen

enable

FastFloat”

enables

 

 

 

 

 

 

 

 

 

 

“FastFloat”.

 

 

 

 

 

 

 

 

 

 

 

 

Changes the current value of one boolean

disable

 

Boolean Parameter

 

parameter

 

to

 

false.

For

example,

 

 

“cpu.codegen

disable

FastFloat”

disables

 

 

 

 

 

 

 

 

 

 

“FastFloat”.

 

 

 

 

 

 

 

optimize

 

accuracy

 

 

Changes

several

parameters

to

the

 

 

 

conservative setting.

 

 

 

 

 

 

 

 

 

 

 

 

 

optimize

 

 

speed

 

Changes several parameters to the default

 

 

 

aggressive setting.

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 15-13: CodeGen Command Overview

A.7.18 Emerald Graphics

1 simnow> emerald.usage

Automation Command

 

Description

 

 

FrameBufSize sets the size of the frame buffer in

FrameBufSize <size>

 

Megabytes. The size must be a power of 2. The value

 

placed in this option is only read at reset. The frame

 

 

 

 

buffer size can not be dynamically modified.

FrameBufGetSize

 

Returns the size of the frame buffer in Megabytes.

Accel (01)

 

Enables (1) or disables (0) the Accelerator used by the

 

Video driver.

 

 

GetAccel

 

Returns true if Accelerator is enabled; otherwise it

 

returns false.

 

 

VBE (01)

 

Enables (1) or disables (0) VESA BIOS Extensions.

Appendix A

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AMD 4.4.5 user manual Emerald Graphics, Command Args Description, 241
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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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