AMD-K6 AMD [Advanced Micro Devices], AMD-K6 Datasheet - Page 68

• Manufacturer Part Number: AMD-K6
• Description: AMD-K6 Processor
• Manufacturer: AMD [Advanced Micro Devices]

AMD-K6
Table 10. Integer Instructions
50
AAA
AAD
AAM
AAS
ADC mreg8, reg8
ADC mem8, reg8
ADC mreg16/32, reg16/32
ADC mem16/32, reg16/32
ADC reg8, mreg8
ADC reg8, mem8
ADC reg16/32, mreg16/32
ADC reg16/32, mem16/32
ADC AL, imm8
Instruction Mnemonic
®
Processor Data Sheet
The second and third columns list all applicable opcode bytes.
The fourth column lists the modR/M byte when used by the
instruction. The modR/M byte defines the instruction as a
register or memory form. If modR/M bits 7 and 6 are documented
as mm (memory form), mm can only be 10b, 01b or 00b.
The fifth column lists the type of instruction decode — short,
long, and vector. The AMD-K6 decode logic can process two
short, one long, or one vector decode per clock.
The sixth column lists the type of RISC86 operation(s) required
for the instruction. The operation types and corresponding
execution units are as follows:
load, fload, mload—load unit
store, fstore, mstore—store unit
alu—either of the integer execution units
alux—integer X execution unit only
branch—branch condition unit
float—floating-point execution unit
meu—multimedia execution unit for MMX software
limm—load immediate, instruction control unit
Byte
First
D5h
D4h
37h
3Fh
10h
10h
11h
11h
12h
12h
13h
13h
14h
Preliminary Information
Software Environment
Second
Byte
0Ah
0Ah
mm-xxx-xxx
mm-xxx-xxx
mm-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
11-xxx-xxx
11-xxx-xxx
11-xxx-xxx
xx-xxx-xxx
ModR/M
Byte
Decode
vector
vector
vector
vector
Type
short
short
short
short
short
short
short
long
long
alux
load, alux, store
alu
load, alu, store
alux
load, alux
alu
load, alu
alux
RISC86
Opcodes
®
20695H/0—March 1998
Chapter 3