Renesas R8C/Tiny Series Software Manual page 102

Chapter 3 Functions
LDC
[ Syntax ]
LDC src,dest
[ Operation ]
dest src
[ Function ]
• This instruction transfers
memory capacity is 2 bytes.
• If the destination is INTBL or INTBH, make sure that bytes are transferred in succession.
• No interrupt requests are accepted immediately after this instruction.
[ Selectable src/dest ]
R0L/R0 R0H/R1
A0/A0 A1/A1
dsp:8[A0] dsp:8[A1]
dsp:16[A0] dsp:16[A1]
dsp:20[A0] dsp:20[A1]
R2R0 R3R1
*1 Operation is performed on the stack pointer indicated by the U flag.
[ Flag Change ]
U I O B
Flag
*2 *2 *2 *2 *2 *2 *2 *2
Change
[ Description Example ]
LDC R0,SB
LDC A0,FB
[ Related Instructions ]
Transfer to control register
LoaD Control register
src
to the control register indicated by
src
R1L/R2 R1H/R3
[A0] [A1]
dsp:8[SB] dsp:8[FB]
dsp:16[SB] abs16
abs20 #IMM
A1A0
S Z D C
*2 The flag changes only when
POPC,PUSHC,STC,LDINTB
[ Instruction Code/Number of Cycles ]
dest
. If
dest
FB SB
FLG INTBH
85
3.2 Functions
LDC
Page=189
src
is memory, the required
*1
SP ISP
INTBL
dest
is FLG.