PM0044 datasheet(65/162 Pages) STMICROELECTRONICS

65 / 162 page

PM0044

STM8 instruction set

Doc ID 13590 Rev 3

65/162

BCCM

Copy carry

in memory bit

BCCM $1234,#1

M(longmem).bit

← CC.C

90 1n ww bb

n= 2*bit

BCP

Logical bit

compare

BCP A,($12,SP)

test {A AND

M(SP+shortoff) }

N and Z are updated

accordingly

15 bb

BCPL

Complement bit

in memory

BCPL $1234,#1

M(longmem).bit

←

M(longmem).bit

90 1n ww bb

n= 2*bit

BREAK

Software

breakpoint

---

SW-BREAK

Flush

BRES

Bit reset

BRES $1234,#1

M(longmem).bit

← 0

72 1n ww bb

n= 1 + 2*bit

BSET

Bit set

BSET $1234,#1

M(longmem).bit

← 1

72 1n ww bb

n= 2*bit

BTJF

Bit test and

relative

jump if

condition is

false

---

BTJF $1234,#1,label

if M(longmem).bit=0

then PC

← PC + 4 + rr

else PC

← PC + 4

72 0n ww bb

n= 1 + 2*bit

2/3

Flush

(2)

BTJT

Bit test and

relative

jump if

condition is true

---

BTJT $1234,#1,label

if M(longmem).bit=1

then PC

← PC + 4 + rr

else PC

← PC + 4

72 0n ww bb

n= 2*bit

2/3

Flush

(2)

CALL

Call to

Subroutine with

address in

same section

CALL [$1234.w]

← PC + 4

M(SP--)

← PCL

M(SP--)

← PCH

PCH

← M(longmem)

PCL

← M(longmem + 1)

72 CD ww bb

Flush

CALLF

Call to

subroutine

with extended

address

CALLF $123456

← PC+4

M(SP--)

← PCL

M(SP--)

← PCH

M(SP--)

← PCE

← extmem

8D ee ww bb

Flush

CALLR

Call Subroutine

relative

CALLR label

← PC + 4

M(SP--)

← PCL

M(SP--)

← PCH

← PC + rr

AD bb

Flush

CCF

Complement

carry flag

---

CCF

CC.C

← CC.C

CLR

Clears the

destination byte

CLR ([$1234.w],X)

M( M(longmem).w + X )

←

0x00

72 6F ww bb

CLRW

Clears the

destination

index register

CLRW X

← 0x0000

Compare

CP A,($12,SP)

test { A - M(SP+shortoff) }

11 bb

Table 42.

Instruction set summary (continued)

Description

Effect on CC register

Syntax example

Operation

Example

op-

code(s)

VI1

PM0044 数据表(PDF) 65 Page - STMicroelectronics

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PM0044 数据表(PDF) 65 Page - STMicroelectronics

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