19 lines
548 B
ArmAsm
19 lines
548 B
ArmAsm
/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */
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.global _longjmp
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.global longjmp
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.type _longjmp,@function
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.type longjmp,@function
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_longjmp:
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longjmp:
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xor %eax,%eax
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cmp $1,%esi /* CF = val ? 0 : 1 */
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adc %esi,%eax /* eax = val + !val */
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mov (%rdi),%rbx /* rdi is the jmp_buf, restore regs from it */
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mov 8(%rdi),%rbp
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mov 16(%rdi),%r12
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mov 24(%rdi),%r13
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mov 32(%rdi),%r14
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mov 40(%rdi),%r15
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mov 48(%rdi),%rsp
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jmp *56(%rdi) /* goto saved address without altering rsp */
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