mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 20:42:39 +00:00
5cd272085b
Towards the goal of having arch/powerpc not build anything over in arch/ppc move math-emu over. Also, killed some references to arch/ppc/ in the arch/powerpc Makefile which should belong in drivers/ when the particular sub-arch's move over to arch/powerpc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
39 lines
693 B
C
39 lines
693 B
C
#include <linux/types.h>
|
|
#include <linux/errno.h>
|
|
#include <asm/uaccess.h>
|
|
|
|
#include "soft-fp.h"
|
|
#include "double.h"
|
|
|
|
int
|
|
fsel(u32 *frD, void *frA, u32 *frB, u32 *frC)
|
|
{
|
|
FP_DECL_D(A);
|
|
|
|
#ifdef DEBUG
|
|
printk("%s: %p %p %p %p\n", __FUNCTION__, frD, frA, frB, frC);
|
|
#endif
|
|
|
|
__FP_UNPACK_D(A, frA);
|
|
|
|
#ifdef DEBUG
|
|
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
|
|
printk("B: %08x %08x\n", frB[0], frB[1]);
|
|
printk("C: %08x %08x\n", frC[0], frC[1]);
|
|
#endif
|
|
|
|
if (A_c == FP_CLS_NAN || (A_c != FP_CLS_ZERO && A_s)) {
|
|
frD[0] = frB[0];
|
|
frD[1] = frB[1];
|
|
} else {
|
|
frD[0] = frC[0];
|
|
frD[1] = frC[1];
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
printk("D: %08x.%08x\n", frD[0], frD[1]);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|