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38
venv/Lib/site-packages/greenlet/platform/switch_m68k_gcc.h
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38
venv/Lib/site-packages/greenlet/platform/switch_m68k_gcc.h
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/*
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* this is the internal transfer function.
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*
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* HISTORY
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* 2014-01-06 Andreas Schwab <schwab@linux-m68k.org>
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* File created.
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*/
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#ifdef SLP_EVAL
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#define STACK_MAGIC 0
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#define REGS_TO_SAVE "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
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"%a2", "%a3", "%a4"
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static int
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slp_switch(void)
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{
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int err;
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int *stackref, stsizediff;
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void *fp, *a5;
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__asm__ volatile ("" : : : REGS_TO_SAVE);
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__asm__ volatile ("move.l %%fp, %0" : "=m"(fp));
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__asm__ volatile ("move.l %%a5, %0" : "=m"(a5));
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__asm__ ("move.l %%sp, %0" : "=r"(stackref));
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{
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SLP_SAVE_STATE(stackref, stsizediff);
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__asm__ volatile ("add.l %0, %%sp; add.l %0, %%fp" : : "r"(stsizediff));
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SLP_RESTORE_STATE();
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__asm__ volatile ("clr.l %0" : "=g" (err));
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}
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__asm__ volatile ("move.l %0, %%a5" : : "m"(a5));
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__asm__ volatile ("move.l %0, %%fp" : : "m"(fp));
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__asm__ volatile ("" : : : REGS_TO_SAVE);
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return err;
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}
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#endif
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