參數(shù)資料
型號: UPD70433R-12
廠商: NEC Corp.
元件分類: 16位微控制器
英文描述: V55PITM 16-BIT MICROPROCESSOR
中文描述: V55PITM 16位微處理器
文件頁數(shù): 83/166頁
文件大小: 772K
代理商: UPD70433R-12
83
μ
PD70433
Table 17-4. Flag Operation Legend
Identifier
Description
(Blank)
0
1
×
U
R
No change
Cleared to 0
Set to 1
Set or cleared depending on result
Undefined
Previously saved value is restored
Table 17-5. Memory Addressing
mem
mod
00
01
10
000
BW + IX
BW + IX + disp8
BW + IX + disp16
001
BW + IY
BW + IY + disp8
BW + IY + disp16
010
BP + IX
BP + IX + disp8
BP + IX + disp16
011
BP + IY
BP + IY + disp8
BP + IY + disp16
100
IX
IX + disp8
IX + disp16
101
IY
IY + disp8
IY + disp16
110
Direct address
BP + disp8
BP + disp16
111
BW
BW + disp8
BW + disp16
Note
When BP is used in memory addressing other than in a primitive instruction, the default segment register
is SS. When BP is not used, the default segment register is DS0.
In primitive instruction memory addressing, the destination block default segment register is DS1. In
memory addressing, the source block default segment register is DS0.
Table 17-6. 8/16-Bit General Register Selection
Table 17-7. Segment Register Selection
reg
W = 0
W = 1
sreg
000
AL
AW
00
DS1
001
CL
CW
01
PS
010
DL
DW
10
SS
011
BL
BW
11
DS0
100
AH
SP
101
CH
BP
110
DH
IX
111
BH
IY
xsreg
10
DS3/VPC
11
DS2
Table 17-8. Extended Segment Register Selection
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