mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 12:39:23 +00:00
3d0d14f983
lindent these files:
errors lines of code errors/KLOC
arch/x86/math-emu/ 2236 9424 237.2
arch/x86/math-emu/ 128 8706 14.7
no other changes. No code changed:
text data bss dec hex filename
5589802 612739 3833856 10036397 9924ad vmlinux.before
5589802 612739 3833856 10036397 9924ad vmlinux.after
the intent of this patch is to ease the automated tracking of kernel
code quality - it's just much easier for us to maintain it if every file
in arch/x86 is supposed to be clean.
NOTE: it is a known problem of lindent that it causes some style damage
of its own, but it's a safe tool (well, except for the gcc array range
initializers extension), so we did the bulk of the changes via lindent,
and did the manual fixups in a followup patch.
the resulting math-emu code has been tested by Thomas Gleixner on a real
386 DX CPU as well, and it works fine.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/*---------------------------------------------------------------------------+
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| status_w.h |
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| Copyright (C) 1992,1993 |
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| W. Metzenthen, 22 Parker St, Ormond, Vic 3163, |
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| Australia. E-mail billm@vaxc.cc.monash.edu.au |
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+---------------------------------------------------------------------------*/
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#ifndef _STATUS_H_
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#define _STATUS_H_
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#include "fpu_emu.h" /* for definition of PECULIAR_486 */
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#ifdef __ASSEMBLY__
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#define Const__(x) $##x
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#else
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#define Const__(x) x
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#endif
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#define SW_Backward Const__(0x8000) /* backward compatibility */
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#define SW_C3 Const__(0x4000) /* condition bit 3 */
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#define SW_Top Const__(0x3800) /* top of stack */
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#define SW_Top_Shift Const__(11) /* shift for top of stack bits */
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#define SW_C2 Const__(0x0400) /* condition bit 2 */
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#define SW_C1 Const__(0x0200) /* condition bit 1 */
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#define SW_C0 Const__(0x0100) /* condition bit 0 */
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#define SW_Summary Const__(0x0080) /* exception summary */
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#define SW_Stack_Fault Const__(0x0040) /* stack fault */
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#define SW_Precision Const__(0x0020) /* loss of precision */
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#define SW_Underflow Const__(0x0010) /* underflow */
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#define SW_Overflow Const__(0x0008) /* overflow */
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#define SW_Zero_Div Const__(0x0004) /* divide by zero */
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#define SW_Denorm_Op Const__(0x0002) /* denormalized operand */
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#define SW_Invalid Const__(0x0001) /* invalid operation */
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#define SW_Exc_Mask Const__(0x27f) /* Status word exception bit mask */
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#ifndef __ASSEMBLY__
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#define COMP_A_gt_B 1
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#define COMP_A_eq_B 2
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#define COMP_A_lt_B 3
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#define COMP_No_Comp 4
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#define COMP_Denormal 0x20
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#define COMP_NaN 0x40
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#define COMP_SNaN 0x80
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#define status_word() \
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((partial_status & ~SW_Top & 0xffff) | ((top << SW_Top_Shift) & SW_Top))
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static inline void setcc(int cc)
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{
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partial_status &= ~(SW_C0 | SW_C1 | SW_C2 | SW_C3);
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partial_status |= (cc) & (SW_C0 | SW_C1 | SW_C2 | SW_C3);
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}
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#ifdef PECULIAR_486
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/* Default, this conveys no information, but an 80486 does it. */
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/* Clear the SW_C1 bit, "other bits undefined". */
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# define clear_C1() { partial_status &= ~SW_C1; }
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# else
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# define clear_C1()
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#endif /* PECULIAR_486 */
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#endif /* __ASSEMBLY__ */
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#endif /* _STATUS_H_ */
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