kaguya
25 lines
509 B
C++
25 lines
509 B
C++
#pragma once
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#include <stdint.h>
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#include <mlibc/internal-sysdeps.hpp>
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#include <mlibc/tcb.hpp>
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#include <bits/ensure.h>
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namespace mlibc {
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extern "C" void *__m68k_read_tp();
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inline Tcb *get_current_tcb() {
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// On m68k, the end of the TCB is 0x7000 below the thread pointer.
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void *ptr = __m68k_read_tp();
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return reinterpret_cast<Tcb *>((uintptr_t)ptr - 0x7000 - sizeof(Tcb));
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}
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inline uintptr_t get_sp() {
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uintptr_t sp;
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asm volatile ("move.l %%sp, %0" : "=r"(sp));
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return sp;
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}
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} // namespace mlibc
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