HT48C10 datasheet(45/59 Pages) HOLTEK

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SNZ [m].i

Skip if bit “i” of the data memory is not zero

Description

If bit “i” of the specified data memory is not zero, the next instruction is

skipped. If bit “i” of the data memory is not 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).

Operation

Skip if [m].i

≠0

Affected flag(s)

TC2

TC1

–

––

–––

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

–––

–

√√

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

–––

–

√√

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

–––

–

√√

HT48CXX/HT48RXX

25th May ’99

HT48C10 데이터시트(PDF) 45 Page - Holtek Semiconductor Inc

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