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HD64F3337YCP16V Datasheet, PDF (84/749 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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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
Instruction
RTE
SLEEP
LDC
Size*
â
â
B
STC
B
ANDC
B
ORC
B
XORC
B
NOP
â
Note: * Size: Operand size
B: Byte
Function
Returns from an exception-handling routine.
Causes a transition to the power-down state.
Rs â CCR, #imm â CCR
Moves immediate data or general register contents to the condition
code register.
CCR â Rd
Copies the condition code register to a specified general register.
CCR ⧠#imm â CCR
Logically ANDs the condition code register with immediate data.
CCR ⨠#imm â CCR
Logically ORs the condition code register with immediate data.
CCR â #imm â CCR
Logically exclusive-ORs the condition code register with immediate
data.
PC + 2 â PC
Only increments the program counter.
15
87
op
0
RTE, SLEEP, NOP
15
87
op
0
rn
LDC, STC (Rn)
15
op
87
IMM
0
ANDC, ORC,
XORC, LDC (#xx:8)
Legend:
op: Operation field
rn: Register field
IMM: Immediate data
Figure 2.9 System Control Instruction Codes
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