1 #include <linux/types.h> 2 #include <linux/errno.h> 3 #include <asm/uaccess.h> 4 5 #include "soft-fp.h" 6 #include "double.h" 7 8 int 9 fcmpu(u32 *ccr, int crfD, void *frA, void *frB) 10 { 11 FP_DECL_D(A); 12 FP_DECL_D(B); 13 int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) }; 14 long cmp; 15 16 #ifdef DEBUG 17 printk("%s: %p (%08x) %d %p %p\n", __FUNCTION__, ccr, *ccr, crfD, frA, frB); 18 #endif 19 20 __FP_UNPACK_D(A, frA); 21 __FP_UNPACK_D(B, frB); 22 23 #ifdef DEBUG 24 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 25 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 26 #endif 27 28 FP_CMP_D(cmp, A, B, 2); 29 cmp = code[(cmp + 1) & 3]; 30 31 __FPU_FPSCR &= ~(0x1f000); 32 __FPU_FPSCR |= (cmp << 12); 33 34 *ccr &= ~(15 << ((7 - crfD) << 2)); 35 *ccr |= (cmp << ((7 - crfD) << 2)); 36 37 #ifdef DEBUG 38 printk("CR: %08x\n", *ccr); 39 #endif 40 41 return 0; 42 } 43