4509 Datasheet, PDF (107/142 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4509 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
TBA (Transfer data to register B from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
0000001110
00E
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (B) ← (A)
Grouping: Register to register transfer
Description: Transfers the contents of register A to regis-
ter B.
TC1A (Transfer data to register C1 from Accumulator)
Instruction D9
D0
code
1010101000
2A
2
8
16
Number of
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation: (C1) ← (A)
Grouping: Input/Output operation
Description: Transfers the contents of register A to port
output structure control register C1.
TDA (Transfer data to register D from Accumulator)
Instruction
code
D9
D0
Number of Number of Flag CY
0000101001
029
words
cycles
2
16
1
1
–
Skip condition
–
Operation: (DR2–DR0) ← (A2–A0)
Grouping: Register to register transfer
Description: Transfers the contents of the low-order 3
bits (A2–A0) of register A to register D.
TEAB (Transfer data to register E from Accumulator and register B)
Instruction
code
D9
D0
Number of
0000011010
01A
2
16
words
1
Number of
cycles
1
Flag CY
–
Skip condition
–
Operation:
(E7–E4) ← (B)
(E3–E0) ← (A)
Grouping: Register to register transfer
Description: Transfers the contents of register B to the
high-order 4 bits (E3–E0) of register E, and
the contents of register A to the low-order 4
bits (E3–E0) of register E.
Rev.1.02 2006.12.22 page 107 of 140
REJ03B0147-0102