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@ -1,5 +1,5 @@
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/* Low-level functions for atomic operations. Mips version.
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Copyright (C) 2001 Free Software Foundation, Inc.
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Copyright (C) 2001, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -32,16 +32,12 @@ exchange_and_add (volatile uint32_t *mem, int val)
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int result, tmp;
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__asm__ __volatile__
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("/* Inline exchange & add */\n\t"
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"ll %0,%3\n"
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("/* Inline exchange & add */\n"
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"1:\n\t"
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"ll %0,%3\n\t"
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"addu %1,%4,%0\n\t"
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"sc %1,%2\n\t"
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".set push\n\t"
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".set noreorder\n\t"
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"beqzl %1,1b\n\t"
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" ll %0,%3\n\t"
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".set pop\n\t"
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"beqz %1,1b\n\t"
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"/* End exchange & add */"
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: "=&r"(result), "=&r"(tmp), "=m"(*mem)
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: "m" (*mem), "r"(val)
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@ -57,16 +53,12 @@ atomic_add (volatile uint32_t *mem, int val)
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int result;
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__asm__ __volatile__
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("/* Inline atomic add */\n\t"
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"ll %0,%2\n"
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("/* Inline atomic add */\n"
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"1:\n\t"
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"ll %0,%2\n\t"
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"addu %0,%3,%0\n\t"
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"sc %0,%1\n\t"
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".set push\n\t"
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".set noreorder\n\t"
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"beqzl %0,1b\n\t"
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" ll %0,%2\n\t"
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".set pop\n\t"
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"beqz %0,1b\n\t"
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"/* End atomic add */"
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: "=&r"(result), "=m"(*mem)
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: "m" (*mem), "r"(val)
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@ -80,18 +72,17 @@ compare_and_swap (volatile long int *p, long int oldval, long int newval)
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long int ret, temp;
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__asm__ __volatile__
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("/* Inline compare & swap */\n\t"
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"ll %1,%5\n"
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("/* Inline compare & swap */\n"
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"1:\n\t"
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"ll %1,%5\n\t"
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".set push\n\t"
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".set noreorder\n\t"
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"bne %1,%3,2f\n\t"
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" move %0,$0\n\t"
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".set pop\n\t"
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"move %0,%4\n\t"
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"sc %0,%2\n\t"
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"beqzl %0,1b\n\t"
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" ll %1,%5\n\t"
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".set pop\n"
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"beqz %0,1b\n"
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"2:\n\t"
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"/* End compare & swap */"
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: "=&r" (ret), "=&r" (temp), "=m" (*p)
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@ -1,4 +1,4 @@
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/* Copyright (C) 2000 Free Software Foundation, Inc.
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/* Copyright (C) 2000, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Maciej W. Rozycki <macro@ds2.pg.gda.pl>, 2000.
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@ -42,17 +42,16 @@ _test_and_set (int *p, int v) __THROW
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int r, t;
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__asm__ __volatile__
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("/* Inline test and set */\n\t"
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"ll %0,%3\n"
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("/* Inline test and set */\n"
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"1:\n\t"
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"ll %0,%3\n\t"
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".set push\n\t"
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".set noreorder\n\t"
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"beq %0,%4,2f\n\t"
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" move %1,%4\n\t"
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".set pop\n\t"
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"sc %1,%2\n\t"
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"beqzl %1,1b\n\t"
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" ll %0,%3\n\t"
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".set pop\n"
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"beqz %1,1b\n"
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"2:\n\t"
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"/* End test and set */"
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: "=&r" (r), "=&r" (t), "=m" (*p)
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