ST7LITE25F2 datasheet(117/166 Pages) STMICROELECTRONICS

117 / 166 page

ST7LITE20F2 ST7LITE25F2 ST7LITE29F2

Instruction set

Doc ID 8349 Rev 5

117/166

MUL

Multiply

X,A = X * A

A, X, Y

X, Y, A

−−

−

NEG

Negate (2's compl)

neg $10

reg, M

−−

−

NZC

NOP

No Operation

−

−−−

−−

OR operation

A = A + M

−−

−

POP

Pop from the Stack

pop reg

pop CC

reg

−−−

−−

PUSH

Push onto the Stack

push Y

reg, CC

−−−

−−

RCF

Reset carry flag

C = 0

−

−−−

−

RET

Subroutine return

−

−−−

−−

RIM

Enable Interrupts

I = 0

−−

−

−−

−

RLC

Rotate Left true C

<= Dst <= C

reg, M

−−

−

NZC

RRC

Rotate Right true C

=> Dst => C

reg, M

−−

−

NZC

RSP

Reset Stack Pointer

S = Max allowed

−

−−−

−−

SBC

Subtract with Carry

A = A - M - C

−−

NZC

SCF

Set carry flag

C = 1

−

−−−

−

SIM

Disable Interrupts

I = 1

−−

−

−−

−

SLA

Shift Left Arithmetic

<= Dst <= 0reg, M

−−

−

NZC

SLL

Shift Left Logic

<= Dst <= 0reg, M

−−

−

NZC

SRL

Shift Right Logic

=> Dst => C

reg, M

−−

−

SRA

Shift Right Arithmetic

Dst7

=> Dst => Creg, M

−−

−

NZC

SUB

Subtraction

A = A - M

−−

NZC

SWAP

SWAP nibbles

Dst[7..4] <=> Dst[3..0]

reg, M

−−

−

TNZ

Test for Neg and Zero

tnz lbl1

−−

−

TRAP

S/W TRAP

S/W interrupt

−−

−

−−

−

WFI

WAIT for Interrupt

−−

−

−−

−

XOR

Exclusive OR

A = A XOR M

−−

−

Table 56.

Instruction set overview (continued)

Mnemo

Description

Function/example

Dst

Src

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