Assembler: jmpf, testb and else instructions

StackOverflow https://stackoverflow.com/questions/2939721

  •  05-10-2019
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Question

Help me please, i don't understand this code:

...
BUFFER = 0x0600
...
rep movs jmpf BUFFER+migrate, 0 ;???
migrate:
findactive:
testb dl,dl ; ???
jns nextdisk
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Solution

I'm an old x86 coder. I have to admit I don't understand your code either. The "movs" instruction line looks illegal. Are you sure you've transcribed the code correctly?

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