4501_M Datasheet, PDF (85/212 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES

4501 Group
HARDWARE
INSTRUCTIONS
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
SB j (Set Bit)
Instruction
code
D9
D0
Number of Number of Flag CY
00010111j
j
0
2
5
C
+j ₁₆
words
1
cycles
1
–
Skip condition
–
Operation:
(Mj(DP)) ← 0
j = 0 to 3
Grouping: Bit operation
Description: Sets (1) the contents of bit j (bit specified by
the value j in the immediate field) of M(DP).
SC (Set Carry flag)
Instruction
code
D9
D0
Number of Number of Flag CY
0000000111
007
words
cycles
2
16
1
1
1
Skip condition
–
Operation: (CY) ← 1
Grouping: Arithmetic operation
Description: Sets (1) to carry flag CY.
SCP (Set Port C)
Instruction
code
D9
D0
Number of Number of Flag CY
1010001101
28D
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (C) ← 1
Grouping: Input/Output operation
Description: Sets (1) to port C.
SD (Set port D specified by register Y)
Instruction
code
D9
D0
Number of Number of Flag CY
0000010101
015
words
cycles
2
16
1
1
–
Skip condition
–
Operation:
(D(Y)) ← 1
(Y) = 0 to 3
Grouping:
Description:
Note:
Input/Output operation
Sets (1) to a bit of port D specified by register Y.
Set 0 to 3 to register Y because port D is
four ports (D0–D3).
When values except above are set to regis-
ter Y, this instruction is equivalent to the
NOP instruction.
Rev.2.01 Feb 07, 2005
REJ09B0192-0201
1-73