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- #include <linux/types.h>
- #include <linux/errno.h>
- #include <asm/uaccess.h>
- #include <asm/sfp-machine.h>
- #include <math-emu/soft-fp.h>
- #include <math-emu/double.h>
- #include <math-emu/single.h>
- int
- stfs(void *frS, void *ea)
- {
- FP_DECL_D(A);
- FP_DECL_S(R);
- FP_DECL_EX;
- float f;
- #ifdef DEBUG
- printk("%s: S %p, ea %p\n", __func__, frS, ea);
- #endif
- FP_UNPACK_DP(A, frS);
- #ifdef DEBUG
- printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
- #endif
- FP_CONV(S, D, 1, 2, R, A);
- #ifdef DEBUG
- printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c);
- #endif
- _FP_PACK_CANONICAL(S, 1, R);
- if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) {
- _FP_PACK_RAW_1_P(S, &f, R);
- if (copy_to_user(ea, &f, sizeof(float)))
- return -EFAULT;
- }
- return FP_CUR_EXCEPTIONS;
- }
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