HT46R23 datasheet(38/42 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 0.

Description

The contents of the specified data memory are incremented by 1. If the result is 0, the follow-

ing instruction, fetched during the current instruction execution, is discarded and a dummy cy-

cle 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 0, the next in-

struction is skipped and the result is stored in the accumulator. The data memory remains un-

changed. 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).

Otherwise proceed with the next instruction (1 cycle).

Operation

Skip if ([m]+1)=0, ACC ¬ ([m]+1)

Affected flag(s)

TC2

TC1

¾¾¾¾¾¾

SNZ [m].i

Skip if bit ²i² of the data memory is not 0.

Description

If bit ²i² of the specified data memory is not 0, the next instruction is skipped. If bit ²i² of the

data memory is not 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). Oth-

erwise proceed with the next instruction (1 cycle).

Operation

Skip if [m].i¹0

Affected flag(s)

TC2

TC1

¾¾¾¾¾¾

HT46R23

Rev. 1.30

August 17, 2001

HT46R23 датащи(PDF) 38 Page - Holtek Semiconductor Inc

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