ELAN Home Systems EM78P458 - Manual (Page 54)

EM78P458/459
OTP ROM
INSTRUCTION BINARY HEX MNEMONIC OPERATION STATUS AFFECTED
0 0011 10rr rrrr 03rr ADD A,R A + R → A Z,C,DC
0 0011 11rr rrrr 03rr ADD R,A A + R → R Z,C,DC
0 0100 00rr rrrr 04rr MOV A,R R → A Z
0 0100 01rr rrrr 04rr MOV R,R R → R Z
0 0100 10rr rrrr 04rr COMA R /R → A Z
0 0100 11rr rrrr 04rr COM R /R → R Z
0 0101 00rr rrrr 05rr INCA R R+1 → A Z
0 0101 01rr rrrr 05rr INC R R+1 → R Z
0 0101 10rr rrrr 05rr DJZA R R-1 → A, skip if zero None
0 0101 11rr rrrr 05rr DJZ R R-1 → R, skip if zero None
0 0110 00rr rrrr 06rr RRCA R
R(n) → A(n-1),
R(0) → C, C → A(7)
C
0 0110 01rr rrrr 06rr RRC R
R(n) → R(n-1),
R(0) → C, C → R(7)
C
0 0110 10rr rrrr 06rr RLCA R
R(n) → A(n+1),
R(7) → C, C → A(0)
C
0 0110 11rr rrrr 06rr RLC R
R(n) → R(n+1),
R(7) → C, C → R(0)
C
0 0111 00rr rrrr 07rr SWAPA R
R(0-3) → A(4-7),
R(4-7) → A(0-3)
None
0 0111 01rr rrrr 07rr SWAP R R(0-3) ↔ R(4-7) None
0 0111 10rr rrrr 07rr JZA R R+1 → A, skip if zero None
0 0111 11rr rrrr 07rr JZ R R+1 → R, skip if zero None
0 100b bbrr rrrr 0xxx BC R,b 0 → R(b) None <Note2>
0 101b bbrr rrrr 0xxx BS R,b 1 → R(b) None <Note3>
0 110b bbrr rrrr 0xxx JBC R,b if R(b)=0, skip None
0 111b bbrr rrrr 0xxx JBS R,b if R(b)=1, skip None
1 00kk kkkk kkkk 1kkk CALL k
PC+1 → [SP],
(Page, k) → PC
None
1 01kk kkkk kkkk 1kkk JMP k (Page, k) → PC None
1 1000 kkkk kkkk 18kk MOV A,k k → A None
1 1001 kkkk kkkk 19kk OR A,k A ∨ k → A Z
1 1010 kkkk kkkk 1Akk AND A,k A & k → A Z
1 1011 kkkk kkkk 1Bkk XOR A,k A ⊕ k → A Z
1 1100 kkkk kkkk 1Ckk RETL k
k → A,
[Top of Stack] → PC
None
1 1101 kkkk kkkk 1Dkk SUB A,k k-A → A Z,C,DC
1 1110 0000 0001 1E01 INT
PC+1 → [SP],
001H → PC
None
1 1111 kkkk kkkk 1Fkk ADD A,k k+A → A Z,C,DC
0 0000 0010 0000 0020 TBL
R2+A → R2
Bits 8~9 of R2 unchanged
Z,C,DC
<Note 1> This instruction is applicable to IOC50~IOC60, IOC90~IOCF0, IOC51~IOCF1 only.
<Note 2> This instruction is not recommended for RF operation.
<Note 3> This instruction cannot operate under RF.
This specification is subject to change without prior notice. 07.01.2003 (V1.3) 54