G1-300B-85-2.0
| Model | G1-300B-85-2.0 |
| Description | Processor Series Low Power Integrated x86 Solution |
| PDF file | Total 247 pages (File size: 4M) |
| Chip Manufacturer | NSC |
Geode™ GX1 Processor Series
Instruction Set
(Continued)
Table 8-31. MMX Instruction Set Summary (Continued)
MMX Instructions
PCMPEQD
Packed Dword Compare for Equality
MMX Register 2 with MMX Register 1
0F76 [11 mm1 mm2]
MMX reg 1 [dword] <--FFFF FFFFh-- if MMX reg 1 [dword] = MMX reg 2 [dword]
MMX reg 1 [dword]<--0000 0000h--if MMX reg 1[dword] NOT = MMX reg 2
[dword]
MMX reg [dword] <--FFFF FFFFh-- if memory[dword] = MMX reg [dword]
MMX reg [dword] <--0000 0000h-- if memory[dword] NOT = MMX reg [dword]
1/1
Opcode
Operation and Clock Count (Latency/Throughput)
Memory with MMX Register
0F76 [mod mm r/m]
1/1
PCMPEQW
Packed Word Compare for Equality
MMX Register 2 with MMX Register 1
Memory with MMX Register
0F75 [11 mm1 mm2]
0F75 [mod mm r/m]
MMX reg 1 [word] <--FFFFh-- if MMX reg 1 [word] = MMX reg 2 [word]
MMX reg 1 [word]<--0000h-- if MMX reg 1 [word] NOT = MMX reg 2 [word]
MMX reg [word] <--FFFFh-- if memory[word] = MMX reg [word]
MMX reg [word] <--0000h-- if memory[word] NOT = MMX reg [word]
1/1
1/1
PCMPGTB
Pack Compare Greater Than Byte
MMX Register 2 to MMX Register 1
Memory with MMX Register
0F64 [11 mm1 mm2]
0F64 [mod mm r/m]
MMX reg 1 [byte] <--FFh-- if MMX reg 1 [byte] > MMX reg 2 [byte]
MMX reg 1 [byte]<--00h-- if MMX reg 1 [byte] NOT > MMX reg 2 [byte]
MMX reg [byte] <--FFh-- if memory[byte] > MMX reg [byte]
MMX reg [byte] <--00h-- if memory[byte] NOT > MMX reg [byte]
1/1
1/1
PCMPGTD
Pack Compare Greater Than Dword
MMX Register 2 to MMX Register 1
0F66 [11 mm1 mm2]
MMX reg 1 [dword] <--FFFF FFFFh-- if MMX reg 1 [dword] > MMX reg 2 [dword]
MMX reg 1 [dword]<--0000 0000h--if MMX reg 1 [dword]NOT > MMX reg 2
[dword]
MMX reg [dword] <--FFFF FFFFh-- if memory[dword] > MMX reg [dword]
MMX reg [dword] <--0000 0000h-- if memory[dword] NOT > MMX reg [dword]
1/1
Memory with MMX Register
0F66 [mod mm r/m]
1/1
PCMPGTW
Pack Compare Greater Than Word
MMX Register 2 to MMX Register 1
Memory with MMX Register
PMADDWD
Packed Multiply and Add
MMX Register 2 to MMX Register 1
Memory to MMX Register
PMULHW
Packed Multiply High
MMX Register 2 to MMX Register 1
Memory to MMX Register
PMULLW
Packed Multiply Low
MMX Register 2 to MMX Register 1
Memory to MMX Register
POR
Bitwise OR
MMX Register 2 to MMX Register 1
Memory to MMX Register
PSLLD
Packed Shift Left Logical Dword
MMX Register 1 by MMX Register 2
MMX Register by Memory
MMX Register by Immediate
PSLLQ
Packed Shift Left Logical Qword
MMX Register 1 by MMX Register 2
MMX Register by Memory
MMX Register by Immediate
PSLLW
Packed Shift Left Logical Word
MMX Register 1 by MMX Register 2
MMX Register by Memory
MMX Register by Immediate
PSRAD
Packed Shift Right Arithmetic Dword
MMX Register 1 by MMX Register 2
MMX Register by Memory
MMX Register by Immediate
0FE2 [11 mm1 mm2] MMX reg 1 [dword] <--arith shift right, shifting in zeroes by MMX reg 2 [dword--]
0FE2 [mod mm r/m]
0F72 [11 100 mm] #
MMX reg [dword] <--arith shift right, shifting in zeroes by memory[dword]--
MMX reg [dword] <--arith shift right, shifting in zeroes by [im byte]--
1/1
1/1
1/1
0FF1 [11 mm1 mm2]
0FF1 [mod mm r/m]
0F71 [11 110mm] #
MMX reg 1 [word] <--shift left, shifting in zeroes by MMX reg 2 [word]--
MMX reg [word] <--shift left, shifting in zeroes by memory[word]--
MMX reg [word] <--shift left, shifting in zeroes by [im byte]--
1/1
1/1
1/1
0FF3 [11 mm1 mm2]
0FF3 [mod mm r/m]
0F73 [11 110 mm] #
MMX reg 1 [qword] <--shift left, shifting in zeroes by MMX reg 2 [qword]--
MMX reg [qword] <--shift left, shifting in zeroes by [qword]--
MMX reg [qword] <--shift left, shifting in zeroes by [im byte]--
1/1
1/1
1/1
0FF2 [11 mm1 mm2]
0FF2 [mod mm r/m]
0F72 [11 110 mm] #
MMX reg 1 [dword] <--shift left, shifting in zeroes by MMX reg 2 [dword]--
MMX reg [dword] <--shift left, shifting in zeroes by memory[dword]--
MMX reg [dword] <--shift left, shifting in zeroes by [im byte]--
1/1
1/1
1/1
0FEB [11 mm1 mm2] MMX reg 1 [qword] <--logic OR-- MMX reg 1 [qword], MMX reg 2 [qword]
0FEB [mod mm r/m]
MMX reg [qword] <--logic OR-- MMX reg [qword], memory[qword]
1/1
1/1
0FD5 [11 mm1 mm2] MMX reg 1 [word] <--lower bits-- MMX reg 1 [sign word] * MMX reg 2 [sign word]
0FD5 [mod mm r/m]
MMX reg 1 [word] <--lower bits-- memory [sign word] * Memory [sign word]
2/1
2/1
0FE5 [11 mm1 mm2] MMX reg 1 [word] <--upper bits-- MMX reg 1 [sign word] * MMX reg 2 [sign word]
0FE5 [mod mm r/m]
MMX reg 1 [word] <--upper bits-- memory [sign word] * Memory [sign word]
2/1
2/1
0FF5 [11 mm1 mm2]
0FF5 [mod mm r/m]
MMX reg 1 [dword] <--add-- [dword]<---- MMX reg 1 [sign word]*MMX reg 2[sign
word]
MMX reg 1 [dword] <--add-- [dword] <---- memory [sign word] * Memory [sign
word]
2/1
2/1
0F65 [11 mm1 mm2]
0F65 [mod mm r/m]
MMX reg 1 [word] <--FFFFh-- if MMX reg 1 [word] > MMX reg 2 [word]
MMX reg 1 [word]<--0000h-- if MMX reg 1 [word] NOT > MMX reg 2 [word]
MMX reg [word] <--FFFFh-- if memory[word] > MMX reg [word]
MMX reg [word] <--0000h-- if memory[word] NOT > MMX reg [word]
1/1
1/1
Revision 1.0
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