31 movb move byte from source to destination – Texas Instruments MSP50C614 User Manual
Page 214
Individual Instruction Descriptions
4-122
4.14.31
MOVB
Move Byte From Source to Destination
Syntax
[label]
name
dest, src
Clock,
clk
Word,
w
With RPT,
clk
Class
MOVB
A
n, {adrs}
Table 4–46
Table 4–46
1b
MOVB
{
adrs}, An
Table 4–46
Table 4–46
1b
MOVB
A
n, imm8
1
1
N/R
2a
MOVB
MR,
imm8
1
1
N/R
2a
MOVB
R
x, imm8
1
1
N/R
2b
Execution
dest
⇐
src
PC
⇐
PC +
w
Flags Affected
dest is An:
OF, SF, ZF, CF are set accordingly
dest is Rx:
RCF, RZF are set accordingly
dest is {adrs}:
XSF, XZF are set accordingly
src is {adrs}
TAG bit is set accordingly
Opcode
Instructions
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
MOVB A
n, {adrs}
0
1
0
0
1
1
0
A
n
adrs
x
dma16 (for direct) or offset16 (long relative) [see section 4.13]
MOVB {
adrs}, An
0
1
0
1
0
0
0
A
n
adrs
x
dma16 (for direct) or offset16 (long relative) [see section 4.13]
MOVB A
n, imm8
1
0
1
0
0
0
1
A
n
imm8
MOVB MR,
imm8
1
0
1
0
1
1
1
A
n
imm8
MOVB R
x, imm8
1
0
1
1
1
0
k4
k3
k2
k7
k6
k5
R
x
k1
k0
Description
Copy value of unsigned
src byte to dest byte.
Syntax
Description
MOVB A
n, {adrs}
Move data memory byte to A
n
†
MOVB {
adrs}, An
Move A
n byte to data memory
MOVB A
n, imm8
Move immediate byte to A
n
†
MOVB MR,
imm8
Move immediate byte to multiply register (MR)
‡
MOVB R
x, imm8
Move immediate byte to R
x
† Zeros loaded to upper 8 bits of An.
‡ Status flags are not modified
See Also
MOVU, MOV, MOVT, MOVBS, MOVS
Example 4.14.29.1
MOVB A0, *R2
Copy data memory byte pointed by R2 to accumulator A0.