Chapter 18 Appendices
XVIII - 18
Instruction Set
MN101C SERIES INSTRUCTION SET
Group
Mnemonic
Operation
Flag
VF NF CF ZF
Code
Size
Cycle Re-
peat
Machine Code
Notes
1
2345
6789
10
11
Exten
sion
*1
d4 sign-extension
*2
d7 sign-extension
*3
d11 sign-extension
NOT Dn
NOT
_
Dn
→Dn=
00
32
0010 10Dn
0010
ASR Dn
ASR
Dn.msb
→temp,Dn.lsb→CF
0--
32
0011 10Dn
0010
Dn>>1
→Dn,temp→Dn.msb
LSR Dn
LSR
Dn.lsb
→CF,Dn>>1→Dn
00
32
0011 11Dn
0010
0
→Dn.msb
ROR Dn
ROR
Dn.Isb
→temp,Dn>>1→Dn
0
32
0010 11Dn
0010
CF
→Dn.msb,temp→CF
Bit manipulation instructions
BSET (io8)bp
BSET
mem8(IOTOP+io8)&bpdata...PSW 00
55
1000 0bp. <io8
...>
0011
1
→mem8(IOTOP+io8)bp
BSET (abs8)bp
mem8(abs8)&bpdata...PSW
00
44
1011 0bp. <abs 8..>
1
→mem8(abs8)bp
BSET (abs16)bp
mem8(abs16)&bpdata...PSW
00
76
1100 0bp. <abs 16..
....
...>
0011
1
→mem8(abs16)bp
BCLR (io8)bp
BCLR
mem8(IOTOP+io8)&bpdata...PSW 00
55
1000 1bp. <io8
...>
0011
0
→mem8(IOTOP+io8)bp
BCLR (abs8)bp
mem8(abs8)&bpdata...PSW
00
44
1011 1bp. <abs 8..>
0
→mem8(abs8)bp
BCLR (abs16)bp
mem8(abs16)&bpdata...PSW
00
76
1100 1bp. <abs 16..
....
...>
0011
0
→mem8(abs16)bp
BTST imm8,Dm
BTST
Dm&imm8...PSW
00
53
0000 11Dm <#8.
...>
0010
BTST (abs16)bp
mem8(abs16)&bpdata...PSW
00
75
1101 0bp. <abs 16..
....
...>
0011
Branch instructions
BEQ label
Bcc
if(ZF=1), PC+3+d4(label)+H
→PC -- -- -- -- 3 2/3
1001 000H <d4>
if(ZF=0), PC+3
→PC
BEQ label
*2
if(ZF=1), PC+4+d7(label)+H
→PC -- -- -- -- 4 2/3
1000 1010 <d7.
...H
if(ZF=0), PC+4
→PC
BEQ label
*3
if(ZF=1), PC+5+d11(label)+H
→PC -- -- -- -- 5 2/3
1001 1010 <d11
....
...H
if(ZF=0), PC+5
→PC
BNE label
*1
1
if(ZF=0), PC+3+d4(label)+H
→PC -- -- -- -- 3 2/3
1001 001H <d4>
if(ZF=1), PC+3
→PC
BNE label
if(ZF=0), PC+4+d7(label)+H
→PC -- -- -- -- 4 2/3
1000 1011 <d7.
...H
if(ZF=1), PC+4
→PC
BNE label
if(ZF=0), PC+5+d11(label)+H
→PC -- -- -- -- 5 2/3
1001 1011 <d11
....
...H
if(ZF=1), PC+5
→PC
BGE label
if((VF^NF)=0),PC+4+d7(label)+H
→PC -- -- -- -- 4 2/3
1000 1000 <d7.
...H
if((VF^NF)=1),PC+4
→PC
*2
*3
*2
BGE label
if((VF^NF)=0),PC+5+d11(label)+H
→PC -- -- -- -- 5 2/3
1001 1000 <d11
....
...H
if((VF^NF)=1),PC+5
→PC
BCC label
if(CF=0),PC+4+d7(label)+H
→PC -- -- -- -- 4 2/3
1000 1100 <d7.
...H
if(CF=1), PC+4
→PC
BCC label
*3
*2
*3
if(CF=0), PC+5+d11(label)+H
→PC -- -- -- -- 5 2/3
1001 1100 <d11
....
...H
if(CF=1), PC+5
→PC
BCS label
if(CF=1),PC+4+d7(label)+H
→PC -- -- -- -- 4 2/3
1000 1101 <d7.
...H
if(CF=0), PC+4
→PC
BCS label
if(CF=1), PC+5+d11(label)+H
→PC -- -- -- -- 5 2/3
1001 1101 <d11
....
...H
if(CF=0), PC+5
→PC
BLT label
if((VF^NF)=1),PC+4+d7(label)+H
→PC -- -- -- -- 4 2/3
1000 1110 <d7.
...H
*2
*3
*2
BLT label
if((VF^NF)=1),PC+5+d11(label)+H
→PC -- -- -- -- 5 2/3
1001 1110 <d11
....
...H
if((VF^NF)=0),PC+5
→PC
BLE label
if((VF^NF)|ZF=1),PC+4+d7(label)+H
→PC -- -- -- -- 4 2/3
1000 1111 <d7.
...H
if((VF^NF)|ZF=0),PC+4
→PC
BLE label
if((VF^NF)|ZF=1),PC+5+d11(label)+H
→PC -- -- -- -- 5 2/3
1001 1111 <d11
....
...H
if((VF^NF)|ZF=0),PC+5
→PC
BGT label
if((VF^NF)|ZF=0),PC+5+d7(label)+H
→PC -- -- -- -- 5 3/4
0010 0001 <d7.
...H
0010
if((VF^NF)|ZF=1),PC+5
→PC
*3
*2
*3
*2
if((VF^NF)=0),PC+4
→PC