5cd272085b
Towards the goal of having arch/powerpc not build anything over in arch/ppc move math-emu over. Also, killed some references to arch/ppc/ in the arch/powerpc Makefile which should belong in drivers/ when the particular sub-arch's move over to arch/powerpc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
45 lines
752 B
C
45 lines
752 B
C
#include <linux/types.h>
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#include <linux/errno.h>
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#include <asm/uaccess.h>
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#include "soft-fp.h"
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int
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mtfsf(unsigned int FM, u32 *frB)
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{
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u32 mask;
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if (FM == 0)
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return 0;
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if (FM == 0xff)
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mask = 0x9fffffff;
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else {
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mask = 0;
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if (FM & (1 << 0))
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mask |= 0x90000000;
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if (FM & (1 << 1))
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mask |= 0x0f000000;
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if (FM & (1 << 2))
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mask |= 0x00f00000;
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if (FM & (1 << 3))
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mask |= 0x000f0000;
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if (FM & (1 << 4))
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mask |= 0x0000f000;
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if (FM & (1 << 5))
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mask |= 0x00000f00;
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if (FM & (1 << 6))
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mask |= 0x000000f0;
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if (FM & (1 << 7))
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mask |= 0x0000000f;
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}
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__FPU_FPSCR &= ~(mask);
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__FPU_FPSCR |= (frB[1] & mask);
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#ifdef DEBUG
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printk("%s: %02x %p: %08lx\n", __FUNCTION__, FM, frB, __FPU_FPSCR);
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#endif
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return 0;
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}
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