I've applied my patch from kern/9569:

| >Description:
| 	  ddb doesn't preserve "count" when you use the "hit enter to
| repeat the last command". This is inconvenient if you're paging
| through dissassembly, i.e.
| 
| 		  x/i fxp_init,8
| 		  <nl>
| 		  <nl>
| 		  <nl>
| 
| prints the first 8 instructions, then each time you hit <nl>, you only
| see one instruction rather than the next 8. Makes for slow going.
| Additionally, you'd like to be able to re-execute the previous command
| with a different count only by specifying the count, rather than
| the command and argument.
| 
| This patch adds support for both.
| 
| 

Enjoy!

--jhawk