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VR4102 Datasheet(PDF) 613 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) 613 Page - NEC

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CHAPTER 27 CPU INSTRUCTION SET DETAILS
613
MFC0
Move From System Control Coprocessor
MFC0
MF
0 0 0 0 0
COP0
0 1 0 0 0 0
rt
0
0 0 0
0 0 0 0
0 0 0 0
31
26 25
21 20
16 15
0
6
555
11 10
11
rd
Format:
MFC0 rt, rd
Description:
The contents of coprocessor register
rd of the CP0 are loaded into general register rt.
When using a register used by the MFC0 by means of instructions before and after it, refer to Chapter 28 and
place the instructions in the appropriate location.
Operation:
32
T:
data <- CPR [0, rd]
T+1: GPR [rt] <- data
64
T:
data <- CPR [0, rd]
T+1: GPR [rt] <- (data31)
32 || data31...0
Exceptions:
Coprocessor unusable exception (user and supervisor mode if CP0 not enabled)



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