Renesas rl78 User Manual

Page of 1004
 
RL78/G1A 
 
CHAPTER  3   CPU  ARCHITECTURE 
R01UH0305EJ0200  Rev.2.00 
 
 
81  
Jul 04, 2013 
3.3.4  Register direct addressing 
 
[Function] 
Register direct addressing stores in the program counter (PC) the contents of a general-purpose register pair 
(AX/BC/DE/HL) and CS register of the current register bank specified with the instruction word as 20-bit data, and 
specifies the program address.  Register direct addressing can be applied only to the CALL AX, BC, DE, HL, and BR 
AX instructions.   
 
Figure 3-17.  Outline of Register Direct Addressing 
 
OP code
PC
S
PC
PC
H
PC
L
CS
rp
Instruction code