Sonic Alert msm80154s, msm83c154s user manual Ajmp code address Absolute jump within 2K byte, 255

Models: msm83c154s msm85c154hvs msm80154s

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DESCRIPTION OF INSTRUCTIONS

10. AJMP code address (Absolute jump within 2K byte page)

 

 

7

 

 

 

 

 

 

 

 

0

 

Instruction code

:

A10

A9

A8

0

 

 

0

0

0

1

Byte 1

 

 

7

 

 

 

 

 

 

 

 

0

 

Call address

 

A7

A6

A5

A4

 

 

A3

A2

A1

A0

Byte 2

Operations

: (PC)(PC)+2

 

 

 

 

 

 

 

 

 

 

(PC0~10)A0~10

 

 

 

 

 

 

 

 

Number of bytes

: 2

 

 

 

 

 

 

 

 

 

 

Number of cycles

: 2

 

 

 

 

 

 

 

 

 

 

Flags

:

C

AC

F0

RS1

 

 

RS0

OV

F1

P

 

(PSW)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

 

 

 

 

 

 

 

 

 

: After an increment ,the program counter PC0~10 is replaced by

 

 

11-bit page address data A0~10. The destination address for

 

 

this instruction must always be within the 2K byte page, but if

the instruction is placed at address X7FEH or X7FFH, execution proceeds from the jump address on the next page.

255

Page 262
Image 262
Sonic Alert msm80154s, msm83c154s, msm85c154hvs user manual Ajmp code address Absolute jump within 2K byte, 255