18 lines
458 B
ArmAsm
18 lines
458 B
ArmAsm
/*
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* Thunk code to assist with bitwise operations (set/clear) via FEL
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*/
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fel_clrsetbits_le32:
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ldr r0, 1f /* address */
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ldr r1, [r0] /* load value */
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ldr r2, 2f /* clrbits mask */
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bic r1, r2 /* clear bits, post-increment r1 */
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ldr r2, 3f /* setbits mask */
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orr r1, r2 /* set bits (logical "or") */
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str r1, [r0] /* store result */
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bx lr
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1: .word 0 /* addr */
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2: .word 0 /* clrbits (= bits to clear) */
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3: .word 0 /* setbits (= bits to set) */
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