HT82K68 datasheet(35/40 Pages) HOLTEK

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SET [m]

Set data memory

Description

Each bit of the specified data memory is set to 1.

Operation

[m] ¬ FFH

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

SET [m].i

Set bit of data memory

Description

Bit ²i² of the specified data memory is set to 1.

Operation

[m].i ¬ 1

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

SIZ [m]

Skip if increment data memory is zero

Description

The contents of the specified data memory are incremented by 1. If the result

is 0, the following instruction, fetched during the current instruction execu-

tion, is discarded and a dummy cycle is replaced to get the proper instruction

(2 cycles). Otherwise proceed with the next instruction (1 cycle).

Operation

Skip if ([m]+1)=0, [m] ¬ ([m]+1)

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

SIZA [m]

Increment data memory and place result in ACC, skip if 0

Description

The contents of the specified data memory are incremented by 1. If the result

is zero, the next instruction is skipped and the result is stored in the accumu-

lator. The data memory remains unchanged. If the result is 0, the following

instruction, fetched during the current instruction execution, is discarded

and a dummy cycle is replaced to get the proper instruction (2 cycles). Other-

wise proceed with the next instruction (1 cycle).

Operation

Skip if ([m]+1)=0, ACC ¬ ([m]+1)

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

HT82K68E

August 8, 2000

Preliminary

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