參數(shù)資料
型號: M34571G4
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機的CMOS
文件頁數(shù): 86/126頁
文件大?。?/td> 1627K
代理商: M34571G4
Rev.1.02
REJ03B0179-0102
May 25, 2007
Page 86 of 124
4571 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
SUPT
(Set UPT flag)
Instruc-
tion
code
0
D
9
D
0
1 2
Number of
words
Number of
cycles
Flag CY
Skip condition
0
0
1
0
1
1
0
0
0
5
9 16
1
1
-
-
Opera-
tion:
(UPTF)
1
Grouping:
Description: Sets (1) to the high-order bit reference enable flag UPTF.
Note:
When the table reference instruction (TABP p) is executed,
the high-order 2 bits of ROM reference data is transferred
to the low-order 2 bits of register D.
Other operation
SZB j
(Skip if Zero, Bit)
Instruc-
tion
code
0
D
9
D
0
j
Number of
words
Number of
cycles
Flag CY
Skip condition
0
0
0
1
0
0
0
j
2
0
2
j
16
1
1
-
(Mj(DP)) = 0
j = 0 to 3
Opera-
tion:
(Mj(DP)) = 0
j = 0 to 3
Grouping:
Description: Skips the next instruction when the contents of bit j (bit
specified by the value j in the immediate field) of M(DP) is
“0”.
Executes the next instruction when the contents of bit j of
M(DP) is “1”.
Bit operation
SZC
(Skip if Zero, Carry flag)
Instruc-
tion
code
0
0
D
9
D
0
1 2
Number of
words
Number of
cycles
Flag CY
Skip condition
0
0
1
0
1
1
1
0
2
F 16
1
1
-
(CY) = 0
Opera-
tion:
(CY) = 0
Grouping:
Description: Skips the next instruction when the contents of carry flag
CY is “0”.
After skipping, the CY flag remains unchanged.
Executes the next instruction when the contents of the CY
flag is “1”.
Arithmetic operation
SZD
(Skip if Zero, port D specified by register Y)
Instruc-
tion
code
0
0
0
0
1
D
9
D
0
0 2
Number of
words
Number of
cycles
Flag CY
Skip condition
0
0
1
0
0
2
4 16
2
2
-
(D(Y)) = 0
0
0
0
0
1
0
1
0
1
1 2
0
2
B 16 Grouping:
Description: Skips the next instruction when a bit of port D specified by
register Y is “0”. Executes the next instruction when the bit
is “1”.
Note:
(Y) = 0 to 4.
Do not execute this instruction if values except above are
set to register Y.
Input/Output operation
Opera-
tion:
(D(Y)) = 0
(Y) = 0 to 4
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