NEC PD754144 - Manual (Page 282)

CHAPTER 11 INSTRUCTION SET
282 User’s Manual U10676EJ3V0UM
BR BCDE
Function: PC 11-0
← BCDE
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
µPD754244 is 12 bits. The contents of PC are replaced by the contents of registers C,
D and E. Always set register B to 0000B.
11
PC
8
3 0
C
7 4
3 0
D
3 0
3 0
E
BR BCXA
Function: PC 11-0
← BCXA
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
µPD754244 is 12 bits. The contents of PC are replaced by the contents of registers C,
X and A. Always set register B to 0000B.
11
PC
8
3 0
C
7 4
3 0
X
3 0
3 0
A
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.