43 lines
786 B
C
43 lines
786 B
C
#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/uaccess.h>
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#include <asm/sfp-machine.h>
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#include <math-emu/soft-fp.h>
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#include <math-emu/double.h>
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#include <math-emu/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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FP_DECL_EX;
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float f;
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#ifdef DEBUG
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printk("%s: S %p, ea %p\n", __func__, frS, ea);
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#endif
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FP_UNPACK_DP(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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_FP_PACK_CANONICAL(S, 1, R);
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if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) {
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_FP_PACK_RAW_1_P(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 FP_CUR_EXCEPTIONS;
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}
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