Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ad8fb553 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: math-emu: Replace DP_MBITS with DP_FBITS and SP_MBITS with SP_FBITS. 



Both were defined as 23 rsp. 52 though the mentissa is actually a bit more
than the fraction.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent f5410d19

arch/mips/math-emu/dp_add.c

+2 −2
Original line number Diff line number Diff line
@@ -153,7 +153,7 @@ union ieee754dp ieee754dp_add(union ieee754dp x, union ieee754dp y) 
		xe = xe;

		xs = xs;



		if (xm >> (DP_MBITS + 1 + 3)) { /* carry out */

		if (xm >> (DP_FBITS + 1 + 3)) { /* carry out */

			xm = XDPSRS1(xm);

			xe++;

		}
@@ -172,7 +172,7 @@ union ieee754dp ieee754dp_add(union ieee754dp x, union ieee754dp y) 
					      IEEE754_RD);



		/* normalize to rounding precision */

		while ((xm >> (DP_MBITS + 3)) == 0) {

		while ((xm >> (DP_FBITS + 3)) == 0) {

			xm <<= 1;

			xe--;

		}

arch/mips/math-emu/dp_div.c

+2 −2
Original line number Diff line number Diff line
@@ -129,7 +129,7 @@ union ieee754dp ieee754dp_div(union ieee754dp x, union ieee754dp y) 
		int re = xe - ye;

		u64 bm;



		for (bm = DP_MBIT(DP_MBITS + 2); bm; bm >>= 1) {

		for (bm = DP_MBIT(DP_FBITS + 2); bm; bm >>= 1) {

			if (xm >= ym) {

				xm -= ym;

				rm |= bm;
@@ -146,7 +146,7 @@ union ieee754dp ieee754dp_div(union ieee754dp x, union ieee754dp y) 


		/* normalise rm to rounding precision ?

		 */

		while ((rm >> (DP_MBITS + 3)) == 0) {

		while ((rm >> (DP_FBITS + 3)) == 0) {

			rm <<= 1;

			re--;

		}

arch/mips/math-emu/dp_fint.c

+2 −2
Original line number Diff line number Diff line
@@ -52,8 +52,8 @@ union ieee754dp ieee754dp_fint(int x) 
	}



	/* normalize - result can never be inexact or overflow */

	xe = DP_MBITS;

	while ((xm >> DP_MBITS) == 0) {

	xe = DP_FBITS;

	while ((xm >> DP_FBITS) == 0) {

		xm <<= 1;

		xe--;

	}

arch/mips/math-emu/dp_flong.c

+4 −4
Original line number Diff line number Diff line
@@ -52,15 +52,15 @@ union ieee754dp ieee754dp_flong(s64 x) 
	}



	/* normalize */

	xe = DP_MBITS + 3;

	if (xm >> (DP_MBITS + 1 + 3)) {

	xe = DP_FBITS + 3;

	if (xm >> (DP_FBITS + 1 + 3)) {

		/* shunt out overflow bits */

		while (xm >> (DP_MBITS + 1 + 3)) {

		while (xm >> (DP_FBITS + 1 + 3)) {

			XDPSRSX1();

		}

	} else {

		/* normalize in grs extended double precision */

		while ((xm >> (DP_MBITS + 3)) == 0) {

		while ((xm >> (DP_FBITS + 3)) == 0) {

			xm <<= 1;

			xe--;

		}

arch/mips/math-emu/dp_fsp.c

+4 −4
Original line number Diff line number Diff line
@@ -44,8 +44,8 @@ union ieee754dp ieee754dp_fsp(union ieee754sp x) 
		return ieee754dp_nanxcpt(builddp(xs,

						 DP_EMAX + 1 + DP_EBIAS,

						 ((u64) xm

						  << (DP_MBITS -

						      SP_MBITS))), "fsp",

						  << (DP_FBITS -

						      SP_FBITS))), "fsp",

					 x);

	case IEEE754_CLASS_INF:

		return ieee754dp_inf(xs);
@@ -53,7 +53,7 @@ union ieee754dp ieee754dp_fsp(union ieee754sp x) 
		return ieee754dp_zero(xs);

	case IEEE754_CLASS_DNORM:

		/* normalize */

		while ((xm >> SP_MBITS) == 0) {

		while ((xm >> SP_FBITS) == 0) {

			xm <<= 1;

			xe--;

		}
@@ -69,5 +69,5 @@ union ieee754dp ieee754dp_fsp(union ieee754sp x) 
	xm &= ~SP_HIDDEN_BIT;



	return builddp(xs, xe + DP_EBIAS,

		       (u64) xm << (DP_MBITS - SP_MBITS));

		       (u64) xm << (DP_FBITS - SP_FBITS));

}