SAB80C517-M16 SIEMENS [Siemens Semiconductor Group], SAB80C517-M16 Datasheet - Page 198

• Manufacturer Part Number: SAB80C517-M16
• Description: 8-Bit CMOS Single-Chip Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

DIV
Function:
Description:
Example:
Operation:
Encoding:
Bytes:
Cycles:
Semiconductor Group
AB
Divide
DIV AB divides the unsigned eight-bit integer in the accumulator by the unsigned
eight-bit integer in register B. The accumulator receives the integer part of the
quotient; register B receives the integer remainder. The carry and OV flags will be
cleared.
Exception: If B had originally contained 00 H , the values returned in the accumulator
and B register will be undefined and the overflow flag will be set. The carry flag is
cleared in any case.
The accumulator contains 251 (0FB H or 11111011 B ) and B contains 18 (12 H or
00010010 B ). The instruction
DIV
will leave 13 in the accumulator (0D H or 00001101 B ) and the value 17 (11 H or
00010001 B ) in B, since 251 = (13x18) + 17. Carry and OV will both be cleared.
DIV
(A15-8)
(B7-0)
1
4
1 0 0 0
AB
0 1 0 0
(A) / (B)
199
Instruction Set