Assembly Programming - beginner

Question

I'm new to assembly language. Can someone just explain to me what the following code segment does? Thanks a lot for any help.

        MOVE.B  #20,D0
        MOVEA.L #$1000,A0
        CLR.B   D1
Again   CMP.B   (A0)+,D2
        BNE     NEXT
        ADD.B   #1,D1
NEXT    SUB.B   #1,D0
        BNE     Again

possible duplicate of [Translating Assembly Language to English (EASy68K)](http://stackoverflow.com/questions/19529412/translating-assembly-language-to-english-easy68k) — , Oct 22 '13 at 22:22

score 0 · Accepted Answer · answered Oct 22 '13 at 21:11

0

I am not sure what assembly is this (please specify the processor) probably some Motorolla 68000 or similar. But it searches the memory from address $1000 to $101f for byte $d2 and counts how many of them has been found in the register D1. "$" means hexadecimal number. "#" means immediate constant.

answered Oct 22 '13 at 21:11

johnfound

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Add it as a tag in the question. – johnfound Oct 22 '13 at 21:25

Assembly Programming - beginner

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