printing MMX variables

printing MMX variables

[Shadi el-Hajj]

hello,

a thousand apologies if this is way too obvious and/or has been asked 
many times ( i just can't find in the archives ). i am trying to debug 
some mmx code in which i have declared:
__m64 foovector;
i use foovector to store 8 8bit integers(chars). now when i ask for:
print foovector
i get:  { 1073836052, 1}. obviously gdb is interpreting my chars as 
32bit ints. how can i tell him i just want chars ? i tried a thousand 
casts like (v8qi etc...) but gdb answers "No symbol in current 
context".
i am using version 6.1 on linux-x86(debian testing)

thanks in advance,
shadi

Re: printing MMX variables

[Michael Elizabeth Chastain]

Try the '/c' modifier:

  print /c foovector
  x /20c &foovector

Michael C

Re: printing MMX variables

[Shadi el-Hajj]

thanks, it works !
actually print /c doesn't work because it only prints 2 values out of 8, 
but x /8c (or better x /8db) does the job.

cheers,
shadi


Michael Elizabeth Chastain wrote:

>Try the '/c' modifier:
>
>  print /c foovector
>  x /20c &foovector
>
>Michael C
>
>  
>