ST7LITE2 datasheet(90/131 Pages) STMICROELECTRONICS

90 / 131 page

ST7LITE2

90/131

INSTRUCTION GROUPS (Cont’d)

Mnemo

Description

Function/Example

Dst

Src

JRULE

Jump if (C + Z = 1)

Unsigned <=

Load

dst <= src

reg, M

M, reg

MUL

Multiply

X,A = X * A

A, X, Y

X, Y, A

NEG

Negate (2’s compl)

neg $10

reg, M

NOP

No Operation

OR operation

A = A + M

POP

Pop from the Stack

pop reg

reg

pop CC

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

C <= Dst <= C

reg, M

RRC

Rotate right true C

C => Dst => C

reg, M

RSP

Reset Stack Pointer

S = Max allowed

SBC

Subtract with Carry

A = A - M - C

SCF

Set carry flag

C = 1

SIM

Disable Interrupts

I = 1

SLA

Shift left Arithmetic

C <= Dst <= 0

reg, M

SLL

Shift left Logic

C <= Dst <= 0

reg, M

SRL

Shift right Logic

0 => Dst => C

reg, M

SRA

Shift right Arithmetic

Dst7 => Dst => C

reg, M

SUB

Subtraction

A = A - M

SWAP

SWAP nibbles

Dst[7..4] <=> Dst[3..0] reg, M

TNZ

Test for Neg & Zero

tnz lbl1

TRAP

S/W trap

S/W interrupt

WFI

Wait for Interrupt

XOR

Exclusive OR

A = A XOR M

ST7LITE2 数据表(PDF) 90 Page - STMicroelectronics

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ST7LITE2 数据表(PDF) 90 Page - STMicroelectronics

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