HT82K68 datasheet(22/40 Pages) HOLTEK

22 / 40 page

Mnemonic

Description

Flag Affected

Data Move

MOV A,[m]

MOV [m],A

MOV A,x

Move data memory to ACC

Move ACC to data memory

Move immediate data to ACC

None

Bit Operation

CLR [m].i

SET [m].i

Clear bit of data memory

Set bit of data memory

None

Branch

JMP addr

SZ [m]

SZA [m]

SZ [m].i

SNZ [m].i

SIZ [m]

SDZ [m]

SIZA [m]

SDZA [m]

CALL addr

RET

RET A,x

RETI

Jump unconditional

Skip if data memory is zero

Skip if data memory is zero with data movement to ACC

Skip if bit i of data memory is zero

Skip if bit i of data memory is not zero

Skip if increment data memory is zero

Skip if decrement data memory is zero

Skip if increment data memory is zero with result in ACC

Skip if decrement data memory is zero with result in ACC

Subroutine call

Return from subroutine

Return from subroutine and load immediate data to ACC

Return from interrupt

None

Table Read

TABRDC [m]

TABRDL [m]

Read ROM code (current page) to data memory and TBLH

Read ROM code (last page) to data memory and TBLH

None

Miscellaneous

NOP

CLR [m]

SET [m]

CLR WDT

CLR WDT1

CLR WDT2

SWAP [m]

SWAPA [m]

HALT

No operation

Clear data memory

Set data memory

Clear Watchdog Timer

Pre-clear Watchdog Timer

Swap nibbles of data memory

Swap nibbles of data memory with result in ACC

Enter power down mode

None

TO,PD

TO*,PD*

None

TO,PD

Note: x: 8-bit immediate data

m: 7-bit data memory address

A: Accumulator

i: 0~7 number of bits

addr: 12 bits program memory address

Ö: 0~7 number of bits

-: Flag(s) is not affected

*: Flag(s) may be affected by the execution status

HT82K68E

August 8, 2000

Preliminary

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