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URL https://opencores.org/ocsvn/or1k_soc_on_altera_embedded_dev_kit/or1k_soc_on_altera_embedded_dev_kit/trunk

Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [arch/] [powerpc/] [math-emu/] [fmuls.c] - Rev 3

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#include <linux/types.h>
#include <linux/errno.h>
#include <asm/uaccess.h>
 
#include "soft-fp.h"
#include "double.h"
#include "single.h"
 
int
fmuls(void *frD, void *frA, void *frB)
{
	FP_DECL_D(A);
	FP_DECL_D(B);
	FP_DECL_D(R);
	int ret = 0;
 
#ifdef DEBUG
	printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB);
#endif
 
	__FP_UNPACK_D(A, frA);
	__FP_UNPACK_D(B, frB);
 
#ifdef DEBUG
	printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
	       A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023);
	printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
	       B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023);
#endif
 
	if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
	    (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
		ret |= EFLAG_VXIMZ;
 
	FP_MUL_D(R, A, B);
 
#ifdef DEBUG
	printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
	       R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
#endif
 
	return (ret | __FP_PACK_DS(frD, R));
}
 

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