mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-25 19:21:35 +01:00
28 lines
513 B
ArmAsm
28 lines
513 B
ArmAsm
/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-bitwise-instructions */
|
|
|
|
#include "common.h"
|
|
|
|
LKMC_ENTRY
|
|
|
|
/* 0x00 && 0xFF == 0x00 */
|
|
mov r0, 0x00
|
|
and r0, 0xFF
|
|
LKMC_ASSERT_EQ(r0, 0x00)
|
|
|
|
/* 0x0F && 0xF0 == 0x00 */
|
|
mov r0, 0x0F
|
|
and r0, 0xF0
|
|
LKMC_ASSERT_EQ(r0, 0x00)
|
|
|
|
/* 0x0F && 0xFF == 0x0F */
|
|
mov r0, 0x0F
|
|
and r0, 0xFF
|
|
LKMC_ASSERT_EQ(r0, 0x0F)
|
|
|
|
/* 0xF0 && 0xFF == 0xF0 */
|
|
mov r0, 0xF0
|
|
and r0, 0xFF
|
|
LKMC_ASSERT_EQ(r0, 0xF0)
|
|
|
|
LKMC_EXIT
|