MDT2051
Instruction Code
Mnemonic
Operands
Function
Operating
Status
011001 trrrrrrr
INCR R, t
Increment register
R + 1→t
Z
011010 trrrrrrr
INCRSZ R, t Increment register, skip if zero R + 1→t
None
011011 trrrrrrr
ADDWR R, t Add W and register
W + R→t
C, HC, Z
011100 trrrrrrr
011101 trrrrrrr
SUBWR R, t Subtract W from register
DECR R, t Decrement register
R ﹣W→t or
(R+/W+1→t)
R ﹣1→t
C, HC, Z
Z
011110 trrrrrrr
DECRSZ R, t Decrement register, skip if zero R ﹣1→t
None
010010 trrrrrrr
ANDWR R, t AND W and register
R ∩ W→t
Z
110100 iiiiiiii
ANDWI i
AND W and immediate
i ∩ W→W
Z
010011 trrrrrrr
IORWR R, t Inclu. OR W and register
R ∪ W→t
Z
110101 iiiiiiii
IORWI i
Inclu. OR W and immediate
i ∪ W→W
Z
010100 trrrrrrr
XORWR R, t Exclu. OR W and register
R ⊕ W→t
Z
110110 iiiiiiii
XORWI i
Exclu. OR W and immediate
i ⊕ W→W
Z
011111 trrrrrrr
COMR R, t Complement register
/R→t
Z
010110 trrrrrrr
010101 trrrrrrr
010000 1xxxxxxx
RRR R, t
Rotate right register
RLR R, t
Rotate left register
CLRW
Clear working register
R(n) →R(n-1),
C
C→R(7), R(0)→C
R(n)→r(n+1),
C
C→R(0), R(7)→C
0→W
Z
010001 0rrrrrrr
CLRR R
Clear register
0→R
Z
0000bb brrrrrrr
BCR R, b Bit clear
0→R(b)
None
0010bb brrrrrrr
BSR R, b Bit set
1→R(b)
None
0001bb brrrrrrr
BTSC R, b Bit Test, skip if clear
Skip if R(b)=0
None
0011bb brrrrrrr
BTSS R, b Bit Test, skip if set
Skip if R(b)=1
None
100nnn nnnnnnnn
101nnn nnnnnnnn
LCALL n
LJUMP n
Long CALL subroutine
Long JUMP to address
n→PC,
PC+1→Stack
n→PC
None
None
110111 iiiiiiii
ADDWI i
Add immediate to W
W+i→W
C,HC,Z
110001 iiiiiiii
RTWI i
Return, place immediate to W
Stack→PC,i→W
None
111000 iiiiiiii
SUBWI i
Subtract W from immediate
i-W→W
C,HC,Z
010000 00001001
Note :
W
:
WT
:
TMODE :
CPIO
:
TF
:
PF
:
PC
:
OSC
:
RTFI
Reture from interrupt
Working register
Watchdog timer
TMODE mode register
Control I/O port register
Timer overflow flag
Power loss flag
Program Counter
Oscillator
b:
t:
0
1
R:
C:
HC :
Z:
Stack→PC,1→GIS
Bit position
Target
: Working register
: General register
General register address
Carry flag
Half carry
Zero flag
None
This specification are subject to be changed without notice. Any latest information please preview
http;//www.mdtic.com.tw
P. 9
2005/6 Ver. 1.9