15 lines
408 B
ArmAsm
15 lines
408 B
ArmAsm
.text
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.align 2
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.global fetch_and_add_arm
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.type fetch_and_add_arm, %function
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fetch_and_add_arm:
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mcr p15, #0, r0, c7, c10, #5
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.L0:
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ldrex r3, [r0]
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add r3, r3, r1
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strex r2, r3, [r0]
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cmp r2, #0
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bne .L0
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mcr p15, #0, r0, c7, c10, #5
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bx lr
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.size fetch_and_add_arm, .-fetch_and_add_arm
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