AMD Confidential

 

 

 

 

 

November 21st, 2008

User Manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Instruction

 

 

 

 

 

 

 

 

 

 

Supported

 

 

Mnemonic

 

 

Opcode

 

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Converts

packed

 

double-precision

 

 

 

 

 

 

 

floating-point

values

in

an

XMM

 

CVTPD2PI mmx,xmm2/m128

 

 

66 0F 2D /r

 

register

or 128-bit

memory

location

to

 

 

 

 

 

 

 

packed

doubleword

 

integers

values

in

 

 

 

 

 

 

 

the destination MMX™ register.

 

 

 

 

 

 

 

 

 

 

 

Converts two packed doubleword integer

 

 

 

 

 

 

 

values

in a MMX™ register or 64-bit

 

CVTPI2PD xmm,mmx/m64

 

 

66 0F 2A /r

 

memory

location

to

two

packed

double-

 

 

 

 

 

 

 

precision floating-point values in the

 

 

 

 

 

 

 

destination XMM register.

 

 

 

 

 

 

 

 

 

 

 

 

 

Converts

packed

 

 

doubleword

integer

 

 

 

 

 

 

 

values

in a MMX™ register or 64-bit

 

CVTPI2PS mmx,xmm2/m128

 

 

0F 2A /r

 

memory

 

location

 

to single-precision

 

 

 

 

 

 

 

floating-point

 

values

 

in

the

 

 

 

 

 

 

 

destination XMM register.

 

 

 

 

 

 

 

A.6.6 3DNow!™ Instruction Set

This chapter describes the 3DNow! Instruction Set that the simulator supports and simulates. 3DNow! Technology is a group of new instructions that opens the traditional processing bottlenecks for floating-point-intensive and multimedia applications.

 

 

 

 

 

 

Instruction

 

 

 

 

 

 

 

 

 

 

Supported

 

 

Mnemonic

 

 

Opcode

 

 

 

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEMMS

 

 

0F

0E

 

 

 

Fast

Enter/Exit

of

the

MMX

or

 

 

 

 

 

 

floating-point state.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PAVGUSB mmreg1,mmreg2/m64

 

 

0F

0F

/BF

 

 

Average

of

unsigned

packed

8-bit

 

 

 

 

 

values.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PF2ID mmreg1,mmreg2/m64

 

 

0F

0F

/1D

 

 

Converts

packed

floating-point

 

 

 

 

 

operand or packed 32-bit integer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFACC mmreg1,mmreg2/m64

 

 

0F

0F

/AE

 

 

Floating-point accumulate.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFADD mmreg1,mmreg2/m64

 

 

0F

0F

/9E

 

 

Packed, floating-point addition.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFCMPEQ mmreg1,mmreg2/m64

 

 

0F

0F

/B0

 

 

Packed

 

floating-point

 

comparison,

 

 

 

 

 

equal to.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFCMPPGE mmreg1,mmreg2/m64

 

 

0F

0F

/90

 

 

Packed

 

floating-point

 

comparison,

 

 

 

 

 

greater than or equal to.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFCMPGT mmreg1,mmreg2/m64

 

 

0F

0F

/A0

 

 

Packed

 

floating-point

 

comparison,

 

 

 

 

 

greater than.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFMAX mmreg1,mmreg2/m64

 

 

0F

0F

/A4

 

 

Packed floating-point maximum.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFMIN mmreg1,mmreg2/m64

 

 

0F

0F

/94

 

 

Packed floating-point minimum.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFMUL mmreg1,mmreg2/m64

 

 

0F

0F

/B4

 

 

Packed

 

 

 

floating-point

 

 

 

 

 

multiplication.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFRCP mmreg1,mmreg2/m64

 

 

0F

0F

/96

 

 

Packed floating-point approximation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFRCPIT1 mmreg1,mmreg2/m64

 

 

0F

0F

/A6

 

 

Packed

 

floating-point

 

reciprocal,

 

 

 

 

 

first iteration step.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFRCPIT2 mmreg1,mmreg2/m64

 

 

0F

0F

/B6

 

 

Packed

 

floating-point

 

reciprocal,

 

 

 

 

 

second iteration step.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFRSQIT1 mmreg1,mmreg2/m64

 

 

0F

0F

/A7

 

 

Packed

 

floating-point

 

reciprocal,

 

 

 

 

 

square root, first iteration step.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFRSQRT mmreg1,mmreg2/m64

 

 

0F

0F

/97

 

 

Packed

 

floating-point

 

reciprocal,

 

 

 

 

 

square root approximation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFSUB mmreg1,mmreg2/m64

 

 

0F

0F

/9A

 

 

Packed, floating-point subtraction.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PFSUBR mmreg1,mmreg2/m64

 

 

0F

0F

/AA

 

 

Packed,

floating-point

 

reverse

 

 

 

 

 

subtraction.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PI2FD mmreg1,mmreg2/m64

 

 

0F

0F

/0D

 

 

Packed

32-bit integer to floating-

 

 

 

 

 

point conversion.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Multiply signed packed 16-bit values

 

PMULHRW mmreg1,mmreg2/m64

 

 

0F

0F

/B7

 

 

with rounding

and

store the

high

16

 

 

 

 

 

 

 

 

 

 

 

 

bits.

 

 

 

 

 

 

 

 

 

 

 

 

PREFETCH/PREFETCHW

 

 

0F

0D

 

 

 

Prefetch

processor

cache

line

into

 

 

 

 

 

 

L1 data cache (Dcache).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 15-10: 3DNow!™ Instruction Reference

224

Appendix A

Page 235 Page 237
Page 236
Image 236
AMD 4.4.5 user manual 6 3DNow! Instruction Set
Page 235 Page 237

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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