What does @7 mean in this assembly code?

Robert W

Hi,

I read spru430e.pdf on C28 assembly code. It has the following example code on page 119/693:

I1: MOVB AR0,@7 ; Load AR0 with the value addressed by
; the operand @7 and clear the upper
; half of XAR0.
I2: MOV AH,*XAR0 ; Load AH with the value pointed to by
; XAR0.

Could you explain it to me?

Thanks,

over 11 years ago

0 Gautam Iyer over 11 years ago

Guru 192875 points

Hi Robert,

Here @7 means "content at location 7";

So, in the above case, you're moving the value present at the location 7 to AR0

Regards,

Gautam

0 Robert W over 11 years ago in reply to Gautam Iyer

Mastermind 7100 points

Thank. But it cannot be compiled. Is that code a pseudo-code?

0 Robert W over 11 years ago in reply to Robert W

Mastermind 7100 points

Sorry, it could now. There was another error previously. Thanks,

0 Gautam Iyer over 11 years ago in reply to Robert W

Guru 192875 points

That's great.

Good luck & Regards,

Gautam

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What does @7 mean in this assembly code?