* Purpose : clear some user memory
* Params : addr - user memory address to clear
* : sz - number of bytes to clear
* Returns : number of bytes NOT cleared
*/
* Purpose : clear some user memory
* Params : addr - user memory address to clear
* : sz - number of bytes to clear
* Returns : number of bytes NOT cleared
*/
tst r1, #1 @ x1 x0 x1 x0 x1 x0 x1
USER( strnebt r2, [r0], #1)
mov r0, #0
tst r1, #1 @ x1 x0 x1 x0 x1 x0 x1
USER( strnebt r2, [r0], #1)
mov r0, #0