HT46R47 datasheet(41/45 Pages) HOLTEK

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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 execution, is discarded and a dummy cycle is re-

placed to get the proper instruction (2 cycles). Otherwise proceed with the

next instruction (1 cycle).

Operation

Skip if [m].i¹0

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

SUB A,[m]

Subtract data memory from the accumulator.

Description

The specified data memory is subtracted from the contents of the accumula-

tor, leaving the result in the accumulator.

Operation

ACC ¬ ACC+[m]+1

Affected flag(s)

TC2 TC1

ÖÖÖÖ

SUBM A,[m]

Subtract data memory from the accumulator.

Description

The specified data memory is subtracted from the contents of the accumula-

tor, leaving the result in the data memory.

Operation

[m] ¬ ACC+[m]+1

Affected flag(s)

TC2 TC1

ÖÖÖÖ

SUB A,x

Subtract immediate data from the accumulator.

Description

The immediate data specified by the code is subtracted from the contents of

the accumulator, leaving the result in the accumulator.

Operation

ACC ¬ ACC+x+1

Affected flag(s)

TC2 TC1

ÖÖÖÖ

HT46R47

Rev. 1.40

July 18, 2001

HT46R47 Datasheet(PDF) 41 Page - Holtek Semiconductor Inc

HT46R47 Datasheet(HTML) 41 Page - Holtek Semiconductor Inc

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