NEC PD754144 User Manual page 282

4-bit single-chip microcontrollers
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BR BCDE
Function: PC
BCDE
11-0
Example
To branch to an address specified by the contents of the program counter replaced by the contents of registers
B, C, D, and E
However, the PC of the µ PD754244 is 12 bits. The contents of PC are replaced by the contents of registers C,
D and E. Always set register B to 0000B.
BR BCXA
Function: PC
BCXA
11-0
Example
To branch to an address specified by the contents of the program counter replaced by the contents of registers
B, C, X, and A
However, the PC of the µ PD754244 is 12 bits. The contents of PC are replaced by the contents of registers C,
X and A. Always set register B to 0000B.
TBR addr
Function:
This is an assembler directive for table definition by the GETI instruction. It is used to replace a 3-byte BR !addr
instruction with a 1-byte GETI instruction. Describe 12-bit address data as addr. For details, refer to RA75X
Assembler Package Language User's Manual.
282
CHAPTER 11 INSTRUCTION SET
11
8
7
4
PC
3
0
3
0
C
D
11
8
7
4
PC
3
0
3
0
C
X
User's Manual U10676EJ3V0UM
3
0
3
0
E
3
0
3
0
A

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