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#if !defined FOUR_OVER_PI_BUILD_FILE_NAME
#define FOUR_OVER_PI_BUILD_FILE_NAME	dpml_four_over_pi.c
#endif
#define NUM_F_DIGITS	2
#define NUM_G_DIGITS	4
#define NUM_W_DIGITS	4
#define NUM_REQ_BITS	250
#define NUM_EXTRA_BITS	6

#define W_HAS_M_BIT_LOSS	(((MSD_OF_W + 0x40000000000000ull) & 0x3f80000000000000ull) == 0)
#define G_DIGITS	g0, g1, g2, g3
#define F_DIGITS	F0, F1
#define TMP_DIGITS	t0, t1, t2, t3

#define MSD_OF_W	g3
#define LSD_OF_W	g1
#define SECOND_MSD_OF_W	g2
#define CARRY_DIGIT	t3

#define GET_F_DIGITS(x); \
	F1 = G_UX_FRACTION_DIGIT(x, 0); \
	F0 = G_UX_FRACTION_DIGIT(x, 1)

#define PUT_W_DIGITS(x); \
	P_UX_FRACTION_DIGIT(x, 0, g3); \
	P_UX_FRACTION_DIGIT(x, 1, g2)

#define NEGATE_W { \
	g3 = ~g3; \
	g2 = ~g2; \
	g1 = ~g1; \
	g1 += 1; CARRY_DIGIT = (g1 == 0); \
	g2 += CARRY_DIGIT; CARRY_DIGIT = (g2 == 0); \
	g3 += CARRY_DIGIT; }

#define GET_G_DIGITS_FROM_TABLE(p, extra_digit) \
	g3 = p[0];  \
	g2 = p[1];  \
	g1 = p[2];  \
	g0 = p[3];  \
	extra_digit = p[4];  \
	p += 5

#define LEFT_SHIFT_G_DIGITS(lshift, rshift, extra_digit) \
	g3 = (g3 << (lshift)) | (g2 >> (rshift)); \
	g2 = (g2 << (lshift)) | (g1 >> (rshift)); \
	g1 = (g1 << (lshift)) | (g0 >> (rshift)); \
	g0 = (g0 << (lshift)) | (extra_digit >> (rshift))

#define MULTIPLY_F_AND_G_DIGITS(c) \
	XMUL(g0,F0,t1,t0); \
	XMUL_ADD(g0,F1,t1,t2,t1); \
	g0 = t0; \
	XMUL_XADDC(g1,F0,t2,t1,c,t2,t1); \
	XMUL_XADD(g1,F1,c,t2,t0,t2); \
	g1 = t1; \
	XMUL_XADD(g2,F0,t0,t2,t0,t2); \
	MUL_ADD(g2,F1,t0,t0); \
	g2 = t2; \
	MUL_ADD(g3,F0,t0,t0); \
	g3 = t0

#define GET_NEXT_PRODUCT(g, w, c) \
	XMUL_XADDC(g,F0,g0,(DIGIT_TYPE)0,c,g0,w); \
	XMUL_XADDC_W_C_IN(g,F1,g1,g0,c,c,g1,g0); \
	if (c)  \
	if (++g2 == 0)  \
	g3++

#define LEFT_SHIFT_W_LOW_DIGITS_BY_ONE(extra_w_digit) \
	g2 = g1; \
	g1 = g0; \
	g0 = extra_w_digit