cortex-m 0.5.11

Low level access to Cortex-M processors
Documentation 
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  .section .text.__basepri_max_cm7_r0p1
  .global __basepri_max_cm7_r0p1
  .syntax unified
  .thumb_func
__basepri_max_cm7_r0p1:
  mrs r1, PRIMASK
  cpsid i
  tst.w r1, #1
  msr BASEPRI_MAX, r0
  it ne
  bxne lr
  cpsie i
  bx lr

  .section .text.__basepri_w_cm7_r0p1
  .global __basepri_w_cm7_r0p1
  .syntax unified
  .thumb_func
__basepri_w_cm7_r0p1:
  mrs r1, PRIMASK
  cpsid i
  tst.w r1, #1
  msr BASEPRI, r0
  it ne
  bxne lr
  cpsie i
  bx lr