write it in 8085
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Mov a.#000ff, mov b,#0008f add a,b
8059
internal and external memory
Clr psw.3 clr psw.4 mov r1, 05h mov r0, #50h dcr r1 mov 10h, @r0 up: inc r0 mov a, @r0 cjne a, 10h dn ajmp dn: jnc next mov 10h,a next: djnz r1 up *:ajmp *
You should use a mechanism called persistance of vision for interfacing multiple seven segment displays. here is tutorial for mulplexing displays using 8051 microcontroller. http://www.shree-electronics.com/interfacing_multiple_7_segment_displays.htm