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VR4102 Datasheet(PDF) 674 Page - NEC

Part # VR4102
Description  64/32-bit Microprocessor
PDF  701 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

VR4102 Datasheet(HTML) 674 Page - NEC

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CHAPTER 27 CPU INSTRUCTION SET DETAILS
674
27.6 CPU INSTRUCTION OPCODE BIT ENCODING
The remainder of this chapter presents the opcode bit encoding for the CPU instruction set (ISA and extensions),
as implemented by the VR4102. Figure 27-2 lists the VR4102 Opcode Bit Encoding.
Figure 27-1. VR4102 Opcode Bit Encoding (1/2)
28...26
Opcode
31...29
0123
4567
0
SPECIAL
REGIMM
J
JAL
BEQ
BNE
BLEZ
BGTZ
1
ADDI
ADDIU
SLTI
SLTIU
ANDI
ORI
XORI
LUI
2COP0
SS
*
BEQL
BNEL
BLEZL
BGTZL
3
DADDI
H
DADDIU
H
LDL
H
LDR
H
****
4
LB
LH
LWL
LW
LBU
LHU
LWR
LWU
H
5
SB
SH
SWL
SW
SDL
H
SDR
H
SWR
CACHE
G
6*
SS
**
SS
LD
H
7*
SS
**
SS
SD
H
2...0
SPECIAL function
5...3
0123
4567
0
SLL
*
SRL
SRA
SLLV
*
SRLV
SRAV
1
JR
JALR
*
*
SYSCALL
BREAK
*
SYNC
2
MFHI
MTHI
MFLO
MTLO
DSLLV
H
*DSRLV
H
DSRAV
H
3
MULT
MULTU
DIV
DIVU
DMULT
H DMULTUH
DDIV
H
DDIVU
H
4
ADD
ADDU
SUB
SUBU
AND
OR
XOR
NOR
5
MADD16
DMADD16
SLT
SLTU
DADD
H
DADDU
H
DSUB
H
DSUBU
H
6
TGE
TGEU
TLT
TLTU
TEQ
*
TNE
*
7
DSLL
H
*
DSRL
H
DSRA
H
DSLL32
H
*
DSRL32
H DSRA32H
18...16
REGIMM rt
20...19
0123
4567
0
BLTZ
BGEZ
BLTZL
BGEZL
****
1
TGEI
TGEIU
TLTI
TLTIU
TEQI
*
TNEI
*
2
BLTZAL
BGEZAL
BLTZALL
BGEZALL
****
3
****
****



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