1 #include <linux/types.h> 2 #include <linux/errno.h> 3 #include <linux/uaccess.h> 4 5 #include <asm/sfp-machine.h> 6 #include <math-emu/soft-fp.h> 7 8 int 9 mcrfs(u32 *ccr, u32 crfD, u32 crfS) 10 { 11 u32 value, clear; 12 13 #ifdef DEBUG 14 printk("%s: %p (%08x) %d %d\n", __func__, ccr, *ccr, crfD, crfS); 15 #endif 16 17 clear = 15 << ((7 - crfS) << 2); 18 if (!crfS) 19 clear = 0x90000000; 20 21 value = (__FPU_FPSCR >> ((7 - crfS) << 2)) & 15; 22 __FPU_FPSCR &= ~(clear); 23 24 *ccr &= ~(15 << ((7 - crfD) << 2)); 25 *ccr |= (value << ((7 - crfD) << 2)); 26 27 #ifdef DEBUG 28 printk("CR: %08x\n", __func__, *ccr); 29 #endif 30 31 return 0; 32 } 33