TSC80251 TEMIC [TEMIC Semiconductors], TSC80251 Datasheet - Page 136

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

Rev. C – May 7, 1999
JMP @A+DPTR
Function:
Jump indirect
Description:
Adds the 8–bit unsigned content of the accumulator with the 16–bit data pointer and load the resulting sum into the
lower 16 bits of the program counter. This is the address for subsequent instruction fetches. The contents of the
accumulator and the data pointer are not affected.
Example :
The accumulator contains an even number from 0 to 6. The following sequence of instructions branchs to one of four
AJMP instructions in a jump table starting at JMP_TBL :
If the accumulator contains 04h at the start this sequence, execution jumps to LABEL2. Remember that AJMP is a
two–byte instruction, so the jump instructions start at every other address.
[Encoding]
FLAGS :
Hex Code in:
Binary Mode = [Encoding]
Source Mode = [Encoding]
0111
MOV
JMP
AJMP
AJMP
AJMP
AJMP
CY
_
DPTR,#JMP_TBL
@A+DPTR
LABEL0
LABEL1
LABEL2
LABEL3
0011
AC
_
OV
_
Operation:
JMP
(PC.15:0)
(A) + (DPTR)
N
_
TSC80251
Z
_
5.91