Renesas R8C/Tiny Series, Software Manual

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90
3.2 Functions
Chapter 3 Functions
MOVe
Transfer
[ Related Instructions ] LDE,STE,XCHG
[ Description Example ]
[ Selectable src/dest ]
[ Function ]
MOV MOV
[ Syntax ]
MOV.size (:format) src,dest
src dest
R0L/R0 R0H/R1 R1L/R2 R1H/R3 R0L/R0 R0H/R1 R1L/R2 R1H/R3
A0/A0
*1
A1/A1
*1
[A0] [A1] A0/A0
*1
A1/A1
*1
[A0] [A1]
dsp:8[A0] dsp:8[A1] dsp:8[SB] dsp:8[FB] dsp:8[A0] dsp:8[A1] dsp:8[SB] dsp:8[FB]
dsp:16[A0] dsp:16[A1] dsp:16[SB] abs16 dsp:16[A0] dsp:16[A1] dsp:16[SB] abs16
dsp:20[A0] dsp:20[A1] abs20 #IMM *2 dsp:20[A0] dsp:20[A1] abs20
R2R0 R3R1 A1A0 dsp:8[SP]
*3
R2R0 R3R1 A1A0 dsp:8[SP]
*2 *3
(See the next page for
src
/
dest
classified by format.)
MOV.B:S #0ABH,R0L
MOV.W #–1,R2
G , Q , Z , S
(Can be specified)
B , W
[ Operation ]
dest src
• This instruction transfers
src
to
dest
.
• If
dest
is an A0 or A1 when the size specifier (.size) you selected is (.B),
src
is zero-expanded to
transfer data in 16 bits. If
src
is an A0 or A1, data is transferred from the 8 low-order bits of A0 or A1.
[ Instruction Code/Number of Cycles ]
Page=193
[ Flag Change ]
U I O B S Z D C
Conditions
S : The flag is set when the transfer resulted in MSB of dest = 1; otherwise cleared.
Z : The flag is set when the transfer resulted in 0; otherwise cleared.
Flag
Change
*1 If you specify (.B) for the size specifier (.size), you cannot choose A0 or A1 for
src
and
dest
simulta-
neously.
*2 If
src
is #IMM, you cannot choose dsp:8 [SP] for
dest
.
*3 Operation is performed on the stack pointer indicated by the U flag. You cannot choose dsp:8 [SP] for
src
and
dest
simultaneously.