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/* $Id: fcmpo.c,v 1.1 1999/08/23 18:59:26 cort Exp $
*/
#include <linux/types.h>
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
int
fcmpo(u32 *ccr, int crfD, void *frA, void *frB)
{
FP_DECL_D(A);
FP_DECL_D(B);
int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) };
long cmp;
int ret = 0;
#ifdef DEBUG
printk("%s: %p (%08x) %d %p %p\n", __FUNCTION__, ccr, *ccr, crfD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
#endif
if (A_c == FP_CLS_NAN || B_c == FP_CLS_NAN)
ret |= EFLAG_VXVC;
FP_CMP_D(cmp, A, B, 2);
cmp = code[(cmp + 1) & 3];
__FPU_FPSCR &= ~(0x1f000);
__FPU_FPSCR |= (cmp << 12);
*ccr &= ~(15 << ((7 - crfD) << 2));
*ccr |= (cmp << ((7 - crfD) << 2));
#ifdef DEBUG
printk("CR: %08x\n", *ccr);
#endif
return ret;
}
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