HT49R50 Holtek Semiconductor Inc, HT49R50 Datasheet - Page 47

• Manufacturer Part Number: HT49R50
• Description: 8-Bit Microcontroller
• Manufacturer: Holtek Semiconductor Inc

SET [m]
Description
Operation
Affected flag(s)
SET [m].i
Description
Operation
Affected flag(s)
SIZ [m]
Description
Operation
Affected flag(s)
SIZA [m]
Description
Operation
Affected flag(s)
Set data memory
Each bit of the specified data memory is set to one.
[m] ¬ FFH
Set bit of data memory
Bit ²i² of the specified data memory is set to one.
[m].i ¬ 1
Skip if increment data memory is zero
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).
Skip if ([m]+1)=0, [m] ¬ ([m]+1)
Increment data memory and place result in ACC, skip if zero
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).
Skip if ([m]+1)=0, ACC ¬ ([m]+1)
TC2
TC2
TC2
TC2
¾
¾
¾
¾
TC1
TC1
TC1
TC1
¾
¾
¾
¾
TO
TO
TO
TO
¾
¾
¾
¾
PD
PD
PD
PD
¾
¾
¾
¾
47
OV
OV
OV
OV
¾
¾
¾
¾
¾
¾
¾
¾
Z
Z
Z
Z
AC
AC
AC
AC
¾
¾
¾
¾
¾
¾
¾
¾
C
C
C
C
August 18, 1999
HT49C50