VTech Alphabert s Magic Readport User Manual download pdf (Page 19)

BM Dept., Govt. Engg. College, Gandhinagar Page 19

JC next ;If A<next data then check next data

MOV 60h,R0 ;Save smallest location at RAM address 60h

MOV b,@R0 ;If A>next data then transfer next data to accumulator

next: CJNE R0,#4Fh,start ;Check for last location

MOV R0,60h ;Get smallest location again

MOV a,@R0 ;Exchange first data with location of smallest no.

XCH A,@R1

MOV @R0,A

INC R1

MOV A,R1 ;Start search for small number from next location

MOV R0,A

CJNE R1,#4Fh,loop ;Check for last location

END

:: WORKSHEET ::

Exercise:

A. Write an assembly language program to transfer data from external memory locations

5000h-500Fh to the internal memory locations 30-3Fh.

Memory

Location

HEX

code

Label Opcode Operands Comments

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 79 80

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VTech Alphabert s Magic Readport User Manual Page 19