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>
41 lines
693 B
C
41 lines
693 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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#include "double.h"
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#include "single.h"
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int
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stfs(void *frS, void *ea)
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{
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FP_DECL_D(A);
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FP_DECL_S(R);
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float f;
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int err;
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#ifdef DEBUG
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printk("%s: S %p, ea %p\n", __FUNCTION__, frS, ea);
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#endif
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__FP_UNPACK_D(A, frS);
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#ifdef DEBUG
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printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
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#endif
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FP_CONV(S, D, 1, 2, R, A);
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#ifdef DEBUG
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printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c);
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#endif
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err = _FP_PACK_CANONICAL(S, 1, R);
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if (!err || !__FPU_TRAP_P(err)) {
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__FP_PACK_RAW_1(S, &f, R);
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if (copy_to_user(ea, &f, sizeof(float)))
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return -EFAULT;
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}
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return err;
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}
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