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68 lines
2.4 KiB
Plaintext
68 lines
2.4 KiB
Plaintext
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--- src/include/i386/__math.h-- Thu Mar 5 03:19:12 1998
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+++ src/include/i386/__math.h Fri Jul 3 13:59:51 1998
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@@ -179,7 +179,7 @@
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__asm __volatile__
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("fldl %%st(0)\n\t"
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"frndint # int(x)\n\t"
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- "fxch\n\t"
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+ "fxch %%st(1)\n\t"
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"fsub %%st(1) # fract(x)\n\t"
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"f2xm1 # 2^(fract(x)) - 1\n\t"
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: "=t" (__value), "=u" (__exponent) : "0" (__x));
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@@ -254,7 +254,7 @@
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"fmul %%st(1) # x * log2(e)\n\t" \
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"fstl %%st(1)\n\t" \
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"frndint # int(x * log2(e))\n\t" \
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- "fxch\n\t" \
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+ "fxch %%st(1)\n\t" \
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"fsub %%st(1) # fract(x * log2(e))\n\t" \
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"f2xm1 # 2^(fract(x * log2(e))) - 1\n\t" \
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"fscale # 2^(x * log2(e)) - 2^(int(x * log2(e)))\n\t" \
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@@ -275,7 +275,7 @@
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"fmul %%st(1) # x * log2(e)\n\t" \
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"fstl %%st(1)\n\t" \
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"frndint # int(x * log2(e))\n\t" \
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- "fxch\n\t" \
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+ "fxch %%st(1)\n\t" \
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"fsub %%st(1) # fract(x * log2(e))\n\t" \
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"f2xm1 # 2^(fract(x * log2(e))) - 1\n\t" \
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: "=t" (__value), "=u" (__exponent) : "0" (__x)); \
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@@ -350,7 +350,7 @@
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("fmul %%st(1) # y * log2(x)\n\t"
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"fst %%st(1)\n\t"
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"frndint # int(y * log2(x))\n\t"
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- "fxch\n\t"
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+ "fxch %%st(1)\n\t"
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"fsub %%st(1) # fract(y * log2(x))\n\t"
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"f2xm1 # 2^(fract(y * log2(x))) - 1\n\t"
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: "=t" (__value), "=u" (__exponent) : "0" (__y), "1" (__value));
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@@ -380,8 +380,8 @@
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__inline_mathop (cos, "fcos")
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__inline_mathop (atan, "fld1; fpatan")
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-__inline_mathop (log, "fldln2; fxch; fyl2x")
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-__inline_mathop (log10, "fldlg2; fxch; fyl2x")
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+__inline_mathop (log, "fldln2; fxch %%st(1); fyl2x")
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+__inline_mathop (log10, "fldlg2; fxch %%st(1); fyl2x")
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__inline_mathcode (asin, __x, return __atan2l (__x, __sqrtl (1.0 - __x * __x)))
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__inline_mathcode (acos, __x, return __atan2l (__sqrtl (1.0 - __x * __x), __x))
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@@ -441,7 +441,7 @@
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/* Optimized versions for some non-standardized functions. */
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#if defined __USE_ISOC9X || defined __USE_MISC
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-__inline_mathop(log2, "fld1; fxch; fyl2x")
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+__inline_mathop(log2, "fld1; fxch %%st(1); fyl2x")
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__inline_mathcode (expm1, __x, __expm1_code)
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@@ -456,7 +456,7 @@
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else
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__asm __volatile__
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("fldln2\n\t"
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- "fxch\n\t"
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+ "fxch %%st(1)\n\t"
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"fyl2xp1"
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: "=t" (__value) : "0" (__x));
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return __value)
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