0858b7105c
This function provides bitwise clear/set operations on 32-bit words via FEL. It may help with implementing future functionality, where ARM register manipulations often involve such bit level access. Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>
10 lines
559 B
C
10 lines
559 B
C
/* <fel_clrsetbits_le32>: */
|
|
htole32(0xe59f0018), /* 0: ldr r0, [pc, #24] */
|
|
htole32(0xe5901000), /* 4: ldr r1, [r0] */
|
|
htole32(0xe59f2014), /* 8: ldr r2, [pc, #20] */
|
|
htole32(0xe1c11002), /* c: bic r1, r1, r2 */
|
|
htole32(0xe59f2010), /* 10: ldr r2, [pc, #16] */
|
|
htole32(0xe1811002), /* 14: orr r1, r1, r2 */
|
|
htole32(0xe5801000), /* 18: str r1, [r0] */
|
|
htole32(0xe12fff1e), /* 1c: bx lr */
|