Instruction Definition - Holtek HT827A0 Manual

Instruction Definition

ADC A,[m] Add data memory and carry to accumulator
Description The contents of the specified data memory accumulator and carry flag are
added simultaneously, leaving the result in the accumulator.
Operation
ACC ¬ ACC+[m]+C
Affected flag(s)
TC2
¾
ADCM A,[m] Add accumulator and carry to data memory
Description The contents of the specified data memory accumulator and carry flag are
added simultaneously, leaving the result in the specified data memory.
Operation
[m] ¬ ACC+[m]+C
Affected flag(s)
TC2
¾
ADD A,[m] Add data memory to accumulator
Description The contents of the specified data memory and accumulator are added. The
result is stored in the accumulator.
Operation ACC ¬ ACC+[m]
Affected flag(s)
TC2
¾
ADD A,x Add immediate data to accumulator
Description The contents of the accumulator and specified data are added, leaving the re-
sult in the accumulator.
Operation ACC ¬ ACC+x
Affected flag(s)
TC2
¾
TC1 TO PD OV
¾ ¾ ¾ Ö
TC1 TO PD OV
¾ ¾ ¾ Ö
TC1 TO PD OV
¾ ¾ ¾ Ö
TC1 TO PD OV
¾ ¾ ¾ Ö
31
HT827A0
Z AC C
Ö Ö Ö
Z AC C
Ö Ö Ö
Z AC C
Ö Ö Ö
Z AC C
Ö Ö Ö
March 15, 2000