?? mtfsf.c
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/* * BK Id: SCCS/s.mtfsf.c 1.6 05/17/01 18:14:23 cort */#include <linux/types.h>#include <linux/errno.h>#include <asm/uaccess.h>#include "soft-fp.h"intmtfsf(unsigned int FM, u32 *frB){ u32 mask; if (FM == 0) return 0; if (FM == 0xff) mask = 0x9fffffff; else { mask = 0; if (FM & (1 << 0)) mask |= 0x90000000; if (FM & (1 << 1)) mask |= 0x0f000000; if (FM & (1 << 2)) mask |= 0x00f00000; if (FM & (1 << 3)) mask |= 0x000f0000; if (FM & (1 << 4)) mask |= 0x0000f000; if (FM & (1 << 5)) mask |= 0x00000f00; if (FM & (1 << 6)) mask |= 0x000000f0; if (FM & (1 << 7)) mask |= 0x0000000f; } __FPU_FPSCR &= ~(mask); __FPU_FPSCR |= (frB[1] & mask);#ifdef DEBUG printk("%s: %02x %p: %08lx\n", __FUNCTION__, FM, frB, __FPU_FPSCR);#endif return 0;}?? 快捷鍵說明
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