System Control Instructions - Renesas H8 Series Hardware Manual

Section 2 CPU
2.5.7

System Control Instructions

Table 2.10 describes the system control instructions. Figure 2.9 shows their object code formats.
Table 2.10 System Control Instructions
Size *
Instruction

RTE

SLEEP
LDC B
STC B
ANDC B
ORC B
XORC B

NOP
Notes: * Size: Operand size
B: Byte
Rev. 6.00 Sep 12, 2006 page 42 of 526
REJ09B0326-0600
Function
Returns from an exception-handling routine
Causes a transition from active mode to a power-down mode. See
section 5, Power-Down Modes, for details.
Rs → CCR, #IMM → CCR
Moves immediate data or general register contents to the condition
code register
CCR → Rd
Copies the condition code register to a specified general register
CCR ∧ #IMM → CCR
Logically ANDs the condition code register with immediate data
CCR ∨ #IMM → CCR
Logically ORs the condition code register with immediate data
CCR ⊕ #IMM → CCR
Logically exclusive-ORs the condition code register with immediate
data
PC + 2 → PC
Only increments the program counter