MSM80C154S/83C154S/85C154HVS

22.CJNE Rr, #data, code address

(Compare immediate data to register, jump if not equal)

 

 

7

 

 

 

 

 

 

 

 

 

 

0

 

Instruction code

:

1

 

0

1

1

 

 

1

r2

r1

r0

Byte 1

 

 

7

 

 

 

 

 

 

 

 

 

 

0

 

#data

 

I7

I6

I5

 

I4

 

 

I3

I2

I1

I0

Byte 2

 

 

7

 

 

 

 

 

 

 

 

 

 

0

 

Relative offset

 

R7

R6

R5

 

R4

 

 

R3

R2

R1

R0

Byte 3

Operations

: (PC)(PC)+3

 

 

 

 

 

 

 

 

 

 

 

IF ((Rr))#data

r=0 thru 7

 

 

 

 

 

 

THEN

 

 

 

 

 

 

 

 

 

 

 

 

 

(PC)(PC)+relative offset

 

 

 

 

 

 

IF ((Rr))<#data

r=0 thru 7

 

 

 

 

 

 

THEN

 

 

 

 

 

 

 

 

 

 

 

 

 

(C)1

 

 

 

 

 

 

 

 

 

 

 

 

 

ELSE

 

 

 

 

 

 

 

 

 

 

 

 

 

(C)0

 

 

 

 

 

 

 

 

 

 

 

Number of bytes

: 3

 

 

 

 

 

 

 

 

 

 

 

 

Number of cycles

: 2

 

 

 

 

 

 

 

 

 

 

 

 

Flags

:

C

AC

F0

 

RS1

 

 

RS0

OV

F1

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(PSW)

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

 

 

 

 

 

 

 

 

 

: The register r contents are compared with an immediate data

 

 

value, and control is shifted to a relative jump address if the

 

 

compared data is not equal. If the compared data is equal,

control is shifted to the next address following this instruction. The carry flag is set to 1 if the immediate data value is greater than the register r contents, but is set to 0 if otherwise.

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Sonic Alert msm80154s, msm83c154s, msm85c154hvs user manual 270, Compared data is not equal. If the compared data is equal