TSC80251 TEMIC [TEMIC Semiconductors], TSC80251 Datasheet - Page 60

• Manufacturer Part Number: TSC80251
• Manufacturer: TEMIC [TEMIC Semiconductors]

Rev. C – May 7, 1999
Notes:
1.
2.
3.
4.
5.
6.
Jump if bit
Jump if not bit
Jump if bit and clear
Jump if accumulator is zero
Jump if accumulator is not zero JNZ rel
Compare and jump if not equal CJNE <src1>, <src2>, rel
Decrement and jump if not zero DJNZ <dest>, rel
JB
JNB
JBC
JZ
JNZ
CJNE
CJNE
DJNZ
Mnemoni
Mnemon
A shaded cell denotes an instruction in the C51 Architecture.
States are given as jump not-taken/taken.
If this instruction addresses an I/O Port (Px, x= 0-3), add 1 to the number of states. Add 2 if it addresses a Peripheral SFR.
If this instruction addresses an I/O Port (Px, x= 0-3), add 2 to the number of states. Add 3 if it addresses a Peripheral SFR.
If this instruction addresses an I/O Port (Px, x= 0-3), add 3 to the number of states. Add 5 if it addresses a Peripheral SFR.
In internal execution only, add 1 to the number of states of the ‘jump taken’ if the destination address is internal and odd.
c
bit51, rel
bit, rel
bit51, rel
bit, rel
bit51, rel
bit, rel
rel
rel
A, dir8, rel
A, #data, rel
Rn, #data, rel
@Ri, #data,
rel
Rn, rel
dir8, rel
<src>
<dest>,
<dest>,
(1)
Table 5.19. Summary of Conditional Jump Instructions (2/2)
Jump if direct bit is set
Jump if direct bit of 8-bit address location
is set
Jump if direct bit is not set
Jump if direct bit of 8-bit address location
is not set
Jump if direct bit is set & clear bit
Jump if direct bit of 8-bit address location
is set and clear
Jump if ACC is zero
Jump if ACC is not zero
Compare direct address to ACC and jump
if not equal
Compare immediate to ACC and jump if
not equal
Compare immediate to register and jump
if not equal
Compare immediate to indirect and jump
if not equal
Decrement register and jump if not zero
Decrement direct address and jump if not
zero
JB <src>, rel
JNB <src>, rel
JBC <dest>, rel
JZ rel
Comments
Comments
(PC)
IF [
IF [(A)
IF [src opnd1 < src opnd2] THEN (CY)
IF [src opnd1 src opnd2] THEN (CY)
IF [src opnd1 src opnd2] THEN (PC)
(PC)
IF [src opnd= 1] THEN (PC)
(PC)
IF [src opnd= 0] THEN (PC)
(PC)
IF [dest opnd= 1] THEN
dest opnd
(PC)
(PC)
IF [(A)= 0] THEN (PC)
(PC)
(PC)
(Z)] THEN (PC)
(PC) + size (instr); dest opnd
(PC) + size (instr);
(PC) + size (instr);
(PC) + size (instr);
(PC) + rel
(PC) + size (instr);
(PC) + size (instr);
(PC) + size (instr);
0] THEN (PC)
0
Bytes
Binary Mode
3
5
3
5
3
5
2
2
3
3
3
3
2
3
7/10
2/5
4/7
2/5
4/7
4/7
2/5
3/6
(PC) + rel
States
2/5
2/5
2/5
2/5
3/6
2/5
TSC80251
(PC) + rel
(3)(6)
(3)(6)
(3)(6)
(3)(6)
(5)(6)
(3)(6)
(4)(6)
(PC) + rel
(5)(6)
(6)
(6)
(6)
(6)
(6)
(6)
(2)
(PC) + rel
(PC) + rel
Bytes
Source Mode
3
4
3
4
3
4
2
2
3
3
4
4
3
3
dest opnd –1;
(PC) + rel
1
0
2/5
3/6
2/5
4/7
6/9
2/5
3/6
States
3/6
2/5
2/5
2/5
3/6
4/7
3/6
(3)(6)
(3)(6)
(3)(6)
(5)(6)
(5)(6)
(3)(6)
(4)(6)
(3)
(6)
(6)
(6)
(6)
(6)
(6)
(2)
5.15