
Index
361
24593—Rev. 3.09—September 2003
AMD 64-Bit Technology
NOT instruction.......................................... 67
number encodings
128-bit media floating-point................. 156
x87........................................................... 308
number representation
128-media floating-point....................... 153
64-bit media floating-point................... 243
x87 floating-point................................... 305
O
octword ..................................................... xxvi
OE bit................................. 143, 214, 291, 341
OF bit........................................................... 40
offset......................................................... xxvi
OM bit................................................ 143, 294
opcode........................................................ 298
operand size 33, 44, 82, 84, 87, 125, 224, 281
operands
128-bit media.......................................... 145
64-bit media............................................ 238
addressing ................................................ 46
general-purpose ....................................... 41
x87........................................................... 300
operating modes ....................................... 3, 7
OR instruction............................................. 67
ordered compare............................... 206, 328
ORPD instruction ..................................... 207
ORPS instruction...................................... 207
OSXMMEXCPT bit................................... 212
OUT instruction.......................................... 77
OUTS instruction........................................ 77
OUTSB instruction ..................................... 77
OUTSD instruction..................................... 77
OUTSW instruction.................................... 77
overflow.................................................... xxvi
overflow exception (OE) .................. 214, 341
overflow flag................................................ 40
P
pack instructions .............................. 168, 251
packed....................................... xxvi, 129, 231
packed BCD digits ...................................... 43
packed-decimal data type........................ 304
PACKSSDW instruction ................... 168, 251
PACKSSWB instruction.................... 168, 251
PACKUSWB instruction................... 168, 251
PADDB instruction ........................... 174, 255
PADDD instruction........................... 174, 255
PADDQ instruction........................... 174, 255
PADDSB instruction......................... 174, 256
PADDSW instruction........................ 174, 256
PADDUSB instruction.............................. 174
PADDUSW instruction............................. 174
PADDW instruction.......................... 174, 255
PAND instruction............................. 185, 263
PANDN instruction .......................... 185, 263
parallel operations........................... 128, 231
parameter passing.................................... 223
parity flag ................................................... 39
partial remainder..................................... 324
PAVGB instruction ........................... 179, 259
PAVGUSB instruction.............................. 260
PAVGW instruction.......................... 179, 259
PC field ............................................. 294, 313
PCMPEQB instruction..................... 183, 262
PCMPEQD instruction..................... 183, 262
PCMPEQW instruction.................... 183, 262
PCMPGTB instruction..................... 183, 262
PCMPGTD instruction..................... 183, 262
PCMPGTW instruction.................... 183, 262
PC-relative addressing......................... 19, 22
PE bit................................. 143, 215, 291, 341
performance considerations
128-bit media......................................... 224
64-bit media........................................... 281
general-purpose..................................... 124
x87 .......................................................... 352
PEXTRW instruction ....................... 171, 253
PF bit........................................................... 39
PF2ID instruction..................................... 266
PF2IW instruction.................................... 266
PFACC instruction ................................... 269
PFADD instruction................................... 267
PFCMPEQ instruction............................. 271
PFCMPGE instruction............................. 271
PFCMPGT instruction............................. 271
PFMAX instruction.................................. 271
PFMIN instruction................................... 271
PFMUL instruction.................................. 268
PFNACC instruction ................................ 269
PFPNACC instruction.............................. 269
PFRCP instruction................................... 270
PFRCPIT1 instruction............................. 270
PFRCPIT2 instruction............................. 270
PFRSQIT1 instruction............................. 271
PFRSQRT instruction.............................. 271
PFSUB instruction................................... 268
PFSUBR instruction ................................ 268
physical memory ........................................ 13
Pi........................................................ 320, 326
PI2FD instruction..................................... 250
PI2FW instruction.................................... 250
PINSRW instruction......................... 171, 253
PM bit................................................ 143, 294