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DNow!™ Instructions, Table 14., MMX™ Instructions continued, Instruction Mnemonic, Prefix, Bytes

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23542A/0-September 2000 Preliminary Information AMD-K6™-2E+ Embedded Processor Data Sheet Table 14. MMX™ Instructions (continued) Instruction Mnemonic PXOR mmreg, mem64 Prefix First Byte(s) Byte 0Fh EFh Notes: 1. Bits 2, 1, and 0 of the modR/M byte select the integer register. ModR/M Byte mm-xxx-xxx Decode Type short RISC86 Operations mload, meu Table 15. 3DNow!™ Instructions Instruction Mnemonic FEMMS PAVGUSB mmreg1, mmreg2 PAVGUSB mmreg, mem64 PF2ID mmreg1, mmreg2 PF2ID mmreg, mem64 PFACC mmreg1, mmreg2 PFACC mmreg, mem64 PFADD mmreg1, mmreg2 PFADD mmreg, mem64 PFCMPEQ mmreg1, mmreg2 PFCMPEQ mmreg, mem64 PFCMPGE mmreg1, mmreg2 PFCMPGE mmreg, mem64 PFCMPGT mmreg1, mmreg2 PFCMPGT mmreg, mem64 PFMAX mmreg1, mmreg2 PFMAX mmreg, mem64 PFMIN mmreg1, mmreg2 PFMIN mmreg, mem64 PFMUL mmreg1, mmreg2 PFMUL mmreg, mem64 PFRCP mmreg1, mmreg2 PFRCP mmreg, mem64 PFRCPIT1 mmreg1, mmreg2 PFRCPIT1 mmreg, mem64 PFRCPIT2 mmreg1, mmreg2 PFRCPIT2 mmreg, mem64 PFRSQIT1 mmreg1, mmreg2 Prefix Byte(s) 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh 0Fh, 0Fh Opcode Byte 0Eh BFh BFh 1Dh 1Dh AEh AEh 9Eh 9Eh B0h B0h 90h 90h A0h A0h A4h A4h 94h 94h B4h B4h 96h 96h A6h A6h B6h B6h A7h ModR/M Byte 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx mm-xxx-xxx 11-xxx-xxx Decode Type vector short short short short short short short short short short short short short short short short short short short short short short short short short short short RISC86 Operations meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu mload, meu meu Chapter 3 Software Environment 89

Section	Page
IF YOU HAVE QUESTIONS, WE\	3
Contents	5
List of Figures	9
List of Tables	13
Revision History	17
About this Data Sheet	19
1 AMDK6™2E+ Embedded Processor	23
1.1 AMDK6™2E+ Embedded Processor Features	25
1.2 Process Technology	29
1.3 Super7™ Platform	30
2 Internal Architecture	33
2.1 Microarchitecture Overview	33
2.2 Cache, Instruction Prefetch, and Predecode Bits	38
2.3 Instruction Fetch and Decode	39
2.4 Centralized Scheduler	43
2.5 Execution Units	44
2.6 BranchPrediction Logic	47
3 Software Environment	49
3.1 Registers	49
3.2 ModelSpecific Registers (MSR)	66
3.3 Memory Management Registers	76
3.4 Paging	78
3.5 Descriptors and Gates	81
3.6 Exceptions and Interrupts	84
3.7 Instructions Supported by the AMDK6™2E+ Processor	85
4 Logic Symbol Diagram	113
5 Signal Descriptions	115
5.1 Signal Terminology	115
5.2 A20M# (Address Bit 20 Mask)	116
5.3 A[31:3] (Address Bus)	117
5.4 ADS# (Address Strobe)	118
5.5 ADSC# (Address Strobe Copy)	118
5.6 AHOLD (Address Hold)	119
5.7 AP (Address Parity)	120
5.8 APCHK# (Address Parity Check)	121
5.9 BE[7:0]# (Byte Enables)	122
5.10 BF[2:0] (Bus Frequency)	123
5.11 BOFF# (Backoff)	124
5.12 BRDY# (Burst Ready)	125
5.13 BRDYC# (Burst Ready Copy)	126
5.14 BREQ (Bus Request)	126
5.15 CACHE# (Cacheable Access)	127
5.16 CLK (Clock)	127
5.17 D/C# (Data/Code)	128
5.18 D[63:0] (Data Bus)	129
5.19 DP[7:0] (Data Parity)	130
5.20 EADS# (External Address Strobe)	131
5.21 EWBE# (External Write Buffer Empty)	132
5.22 FERR# (FloatingPoint Error)	133
5.23 FLUSH# (Cache Flush)	134
5.24 HIT# (Inquire Cycle Hit)	135
5.25 HITM# (Inquire Cycle Hit To Modified Line)	135
5.26 HLDA (Hold Acknowledge)	136
5.27 HOLD (Bus Hold Request)	137
5.28 IGNNE# (Ignore Numeric Exception)	138
5.29 INIT (Initialization)	139
5.30 INTR (Maskable Interrupt)	140
5.31 INV (Invalidation Request)	140
5.32 KEN# (Cache Enable)	141
5.33 LOCK# (Bus Lock)	142
5.34 M/IO# (Memory or I/O)	143
5.35 NA# (Next Address)	144
5.36 NMI (NonMaskable Interrupt)	145
5.37 PCD (Page Cache Disable)	146
5.38 PCHK# (Parity Check)	147
5.39 PWT (Page Writethrough)	148
5.40 RESET (Reset)	149
5.41 RSVD (Reserved)	150
5.42 SCYC (Split Cycle)	151
5.43 SMI# (System Management Interrupt)	152
5.44 SMIACT# (System Management Interrupt Active)	153
5.45 STPCLK# (Stop Clock)	154
5.46 TCK (Test Clock)	155
5.47 TDI (Test Data Input)	155
5.48 TDO (Test Data Output)	155
5.49 TMS (Test Mode Select)	156
5.50 TRST# (Test Reset)	156
5.51 VCC2DET (VCC2 Detect)	157
5.52 VCC2H/L# (VCC2 High/Low)	158
5.53 VID[4:0] (Voltage Identification)	159
5.54 W/R# (Write/Read)	160
5.55 WB/WT# (Writeback or Writethrough)	161
5.56 Pin Tables by Type	162
5.57 Bus Cycle Definitions	164
6 AMD PowerNow!™ Technology	165
6.1 Enhanced Power Management Features	165
6.2 Dynamic Core Frequency and Core Voltage Control	172
7 Bus Cycles	175
7.1 Timing Diagrams	175
7.2 Bus States	177
7.3 Memory Reads and Writes	180
7.4 I/O Read and Write	188
7.5 Inquire and Bus Arbitration Cycles	190
7.6 Special Bus Cycles	212
8 Poweron Configuration and Initialization	221
8.1 Signals Sampled During the Falling Transition of RESET	221
8.2 RESET Requirements	222
8.3 State of Processor After RESET	222
8.4 State of Processor After INIT	225
9 Cache Organization	227
9.1 MESI States in the L1 Data Cache and L2 Cache	229
9.2 Predecode Bits	230
9.3 Cache Operation	230
9.4 Cache Disabling and Flushing	233
9.5 L2 Cache Testing	235
9.6 CacheLine Fills	235
9.7 CacheLine Replacements	236
9.8 Write Allocate	237
9.9 Prefetching	242
9.10 Cache States	243
9.11 Cache Coherency	244
9.12 Writethrough and Writeback Coherency States	249
9.13 A20M# Masking of Cache Accesses	249
10 Write Merge Buffer	251
10.1 EWBE# Control	251
10.2 Memory Type Range Registers	253
10.3 Memory-Range Restrictions	255
10.4 Examples	257
11 FloatingPoint and Multimedia Execution Units	259
11.1 FloatingPoint Execution Unit	259
11.2 Multimedia and 3DNow!™ Execution Units	261
11.3 FloatingPoint and MMX™/3DNow!™ Instruction Compatibility	262
12 System Management Mode (SMM)	263
12.1 SMM Operating Mode and Default Register Values	263
12.2 SMM StateSave Area	265
12.3 SMM Revision Identifier	267
12.4 SMM Base Address	268
12.5 Halt Restart Slot	268
12.6 I/O Trap Doubleword	269
12.7 I/O Trap Restart Slot	270
12.8 Exceptions, Interrupts, and Debug in SMM	272
13 Test and Debug	273
13.1 BuiltIn SelfTest (BIST)	273
13.2 ThreeState Test Mode	274
13.3 BoundaryScan Test Access Port (TAP)	275
13.4 Cache Inhibit	285
13.5 L2 Cache and Tag Array Testing	286
13.6 Debug	290
14 Clock Control	297
14.1 Clock Control States	297
14.2 Halt State	300
14.3 Stop Grant State	300
14.4 Stop Grant Inquire State	302
14.5 EPM Stop Grant State	303
14.6 Stop Clock State	305
15 Electrical Data	307
15.1 Operating Ranges	308
15.2 Absolute Ratings	309
15.3 DC Characteristics	309
15.4 Power Dissipation	311
15.5 Power and Grounding	313
16 Signal Switching Characteristics	317
16.1 CLK Switching Characteristics	318
16.2 Clock Switching Characteristics for 100MHz Bus Operation	318
16.3 Clock Switching Characteristics for 66MHz Bus Operation	319
16.4 Valid Delay, Float, Setup, and Hold Timings	320
16.5 Output Delay Timings for 100MHz Bus Operation	320
16.6 Input Setup and Hold Timings for 100MHz Bus Operation	322
16.7 Output Delay Timings for 66MHz Bus Operation	324
16.8 Input Setup and Hold Timings for 66MHz Bus Operation	326
16.9 RESET and Test Signal Timing	328
16.10 Timing Diagrams	331
17 Thermal Design	335
17.1 Package Thermal Specifications	335
17.2 Measuring Case Temperature	339
17.3 Layout and Airflow Considerations	339
18 Pin Designations	343
18.1 Pins Designations for CPGA Package	344
18.2 Pins Designations for OBGA Package	348
19 Package Specifications	353
19.1 321Pin Staggered CPGA Package Specification	353
19.2 349Ball OBGA Package Specification	354
20 Ordering Information	355

Match case Limit results 1 per page

Chapter 3

Software Environment

23542A/0—September 2000

AMD-K6™-2E+ Embedded Processor Data Sheet

Preliminary Information

PXOR mmreg, mem64

0Fh

EFh

mm-xxx-xxx

short

mload, meu

Notes:

Bits 2, 1, and 0 of the modR/M byte select the integer register.

Table 15.

3DNow!™ Instructions

Instruction Mnemonic

Prefix

Byte(s)

Opcode

Byte

ModR/M

Byte

Decode

Type

RISC86

Operations

FEMMS

0Fh

0Eh

vector

PAVGUSB mmreg1, mmreg2

0Fh, 0Fh

BFh

11-xxx-xxx

short

meu

PAVGUSB mmreg, mem64

0Fh, 0Fh

BFh

mm-xxx-xxx

short

mload, meu

PF2ID mmreg1, mmreg2

0Fh, 0Fh

1Dh

11-xxx-xxx

short

meu

PF2ID mmreg, mem64

0Fh, 0Fh

1Dh

mm-xxx-xxx

short

mload, meu

PFACC mmreg1, mmreg2

0Fh, 0Fh

AEh

11-xxx-xxx

short

meu

PFACC mmreg, mem64

0Fh, 0Fh

AEh

mm-xxx-xxx

short

mload, meu

PFADD mmreg1, mmreg2

0Fh, 0Fh

9Eh

11-xxx-xxx

short

meu

PFADD mmreg, mem64

0Fh, 0Fh

9Eh

mm-xxx-xxx

short

mload, meu

PFCMPEQ mmreg1, mmreg2

0Fh, 0Fh

B0h

11-xxx-xxx

short

meu

PFCMPEQ mmreg, mem64

0Fh, 0Fh

B0h

mm-xxx-xxx

short

mload, meu

PFCMPGE mmreg1, mmreg2

0Fh, 0Fh

90h

11-xxx-xxx

short

meu

PFCMPGE mmreg, mem64

0Fh, 0Fh

90h

mm-xxx-xxx

short

mload, meu

PFCMPGT mmreg1, mmreg2

0Fh, 0Fh

A0h

11-xxx-xxx

short

meu

PFCMPGT mmreg, mem64

0Fh, 0Fh

A0h

mm-xxx-xxx

short

mload, meu

PFMAX mmreg1, mmreg2

0Fh, 0Fh

A4h

11-xxx-xxx

short

meu

PFMAX mmreg, mem64

0Fh, 0Fh

A4h

mm-xxx-xxx

short

mload, meu

PFMIN mmreg1, mmreg2

0Fh, 0Fh

94h

11-xxx-xxx

short

meu

PFMIN mmreg, mem64

0Fh, 0Fh

94h

mm-xxx-xxx

short

mload, meu

PFMUL mmreg1, mmreg2

0Fh, 0Fh

B4h

11-xxx-xxx

short

meu

PFMUL mmreg, mem64

0Fh, 0Fh

B4h

mm-xxx-xxx

short

mload, meu

PFRCP mmreg1, mmreg2

0Fh, 0Fh

96h

11-xxx-xxx

short

meu

PFRCP mmreg, mem64

0Fh, 0Fh

96h

mm-xxx-xxx

short

mload, meu

PFRCPIT1 mmreg1, mmreg2

0Fh, 0Fh

A6h

11-xxx-xxx

short

meu

PFRCPIT1 mmreg, mem64

0Fh, 0Fh

A6h

mm-xxx-xxx

short

mload, meu

PFRCPIT2 mmreg1, mmreg2

0Fh, 0Fh

B6h

11-xxx-xxx

short

meu

PFRCPIT2 mmreg, mem64

0Fh, 0Fh

B6h

mm-xxx-xxx

short

mload, meu

PFRSQIT1 mmreg1, mmreg2

0Fh, 0Fh

A7h

11-xxx-xxx

short

meu

Table 14.

MMX™ Instructions (continued)

Instruction Mnemonic

Prefix

Byte(s)

First

Byte

ModR/M

Byte

Decode

Type

RISC86

Operations