FS91M68 datasheet(23/24 Pages) FORTUNE

23 / 24 page

FS91M68

Rev. 1.3

23/24

SUBWFC

Subtract W and Carry from f

Syntax:

SUBWFC

f, d

≤ f ≤ FFh

∈ [0,1]

Operation:

[Destination]

← [f] – [W] –C

‧

Flag Affected:

C, DC, Z

Description:

Subtract the content of the W

result is stored in the W register.

If d is 1, the result is stored back

in [f].

Cycle:

Example 1:

SUBWFC

OPERAND,

Before instruction:

OPERAND = 33h, W = 01h

C = 1

After instruction:

OPERAND = 32h, C = 1, Z =

Example 2:

SUBWFC

OPERAND,

Before instruction:

OPERAND = 02h, W = 01h

C = 0

After instruction:

OPERAND = 00h, C = 1, Z =

Example 3:

SUBWFC

OPERAND,

Before instruction:

OPERAND = 04h, W = 05h

C = 0

After instruction:

OPERAND = FEh, C = 0, Z = 0

XORLW

Exclusive OR literal with W

Syntax:

XORLW

≤ k ≤ FFh

Operation:

[W]

← [W] XOR k

Flag Affected:

Description:

Exclusive OR the content of the

W register and the eight-bit

literal "k". The result is stored in

the W register.

Cycle:

Example:

XORLW

5Fh

Before instruction:

W = ACh

After instruction:

W = F3h

XORWF

Exclusive OR W and f

Syntax:

XORWF

f, d

≤ f ≤ FFh

∈ [0,1]

Operation:

[Destination]

← [W] XOR [f]

Flag Affected:

Description:

Exclusive OR the content of the

W register and [f]. If d is 0, the

result is stored in the W register.

If d is 1, the result is stored back

in [f].

Cycle:

Example:

XORWF

OPERAND,

Before instruction:

OPERAND = 5Fh, W = ACh

After instruction:

OPERAND = F3h

FS91M68 Datasheet(PDF) 23 Page - Fortune Semiconductor Corp.

FS91M68 Datasheet(HTML) 23 Page - Fortune Semiconductor Corp.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Datasheet Download

Link URL