TSC80251 TEMIC [TEMIC Semiconductors], TSC80251 Datasheet - Page 118

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

Rev. C – May 7, 1999
DIV AB
Function:
Divide
Description:
Divides the unsigned 8–bit integer in the accumulator by the unsigned 8–bit integer in register B. The accumulator
receives the integer part of the quotient; register B receives the integer remainder. The CY and OV flags are cleared.
Exception: if register B contains 00h, the values returned in the accumulator and register B are undefined; the CY flag
is cleared and the OV flag is set.
For division by zero:
Example :
The accumulator contains 251 (0FBh or 11111011B) and register B contains 18 (12h or 00010010B). After executing
the instruction DIV AB the accumulator contains 13 (0Dh or 00001101B); register B contains 17 (11h or 00010001B),
since 251 = (13 x 18) + 17; and the CY and OV flags are clear.
[Encoding]
FLAGS :
FLAGS :
Hex Code in:
Binary Mode = [Encoding]
Source Mode = [Encoding]
1000
CY
CY
0
0
0100
AC
AC
?
OV
OV
1
Operation:
DIV
(A)
(B)
remainder (A)/(B)
quotient (A)/(B)
N
N
?
TSC80251
Z
Z
?
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