45 lines
878 B
C
45 lines
878 B
C
|
#include <linux/types.h>
|
||
|
|
#include <linux/errno.h>
|
||
|
|
#include <asm/uaccess.h>
|
||
|
|
|
||
|
|
#include <asm/sfp-machine.h>
|
||
|
|
#include <math-emu/soft-fp.h>
|
||
|
|
#include <math-emu/double.h>
|
||
|
|
|
||
|
|
int
|
||
|
|
fcmpu(u32 *ccr, int crfD, void *frA, void *frB)
|
||
|
|
{
|
||
|
|
FP_DECL_D(A);
|
||
|
|
FP_DECL_D(B);
|
||
|
|
FP_DECL_EX;
|
||
|
|
int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) };
|
||
|
|
long cmp;
|
||
|
|
|
||
|
|
#ifdef DEBUG
|
||
|
|
printk("%s: %p (%08x) %d %p %p\n", __func__, ccr, *ccr, crfD, frA, frB);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
FP_UNPACK_DP(A, frA);
|
||
|
|
FP_UNPACK_DP(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
|
||
|
|
|
||
|
|
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 0;
|
||
|
|
}
|