22 lines
523 B
ArmAsm
22 lines
523 B
ArmAsm
.text
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.align 2
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.global fetch_and_add_arm64
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.type fetch_and_add_arm64, %function
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fetch_and_add_arm64:
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#ifdef __TINYC__
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.int 0x885f7c02
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.int 0x0b010042
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.int 0x8803fc02
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.int 0x35ffffa3
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.int 0xd5033bbf
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.int 0xd65f03c0
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#else
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ldxr w2, [x0]
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add w2, w2, w1
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stlxr w3, w2, [x0]
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cbnz w3, fetch_and_add_arm64
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dmb ish
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ret
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#endif
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.size fetch_and_add_arm64, .-fetch_and_add_arm64
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