Preliminary
HT48R06A-1
SET [m]
Set data memory
Description
Operation
Each bit of the specified data memory is set to one.
[m] ¬ FFH
Affected flag(s)
TC2 TC1 TO PD OV
Z
AC
C
¾
¾
¾
¾
¾
¾
¾
¾
SET [m].i
Set bit of data memory
Description
Operation
Bit "i" of the specified data memory is set to one.
[m].i ¬ 1
Affected flag(s)
TC2 TC1 TO PD OV
Z
AC
C
¾
¾
¾
¾
¾
¾
¾
¾
SIZ [m]
Skip if increment data memory is zero
Description
The contents of the specified data memory are incremented by one. If the re-
sult is zero, the following instruction, fetched during the current instruction
execution, is discarded and a dummy cycle is replaced to get the proper in-
struction (two cycles). Otherwise proceed with the next instruction (one cy-
cle).
Operation
Skip if ([m]+1)=0, [m] ¬ ([m]+1)
Affected flag(s)
TC2 TC1 TO PD OV
Z
AC
C
¾
¾
¾
¾
¾
¾
¾
¾
SIZA [m]
Increment data memory and place result in ACC, skip if zero
Description
The contents of the specified data memory are incremented by one. If the re-
sult is zero, the next instruction is skipped and the result is stored in the ac-
cumulator. The data memory remains unchanged. If the result is zero, the
following instruction, fetched during the current instruction execution, is
discarded and a dummy cycle is replaced to get the proper instruction (two
cycles). Otherwise proceed with the next instruction (one cycle).
Operation
Skip if ([m]+1)=0, ACC ¬ ([m]+1)
Affected flag(s)
TC2 TC1 TO PD OV
Z
AC
C
¾
¾
¾
¾
¾
¾
¾
¾
39
February 25, 2000
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
