SX28AC75-ISLASHTQ datasheet(36/52 Pages) ETC

36 / 52 page

- 36 -

www.scenix.com

SX18AC/SX20AC/SX28AC/SX18AC75/SX20AC75/SX28AC75

Bitwise Operations

CLRB fr.bit

Clear Bit in fr (fr.bit = 0)

0100 bbbf ffff

none

SB fr.bit

Test Bit in fr and Skip if Set (test fr.bit and skip

next instruction if bit is 1)

1 or

2 (skip)

1 or

2 (skip)

0111 bbbf ffff

none

SETB fr.bit

Set Bit in fr (fr.bit = 1)

0101 bbbf ffff

none

SNB fr.bit

Test Bit in fr and Skip if Clear (test fr.bit and skip

next instruction if bit is 0)

1 or

2 (skip)

1 or

2 (skip)

0110 bbbf ffff

none

Data Movement Instructions

MOV fr,W

Move W to fr (fr = W)

0000 001f ffff

none

MOV W,fr

Move fr to W (W = fr)

0010 000f ffff

MOV W,fr-W

Move (fr-W) to W (W = fr - W); complement of

carry bit is subtracted if CF bit in FUSEX register

is cleared to 0

0000 100f ffff

C, DC, Z

MOV W,#lit

Move Literal to W (W = lit)

1100 kkkk kkkk

none

MOV W,/fr

Move Complement of fr to W (W = fr ^ FFh)

0010 010f ffff

MOV W,--fr

Move (fr-1) to W (W = fr - 1)

0000 110f ffff

MOV W,++fr

Move (fr+1) to W (W = fr + 1)

0010 100f ffff

MOV W,<<fr

Rotate fr Left through Carry and Move to W

(W = << fr)

0011 010f ffff

MOV W,>>fr

Rotate fr Right through Carry and Move to W

(W = >> fr)

0011 000f ffff

MOV W,<>fr

Swap High/Low Nibbles of fr and move to W

(W = <> fr)

0011 100f ffff

none

MOV W,M

Move MODE Register to W (W = MODE), high

nibble is cleared

0000 0100 0010

none

MOVSZ W,--fr

Move (fr-1) to W and Skip if Zero (W = fr -1 and

skip next instruction if result is zero)

1 or

2 (skip)

0010 110f ffff

none

MOVSZ W,++fr

Move (fr+1) to W and Skip if Zero (W = fr + 1 and

skip next instruction if result is zero)

1 or

2 (skip)

0011 110f ffff

none

MOV M,W

Move W to MODE Register (MODE = W)

0000 0100 0011

none

MOV M,#lit

Move Literal to MODE Register (MODE = lit)

0000 0101 kkkk

none

MOV !rx,W

Move W to Port Rx Control Register:rx <=> W

(exchange W and WKPND_B or CMP_B)

or rx

= W (move W to rx for all other port control reg-

isters)

0000 0000 0fff

none

MOV !OPTION, W Move W to OPTION Register (OPTION = W)

0000 0000 0010

none

TEST fr

Test fr for Zero (fr = fr to set or clear Z bit)

0010 001f ffff

Table 16-1. The SX Instruction Set (Continued)

Mnemonic,

Operands

Description

Cycles

(Compatible)

Cycles

(Turbo)

Opcode

Bits

Affected

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